US 8504778 Multi-core active memory processor system
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 8589628 Hybrid active memory processor system
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 8621151 Active memory processor system
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 8680523 Sensor for semiconductor degradation monitoring and modeling
Embodiments of the present invention provide a semiconductor sensor reliability system and method. Specifically, the present invention provides in-situ positioning of a reliability sensor (hereinafter sensors) within each functional block, as well as at critical locations, of a semiconductor system. The quantity and location of the sensors are…
US 8504778 Multi-Core Active Memory Processor System
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 6064590 Non-volatile static random access memory device
A non-volatile static random access memory device configured by adding a floating gate type metal oxide semiconductor device to an SRAM including a pair of access elements respectively switched on and off in accordance with the state of a signal on an address line and adapted to establish a data transfer path between memory cell and associated…
US 6747625 Digital Driving Circuit for Liquid Crystal Display
A digital driving circuit for a liquid crystal display which sequentially receives and displays n-bit digital video information from a data bus on a bit basis. The digital driving circuit comprises a first data latch for sequentially storing the digital video information from the data bus on a bit basis, a shift register for synchronizing a…
US 7822920 Mass Prefetching Method for Disk Array
Disclosed herein is a mass prefetching method for disk arrays. In order to improve disk read performance for a non-sequential with having spatial locality as well as a sequential read, when a host requests a block to be read, all the blocks of the strip to which the block belongs are read.
US 7983066 Passive Matrix-addressable Memory Apparatus
Disclosed is a passive matrix-addressable memory apparatus.
US 6891546 Cache Memory for 3-D Graphics
A cache memory for a texture mapping process which is applicable to a high performance three-dimensional graphics card for a personal computer, three-dimensional game machines and other fields requiring small and high performance three-dimensional graphics. In particular, in order to accelerate a texture mapping process based upon a hardware-used…
US 6545936 DRAM Memory with Low Latency
The present invention relates to a DRAM structure for reducing row latency for an irregular row access and for improving the effective bandwidth by varying a DRAM cell core structure, specifically, to a pipeline structure of a memory for a fast row cycle, which is different from a structure used in a conventional fast cycle RAM (FCRAM) and is…
US 6400640 Method for Memory Addressing
A Row-After-Column memory addressing method. The memory addressing method changes the order of addressing so as to enhance the efficiency of memory addressing. The Row-After-Column memory addressing method of the present invention comprises the steps of activating a column path by generating the column address when the address is input for data…
US 6327204 Method of Storing Information in a Memory Cell
A method of storing information in a memory cell. The method writes information via only the bit-line that is connected to a memory cell with respect to a word-line, and thus reduces the overall power consumption in the memory by reducing the unnecessary power consumption occurring from the change of voltage level in the bit-line that is not…
US 8014618 High-speed Motion Compensation Apparatus and Method
The present invention relates to a high-speed motion compensation apparatus and method. The high-speed motion compensation apparatus for H.264/AVC includes a bus interface unit for reading a plurality of word addresses from an external storage device, aligning the reference pixels arranged over the plurality of word addresses, temporarily storing…
A direct memory access apparatus and a direct memory access method.
US 8117406 Method of Storing Data into Flash Memory in a DBMS-independent Manner using
The present invention proposes an effective and efficient method of storing data called page-differential logging for flash-based storage systems. The primary characteristics of the invention are: (1) it writes only the page-differential that is defined as the difference between an original page in flash memory and an up-to-date page in memory;…
Multi-hop wireless networks have benefits in coverage extension and throughput improvement. In this multi-hop wireless networks, multiple channels are available to improve system performance through concurrent transmission. In this invention, a multi-channel assignment method is described. For efficient utilization of multiple channels considering…
US App 20120075349 System and Method for Motion Editing Multiple Synchronized Characters
Motion editing system which edits motions of multiple synchronized characters by editing a spatial route of inputted data, processing the distortion of the interaction time, and applying a discrete transformation.
Processing instructions by processing element which can proceed a branch statement with high speed, in the processing element constituting CGRA or SIMD by DISE method.
US 8200942 Hybrid multifunction component system with component interface encapsulation
This invention describes an apparatus, architecture, method, operating system, data network, and application program products for a hybrid digital system with multiple heterogeneous components. This invention is applied to a multiple generic microprocessor architecture s with a set (e.g., one or more cores) of controlling components and a set of…
US 7729562 Method of detecting alignment error of lenses and compensating for image
A method of detecting the alignment error of lenses and reducing image distortion attributable to the alignment error in a lens-type 3-dimensional liquid crystal display monitor. A method of detecting the alignment error of lenses in a 3D display using a purpose-built test pattern image, which predicts the alignment error in such a way as to…
Disclosed is a method for preparation of a liquid crystal film having uniaxial alignment, comprising steps of: elevating temperature of a substrate coated with a nanostructure formed of liquid crystal molecules to a value sufficient to alter the nanostructure into a liquid phase; and decreasing the temperature to another value sufficient to…
US 7868548 Plasma display panel and low temperature fabrication method thereof
Disclosed is a plasma display panel fabricated by low temperature process at not more than 300° C. More particularly, the present invention provides a plasma display panel comprising at least one of a dielectric layer in an upper plate, another dielectric layer and barrier ribs in a lower plate, and a sealing material for the upper and lower…
US 6046714 Flat display employing light emitting device and electron multiplier
The present invention related to a flat display employing light emitting device and electron multiplier. A flat display of the present invention is fabricated to comprise the following three parts: an electron emission part of a flat substrate, light emitting device being arrayed at regular intervals in one side of the substrate and driven by…
US 6538263 Polymer electroluminescent device employing emissive ionomer-type polymer
The present invention provides ionomer-type emissive polymer whose heat-stability is improved by the formation of ionic cross-link, and electroluminescent device employing the same as an emissive layer. The ionomer-type emissive polymer is characterized by an ionomeric conformation, which has a backbone in a conjugate, non-conjugate or…
US 6727642 Flat Field Emitter Displays
Disclosed are flat panel field emitter displays whose unit cell structure adopt a planar cathode structure in stead of a conventional microtip structure, so as to increase the degree of integration and can be operated at low operation voltages at high speeds. In the structure, a channel insulator is formed below the cathode and underlaid by a…
US 6747625 Digital Driving Circuit for Liquid Crystal Display
A digital driving circuit for a liquid crystal display which sequentially receives and displays n-bit digital video information from a data bus on a bit basis. The digital driving circuit comprises a first data latch for sequentially storing the digital video information from the data bus on a bit basis, a shift register for synchronizing a…
US 6749895 Polymer for Preparing Liquid Crystal Alignment Layer
The present invention provides a polymer in which coumarin, a photo-reactive molecule, is grafted onto a polyimide for preparing liquid crystal alignment layer which has a superior alignment property and an excellent thermal stability in photo-alignment, a process for preparing the said grafted polymer, a process for preparing liquid crystal…
US 6731362 Polymer Blend for Preparing Liquid Crystal Alignment Layer
The present invention relates to a polymer blend of cinnamate polymer and polyimide polymer, which are photo-reactive polymers, for preparing liquid crystal alignment layer having a high pretilt angle in photo-alignment, a process for preparing liquid crystal alignment layer by employing the said blend, a liquid crystal alignment layer prepared by…
US 6866721 Apparatus and Method for Photo-induced Process
Apparatus for a photo-induced process are provided, which implement a transparent film (instead of an optical window), to reduce light absorption loss that would result from use of an optical window. A photo-induced process apparatus eliminates problems of conventional systems which use optical windows, such as blurring an optical window and the…
US 7766713 Method of Manufacturing Barrier Rib for Plasma Display Panel
Disclosed herein is a method of manufacturing a barrier rib for a plasma display panel, including a silicon compound resin. The method according to a first embodiment of this invention includes providing a silicon compound resin layer on a substrate; pressing the silicon compound resin layer using a master having a pattern corresponding to the…
US 7764212 Driving Apparatus for Display
A driving apparatus for a display is provided. The driving apparatus for a display comprises a reference voltage generator, a digital-to-analog converter, and an output unit. The reference voltage generator generates a plurality of reference voltages, and receives a difference value between two adjacent reference voltages and generates a plurality…
US 7830337 Method and Apparatus for Driving AC Plasma Display Panel with Four Electrodes
The present invention provides a driving method of a plasma display panel with ADS method comprising a reset period including an erase period, a rising period and a falling period, an address period and a sustain period, in which an auxiliary electrode is inserted between a scan electrode and a sustain electrode which are disposed in parallel on a…
In a method of manufacturing a flexible display substrate having reduced moisture permeability and reduced oxygen permeability, nanosized or microsized particles are uniformly dispersed in a molten polymer matrix. The molten polymer matrix are formed into plate-shaped molten polymer. The plate-shaped molten polymer is extruded between two…
US 7876292 Active matrix OLED driving circuit using current feedback
An active matrix organic light emitting diode AMOLED driving circuit using current feedback that ensures the uniformity of brightness in pixels of a flat panel display and shortens the time required to input accurate current to respective pixels in the driving circuit.
US 7136031 Reflecting Three-dimensional Display System
The present invention provides a reflection-type three-dimensional display system. The present invention comprises an image providing device that provides elemental images; an image displaying device that displays the elemental images; a projective lens system that is located along the same axis as the image providing device; and a concave mirror…
The present invention relates to a method and apparatus for examining Plasma Display Panel (PDP) electrodes using frequency characteristics, which can rapidly examine the PDP electrodes for defects and detect the positions thereof using frequency characteristics of signals passing through the PDP electrodes in the PDP. In the present invention, a…
US 7151510 Method of Driving Plasma Display Panel
The present invention is to provide a method and apparatus for driving an AC PDP, where background luminance is reduced and the time required for a reset period is shortened while the stability and an address margin are sufficiently maintained, thus improving reset performance. The present invention provides a method of driving an Alternating…
A pixel structure using a voltage programming type active matrix organic light emitting diode (OLED) which can minimize a current deterioration phenomenon. The pixel structure includes a fifth TFT receiving an external management signal EMS through its gate, having a drain region connected to a cathode part of an OLED, and receiving an input of an…
US 8149187 Organic Light Emitting Display
An organic light emitting display that can minimize degradation of a drive transistor comprising a first switching element whose control electrode is electrically coupled to a scan line, being electrically coupled between a data line and a first voltage line for transmitting a data signal; a drive transistor whose control electrode is electrically…
US 7091992 Three-dimensional Image Display
The present invention provides a three-dimensional display system by using Integral Photography (TIP) technology. The present invention comprises an elemental lens switch located between a lens array and an image display for selectively opening and closing each elemental lens; an image processor for generating elemental images and synchronizing…
US 6373195 AC Plasma Display Panel
The present invention relates to an AC plasma display panel for achieving improved absolute luminance and luminous efficiency at the same time, which comprises a rear substrate formed with separated sub-pixel spaces defined thereon by closed shape barrier ribs for forming color pixels respectively composed of three sub-pixels of red, green and…
US 6538627 Energy Recovery Driver Circuit for AC Plasma Display Panel
The present invention provides an energy recovery driver circuit for the AC plasma display panel having an enhanced energy recovery efficiency with a short voltage rise and fall period. The energy recovery driver circuit comprises an energy recovery part interposed between the sustain driver circuits for the X1 and X2 electrodes and the other…
A method for manufacturing substrate for alignment of liquid crystal ensuring wide viewing angle and alignment stability.
PCT KR2010-006608 Plasma Display Panel Having a Diffusion Barrier
Plasma display panel having a diffusion barrier and by preventing the diffusion of impurities, discharging is stabilized during an initial period of aging, the plasma display panel can be driven at a low voltage, and the discharging efficiency of the plasma display panel can be improv
US 6944347 Image Compression and Restoring Method for Binary Images
The present invention relates to the image compression and restoring method for binary images that can be used in binary image equipment including printers.
US 8121431 Method and apparatus for detecting edge of image and computer readable
The present invention provides a method and apparatus for detecting a noise distribution of an image close to a true distribution, and detecting an edge of the image precisely and quickly based on the detected noise distribution without performing a smoothing process for the image, and a computer readable medium processing the method. The method…
A method for graphical hairstyle generation presents an interactive technique that produces static hairstyles by generating individual hair strands of the desired shape and color, subject to the presence of gravity and collisions. A variety of hairstyles can be generated by adjusting the wisp parameters while the deformation is solved efficiently…
US 8231054 B1, US 8418922 B1, US 8561899 B2 Time-varying barcodes for information exchange
Embodiments of the present invention provide time-varying barcodes, (and graphs & images) for information exchange. Specifically, embodiments of the present invention provide a system and method for communicating information between electronic devices via a time-varying barcode image sequence. In a typical embodiment, information to be transmitted…
US 7650113 Apparatus for receiving wide-band pulse signal in communication channel
Disclosed herein is an apparatus for receiving a wide-band pulse signal in a communication channel using a human body. When a weak wide-band pulse signal, which is output from a communication channel using a human body as a data transmission medium, is restored to a digital signal, it is possible to accomplish low power consumption and high data…
Disclosed herein is a signal level conversion circuit for increasing the dynamic range of an Analog-to-Digital Converter (ADC). A comparison and calculation unit compares the value of an input signal Vin and the value of a first reference signal Vref1 and compares the value of the input signal Vin and the value of a second reference signal Vref2,…
US 7750742 Enhanced all digital phase-locked loop and oscillation signal generation
An All Digital PLL (ADPLL) and oscillation signal generation method using the ADPLL is provided for generating a spur-free oscillation signal by improving the frequency resolution of the ADPLL.
The present invention relates to a SiP having reduced influence between a conductor and an antenna, and a method of designing the SiP. The SiP includes an antenna configured to function to transmit or receive data and mounted in the SiP to be integrated in the SiP, and a first planar conductor having at least one slit formed therein.
US 7835420 Orthogonal resource block hopping multiplexing method and apparatus
An orthogonal resource block hopping multiplexing (ORBHM) method and apparatus in a wired/wireless communication system in which a plurality of communication channels coexist in a single medium. The orthogonal resource block hopping multiplexing (ORBHM) communication system consists of a first communication station and a plurality of second…
US 7339511 Time division sampling digital to analog converter for driving flat panel
Disclosed herein are a time division sampling digital to analog converter for a flat panel display, a method of implementing the digital to analog converter, and a data driver circuit using the digital to analog converter. The time division sampling digital to analog converter includes a timing signal generation means for generating timing…
An optical fiber, and an optical access network, a local area network and optical parts for communication, which uses the optical fiber, are disclosed. The optical fiber whose core diameter is 10 μm˜40 μm has at least two propagation modes in a wavelength over 1200 nm.
A communication recovering system for a wavelength division multiplexed passive optical network (WDM PON) includes a central office and remote nodes. When there is a fault in an optical fiber connecting a first blue/red band coupler to a blue/red band coupler R11, optical signals are inputted/outputted thereto/therefrom through a first 1×2…
US 6021237 All-fiber acousto-optic tunable filter
This invention relates to an all-fiber acousto-optic tunable wavelength filter which is useful in optical communications or optical fiber sensor systems. The present invention provides an all-fiber acousto-optic tunable filter, comprising: a length of optical fiber for propagating optical waves; a first mode converting means for selectively…
The present invention relates to a passive optical network, which inexpensively improves the spectral efficiency of an access network and is capable of increasing the number of subscribers per channel by using WDM in combination with Time Division Multiplexing (TDM) or SubCarrier Multiple Access (SCMA) to expand a conventional WDM passive optical…
US 7936994 Broadband light source using fabry perot laser diodes
Disclosed is a broadband light source (BLS) necessary to implement wavelength-locked Fabry-Perot (FP) laser diodes (LDs) applicable to an optical subscriber network The BLS is based on a method using mutual injection of low-cost FP LDs and a method using FP LDs undergoing chirping. A power level of a light emitting diodes (LED), an erbium-doped…
US 8040964 Apparatus for receiving T-DMB signal and method of operating the same
There is provided an apparatus for receiving a T-DMB signal. The apparatus for receiving a T-DMB signal comprises an input buffer receiving and buffering a T-DMB signal comprising a null symbol and a phase reference symbol (PRS); an initial synchronizing unit estimating and compensating for time and frequency offsets of the T-DMB signal using the…
US 6895185 Fiber optic networks
The present invention relates to an optical fiber access network, and more particularly, to a multi-purpose optical fiber access network capable of accepting all services provided by hybrid wireline/wireless access network.
US 6735391 Error correction and signal recovery in optical communications
The present invention relates to an automatic retrieval method of a wavelength-division multiplexed (WDM) ring network to the normal state after recovery of a failure. More specifically, the present invention relates to an automatic retrieval method of a WDM ring network to the normal state after recovery of a failure by inducing a lasing by…
US 6775050 Precision micromirror actuators for optical communications
Disclosed is a micromirror actuator that includes: a substrate provided with an insulating layer formed thereon; two lower columns spaced from each other by a designated distance, and formed on the insulating layer; a first torsion bar extending over upper surfaces of the lower columns; a second torsion bar formed so that the first and second…
US 6775058 Optical signal amplifiers
The present invention discloses a wide band optical amplifier with a common mid-stage device. In the wide band optical amplifier according to the present invention, the signals that enter the amplifier are first split into a couple of sub-band signals. The sub-band signals are amplified independently at different optical amplification sections,…
US 8958134 Image array with localized light source
Embodiments of the present invention provide lighting for an image array. Specifically, embodiments of the present invention provide a system and method for providing localized lighting for an image array. In a typical embodiment, a set of pixels being scanned in the image array is identified. A subset of light sources within an array of light…
US 6526037 Signal decoding in CDMA systems
A method for allocating signature sequence used to distinguish my own signal from the other user’s signals in a code division multiple access system comprising the steps of obtaining and selecting a Park-Song sequence based upon a specific equations; allocating the selected Park-Song sequence as the signature sequence to the pertinent user;…
US 6021237 All-fiber acousto-optic tunable filter
This invention relates to an all-fiber acousto-optic tunable wavelength filter which is useful in optical communications or optical fiber sensor systems. The present invention provides an all-fiber acousto-optic tunable filter, comprising: a length of optical fiber for propagating optical waves.
US 6034770 Interferometric laser sensor having a linear laser cavity
An interferometer-type laser sensor acts concurrently as a light source and to measure external physical quantities such as rotation, magnetic field, current and fluid velocity. The interferometer-type laser sensor has a laser resonator having a laser gain medium, optical path and two or more reflectors to reflect incident light toward an opposite…
US 6253004 Optical interconnection structure for enlarging alignment tolerance
An optical interconnection structure between an optoelectric device and a single mode optical fiber for enlarging an alignment tolerance is provided. The optical interconnection structure is constituted by a microlensed optoelectric device and a graded index fiber ended single mode optical fiber.
US 6246811 Irreversible Optical Device Utilizing Optical Frequency Shift
An irreversible optical device using an optical frequency shift. The invention provides an irreversible phase shifter including frequency shifters. An irreversible interferometer is also provided which includes the irreversible phase shifter. The invention also provides an irreversible interferometer using a twin-mode optical fiber. In addition to…
US 6548806 Apparatus for Monitoring Frequency of WDM Signals Using Pilot Tone
An apparatus monitoring frequency of WDM signals using pilot tone and two interleaved solid etalon filters for efficient management and maintenance of wavelength division multiplexing optical transmission network is provided. Desirably, the apparatus for optical frequency monitoring includes splitting means, a plurality of optical filtering means,…
US 7171123 Method for decreasing and compensating the transmission loss at a wavelength …
The present invention relates to a wavelength-division multiplexed passive optical network. In particular, it relates to a technology for minimizing the optical loss at a wavelength-division multiplexed passive optical network based on wavelength-locked light source Thereby it improves the transmission quality and increases the transmission…
US 7268027 Method of Manufacturing Photoreceiver
Disclosed is a method of manufacturing a photoreceiver, including sequentially laminating a buffer layer, a channel layer, a barrier layer, and a cap layer on a substrate; forming a mesa for HEMT and MSM PD by removing the buffer layer, the channel layer, the barrier layer, and the cap layer with the exception of a region corresponding to HEMT and…
US 7253945 Amplitude Dividing Type Laser Amplification Apparatus
An optical amplification apparatus includes a polarizing beam splitter for reflecting a portion of an incident light and transmitting a remaining portion of the incident light, depending upon a polarized state of the incident light, at least two optical amplification means each including a first polarizing plate which makes polarized states of the…
US 7369771 Optical network terminator and optical network connection method using it
An optical network terminator of the present invention includes an optical wavelength division multiplexer for receiving an optical signal and incoherent light. An optical detection unit converts a downstream high speed and low speed optical signals into electrical signals. A laser diode converts an upstream signal into an optical signal. A high…
US 7684769 Data Communication Apparatus and Module Using Human Body
In circumstance of a wearable computing system, in order to effectively transfer data between electronic devices using electric property of human body, minimization, low power, and high-speed are required. Human body data communication apparatus and module using broadband signaling technology is provided to perform high-speed peer-to-peer data…
US 7710200 Output Buffer and Power Amplifier Comprising thereof
The present invention relates an output buffer and a power amplifier having the same. The output buffer includes a push-pull circuit unit, an output unit, and a driver. The push-pull circuit unit includes transistors connected to each others in a push-pull formation between a high level power voltage and a low level power voltage. The output unit…
US 6559984 Fiber Optic Network Path Monitoring
The present invention relates to an optical path monitoring device on the basis of the identification of input ports in optical cross-connect systems. An optical path monitoring apparatus in an optical cross-connect system is provided. The optical cross-connect system in accordance with the present invention includes input ports,…
US 6538784 Fiber Optic Network Switches and Routers
This invention relates to a multicast-capable optical cross-connect with layered modularity. Due to its layered modularity, this invention can be applied to many differently structured networks and provides easier maintenance than conventional optical cross-connects and efficient preparation for network evolution or node upgrade. By exploiting its…
US 6396574 Apparatus for measuring the wavelength, optical power and optical signal-to …
An apparatus for measuring the wavelength, optical power, and an optical signal-to-noise ratio (OSNR) of each optical signal in wavelength-division-multiplexing optical communication includes: elements for splitting a part of wavelength-division-multiplexed (WDM) signals, elements for amplifying the WDM signals and generating spontaneous emission…
US 6188509 Simple bidirectional add/drop amplifier module based on a single multiplexer
This invention is to construct a bidirectional WDM add/drop amplifier module for transmitting WDMS in bidirection and for adding/dropping a signal in bidirection at each node in a WDM network system using a single N.times.N multiplexer. The bidirectional WDM add/drop amplifier module comprises an 8.times.8 arrayed-waveguide grating. The 8.times.8…
A multi-phase ultra-wideband signal generator uses differential pulse oscillators. The multi-phase ultra-wideband signal generator using differential pulse oscillators includes N pulse oscillators for generating pulse signals based on a supply of power, and further comprises N inverting amplification units for outputting inverted amplified signals…
The present invention relates to an OPCPA apparatus. The OPCPA of the present invention includes an optical pulse stretcher for outputting chirped laser light using odd-order dispersion (third-order dispersion is mainly used). A pump laser outputs pump laser light. An OPA unit receives the pump laser light and the chirped laser light (signal),…
The present invention relates to an optical modulation method and optical modulation system of a wavelength locked Fabry Perot-Laser Diode (FP-LD) by injecting a broadband light source (BLS) using mutual injection of FP-LDs. More specifically, the present invention relates to a novel modulation technology which embodies a wavelength locked FP-LD…
The present invention discloses a wavelength-division multiplexing passive optical network (WDM-PON) capable of high-bandwidth transmission for optical signals by using modulation format having high spectral efficiency. The WDM-PON according to the present invention provides a larger capacity and higher bandwidth transmission economically (at…
US 8117406 Method of Storing Data into Flash Memory in a DBMS-independent Manner using
The present invention proposes an effective and efficient method of storing data called page-differential logging for flash-based storage systems. The primary characteristics of the invention are: (1) it writes only the page-differential that is defined as the difference between an original page in flash memory and an up-to-date page in memory;…
US 8116628 Wavelength-division multiplexed passive optical network for embodying …
The present invention relates to a wavelength-division multiplexed passive optical network (WDM-PON) which embodies wavelength-independence of wavelength-locked Fabry Perot-Laser Diode (F-P LD). A WDM-PON of the present invention comprises an optical fiber being used for optical transmission to and from a broadband light source (BLS) with a low…
The present invention relates to a method for estimating an optimized transmission bit rate in a wireless local area network (LAN) system, which is to provide an accurate data transmission bit rate according to channel status when block data are transmitted in the wireless LAN system. According to the present invention, there is provided a method…
Multi-hop wireless networks have benefits in coverage extension and throughput improvement. In this multi-hop wireless networks, multiple channels are available to improve system performance through concurrent transmission. In this invention, a multi-channel assignment method is described. For efficient utilization of multiple channels considering…
A method for self configuration of wireless sensor network(WSN) based on the cluster tree structure, enables performance of large scale self configuration of WSN to improve.
A method for transmitting a signal while avoiding the influences of an interference signal in the same channel, temporarily transceive signals using a plurality of available transmission channels and determines the channel having a best link state as a transmission channel from among the plurality of used transmission channels and returns to
Provided are an apparatus, a method, a receiver, and a computer readable recording medium for time synchronization offset compensation. The apparatus includes an average time synchronization offset calculator, a reference clock frequency difference calculator, and a time synchronization offset compensator.
US 6947891 Efficient Speech Recognition System Bases on an Auditory Model
A speech recognition system that is insensitive to external noise and applicable to actual life includes an A/D converter that converts analog voice signals to digital signals. An FIR filtering section employs powers-of-two conversion to filter the digital signals converted at the A/D converter into numbers of channels. A characteristic extraction…
US 8121431 Method and apparatus for detecting edge of image and computer readable
The present invention provides a method and apparatus for detecting a noise distribution of an image close to a true distribution, and detecting an edge of the image precisely and quickly based on the detected noise distribution without performing a smoothing process for the image, and a computer readable medium processing the method. The me
US 8589628 Hybrid active memory processor system
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 8621151 Active memory processor system
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 8504778 Multi-Core Active Memory Processor System
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 7983066 Passive Matrix-addressable Memory Apparatus
Disclosed is a passive matrix-addressable memory apparatus. The passive matrix-addressable memory apparatus comprises: a plurality of first electrode lines horizontally arranged with respect to each other; a plurality of second electrode lines disposed orthogonal to the plurality of first electrode lines to be horizontally arranged with respect to…
US 6064590 Non-volatile static random access memory device
A non-volatile static random access memory device configured by adding a floating gate type metal oxide semiconductor device to an SRAM including a pair of access elements respectively switched on and off in accordance with the state of a signal on an address line and adapted to establish a data transfer path between memory cell and associated…
US 6768158 Flash Memory Element and Manufacturing Method thereof
The present invention provides a flash memory element and its manufacturing method having improved overall memory characteristics by constituting a double-gate element for improving the scaling down characteristic of flash memory element. With the above double-gate flash memory structure, a flash memory element in the present invention improves…
US 6927997 3-transistor OTP ROM using CMOS gate oxide antifuse
The present invention relates to an OTP ROM using a CMOS gate oxide antifuse. According to an embodiment of the present invention, in an OTP ROM cell having a first input terminal, a second input terminal and a third input terminal, wherein the OTP ROM stores data by means of a voltage applied to the first to third input terminals, the OTP ROM…
US 7315267 Mixed-mode Semiconductor Memory
A mixed-mode semiconductor memory includes a memory bank array, an analog/digital converter, a digital/analog converter, a plurality of digital buses and a control unit. The memory bank array includes a plurality of memory banks that are each composed of a plurality of pieces of single port memory. The analog/digital converter converts an input…
US 7822920 Mass Prefetching Method for Disk Array
Disclosed herein is a mass prefetching method for disk arrays. In order to improve disk read performance for a non-sequential with having spatial locality as well as a sequential read, when a host requests a block to be read, all the blocks of the strip to which the block belongs are read.
US 7983066 Passive Matrix-addressable Memory Apparatus
Disclosed is a passive matrix-addressable memory apparatus.
US 6891546 Cache Memory for 3-D Graphics
A cache memory for a texture mapping process which is applicable to a high performance three-dimensional graphics card for a personal computer, three-dimensional game machines and other fields requiring small and high performance three-dimensional graphics. In particular, in order to accelerate a texture mapping process based upon a hardware-used…
US 6545936 DRAM Memory with Low Latency
The present invention relates to a DRAM structure for reducing row latency for an irregular row access and for improving the effective bandwidth by varying a DRAM cell core structure, specifically, to a pipeline structure of a memory for a fast row cycle, which is different from a structure used in a conventional fast cycle RAM (FCRAM) and is…
US 6400640 Method for Memory Addressing
A Row-After-Column memory addressing method. The memory addressing method changes the order of addressing so as to enhance the efficiency of memory addressing. The Row-After-Column memory addressing method of the present invention comprises the steps of activating a column path by generating the column address when the address is input for data…
US 6327204 Method of Storing Information in a Memory Cell
A method of storing information in a memory cell. The method writes information via only the bit-line that is connected to a memory cell with respect to a word-line, and thus reduces the overall power consumption in the memory by reducing the unnecessary power consumption occurring from the change of voltage level in the bit-line that is not…
US 6239624 Low-power Sense Amplifier for Memory
A low-power sense amplifier for a memory is provided, which includes a differential amplifier for sensing and amplifying a weak voltage signal of a bit line connected to a memory cell, and a latch amplifier for storing data inputted thereto, the latch amplifier being operated by the output signal of the differential amplifier, the sense amplifier…
A direct memory access apparatus and a direct memory access method.
US 8117406 Method of Storing Data into Flash Memory in a DBMS-independent Manner using
The present invention proposes an effective and efficient method of storing data called page-differential logging for flash-based storage systems. The primary characteristics of the invention are: (1) it writes only the page-differential that is defined as the difference between an original page in flash memory and an up-to-date page in memory;…
Provided are a photonic memory device, a method of storing data using the photonic memory device, and a photonic sensor device. The photonic memory device comprises a signal line through which a photon is input; a ring resonator receiving a photon through an input gap that is adjacent to the signal line and storing the photon; and a detect line…
US 8144514 One-transistor floating-body DRAM cell device with non-volatile function
The 1T floating-body DRAM cell device includes a floating body for storing information of the DRAM cell device, a source and a drain formed on respective sides of the floating body, a gate insulating layer formed on a top of the floating body, a gate electrode formed on a top of the gate insulating layer, a gate stack formed under the floating…
Provided are a method for read-out of information in a magnetic recording element and a method for read-out of information in a magnetic random access memory. In the method, a magnetic recording element including a magnetic free layer where a magnetic vortex is formed is prepared, and “0” or “1” is assigned according to a core orientation of a…
A NAND flash memory array, an operating method and a fabricating method of the same are provided. The NAND flash memory array has a cut-off gate line under a control gate in order to operate two cells having vertical channels independently with one control gate (i.e., a shared word line). The memory cell area is reduced considerably compared to…
A resistance memory element, a phase change memory element, a resistance random access memory device, an information reading method thereof, a phase change random access memory device, and an information reading method thereof are provided. The resistance random access memory device includes an array of resistance memory element arranged in a…
US 7005700 Double-gate Flash Memory Device
The conventional flash memory device is fabricated by the MOS processing technology on a bulk substrate and has a similar configuration to an MOS device. While the conventional CMOS device has a superior scaling down characteristic, the scaling down characteristic of a flash memory device is poor due to the inability to reduce the thickness below…
US 7498632 Saddle Type Flash Memory Device and Fabrication method thereof
The present invention relates to a nano-scale flash memory device having a saddle structure, and a fabrication method thereof. Particularly, the invention relates to a highly integrated, high-performance flash memory device having a saddle structure for improving the scaling-down characteristic and performance of the MOS-based flash memory device.…
US 8030699 Flash Memory Device
Disclosed herein is a flash memory device in which the distribution of threshold voltage is significantly reduced and the durability is improved even though a floating gate has a micro- or nano-size length. It comprises a tunneling insulation film formed on a semiconductor substrate; a multilayer floating gate structure comprising a first thin…
US 7863643 Memory Cell Device Having Vertical Channel and Double Gate Structure
A memory cell device having a vertical channel and a double gate structure is provided. More specifically, a memory cell device having a vertical channel and a double gate structure is characterized by having a pillar active region with a predetermined height, which is including a first semiconductor layer forming a first source/drain region, a…
US 8035157 High Density Flash Memory Device and Fabricating Method thereof
The present invention provides a flash memory device having a high degree of integration and high performance. The flash memory device has a double/triple gate structure where a channel is formed in a wall-shaped body. The flash memory device has no source/drain regions. In addition, although the flash memory device has the source/drain regions,…
US 7872297 Flash memory device and fabricating method thereof comprising a body recess region
The present invention relates to a flash memory device and its fabrication method. The device comprises a structure for improving a scaling-down characteristic/performance and increasing memory capacity of the MOS-based flash memory device. A new device structure according to the present invention is based on a recessed channel capable of…
US 8143656 High performance one-transistor DRAM cell device and manufacturing method thereof
Provided are a high-performance one-transistor floating-body DRAM cell device and a manufacturing method thereof. The one-transistor floating-body DRAM cell device includes: a semiconductor substrate; a gate stack which is formed on the semiconductor substrate; a control electrode which is formed on the semiconductor substrate and surrounded by…
US 7960778 Flash Memory Cell String
The present invention relates to a flash memory cell string. The flash memory cell string includes a plurality of cell devices and switching devices connected to ends of the cell devices. Each of the cell devices includes a semiconductor substrate, and a transmissive insulating layer, a charge storage node, a control insulating layer and a control…
PCT KR2010-000704 Stacked nor Flash Memory Array and Method of Manufacturing same
A stacked NOR flash memory array and a method of manufacturing same, which enables memory capacity to be increased by as much as necessary through vertical stacking.
A semiconductor device having a stacked array structure, which has gate all around(GAA) structure, so that control of gate for each channel has the effect of impro
The present invention relates to a SiP having reduced influence between a conductor and an antenna, and a method of designing the SiP. The SiP includes an antenna configured to function to transmit or receive data and mounted in the SiP to be integrated in the SiP, and a first planar conductor having at least one slit formed therein.
US 7835420 Orthogonal resource block hopping multiplexing method and apparatus
An orthogonal resource block hopping multiplexing (ORBHM) method and apparatus in a wired/wireless communication system in which a plurality of communication channels coexist in a single medium. The orthogonal resource block hopping multiplexing (ORBHM) communication system consists of a first communication station and a plurality of second…
US 7920887 System and method for setting up P2P communication group in cellular system
Disclosed herein are a system and method for setting up a Peer-to-Peer (P2P) communication group in a cellular system, and a P2P communication system and method using the P2P communication group. The system for setting up a P2P communication group for a terminal in a cellular system including a base station and the terminals includes a location…
US 8040964 Apparatus for receiving T-DMB signal and method of operating the same
There is provided an apparatus for receiving a T-DMB signal. The apparatus for receiving a T-DMB signal comprises an input buffer receiving and buffering a T-DMB signal comprising a null symbol and a phase reference symbol (PRS); an initial synchronizing unit estimating and compensating for time and frequency offsets of the T-DMB signal using the…
US 8054807 Handover method for mobile WiMAX network based on human mobility behavior
A Handover method in a mobile WiMAX network includes sending a list of target BSs for possible HO acquired by an MSS to a serving BS; providing, at the serving BS, a HO request to the target BSs in the list along with an unique identifier identifying the MSS to collect association responses from the target BSs; providing, at the serving BS, the…
US 8958134 Image array with localized light source
Embodiments of the present invention provide lighting for an image array. Specifically, embodiments of the present invention provide a system and method for providing localized lighting for an image array. In a typical embodiment, a set of pixels being scanned in the image array is identified. A subset of light sources within an array of light…
US 6526037 Signal decoding in CDMA systems
A method for allocating signature sequence used to distinguish my own signal from the other user’s signals in a code division multiple access system comprising the steps of obtaining and selecting a Park-Song sequence based upon a specific equations; allocating the selected Park-Song sequence as the signature sequence to the pertinent user;…
US 7929963 Cognitive radio based air interface method in wireless communication system
A cognitive radio-based wireless communication system and an air interface method in a physical layer and a data link layer, which constitute a cognitive radio-based next-generation wireless communication system. The air interface method for wireless communication in the cognitive radio-based wireless communication system of the present invention…
US 7964944 System on Package of a Mobile RFID Interrogator
The present invention is to implement a SOP of a mobile RFID interrogator. The substrate has external connection terminal patterns on a first surface of a substrate and circuit wiring patterns on a second surface of the substrate. a high frequency front-end part, a power amplifier IC, an analog-digital signal processing chip and the like are…
US 8022784 Planar transmission line-to-waveguide transition apparatus having an embedded bent stub
A wireless communication module includes a plurality of monolithic millimeter-wave integrated circuits (MMICs) for signal processing attached to the top surface of a multi-layer low temperature co-fired ceramic substrate; a planar transmission line formed on the top surface of the multi-layer substrate for communications between the MMICs; a metal…
PCT KR2011-000928 Apparatus and Method for Controlling Motion
Controlling character in complex virtual environment. Controlling character can modify 3D path information and change motion fragment, based on constraint information.
US App 20130211586 Apparatus and Method for Controlling a Data-Based Biped
A biped control, wherein target pose information for tracking control is provided by an animation engine, and/or is generated by modulating the reference pose information acquired from video capture data.
US 8256673 Time-varying barcode in an active display
Embodiments of the present invention provide time-varying barcodes in an active display for information exchange. Specifically, embodiments of the present invention provide a system and method for communicating information between electronic devices via a barcode image sequence. In a typical embodiment, a barcode image sequence is displayed on…
US 7729587 Method of producing planar multimode optical waveguide using direct photopatterning
Disclosed is a method of producing a planar multimode optical waveguide by direct photo-patterning and, more particularly, to an optical waveguide material and a method of producing the same. It is possible to control the refractive index of the optical waveguide, and the optical waveguide has a desirable refractive index distribution throughout…
Disclosed herein is a flexible film optical waveguide, which is in flexible film form and includes upper and lower cladding layers, each of which is formed of an organic-inorganic hybrid material, and a core layer provided between the upper and lower cladding layers and formed of an organic-inorganic hybrid material having a refractive index…
US 7394548 Heterodyne laser interferometer using heterogenous mode helium-neon laser
In the method and a device for detecting the phase of a moving object using a heterodyne interferometer, a heterogeneous mode helium-neon laser is used as a direct light source to increase a measuring speed, a measuring resolution, and minimize the loss of the light source. Signals, which have only a frequency difference between reference signals…
US 7729562 Method of detecting alignment error of lenses and compensating for image
A method of detecting the alignment error of lenses and reducing image distortion attributable to the alignment error in a lens-type 3-dimensional liquid crystal display monitor. A method of detecting the alignment error of lenses in a 3D display using a purpose-built test pattern image, which predicts the alignment error in such a way as to…
An optical fiber, and an optical access network, a local area network and optical parts for communication, which uses the optical fiber, are disclosed. The optical fiber whose core diameter is 10 μm˜40 μm has at least two propagation modes in a wavelength over 1200 nm.
A communication recovering system for a wavelength division multiplexed passive optical network (WDM PON) includes a central office and remote nodes. When there is a fault in an optical fiber connecting a first blue/red band coupler to a blue/red band coupler R11, optical signals are inputted/outputted thereto/therefrom through a first 1×2…
US 6021237 All-fiber acousto-optic tunable filter
This invention relates to an all-fiber acousto-optic tunable wavelength filter which is useful in optical communications or optical fiber sensor systems. The present invention provides an all-fiber acousto-optic tunable filter, comprising: a length of optical fiber for propagating optical waves; a first mode converting means for selectively…
The present invention relates to a passive optical network, which inexpensively improves the spectral efficiency of an access network and is capable of increasing the number of subscribers per channel by using WDM in combination with Time Division Multiplexing (TDM) or SubCarrier Multiple Access (SCMA) to expand a conventional WDM passive optical…
US 7936994 Broadband light source using fabry perot laser diodes
Disclosed is a broadband light source (BLS) necessary to implement wavelength-locked Fabry-Perot (FP) laser diodes (LDs) applicable to an optical subscriber network The BLS is based on a method using mutual injection of low-cost FP LDs and a method using FP LDs undergoing chirping. A power level of a light emitting diodes (LED), an erbium-doped…
US 7949185 Method of performing robust auto white balance
Disclosed herein is a method of performing robust white balance. The method includes a first process of dividing an input image into blocks, a second process of selecting blocks having higher color errors, and calculating average RGB values of the selected blocks, a third process of selecting a specific top percentage of bright blocks, and…
US 7952602 Wide field diode-laser marker with swinging projection-optics
Apparatus for laser-marking on tape includes a laser arranged to emit a modulated beam of laser-radiation. Projection-optics are arranged to focus a beam to a spot on the tape. The tape is driven under the focal spot for scanning the beam in the length direction of the tape. The projection-optics are rotated reciprocally to scan the focal spot…
US 6735391 Error correction and signal recovery in optical communications
The present invention relates to an automatic retrieval method of a wavelength-division multiplexed (WDM) ring network to the normal state after recovery of a failure. More specifically, the present invention relates to an automatic retrieval method of a WDM ring network to the normal state after recovery of a failure by inducing a lasing by…
US 6775050 Precision micromirror actuators for optical communications
Disclosed is a micromirror actuator that includes: a substrate provided with an insulating layer formed thereon; two lower columns spaced from each other by a designated distance, and formed on the insulating layer; a first torsion bar extending over upper surfaces of the lower columns; a second torsion bar formed so that the first and second…
US 6727988 Spectrophotometer (light) meters with exposure control
A spectrophotometer and spectrophotometry method, using a precision drive at a photodiode array which precisely moves the photodiode array by a distance equal to the physical interval between the photodiodes of the photodiode array so that the spectrophotometer and spectrophotometry method primarily measures light intensities of incident light by…
US 6775058 Optical signal amplifiers
The present invention discloses a wide band optical amplifier with a common mid-stage device. In the wide band optical amplifier according to the present invention, the signals that enter the amplifier are first split into a couple of sub-band signals. The sub-band signals are amplified independently at different optical amplification sections,…
US 8408471 Authorizing the use of a biometric card
Embodiments of the present invention provide a system and method for authorizing the use of a biometric transaction card. Specifically, embodiments of the present invention provide a biometric card having a biometric sensor to determine whether the biometric information (fingerprint) is from human skin. In a typical embodiment, the…
US 8958134 Image array with localized light source
Embodiments of the present invention provide lighting for an image array. Specifically, embodiments of the present invention provide a system and method for providing localized lighting for an image array. In a typical embodiment, a set of pixels being scanned in the image array is identified. A subset of light sources within an array of light…
US 8699762 Multi-sided card having a resistive fingerprint imaging array
Embodiments of the present invention provide an adaptive and intelligent fingerprint scanning device and approach for a multi-sided card. Specifically, embodiments of the present invention utilize DC resistive image scanning to reduce overall scanning time and energy consumption (e.g., by identifying a targeted scanning area). In a typical…
US 6563098 Measurement sensors for high-precision positioning mechanisms
A high-precision displacement measurement device and linear or rotational displacement measurement method using a unit displacement sensor based on a confocal theory. This device is simpler in construction, lower in cost and superior in resolution to other displacement measurement devices, and is capable of measuring a much wider area than other…
US 6021237 All-fiber acousto-optic tunable filter
This invention relates to an all-fiber acousto-optic tunable wavelength filter which is useful in optical communications or optical fiber sensor systems. The present invention provides an all-fiber acousto-optic tunable filter, comprising: a length of optical fiber for propagating optical waves…
US 6034770 Interferometric laser sensor having a linear laser cavity
An interferometer-type laser sensor acts concurrently as a light source and to measure external physical quantities such as rotation, magnetic field, current and fluid velocity. The interferometer-type laser sensor has a laser resonator having a laser gain medium, optical path and two or more reflectors to reflect incident light toward an opposite…
US 6253004 Optical interconnection structure for enlarging alignment tolerance
An optical interconnection structure between an optoelectric device and a single mode optical fiber for enlarging an alignment tolerance is provided. The optical interconnection structure is constituted by a microlensed optoelectric device and a graded index fiber ended single mode optical fiber.
US 6316883 Power-factor correction circuit of electronic ballast for fluorescent lamps
A power-factor correction circuit of an electronic ballast for fluorescent lamps which includes an input full-wave rectification circuit for full-wave rectifying an AC input voltage from an AC input power source, a DC-link capacitor for supplying a DC-link voltage in response to an output voltage from the rectification circuit and a resonant…
US 6246811 Irreversible Optical Device Utilizing Optical Frequency Shift
An irreversible optical device using an optical frequency shift. The invention provides an irreversible phase shifter including frequency shifters. An irreversible interferometer is also provided which includes the irreversible phase shifter. The invention also provides an irreversible interferometer using a twin-mode optical fiber. In addition to…
US 6528993 Magneto-optical Microscope Magnetometer
A magneto-optical microscope magnetometer capable of simultaneously measuring a hysteresis loop and activation magnetic moment of a submicrometer-scale local area (about 0.30.3 m). An electromagnet capable of applying a magnetic field to a magnetic material is attached to a polarizing optical microscope capable of observing a magnetized state of…
US 6548806 Apparatus for Monitoring Frequency of WDM Signals Using Pilot Tone
An apparatus monitoring frequency of WDM signals using pilot tone and two interleaved solid etalon filters for efficient management and maintenance of wavelength division multiplexing optical transmission network is provided. Desirably, the apparatus for optical frequency monitoring includes splitting means, a plurality of optical filtering means,…
US 6866721 Apparatus and Method for Photo-induced Process
Apparatus for a photo-induced process are provided, which implement a transparent film (instead of an optical window), to reduce light absorption loss that would result from use of an optical window. A photo-induced process apparatus eliminates problems of conventional systems which use optical windows, such as blurring an optical window and the…
US 7171123 Method for decreasing and compensating the transmission loss at a wavelength …
The present invention relates to a wavelength-division multiplexed passive optical network. In particular, it relates to a technology for minimizing the optical loss at a wavelength-division multiplexed passive optical network based on wavelength-locked light source Thereby it improves the transmission quality and increases the transmission…
US 7268027 Method of Manufacturing Photoreceiver
Disclosed is a method of manufacturing a photoreceiver, including sequentially laminating a buffer layer, a channel layer, a barrier layer, and a cap layer on a substrate; forming a mesa for HEMT and MSM PD by removing the buffer layer, the channel layer, the barrier layer, and the cap layer with the exception of a region corresponding to HEMT and…
US 7253945 Amplitude Dividing Type Laser Amplification Apparatus
An optical amplification apparatus includes a polarizing beam splitter for reflecting a portion of an incident light and transmitting a remaining portion of the incident light, depending upon a polarized state of the incident light, at least two optical amplification means each including a first polarizing plate which makes polarized states of the…
US 7369771 Optical network terminator and optical network connection method using it
An optical network terminator of the present invention includes an optical wavelength division multiplexer for receiving an optical signal and incoherent light. An optical detection unit converts a downstream high speed and low speed optical signals into electrical signals. A laser diode converts an upstream signal into an optical signal. A high…
US 7106974 Low-cost WDM Source with an Incoherent Light Injected Fabry-Perot Laser Diode
The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoherent light into a Fabry-Perot laser diode (F-P LD). After…
US 6559984 Fiber Optic Network Path Monitoring
The present invention relates to an optical path monitoring device on the basis of the identification of input ports in optical cross-connect systems. An optical path monitoring apparatus in an optical cross-connect system is provided. The optical cross-connect system in accordance with the present invention includes input ports,…
US 6538784 Fiber Optic Network Switches and Routers
This invention relates to a multicast-capable optical cross-connect with layered modularity. Due to its layered modularity, this invention can be applied to many differently structured networks and provides easier maintenance than conventional optical cross-connects and efficient preparation for network evolution or node upgrade. By exploiting its…
US 6396574 Apparatus for measuring the wavelength, optical power and optical signal-to …
An apparatus for measuring the wavelength, optical power, and an optical signal-to-noise ratio (OSNR) of each optical signal in wavelength-division-multiplexing optical communication includes: elements for splitting a part of wavelength-division-multiplexed (WDM) signals, elements for amplifying the WDM signals and generating spontaneous emission…
US 6188509 Simple bidirectional add/drop amplifier module based on a single multiplexer
This invention is to construct a bidirectional WDM add/drop amplifier module for transmitting WDMS in bidirection and for adding/dropping a signal in bidirection at each node in a WDM network system using a single N.times.N multiplexer. The bidirectional WDM add/drop amplifier module comprises an 8.times.8 arrayed-waveguide grating. The 8.times.8…
US 5790584 Highly repetitive laser employing a rotating wedge
The present invention relates to a highly repetitive laser employing a rotating wedge, and more specifically, a laser employing a rotating wedge which can provide a laser beam having a uniform spatial intensity profile with a high repetition rate. The highly repetitive laser of the invention is characterized by positioning a rotating wedge between…
US 5832020 Solid-state laser forming highly-repetitive, high-energy and high-power laser beam
The present invention relates to a solid-state laser which forms a high-energy and high-power laser beam with a high repetition rate and whose overall system can be optically aligned in a simple manner. The solid-state laser of the invention can be fabricated by means of reflecting the laser beam which is reflected by a phase conjugation…
This invention is to provide a phase stabilization device for stimulated brillouin scattering-phase conjugate mirrors and a light amplification apparatus using the phase stabilization device. A light amplification apparatus of the present invention includes a polarizer for polarizing light beams reflected from a plurality of stimulated brillouin…
The present invention relates to an optical modulation method and optical modulation system of a wavelength locked Fabry Perot-Laser Diode (FP-LD) by injecting a broadband light source (BLS) using mutual injection of FP-LDs. More specifically, the present invention relates to a novel modulation technology which embodies a wavelength locked FP-LD…
US 8116628 Wavelength-division multiplexed passive optical network for embodying …
The present invention relates to a wavelength-division multiplexed passive optical network (WDM-PON) which embodies wavelength-independence of wavelength-locked Fabry Perot-Laser Diode (F-P LD). A WDM-PON of the present invention comprises an optical fiber being used for optical transmission to and from a broadband light source (BLS) with a low…
US 8018582 Simultaneous Detection Apparatus of Raman and Light Scattering
Provided is a detection apparatus of Raman scattering and light scattering, and more particularly, a simultaneous detection apparatus of Raman scattering and dynamic light scattering and a detection method using the same. The simultaneous detection apparatus of Raman scattering and light scattering includes: a detection unit for applying incident…
US 6661829 Vertical Cavity Surface Emitting Laser
Provided is a vertical cavity surface emitting laser (VCSEL) including a feedback member which feeds a portion of light externally emitted from a resonator for generating and amplifying a laser beam, back into the resonator by reflecting the same and acts as a concave mirror for the resonator. The VCSEL operates predominantly in the single…
A flat light source structure includes an upper substrate made of a light transmitting material; a lower substrate separated from the upper substrate by a distance; a barrier rib for maintaining the distance, thereby defining a discharge space filled with a discharge gas; a phosphor coated on at least one of the inner surfaces of the upper…
US 7359598 Surface plasmon optic devices and radiating surface plasmon sources for photolithography
Disclosed is a surface plasmon optic device that has a periodic array of apertures in a dielectric substrate and a metal film formed on the dielectric substrate and emits light from metal-air interface. The surface plasmon optic device includes a surface plasmon generating apparatus, a surface plasmon detecting apparatus, a surface plasmon…
US App 20140212682 Metallic Microstructure and Processing Method thereof
A method for processing metallic structure which melts an re-coagulates a dross repeatedly by laser processing…
US App 20140016207 Optical Film with an Array of Partial Coating Structure and Preparation thereof
Optical film with an array of structures on which a material having different refractive index, absorbancy or reflectivity from that of a surface of the structures is partially coated.
US 7592865 Power amplifier using power combiner
Disclosed herein is a power amplifier using a power combiner, which is capable of minimizing power loss and improving efficiency of the power amplifier with a large output power, by combining powers generated by a plurality of power amplifiers used in a wireless communication system using a transmission line transformer.
The present invention relates to a SiP having reduced influence between a conductor and an antenna, and a method of designing the SiP. The SiP includes an antenna configured to function to transmit or receive data and mounted in the SiP to be integrated in the SiP, and a first planar conductor having at least one slit formed therein.
US 7729562 Method of detecting alignment error of lenses and compensating for image
A method of detecting the alignment error of lenses and reducing image distortion attributable to the alignment error in a lens-type 3-dimensional liquid crystal display monitor. A method of detecting the alignment error of lenses in a 3D display using a purpose-built test pattern image, which predicts the alignment error in such a way as to…
A communication recovering system for a wavelength division multiplexed passive optical network (WDM PON) includes a central office and remote nodes. When there is a fault in an optical fiber connecting a first blue/red band coupler to a blue/red band coupler R11, optical signals are inputted/outputted thereto/therefrom through a first 1×2…
US 6021237 All-fiber acousto-optic tunable filter
This invention relates to an all-fiber acousto-optic tunable wavelength filter which is useful in optical communications or optical fiber sensor systems. The present invention provides an all-fiber acousto-optic tunable filter, comprising: a length of optical fiber for propagating optical waves; a first mode converting means for selectively…
The present invention relates to a passive optical network, which inexpensively improves the spectral efficiency of an access network and is capable of increasing the number of subscribers per channel by using WDM in combination with Time Division Multiplexing (TDM) or SubCarrier Multiple Access (SCMA) to expand a conventional WDM passive optical…
US 7868548 Plasma display panel and low temperature fabrication method thereof
Disclosed is a plasma display panel fabricated by low temperature process at not more than 300° C. More particularly, the present invention provides a plasma display panel comprising at least one of a dielectric layer in an upper plate, another dielectric layer and barrier ribs in a lower plate, and a sealing material for the upper and lower…
US 7949185 Method of performing robust auto white balance
Disclosed herein is a method of performing robust white balance. The method includes a first process of dividing an input image into blocks, a second process of selecting blocks having higher color errors, and calculating average RGB values of the selected blocks, a third process of selecting a specific top percentage of bright blocks, and…
US 7952602 Wide field diode-laser marker with swinging projection-optics
Apparatus for laser-marking on tape includes a laser arranged to emit a modulated beam of laser-radiation. Projection-optics are arranged to focus a beam to a spot on the tape. The tape is driven under the focal spot for scanning the beam in the length direction of the tape. The projection-optics are rotated reciprocally to scan the focal spot…
US 6895185 Fiber optic networks
The present invention relates to an optical fiber access network, and more particularly, to a multi-purpose optical fiber access network capable of accepting all services provided by hybrid wireline/wireless access network.
US 6735391 Error correction and signal recovery in optical communications
The present invention relates to an automatic retrieval method of a wavelength-division multiplexed (WDM) ring network to the normal state after recovery of a failure. More specifically, the present invention relates to an automatic retrieval method of a WDM ring network to the normal state after recovery of a failure by inducing a lasing by…
US 6727988 Spectrophotometer (light) meters with exposure control
A spectrophotometer and spectrophotometry method, using a precision drive at a photodiode array which precisely moves the photodiode array by a distance equal to the physical interval between the photodiodes of the photodiode array so that the spectrophotometer and spectrophotometry method primarily measures light intensities of incident light by…
US 6775058 Optical signal amplifiers
The present invention discloses a wide band optical amplifier with a common mid-stage device. In the wide band optical amplifier according to the present invention, the signals that enter the amplifier are first split into a couple of sub-band signals. The sub-band signals are amplified independently at different optical amplification sections,…
US 6661256 Digital Circuit Design
A race logic circuit of the present invention includes: a WTA circuit for receiving an operand logic signal and outputting only a high signal which is the first to arrive among the operand logic signals; plural race lines for inputting the operand logic signal into the WTA circuit; a clock distribution line having plural delay devices connected in…
US 8847736 Imaging-based radio-frequency identification transponder
The present invention relates to an imaging-based radio-frequency identification (RFID) transponder. Specifically, the transponder includes a photo-responsive cell for capturing an image; and an analysis component. The photo-responsive cell captures images of objects. Once captured, the analysis component is configured to: determine whether the…
US 8810373 Active energy harvesting for radio-frequency identification devices
In general, embodiments of the present invention provide approaches for providing power to RFID transponders. In one embodiment, the RFID transponder is powered using a magnetic field generated by power lines. In another embodiment, the RFID transponder is powered using a field generated by a wireless network. In the case of the latter, the RFID…
US 8952790 Strong passive ad-hoc radio-frequency identification
Embodiments of the present invention provide a strong passive ad-hoc radio-frequency identification (RFID) network (the “network). The network typically includes an RFID receiver and N quantity of RFID tags coupled to one another. For example, a network under the present invention can include an RFID reader; a first RFID tag in communication…
US App 20120286930 Automated card information exchange pursuant to a commercial transaction
In general, embodiments of the present invention relate to a card and associated methods for automated information (static and dynamic) exchange pursuant to a commercial transaction. In a typical embodiment, the card (e.g., a credit card, a debit card and/or a smart card) comprises an energy component for providing power to the card and a back…
US App 20120280828 RFID-based electricity metering system
Embodiments of the present invention provide a radio frequency identification (RFID) based electricity metering system enabled to meter energy consumption of individual devices. Specifically, embodiments of this invention provide a set (a least one) of RFID sensor units, each RFID sensor unit comprising: an inductor affixed to the power line of an…
US App 20120275669 Adaptive Fingerprint scanning
Embodiments of the present invention provide an adaptive and intelligent fingerprint scanning device and approach. Specifically, embodiments of the present invention utilize DC resistive image scanning to reduce overall scanning time and energy consumption (e.g., by identifying a targeted scanning area). In a typical embodiment, a scanning device…
US 8408471 Authorizing the use of a biometric card
Embodiments of the present invention provide a system and method for authorizing the use of a biometric transaction card. Specifically, embodiments of the present invention provide a biometric card having a biometric sensor to determine whether the biometric information (fingerprint) is from human skin. In a typical embodiment, the…
US 8699762 Multi-sided card having a resistive fingerprint imaging array
Embodiments of the present invention provide an adaptive and intelligent fingerprint scanning device and approach for a multi-sided card. Specifically, embodiments of the present invention utilize DC resistive image scanning to reduce overall scanning time and energy consumption (e.g., by identifying a targeted scanning area). In a typical…
US 6563098 Measurement sensors for high-precision positioning mechanisms
A high-precision displacement measurement device and linear or rotational displacement measurement method using a unit displacement sensor based on a confocal theory. This device is simpler in construction, lower in cost and superior in resolution to other displacement measurement devices, and is capable of measuring a much wider area than other…
US 6316883 Power-factor correction circuit of electronic ballast for fluorescent lamps
A power-factor correction circuit of an electronic ballast for fluorescent lamps which includes an input full-wave rectification circuit for full-wave rectifying an AC input voltage from an AC input power source, a DC-link capacitor for supplying a DC-link voltage in response to an output voltage from the rectification circuit and a resonant…
US 6437360 Vacuum Field Transistor
Disclosed are flat/vertical type vacuum field transistor (VFT) structures, which adopt a MOSFET-like flat or vertical structure so as to increase the degree of integration and can be operated at low operation voltages at high speeds. The flat type comprises a source and a drain, made of conductors, which stand at a predetermined distance apart on…
US 6423241 Ink Jet Print Head and a Method of Producing the same
Disclosed is an ink jet print head and a method of producing the same, the ink jet print head including a plurality of ink ejecting orifices which are formed with a desired shape and a uniform size by only once using metal plating technique, having an excellent productivity and a low manufacturing cost…
US 6411327 Stereo camera system for obtaining a stereo image of an object, and system
A stereo camera system for obtaining a stereo image of an object to measure distance between the stereo camera system and the object is provided. The stereo camera system 10 comprises a camera and a prism arranged at a desirable distance from the front side of the lens of said camera. The prism may be a delta shaped biprism having a base, a first…
US 6384507 Coreless AC Induction Motor
Disclosed herein is a coreless AC Induction motor. The motor comprises a cup type coreless rotor. A rotating shaft is combined with the cup type coreless rotor. An induction rod is inserted into the cup type coreless rotor to guide a magnetic flux from the stator effectively. A stator is positioned around the coreless rotor.
US 6440288 Method for preparing anode electrode for high voltage electrolytic capacitor
Disclosed is a method for forming an aluminum oxide film of a large surface area on an electrode for a high voltage electrolytic capacitor. In accordance with the method, an oxide film of a uniform thickness is formed, prior to a process of etching the oxide film. A re-anodization is then partially conducted for an etched portion of the oxide…
US 6462614 Electrothermal Integrator and Audio Frequency Filter
An electrothermal integrator and audio frequency filter utilizing an electrothermal structure fabricated by way of a micro-machining process. An electrothermal structure is a structure in which there is thermal interaction between its electrical components.
US 6528993 Magneto-optical Microscope Magnetometer
A magneto-optical microscope magnetometer capable of simultaneously measuring a hysteresis loop and activation magnetic moment of a submicrometer-scale local area (about 0.30.3 m). An electromagnet capable of applying a magnetic field to a magnetic material is attached to a polarizing optical microscope capable of observing a magnetized state of…
US 6614961 Method of fabricating a fused-type mode-selective directional coupler
A method of fabricating a fused-type directional coupler that can be made in a simple manner. The present invention is characterized in that a pair of optical fibers satisfying a particular phase match condition are previously selected to form a fused-type directional coupler. The two optical fibers are prepared by respectively tapering and…
US 6556085 Low Power Low Noise Amplifier
A low power low noise amplifier achieves a high power gain without increasing power consumption by sharing the bias current. The amplifier is composed of a cascade structure which consists of a parallel connected common source transistor and common gate transistor connected to a common source transistor, an inverter type structure connected to the…
US 6727642 Flat Field Emitter Displays
Disclosed are flat panel field emitter displays whose unit cell structure adopt a planar cathode structure in stead of a conventional microtip structure, so as to increase the degree of integration and can be operated at low operation voltages at high speeds. In the structure, a channel insulator is formed below the cathode and underlaid by a…
US 6781732 Electromagnetically actuated micromirror actuator and fabrication method thereof
Disclosed is a micromirror actuator having a two-axis freedom and actuated by an electromagnetic force and fabrication method thereof. The micromirror actuator includes a substrate, a frame configured to be connected with the substrate, a micromirror configured to be connected with the frame, first and second torsion bars connecting the substrate…
US 6944347 Image Compression and Restoring Method for Binary Images
The present invention relates to the image compression and restoring method for binary images that can be used in binary image equipment including printers.
US 6878435 High Adhesion Triple Layered Anisotropic Conductive Adhesive Film
Disclosed is a triple layered ACA film adapted for enhancing the adhesion strength of a typical single layer Anisotropic Conductive Film or for enhancing the adhesion strength of the ACA film in flip chip bonding. The triple layered ACA film of the invention comprises: a main ACA film based upon epoxy resin and containing conductive particles…
US 7081872 Micromirror device using interdigitated cantilevers and applications thereof
Disclosed are a micromirror device made in a simple structure using interdigitated cantilevers and having two stable rotational states, and applications thereof.
US 7020294 Method for active noise cancellation using independent component analysis
The present invention considers a method for active cancellation using independent component analysis. More particularly, the present invention relates to a method which is operable the independent component analysis technique to an adaptive algorithm that can consider secondary or more higher statistical characteristics.
US 7141783 Apparatus for Focusing Particle Beam using Radiation Pressure
The present invention relates to an apparatus for focusing particle beams using a radiation pressure capable of obtaining the same flow amount and a narrower particle beam width with respect to the particle size and a higher numeral density. It is possible to form the particle beams by applying the radiation pressure to the particles with respect…
The present invention discloses an infrared bolometer including a signal bridge used for reading a resistance value varied by infrared heat and removing residual heat of a heat absorbing layer. The infrared bolometer includes a lower substrate having an integrated circuit coated with a protection layer, an upper substrate having an absorbing layer…
US 7253945 Amplitude Dividing Type Laser Amplification Apparatus
An optical amplification apparatus includes a polarizing beam splitter for reflecting a portion of an incident light and transmitting a remaining portion of the incident light, depending upon a polarized state of the incident light, at least two optical amplification means each including a first polarizing plate which makes polarized states of the…
US 7161441 High Frequency Distributed Oscillator using Coupled Transmission Line
The present invention relates to a distributed oscillator, and more particularly, to a high frequency distributed oscillator using coupled transmission lines. According to the present invention, coupled transmission lines capable of increasing the frequency selectivity are used as transmission lines. Signal interference occurs among the coupled…
US 7420424 Power Amplifier Transmission Line Transformer
Disclosed herein is a power amplifier which is used in a wireless communication system and is capable of improving efficiency in an entire output power range and extending the dynamic range without additional switches, by including a drive amplification unit and a power amplification unit, connecting the drive amplification and the power…
US 7405830 Vibration-insensitive Interferometer
The present invention relates to vibration-insensitive point-diffraction interferometry. For the purpose of obtaining high immunity to vibration, a single-mode optical fiber is used to generate the reference wave, by means of point diffraction, directly from a measurement wave reflected from test objects. The capability of vibration…
US 7319317 Probe Card and Method for Producing the same
A probe card is used in conducting a visual test for a target test object through simultaneous contact of the probe card with each and every electrode pad of the target test object. The probe card includes a plurality of probes composed of conductive wire strands and having elastically deformable contact parts so curved as to make contact with…
US 7479830 Differential Amplifier Using Body-source Cross Coupling
Disclosed herein is a differential amplifier using body-source cross coupling. In a common gate differential amplifier in which common gate amplifiers are implemented in a differential structure, since the bodies of the common gate amplifiers are cross coupled to the sources of the opposite common gate amplifiers, it is possible to increase…
US 7498877 Power Amplifier with Automatic Switching Function
A power amplifier with automatic switching functions is disclosed. The power amplifier can variably control output power of circuits as all of the circuits are operated when relatively large power is needed, and the circuits are partially turned off when relatively small power is needed, according to magnitude of an envelope signal, such that the…
US 7548134 Transmission Line Transformer
A transmission line transformer is disclosed. The transformer improves efficiency and a dynamic range of a power amplifier. The transformer is formed to have a plurality of load impedances as the primary side of the transmission line transformer is separated to form a plurality of primary transmission lines with parasitic components which are…
US 7554401 Power Amplifier using Power Combiner
Disclosed herein is a power amplifier using a power combiner, which is capable of minimizing power loss and improving efficiency of the power amplifier with a large output power, by combining powers generated by a plurality of power amplifiers used in a wireless communication system using a transmission line transformer.
US 7737828 Tactile Feedback Device
The present invention discloses a tactile feedback device for giving realistic touch sensation to the user by stimulating the skin of the user. The tactile feedback device of the present invention comprises a housing having one end positioned near the skin of the user in use, an actuator, touch pins and an elastic means. The actuator is mounted…
US 7656347 Quadrature Radar Apparatus
A quadrature radar apparatus includes a quadrature signal generating unit, a plurality of coupler modules connected to the signal generating unit, an antenna unit receiving transmission signals from the coupler modules and a reception signal reflected from a target, one or more phase delay modules connected between one or more of the coupler…
US 7710200 Output Buffer and Power Amplifier Comprising thereof
The present invention relates an output buffer and a power amplifier having the same. The output buffer includes a push-pull circuit unit, an output unit, and a driver. The push-pull circuit unit includes transistors connected to each others in a push-pull formation between a high level power voltage and a low level power voltage. The output unit…
US 7830337 Method and Apparatus for Driving AC Plasma Display Panel with Four Electrodes
The present invention provides a driving method of a plasma display panel with ADS method comprising a reset period including an erase period, a rising period and a falling period, an address period and a sustain period, in which an auxiliary electrode is inserted between a scan electrode and a sustain electrode which are disposed in parallel on a…
US 7895188 Processing Method of Data Stream using Border Monitoring Query
The present invention relates to a processing method of data stream using Border Monitoring Query, and more particularly a monitoring method and a system for data streams which are a large volume of data and continuously generated such as financial ticker, GPS data or a ubiquitous sensor network (USN).
US 6501336 Self-calibration device and method for calibrating phase offset between …
Disclosed is a self-calibration device for calibrating a phase difference between output waveforms of a ring oscillator, comprising: a voltage-controlled oscillator adapted to adjust the transition time of an output signal according to an inputting of a control voltage for controlling the phase offset and generate the adjusted output signal; a…
US 6477912 Six-degrees-of-freedom parallel mechanism for micro-positioning work
A six-degrees-of-freedom parallel mechanism for micro-positioning work is disclosed. This mechanism freely performs a desired motion of translation and rotation of a moving platform using internal and external links actuated by linear actuators capable of precisely controlling the link positions, thus being effectively used as a 6dof parallel…
US 5790584 Highly repetitive laser employing a rotating wedge
The present invention relates to a highly repetitive laser employing a rotating wedge, and more specifically, a laser employing a rotating wedge which can provide a laser beam having a uniform spatial intensity profile with a high repetition rate. The highly repetitive laser of the invention is characterized by positioning a rotating wedge between…
US 7929963 Cognitive radio based air interface method in wireless communication system
A cognitive radio-based wireless communication system and an air interface method in a physical layer and a data link layer, which constitute a cognitive radio-based next-generation wireless communication system. The air interface method for wireless communication in the cognitive radio-based wireless communication system of the present invention…
A multi-phase ultra-wideband signal generator uses differential pulse oscillators. The multi-phase ultra-wideband signal generator using differential pulse oscillators includes N pulse oscillators for generating pulse signals based on a supply of power, and further comprises N inverting amplification units for outputting inverted amplified signals…
In a method of manufacturing a flexible display substrate having reduced moisture permeability and reduced oxygen permeability, nanosized or microsized particles are uniformly dispersed in a molten polymer matrix. The molten polymer matrix are formed into plate-shaped molten polymer. The plate-shaped molten polymer is extruded between two…
US 8009350 Laptop-size high-order harmonic generation apparatus using near field Enhancement
Disclosed herein is a laptop-size high-order harmonic generation apparatus using near field enhancement. The laptop-size high-order harmonic generation apparatus using near field enhancement includes a femtosecond laser generator, light transfer means for transferring light output from the femtosecond laser generator, micro patterns formed of…
This invention is to provide a phase stabilization device for stimulated brillouin scattering-phase conjugate mirrors and a light amplification apparatus using the phase stabilization device. A light amplification apparatus of the present invention includes a polarizer for polarizing light beams reflected from a plurality of stimulated brillouin…
US 7876292 Active matrix OLED driving circuit using current feedback
An active matrix organic light emitting diode AMOLED driving circuit using current feedback that ensures the uniformity of brightness in pixels of a flat panel display and shortens the time required to input accurate current to respective pixels in the driving circuit.
The present invention relates to an OPCPA apparatus. The OPCPA of the present invention includes an optical pulse stretcher for outputting chirped laser light using odd-order dispersion (third-order dispersion is mainly used). A pump laser outputs pump laser light. An OPA unit receives the pump laser light and the chirped laser light (signal),…
US 8094922 Crack Measuring Method and Apparatus
Disclosed are a crack measuring method that may automatically measure crack growth in a surface of a structure rapidly and exactly without influencing the structure using image processing scheme, and an apparatus thereof. The crack measuring method includes: irradiating light to a surface of a structure; converting reflected light, wherein the…
An apparatus for generating and measuring bending vibration in a pipe buried underground or a pipe covered by insulating materials is disclosed. There is provided an apparatus for generating and measuring bending vibration in a non-ferromagnetic pipe without physical contact, comprising: a ferromagnetic strip adhered on a surface of the pipe; a…
A magnetostrictive transducer generating a torsional wave in a subject having a predetermined section and measuring a torsional wave propagating in the subject. In the magnetostrictive transducer having a ferromagnetic patch attached to a predetermined position of a subject, a cylindrical insulator installed around the periphery of the…
US 7302762 Plate Type Capacitive Sensor for Five-dimensional Displacement Measurement
Disclosed herein is a plate type capacitive sensor for five-dimensional displacement measurement that is capable of simultaneously measuring five-dimensional movement of an object, which includes the horizontal movement, the vertical movement, and the tilt of the object. The plate type capacitive sensor for five-dimensional displacement…
A method and apparatus for generating and measuring a torsional wave in a rod, shaft or pipe using magnetostriction are provided. The magnetostrictive transducer includes at least one strip attached to a predetermined position of a rod member, an insulator disposed around the strip, a coil wound around the insulator, and magnets providing a bias…
US 7526047 Method for encoding a message into geometrically uniform space-time trellis codes
A method for coding messages by group codes over label alphabet and H-symmetric labeling is provided in order to encode geometrically uniform space-time trellis codes considering a distance spectrum. The coding method makes the complexity of code searching reduced considerably by limiting the object of the code design to geometrically uniform…
Provided is an electromagnetic acoustic transducer including a main body formed of a non-metal material and having a hollow portion, a magnetic field generation portion generating two magnetic fields parallel to a lengthwise direction of the rod member and in opposite directions to each other, at both sides of the rod member that is inserted in…
US 7929414 Modified SLM scheme with low complexity for PAPR reduction of OFDM systems
Provided are an apparatus and method for reducing a PAPR with less computation complexity without distortion using a selected mapping scheme (SLM) in an OFDM system. The method includes: generating a plurality of OFDM signal sequences by performing an inverse fast Fourier transform (IFFT) operation on input symbol sequences, which are…
US 7719161 Method of Designing Rotary Thermal Actuator and Rotary Thermal Actuator
Provided are a method of designing a rotary thermal actuator and a rotary thermal actuator. The method includes setting the shape of an entire design domain; dividing the entire design domain into a predetermined number of domains which are symmetrical to one another in a rotational direction from the center of the entire design domain; designing…
US 8050445 Microspeaker and Method of Designing the same
Provided are a microspeaker and a method of designing the same. The microspeaker includes a first permanent magnet and a second permanent magnet disposed on the first permanent magnet with a predetermined gap therebetween, the first and second permanent magnets having opposite magnetization directions; a third permanent magnet and a fourth…
Provided are a dielectric film, a method of manufacturing the same, and a semiconductor capacitor having the dielectric film. The semiconductor capacitor includes a lower electrode, a ferroelectric layer disposed on the lower electrode, a paraelectric layer disposed on the ferroelectric layer, and an upper electrode disposed on the paraelectric…
US 6538627 Energy Recovery Driver Circuit for AC Plasma Display Panel
The present invention provides an energy recovery driver circuit for the AC plasma display panel having an enhanced energy recovery efficiency with a short voltage rise and fall period. The energy recovery driver circuit comprises an energy recovery part interposed between the sustain driver circuits for the X1 and X2 electrodes and the other…
PCT KR2011-003008 Nanofluidic Fluorescence Apertureless Near-field Scanning Optical Microscope
A fluorescence apertureless near-field scanning optical microscope which is capable of focusing outputs of fluorescence signals to a specific direction…
US App 20140016207 Optical Film with an Array of Partial Coating Structure and Preparation thereof
Optical film with an array of structures on which a material having different refractive index, absorbancy or reflectivity from that of a surface of the structures is partially coated.
PCT KR2009-002941 Micro Calorimeter Device with Improved Accuracy
A micro calorimeter device with improved accuracy having a new design based on a silicon nitride thin platform implemented with a Nano Electro-Mechanical System(NEMS) processing technology.
A method for transmitting and receiving signal through avoiding same and different kind of interference signals in a same band of FHSS system, improves performance of wireless communication system, i.e., bluetooth.
US App 20130187127 Light-Emitting Element and Method for Manufacturing Same
A light-emitting element, which is formed using a fine structure grown toward the upper side of a graphene, wherein a thin film layer is formed between the fine structure and the light-emitting el
US 8596549 B2 Authorizing the use of a transaction card
Embodiments of the present invention provide systems and methods for validating a user of a transaction card. Specifically, embodiments of the present invention utilize dynamic manipulation of a transaction card to authorize use of the card. In a typical embodiment, the cardholder approaches a magnetic reader with the card. The card is powered up…
US 8504778 Multi-core active memory processor system
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 8589628 Hybrid active memory processor system
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 8621151 Active memory processor system
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 8680523 Sensor for semiconductor degradation monitoring and modeling
Embodiments of the present invention provide a semiconductor sensor reliability system and method. Specifically, the present invention provides in-situ positioning of a reliability sensor (hereinafter sensors) within each functional block, as well as at critical locations, of a semiconductor system. The quantity and location of the sensors are…
US 8935143 Semiconductor Sensor Reliability
Embodiments of the present invention provide a semiconductor sensor reliability system and method. Specifically, the present invention provides in-situ positioning of a reliability sensor (hereinafter sensors) within each functional block, as well as at critical locations, of a semiconductor system. The quantity and location of the sensors are…
US 6661256 Digital Circuit Design
A race logic circuit of the present invention includes: a WTA circuit for receiving an operand logic signal and outputting only a high signal which is the first to arrive among the operand logic signals; plural race lines for inputting the operand logic signal into the WTA circuit; a clock distribution line having plural delay devices connected in…
US 7750748 Method and Apparatus for Distributing Clock Signal using Standing Waves
A Method and an apparatus for distributing a clock signal are disclosed. The apparatus for distributing a clock signal includes a pair of flat plates, a variable inductor and a connection channel. The pair of flat plates includes a clock flat plate having at least one of clock signal extraction points and a reference flat plate arranged in…
US 7929414 Modified SLM scheme with low complexity for PAPR reduction of OFDM systems
Provided are an apparatus and method for reducing a PAPR with less computation complexity without distortion using a selected mapping scheme (SLM) in an OFDM system. The method includes: generating a plurality of OFDM signal sequences by performing an inverse fast Fourier transform (IFFT) operation on input symbol sequences, which are…
Disclosed is a method for producing a transparent and homogenized polymeric sol of a calcium phosphate compound, containing apatite and having excellent wettability and bioactivity, according to a sol-gel synthesis, and a method for coating the polymeric sol on a metal implant, in which the polymeric sol is coated on the metal implant and then…
A winding-type synchronous machine including winding-type synchronous motor or generator having mover built in inverter circuit. According to the present invention, problem about use of rare-earth permanent magnet can be solved, and the winding-type synchronous machine which not cause pulsation problem can be implemented.
Processing instructions by processing element which can proceed a branch statement with high speed, in the processing element constituting CGRA or SIMD by DISE method.
US 8704601 Class E Power Amplifier
A class E power amplifier which reduces voltage stress applied to a CMOS transistor, forms a higher load impedance and minimizes interference to other circuits in operation.
PCT KR2011-000765 Bottom-up Processing of a Structure Using an Adhesion System Having Fine Ciliary
A method and apparatus for bottom-up processing of a structure using an adhesion system having fine ciliary, which enable the structure to be significantly conveniently attached/detached, and which support the structure in a stable and firm manner.
US 8200942 Hybrid multifunction component system with component interface encapsulation
This invention describes an apparatus, architecture, method, operating system, data network, and application program products for a hybrid digital system with multiple heterogeneous components. This invention is applied to a multiple generic microprocessor architecture s with a set (e.g., one or more cores) of controlling components and a set of…
US 8231054 Time-varying barcodes for information exchange
Embodiments of the present invention provide time-varying barcodes for information exchange. Specifically, embodiments of the present invention provide a system and method for communicating information between electronic devices via a time-varying barcode image sequence. In a typical embodiment, information to be transmitted is divided into…
This invention describes an apparatus, architecture, method, operating system, data network, and application program products for a hybrid digital system with multiple heterogeneous components. This invention is applied to a multiple generic microprocessor architecture s with a set (e.g., one or more cores) of controlling components and a se
US App 20120286930 Automated card information exchange pursuant to a commercial transaction
In general, embodiments of the present invention relate to a card and associated methods for automated information (static and dynamic) exchange pursuant to a commercial transaction. In a typical embodiment, the card (e.g., a credit card, a debit card and/or a smart card) comprises an energy component for providing power to the card and a back…
US 8958134 Image array with localized light source
Embodiments of the present invention provide lighting for an image array. Specifically, embodiments of the present invention provide a system and method for providing localized lighting for an image array. In a typical embodiment, a set of pixels being scanned in the image array is identified. A subset of light sources within an array of light…
US 8675928 Multiple charge-coupled biometric sensor array
Embodiments of the present invention relate to fingerprint scanning. Specifically, the present invention relates to a multi-sided fingerprint scanning device on a card (e.g., credit card, smart card, etc.), an associated energy-efficient method for attaining accurate fingerprint information using a multiple charge-coupled biometric sensor array.…
US 8699762 Multi-sided card having a resistive fingerprint imaging array
Embodiments of the present invention provide an adaptive and intelligent fingerprint scanning device and approach for a multi-sided card. Specifically, embodiments of the present invention utilize DC resistive image scanning to reduce overall scanning time and energy consumption (e.g., by identifying a targeted scanning area). In a typical…
US App 20120275669 Adaptive Fingerprint Scanning
Embodiments of the present invention provide an adaptive and intelligent fingerprint scanning device and approach. Specifically, embodiments of the present invention utilize DC resistive image scanning to reduce overall scanning time and energy consumption (e.g., by identifying a targeted scanning area). In a typical embodiment, a scanning device…
US 8596549 Authorizing the use of a transaction card
Embodiments of the present invention provide systems and methods for validating a user of a transaction card. Specifically, embodiments of the present invention utilize dynamic manipulation of a transaction card to authorize use of the card. In a typical embodiment, the cardholder approaches a magnetic reader with the card. The card is powered up…
US 8490872, (CON) US App 20140158761 Light-powered smart card for on-line transaction processing
In general, embodiments of the present invention relate to a light-powered smart card and associated methods for automated information (static and dynamic) exchange pursuant to a commercial transaction. In a typical embodiment, the card (e.g., a credit card, a debit card and/or a smart card) comprises (among other things) an energy component for…
US 8408471, (CON) US 8820647, (CON) US App 20150023600 Authorizing the use of a biometric card
Embodiments of the present invention provide a system and method for authorizing the use of a biometric transaction card. Specifically, embodiments of the present invention provide a biometric card having a biometric sensor to determine whether the biometric information (fingerprint) is from human skin. In a typical embodiment, the cardholder…
US 8680523, (CON) US App 20140291678 Sensor for semiconductor degradation monitoring and modeling
Embodiments of the present invention provide a semiconductor sensor reliability system and method. Specifically, the present invention provides in-situ positioning of a reliability sensor (hereinafter sensors) within each functional block, as well as at critical locations, of a semiconductor system. The quantity and location of the sensors are…
US 8935143, (CON) US App 20150112660 Semiconductor Sensor Reliability
Embodiments of the present invention provide a semiconductor sensor reliability system and method. Specifically, the present invention provides in-situ positioning of a reliability sensor (hereinafter sensors) within each functional block, as well as at critical locations, of a semiconductor system. The quantity and location of the sensors are…
US 7605792 Driving method and circuit for automatic voltage output of active matrix
Disclosed herein is a driving method and circuit for the automatic voltage output of an active matrix organic light emitting device, which is capable of resolving the non-uniformity of brightness between pixels.
US 7944130 Multi-cantilever MEMS sensor, manufacturing method thereof, sound source
Disclosed herein is a multi-cantilever MEMS sensor functioning as a mechanical sensor having a plurality of cantilevers, replacing a conventional DSP based sound source localization algorithm and reducing production cost when the MEMES sensor applied to mass-produced robots, a manufacturing method thereof, a sound source localization apparatus…
US 8847736 Imaging-based radio-frequency identification transponder
The present invention relates to an imaging-based radio-frequency identification (RFID) transponder. Specifically, the transponder includes a photo-responsive cell for capturing an image; and an analysis component. The photo-responsive cell captures images of objects. Once captured, the analysis component is configured to: determine whether the…
US 8952790 Strong passive ad-hoc radio-frequency identification
Embodiments of the present invention provide a strong passive ad-hoc radio-frequency identification (RFID) network (the “network). The network typically includes an RFID receiver and N quantity of RFID tags coupled to one another. For example, a network under the present invention can include an RFID reader; a first RFID tag in communication…
US App 20120280828 RFID-based Eelectricity metering system
Embodiments of the present invention provide a radio frequency identification (RFID) based electricity metering system enabled to meter energy consumption of individual devices. Specifically, embodiments of this invention provide a set (a least one) of RFID sensor units, each RFID sensor unit comprising: an inductor affixed to the power line of an…
US 6563098 Measurement sensors for high-precision positioning mechanisms
A high-precision displacement measurement device and linear or rotational displacement measurement method using a unit displacement sensor based on a confocal theory. This device is simpler in construction, lower in cost and superior in resolution to other displacement measurement devices, and is capable of measuring a much wider area than other…
US 6034770 Interferometric laser sensor having a linear laser cavity
An interferometer-type laser sensor acts concurrently as a light source and to measure external physical quantities such as rotation, magnetic field, current and fluid velocity. The interferometer-type laser sensor has a laser resonator having a laser gain medium, optical path and two or more reflectors to reflect incident light toward an opposite…
US 7298875 Capacitance-type Fingerprint Sensor
A capacitance-type fingerprint sensor. The capacitance-type fingerprint sensor includes a plurality of pixel groups, each of which electrically connects a plurality of sensing electrodes to a plurality of coupling electrodes, respectively; a plurality of first sensing-electrode switches for connecting the sensing electrodes to a voltage source; a…
US 7446384 CMOS Image Sensor Module with Wafers
The present invention relates to an image sensor module and a manufacturing method thereof, especially to a wafer level chip size package (WL-CSP) realized by directly contacting an image sensor chip wafer to a glass wafer on which an IR filter coating layer is deposited, an electrode rearrangement and a dicing process, a miniaturized image sensor…
Disclosed is a CMOS image sensor that controls a reset voltage to reduce reset noise caused by a reset operation of the CMOS image sensor, fixed pattern noise caused by different characteristics of detection circuits, and image lag caused by the influence of a previous image signal upon the current output signal, thereby achieving a high signal to…
US 7598903 Sensor for Measuring Distance and Method for Measuring Distance Using the Sensor
A distance measurement sensor and a distance measurement method using the same are disclosed. The distance measurement sensor can use all of a pulse method and a Continuous Wave (CW) method, can select an appropriate measurement method according to the distance to be measured, thereby accurately measuring the distance. The distance measurement…
US 7619674 CMOS Image Sensor with Wide Dynamic Range
The present invention provides a CMOS image sensor for broadening a dynamic range by controlling an integration time for each pixel to thereby obtain a high quality image with a low noise. The CMOS image sensor according to the present invention includes plural pixels, each for storing an integration time of a present frame, and control means for…
US 7571651 Capacitive Pressure Sensor and Method for Fabricating the same
A method for producing a capacitive pressure sensor is comprised steps of: etching front surface and depositing etching stopper on a rear surface of a silicon substrate; depositing an upper electrode on etching stopper; depositing insulating surface on the upper electrode surface; depositing a lower electrode on the insulating surface to form a…
US 8004124 Vibration generation module capable of generating inertial and impact vibrations
Disclosed herein is a vibration generation module capable of generating inertial and impact vibrations. The vibration generation module includes a magnetic force generation unit, an elastic force provision unit, a permanent magnet, a contactor, and an impact transmission panel. The permanent magnet is configured such that when periodic electrical…
US 7964944 System on Package of a Mobile RFID Interrogator
The present invention is to implement a SOP of a mobile RFID interrogator. The substrate has external connection terminal patterns on a first surface of a substrate and circuit wiring patterns on a second surface of the substrate. a high frequency front-end part, a power amplifier IC, an analog-digital signal processing chip and the like are…
US 8081061 Mobile RFID Reader and Method of Eliminating a Transmission Leakage Signal
A mobile radio-frequency identification (RFID) reader includes a high-frequency front-end unit including an antenna, a circulator, an output amplifier, and a signal processor chip. The signal processor chip includes a high-frequency transceiver, a pseudo-leakage signal generator configured to generate a pseudo-leakage signal based on a…
A method and an apparatus for structural diagnosis, which generates torsional waves upon a shaft, beam or pipe having arbitrary cross-sections, such as a circular cross-section, and senses existence or location of the cracks through analyzing reflected waves are disclosed. A magnetostrictive transducer comprises a plurality of ferromagnetic strips…
A magnetostrictive transducer generating a torsional wave in a subject having a predetermined section and measuring a torsional wave propagating in the subject. In the magnetostrictive transducer having a ferromagnetic patch attached to a predetermined position of a subject, a cylindrical insulator installed around the periphery of the…
US 7302762 Plate Type Capacitive Sensor for Five-dimensional Displacement Measurement
Disclosed herein is a plate type capacitive sensor for five-dimensional displacement measurement that is capable of simultaneously measuring five-dimensional movement of an object, which includes the horizontal movement, the vertical movement, and the tilt of the object. The plate type capacitive sensor for five-dimensional displacement…
US 8704601 Class E Power Amplifier
A class E power amplifier which reduces voltage stress applied to a CMOS transistor, forms a higher load impedance and minimizes interference to other circuits in operation.
PCT KR2010-003516 Dynamic Bias Current-Starved Inverter and Low-Power
Dynamic bias current-starved inverter (DSINV) circuit which secures a broad bandwidth on dynamic operating mode, minimizes power waste and output error, and achieve a high gain by the circuit provided in the invention.
US App 20130187127 Light-Emitting Element and Method for Manufacturing Same
A light-emitting element, which is formed using a fine structure grown toward the upper side of a graphene, wherein a thin film layer is formed between the fine structure and the light-emitting element.
US 8916850 Light-Emitting Element and Method for Manufacturing Same
A light-emitting element, which is formed using a fine structure grown toward the upper side of a graphene…
US 8810373 Active energy harvesting for radio-frequency identification devices
In general, embodiments of the present invention provide approaches for providing power to RFID transponders. In one embodiment, the RFID transponder is powered using a magnetic field generated by power lines. In another embodiment, the RFID transponder is powered using a field generated by a wireless network. In the case of the latter, the
US 8699762, (CON) US APP 20140294260 Multi-sided card having a resistive fingerprint imaging array
Embodiments of the present invention provide an adaptive and intelligent fingerprint scanning device and approach for a multi-sided card. Specifically, embodiments of the present invention utilize DC resistive image scanning to reduce overall scanning time and energy consumption (e.g., by identifying a targeted scanning area). In a typical…
US 8504778, (CON) US 8656114 Multi-core active memory processor system
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 8589628, (CON) US App 20140075119 Hybrid active memory processor system
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 8621151, (CON) 8874847, US App 20150046660 Active memory processor system
In general, the present invention relates to data cache processing. Specifically, the present invention relates to a system that provides reconfigurable dynamic cache which varies the operation strategy of cache memory based on the demand from the applications originating from different external general processor cores, along with functions of a…
US 8680523, (CON) US App 20140291678 Sensor for semiconductor degradation monitoring and modeling
Embodiments of the present invention provide a semiconductor sensor reliability system and method. Specifically, the present invention provides in-situ positioning of a reliability sensor (hereinafter sensors) within each functional block, as well as at critical locations, of a semiconductor system. The quantity and location of the sensors are…
US 7605792 Driving method and circuit for automatic voltage output of active matrix
Disclosed herein is a driving method and circuit for the automatic voltage output of an active matrix organic light emitting device, which is capable of resolving the non-uniformity of brightness between pixels.
The present invention relates to a SiP having reduced influence between a conductor and an antenna, and a method of designing the SiP. The SiP includes an antenna configured to function to transmit or receive data and mounted in the SiP to be integrated in the SiP, and a first planar conductor having at least one slit formed therein.
US 7949185 Method of performing robust auto white balance
Disclosed herein is a method of performing robust white balance. The method includes a first process of dividing an input image into blocks, a second process of selecting blocks having higher color errors, and calculating average RGB values of the selected blocks, a third process of selecting a specific top percentage of bright blocks, and…
US 8054807 Handover method for mobile WiMAX network based on human mobility behavior
A Handover method in a mobile WiMAX network includes sending a list of target BSs for possible HO acquired by an MSS to a serving BS; providing, at the serving BS, a HO request to the target BSs in the list along with an unique identifier identifying the MSS to collect association responses from the target BSs; providing, at the serving BS, the…
US 7952602 Wide field diode-laser marker with swinging projection-optics
Apparatus for laser-marking on tape includes a laser arranged to emit a modulated beam of laser-radiation. Projection-optics are arranged to focus a beam to a spot on the tape. The tape is driven under the focal spot for scanning the beam in the length direction of the tape. The projection-optics are rotated reciprocally to scan the focal spot…
US 6895185 Fiber optic networks
The present invention relates to an optical fiber access network, and more particularly, to a multi-purpose optical fiber access network capable of accepting all services provided by hybrid wireline/wireless access network.
US 6735391 Error correction and signal recovery in optical communications
The present invention relates to an automatic retrieval method of a wavelength-division multiplexed (WDM) ring network to the normal state after recovery of a failure. More specifically, the present invention relates to an automatic retrieval method of a WDM ring network to the normal state after recovery of a failure by inducing a lasing by…
US 6727988 Spectrophotometer (light) meters with exposure control
A spectrophotometer and spectrophotometry method, using a precision drive at a photodiode array which precisely moves the photodiode array by a distance equal to the physical interval between the photodiodes of the photodiode array so that the spectrophotometer and spectrophotometry method primarily measures light intensities of incident light by…
US 8847736 Imaging-based radio-frequency identification transponder
The present invention relates to an imaging-based radio-frequency identification (RFID) transponder. Specifically, the transponder includes a photo-responsive cell for capturing an image; and an analysis component. The photo-responsive cell captures images of objects. Once captured, the analysis component is configured to: determine whether the…
US 8810373 Active energy harvesting for radio-frequency identification devices
In general, embodiments of the present invention provide approaches for providing power to RFID transponders. In one embodiment, the RFID transponder is powered using a magnetic field generated by power lines. In another embodiment, the RFID transponder is powered using a field generated by a wireless network. In the case of the latter, the RFID…
US 8952790 Strong passive ad-hoc radio-frequency identification
Embodiments of the present invention provide a strong passive ad-hoc radio-frequency identification (RFID) network (the “network). The network typically includes an RFID receiver and N quantity of RFID tags coupled to one another. For example, a network under the present invention can include an RFID reader; a first RFID tag in communication…
US App 20120286930 Automated card information exchange pursuant to a commercial transaction
In general, embodiments of the present invention relate to a card and associated methods for automated information (static and dynamic) exchange pursuant to a commercial transaction. In a typical embodiment, the card (e.g., a credit card, a debit card and/or a smart card) comprises an energy component for providing power to the card and a back…
US App 20120280828 RFID-based electricity metering system
Embodiments of the present invention provide a radio frequency identification (RFID) based electricity metering system enabled to meter energy consumption of individual devices. Specifically, embodiments of this invention provide a set (a least one) of RFID sensor units, each RFID sensor unit comprising: an inductor affixed to the power line of an…
US 8408471, (CON) US 8820647, (CON) US App 20150023600 Authorizing the use of a biometric card
Embodiments of the present invention provide a system and method for authorizing the use of a biometric transaction card. Specifically, embodiments of the present invention provide a biometric card having a biometric sensor to determine whether the biometric information (fingerprint) is from human skin. In a typical embodiment, the…
US 8958134 Image array with localized light source
Embodiments of the present invention provide lighting for an image array. Specifically, embodiments of the present invention provide a system and method for providing localized lighting for an image array. In a typical embodiment, a set of pixels being scanned in the image array is identified. A subset of light sources within an array of light…
US 6021237 All-fiber acousto-optic tunable filter
This invention relates to an all-fiber acousto-optic tunable wavelength filter which is useful in optical communications or optical fiber sensor systems. The present invention provides an all-fiber acousto-optic tunable filter, comprising: a length of optical fiber for propagating optical waves …
US 6316883 Power-factor correction circuit of electronic ballast for fluorescent lamps
A power-factor correction circuit of an electronic ballast for fluorescent lamps which includes an input full-wave rectification circuit for full-wave rectifying an AC input voltage from an AC input power source, a DC-link capacitor for supplying a DC-link voltage in response to an output voltage from the rectification circuit and a resonant…
US 6246811 Irreversible Optical Device Utilizing Optical Frequency Shift
An irreversible optical device using an optical frequency shift. The invention provides an irreversible phase shifter including frequency shifters. An irreversible interferometer is also provided which includes the irreversible phase shifter. The invention also provides an irreversible interferometer using a twin-mode optical fiber. In addition to…
US 6423241 Ink Jet Print Head and a Method of Producing the same
Disclosed is an ink jet print head and a method of producing the same, the ink jet print head including a plurality of ink ejecting orifices which are formed with a desired shape and a uniform size by only once using metal plating technique, having an excellent productivity and a low manufacturing cost …
US 6411327 Stereo camera system for obtaining a stereo image of an object, and system
A stereo camera system for obtaining a stereo image of an object to measure distance between the stereo camera system and the object is provided. The stereo camera system 10 comprises a camera and a prism arranged at a desirable distance from the front side of the lens of said camera. The prism may be a delta shaped biprism having a base, a first…
US 6384507 Coreless AC Induction Motor
Disclosed herein is a coreless AC Induction motor. The motor comprises a cup type coreless rotor. A rotating shaft is combined with the cup type coreless rotor. An induction rod is inserted into the cup type coreless rotor to guide a magnetic flux from the stator effectively. A stator is positioned around the coreless rotor.
US 6440288 Method for preparing anode electrode for high voltage electrolytic capacitor
Disclosed is a method for forming an aluminum oxide film of a large surface area on an electrode for a high voltage electrolytic capacitor. In accordance with the method, an oxide film of a uniform thickness is formed, prior to a process of etching the oxide film. A re-anodization is then partially conducted for an etched portion of the oxide…
US 6528993 Magneto-optical Microscope Magnetometer
A magneto-optical microscope magnetometer capable of simultaneously measuring a hysteresis loop and activation magnetic moment of a submicrometer-scale local area (about 0.30.3 m). An electromagnet capable of applying a magnetic field to a magnetic material is attached to a polarizing optical microscope capable of observing a magnetized state of…
US 6548806 Apparatus for Monitoring Frequency of WDM Signals Using Pilot Tone
An apparatus monitoring frequency of WDM signals using pilot tone and two interleaved solid etalon filters for efficient management and maintenance of wavelength division multiplexing optical transmission network is provided. Desirably, the apparatus for optical frequency monitoring includes splitting means, a plurality of optical filtering means,…
US 6727642 Flat Field Emitter Displays
Disclosed are flat panel field emitter displays whose unit cell structure adopt a planar cathode structure in stead of a conventional microtip structure, so as to increase the degree of integration and can be operated at low operation voltages at high speeds. In the structure, a channel insulator is formed below the cathode and underlaid by a…
US 6781732 Electromagnetically actuated micromirror actuator and fabrication method thereof
Disclosed is a micromirror actuator having a two-axis freedom and actuated by an electromagnetic force and fabrication method thereof. The micromirror actuator includes a substrate, a frame configured to be connected with the substrate, a micromirror configured to be connected with the frame, first and second torsion bars connecting the substrate…
US 6947891 Efficient Speech Recognition System Bases on an Auditory Model
A speech recognition system that is insensitive to external noise and applicable to actual life includes an A/D converter that converts analog voice signals to digital signals. An FIR filtering section employs powers-of-two conversion to filter the digital signals converted at the A/D converter into numbers of channels. A characteristic extraction…
US 6944347 Image Compression and Restoring Method for Binary Images
The present invention relates to the image compression and restoring method for binary images that can be used in binary image equipment including printers.
US 6937908 Method for Tuning PID Controllers Applicable to Nonlinear Systems
A method for tuning a PID controller includes the steps of inducing equivalent relationships between PID gains of the PID controller and parameters of time delay control (TDC), selecting a natural frequency vector and a damping ratio vector so as to acquire a desired error dynamics of the closed PID control loop system, selecting a sampling time…
US 6866721 Apparatus and Method for Photo-induced Process
Apparatus for a photo-induced process are provided, which implement a transparent film (instead of an optical window), to reduce light absorption loss that would result from use of an optical window. A photo-induced process apparatus eliminates problems of conventional systems which use optical windows, such as blurring an optical window and the…
US 7068848 Method of Coding Image Data Using Region of Interest
A region of interest coding method based on the SPIHT algorithm, in which more bits are allocated with respect to a region of interest to quickly compress and restore an image, is provided. The region of interest coding method is applied to a multiple resolution coding operation. In the coding method, an image is coded using the SPIHT algorithm…
US 7127085 Image processing method for automatic image registration and correction
There is provided an image processing method for use in a computer system having a database for storing a reference image, control point chips (CP chips) of the reference image, and auxiliary data including geographic coordinates, incidence angles and orientation angles of the reference image and the CP chips, comprising the steps of (a) a CP chip…
US 7020294 Method for active noise cancellation using independent component analysis
The present invention considers a method for active cancellation using independent component analysis. More particularly, the present invention relates to a method which is operable the independent component analysis technique to an adaptive algorithm that can consider secondary or more higher statistical characteristics.
US 7141783 Apparatus for Focusing Particle Beam using Radiation Pressure
The present invention relates to an apparatus for focusing particle beams using a radiation pressure capable of obtaining the same flow amount and a narrower particle beam width with respect to the particle size and a higher numeral density. It is possible to form the particle beams by applying the radiation pressure to the particles with respect…
The present invention discloses an infrared bolometer including a signal bridge used for reading a resistance value varied by infrared heat and removing residual heat of a heat absorbing layer. The infrared bolometer includes a lower substrate having an integrated circuit coated with a protection layer, an upper substrate having an absorbing layer…
The present invention relates to a wavelength-division multiplexed passive optical network. In particular, it relates to a technology for minimizing the optical loss at a wavelength-division multiplexed passive optical network based on wavelength-locked light source Thereby it improves the transmission quality and increases the transmission…
US 7268027 Method of Manufacturing Photoreceiver
Disclosed is a method of manufacturing a photoreceiver, including sequentially laminating a buffer layer, a channel layer, a barrier layer, and a cap layer on a substrate; forming a mesa for HEMT and MSM PD by removing the buffer layer, the channel layer, the barrier layer, and the cap layer with the exception of a region corresponding to HEMT and…
US 7253945 Amplitude Dividing Type Laser Amplification Apparatus
An optical amplification apparatus includes a polarizing beam splitter for reflecting a portion of an incident light and transmitting a remaining portion of the incident light, depending upon a polarized state of the incident light, at least two optical amplification means each including a first polarizing plate which makes polarized states of the…
US 7161441 High Frequency Distributed Oscillator using Coupled Transmission Line
The present invention relates to a distributed oscillator, and more particularly, to a high frequency distributed oscillator using coupled transmission lines. According to the present invention, coupled transmission lines capable of increasing the frequency selectivity are used as transmission lines. Signal interference occurs among the coupled…
US 7369771 Optical network terminator and optical network connection method using it
An optical network terminator of the present invention includes an optical wavelength division multiplexer for receiving an optical signal and incoherent light. An optical detection unit converts a downstream high speed and low speed optical signals into electrical signals. A laser diode converts an upstream signal into an optical signal. A high…
US 7420424 Power Amplifier Transmission Line Transformer
Disclosed herein is a power amplifier which is used in a wireless communication system and is capable of improving efficiency in an entire output power range and extending the dynamic range without additional switches, by including a drive amplification unit and a power amplification unit, connecting the drive amplification and the power…
US 7405830 Vibration-insensitive Interferometer
The present invention relates to vibration-insensitive point-diffraction interferometry. For the purpose of obtaining high immunity to vibration, a single-mode optical fiber is used to generate the reference wave, by means of point diffraction, directly from a measurement wave reflected from test objects. The capability of vibration…
US 7319317 Probe Card and Method for Producing the same
A probe card is used in conducting a visual test for a target test object through simultaneous contact of the probe card with each and every electrode pad of the target test object. The probe card includes a plurality of probes composed of conductive wire strands and having elastically deformable contact parts so curved as to make contact with…
US 7479830 Differential Amplifier Using Body-source Cross Coupling
Disclosed herein is a differential amplifier using body-source cross coupling. In a common gate differential amplifier in which common gate amplifiers are implemented in a differential structure, since the bodies of the common gate amplifiers are cross coupled to the sources of the opposite common gate amplifiers, it is possible to increase…
US 7598903 Sensor for Measuring Distance and Method for Measuring Distance Using the Sensor
A distance measurement sensor and a distance measurement method using the same are disclosed. The distance measurement sensor can use all of a pulse method and a Continuous Wave (CW) method, can select an appropriate measurement method according to the distance to be measured, thereby accurately measuring the distance. The distance measurement…
US 7556118 Airbag System for an Automobile and Method of Operating the same
The present invention may provide an airbag system for an automobile and a method of operating the same. The airbag system comprises the following: sensors mounted on a frame member of a the vehicle frame for detecting a crash by sequentially measuring stress wave cause by the crash; an electronic control unit for outputting an actuation signal…
US 7498877 Power Amplifier with Automatic Switching Function
A power amplifier with automatic switching functions is disclosed. The power amplifier can variably control output power of circuits as all of the circuits are operated when relatively large power is needed, and the circuits are partially turned off when relatively small power is needed, according to magnitude of an envelope signal, such that the…
US 7548134 Transmission Line Transformer
A transmission line transformer is disclosed. The transformer improves efficiency and a dynamic range of a power amplifier. The transformer is formed to have a plurality of load impedances as the primary side of the transmission line transformer is separated to form a plurality of primary transmission lines with parasitic components which are…
US 7515081 High Resolution Digital-to-Analog Converter
A digital-to-analog converter comprises a current supplier, a current divider dividing current supplied from the current supplier into certain amounts, an inverter outputting inverted signals of input signals and non-inverted signals, a switch controlling a flow of the current divided into the certain amounts by the current divider according to…
US 7636365 Smart digital modules and smart digital wall surfaces combining the same
Disclosed are smart digital modules, a smart digital wall combining the smart digital modules, a context-aware interactive multimedia system, and an operating method thereof. The smart digital wall includes local coordinators for controlling the smart digital modules, and a coordination process for controlling the smart digital modules. The smart…
US 7737828 Tactile Feedback Device
The present invention discloses a tactile feedback device for giving realistic touch sensation to the user by stimulating the skin of the user. The tactile feedback device of the present invention comprises a housing having one end positioned near the skin of the user in use, an actuator, touch pins and an elastic means. The actuator is mounted…
US 7730199 Method and System of Processing a Data Stream
Methods and systems of processing a data stream are disclosed. A developer may develop a service only by programming a Service Unit (SU) including a service logic (SL) and including a Service Unit Description Language (SUDL) file, so that the developer may not need to program complicated stream processing code, such as stream source connection…
US 7656347 Quadrature Radar Apparatus
A quadrature radar apparatus includes a quadrature signal generating unit, a plurality of coupler modules connected to the signal generating unit, an antenna unit receiving transmission signals from the coupler modules and a reception signal reflected from a target, one or more phase delay modules connected between one or more of the coupler…
US 7684769 Data Communication Apparatus and Module Using Human Body
In circumstance of a wearable computing system, in order to effectively transfer data between electronic devices using electric property of human body, minimization, low power, and high-speed are required. Human body data communication apparatus and module using broadband signaling technology is provided to perform high-speed peer-to-peer data…
US 7822920 Mass Prefetching Method for Disk Array
Disclosed herein is a mass prefetching method for disk arrays. In order to improve disk read performance for a non-sequential with having spatial locality as well as a sequential read, when a host requests a block to be read, all the blocks of the strip to which the block belongs are read.
US 7764212 Driving Apparatus for Display
A driving apparatus for a display is provided. The driving apparatus for a display comprises a reference voltage generator, a digital-to-analog converter, and an output unit. The reference voltage generator generates a plurality of reference voltages, and receives a difference value between two adjacent reference voltages and generates a plurality…
US7835420 Orthogonal resource block hopping multiplexing method and apparatus
An orthogonal resource block hopping multiplexing (ORBHM) method and apparatus in a wired/wireless communication system in which a plurality of communication channels coexist in a single medium. The orthogonal resource block hopping multiplexing (ORBHM) communication system consists of a first communication station and a plurality of second…
US 7710200 Output Buffer and Power Amplifier Comprising thereof
The present invention relates an output buffer and a power amplifier having the same. The output buffer includes a push-pull circuit unit, an output unit, and a driver. The push-pull circuit unit includes transistors connected to each others in a push-pull formation between a high level power voltage and a low level power voltage. The output unit…
US 7830337 Method and Apparatus for Driving AC Plasma Display Panel with Four Electrodes
The present invention provides a driving method of a plasma display panel with ADS method comprising a reset period including an erase period, a rising period and a falling period, an address period and a sustain period, in which an auxiliary electrode is inserted between a scan electrode and a sustain electrode which are disposed in parallel on a…
US 8012902 Partially Deactivated Metal Catalysts and Methods for Preparing the same
Disclosed are partially deactivated metal catalysts useful for modifying structures of nanomaterials. The present invention is also directed to a method for preparing the partially deactivated metal catalysts, which comprises patterning a substrate with micelles containing iron nanoparticles, removing the micelles from the patterned substrate to…
US 7895188 Processing Method of Data Stream using Border Monitoring Query
The present invention relates to a processing method of data stream using Border Monitoring Query, and more particularly a monitoring method and a system for data streams which are a large volume of data and continuously generated such as financial ticker, GPS data or a ubiquitous sensor network (USN).
US 7106974 Low-cost WDM Source with an Incoherent Light Injected Fabry-Perot Laser Diode
The present invention discloses a low-cost light source for optical transmission systems and optical networks based on wavelength-division multiplexing (WDM) technology. A light source in accordance with the present invention is implemented by externally injecting a narrow-band incoherent light into a Fabry-Perot laser diode (F-P LD). After…
US 6559984 Fiber Optic Network Path Monitoring
The present invention relates to an optical path monitoring device on the basis of the identification of input ports in optical cross-connect systems. An optical path monitoring apparatus in an optical cross-connect system is provided. The optical cross-connect system in accordance with the present invention includes input ports,…
US 6538784 Fiber Optic Network Switches and Routers
This invention relates to a multicast-capable optical cross-connect with layered modularity. Due to its layered modularity, this invention can be applied to many differently structured networks and provides easier maintenance than conventional optical cross-connects and efficient preparation for network evolution or node upgrade. By exploiting its…
US 6545763 Measurement and Verification of Semi-conductor Deposition Patterns
A method and a recording medium for measuring three-dimensional thickness profile and refractive index of transparent dielectric thin-film with some patterns or not, which is fabricated in the semiconductor and related industrial field, using white-light scanning interferometry is provided.
US 6501336 Self-calibration device and method for calibrating phase offset between …
Disclosed is a self-calibration device for calibrating a phase difference between output waveforms of a ring oscillator, comprising: a voltage-controlled oscillator adapted to adjust the transition time of an output signal according to an inputting of a control voltage for controlling the phase offset and generate the adjusted output signal; a…
US 6424279 Sigma-delta analog-to-digital converter using mixed-mode integrator
The present invention relates to a sigma-delta analog-to-digital converter using a mixed mode integrator composed of an analog integrator and a digital integrator, which can prevent the performance degradation due to the saturation of an integrator of the overload of a quantizer. A sigma-delta analog-to-digital converter having an anti-aliasing…
US 6477912 Six-degrees-of-freedom parallel mechanism for micro-positioning work
A six-degrees-of-freedom parallel mechanism for micro-positioning work is disclosed. This mechanism freely performs a desired motion of translation and rotation of a moving platform using internal and external links actuated by linear actuators capable of precisely controlling the link positions, thus being effectively used as a 6dof parallel…
The present invention provides a method, which infiltrates super-heated material between preheated powder particles and therefore minimizes heat deformation and increases measurement accuracy. A rapid prototyping apparatus in accordance with the present invention comprises powder material spreading means, dispensing infiltration material means,…
US 6040678 Switched Reluctance Motor Having Noise and Vibration reduced
A switched reluctance motor having a rotor and a stator is provided the motor includes means for adjusting a relative angle between a switch turn-off angle at which a switch for supplying power to a coil is turned off, and a tooth overlap angle at which a tooth portion of the rotor and a tooth portion S of the stator are overlapped according to a…
US 5790584 Highly repetitive laser employing a rotating wedge
The present invention relates to a highly repetitive laser employing a rotating wedge, and more specifically, a laser employing a rotating wedge which can provide a laser beam having a uniform spatial intensity profile with a high repetition rate. The highly repetitive laser of the invention is characterized by positioning a rotating wedge between…
US 7929963 Cognitive radio based air interface method in wireless communication system
A cognitive radio-based wireless communication system and an air interface method in a physical layer and a data link layer, which constitute a cognitive radio-based next-generation wireless communication system. The air interface method for wireless communication in the cognitive radio-based wireless communication system of the present invention…
US 8004124 Vibration generation module capable of generating inertial and impact vibrations
Disclosed herein is a vibration generation module capable of generating inertial and impact vibrations. The vibration generation module includes a magnetic force generation unit, an elastic force provision unit, a permanent magnet, a contactor, and an impact transmission panel. The permanent magnet is configured such that when periodic electrical…
US 8009350 Laptop-size high-order harmonic generation apparatus using near field Enhancement
Disclosed herein is a laptop-size high-order harmonic generation apparatus using near field enhancement. The laptop-size high-order harmonic generation apparatus using near field enhancement includes a femtosecond laser generator, light transfer means for transferring light output from the femtosecond laser generator, micro patterns formed of…
US 8010880 Forward Error Correction Decoder and Method thereof
Provided are a forward error correction decoder and a method thereof. The method comprises: generating mapping information on a location of a symbol; deciding a location of an error in a packet; deciding an erasure of a subsequent packet following the packet on the basis of the error location and the mapping information; and decoding the…
This invention is to provide a phase stabilization device for stimulated brillouin scattering-phase conjugate mirrors and a light amplification apparatus using the phase stabilization device. A light amplification apparatus of the present invention includes a polarizer for polarizing light beams reflected from a plurality of stimulated brillouin…
US 7876292 Active matrix OLED driving circuit using current feedback
An active matrix organic light emitting diode AMOLED driving circuit using current feedback that ensures the uniformity of brightness in pixels of a flat panel display and shortens the time required to input accurate current to respective pixels in the driving circuit.
US 8014618 High-speed Motion Compensation Apparatus and Method
The present invention relates to a high-speed motion compensation apparatus and method. The high-speed motion compensation apparatus for H.264/AVC includes a bus interface unit for reading a plurality of word addresses from an external storage device, aligning the reference pixels arranged over the plurality of word addresses, temporarily storing…
US 8022784 Planar transmission line-to-waveguide transition apparatus having an embedded bent stub
A wireless communication module includes a plurality of monolithic millimeter-wave integrated circuits (MMICs) for signal processing attached to the top surface of a multi-layer low temperature co-fired ceramic substrate; a planar transmission line formed on the top surface of the multi-layer substrate for communications between the MMICs; a metal…
A direct memory access apparatus and a direct memory access method.
US 8094922 Crack Measuring Method and Apparatus
Disclosed are a crack measuring method that may automatically measure crack growth in a surface of a structure rapidly and exactly without influencing the structure using image processing scheme, and an apparatus thereof. The crack measuring method includes: irradiating light to a surface of a structure; converting reflected light, wherein the…
US 8108356 Method for Recovering Data in a Storage System
In one aspect of the invention, there is disclosed a recovery method in a storage system that integrates shadow page and deferred update techniques. Updates of a page in the buffer are not immediately reflected to the database, but are deferred until the transaction is committed. Instead, the updated buffer page is stored in the log volume in the…
US 8121431 Method and apparatus for detecting edge of image and computer readable
The present invention provides a method and apparatus for detecting a noise distribution of an image close to a true distribution, and detecting an edge of the image precisely and quickly based on the detected noise distribution without performing a smoothing process for the image, and a computer readable medium processing the method. The method…
US 7136031 Reflecting Three-dimensional Display System
The present invention provides a reflection-type three-dimensional display system. The present invention comprises an image providing device that provides elemental images; an image displaying device that displays the elemental images; a projective lens system that is located along the same axis as the image providing device; and a concave mirror…
US 7151510 Method of Driving Plasma Display Panel
The present invention is to provide a method and apparatus for driving an AC PDP, where background luminance is reduced and the time required for a reset period is shortened while the stability and an address margin are sufficiently maintained, thus improving reset performance. The present invention provides a method of driving an Alternating…
An apparatus for generating and measuring bending vibration in a pipe buried underground or a pipe covered by insulating materials is disclosed. There is provided an apparatus for generating and measuring bending vibration in a non-ferromagnetic pipe without physical contact, comprising: a ferromagnetic strip adhered on a surface of the pipe; a…
A method and an apparatus for structural diagnosis, which generates torsional waves upon a shaft, beam or pipe having arbitrary cross-sections, such as a circular cross-section, and senses existence or location of the cracks through analyzing reflected waves are disclosed. A magnetostrictive transducer comprises a plurality of ferromagnetic strips…
US 6956384 Linear Displacement Transducer with Improved Accuracy
The present invention relates to a linear displacement transducer with improved accuracy, in which stable contact is achieved by forming contacts coming into contact with resistors in a elastic linear contact type, rather than a conventional point contact type, using a rotating roller made of a conductive rubber material, and the life span thereof…
Provided are a method of generating strong spin waves, a method of simultaneously generating spin waves and electromagnetic waves, a logic operation device using spin waves, a variety of spin wave devices employing the same, and a method of controlling phases of spin waves. In the method of generating spin waves, strong spin waves are generated by…
US 7302762 Plate Type Capacitive Sensor for Five-dimensional Displacement Measurement
Disclosed herein is a plate type capacitive sensor for five-dimensional displacement measurement that is capable of simultaneously measuring five-dimensional movement of an object, which includes the horizontal movement, the vertical movement, and the tilt of the object. The plate type capacitive sensor for five-dimensional displacement…
US 8018582 Simultaneous Detection Apparatus of Raman and Light Scattering
Provided is a detection apparatus of Raman scattering and light scattering, and more particularly, a simultaneous detection apparatus of Raman scattering and dynamic light scattering and a detection method using the same. The simultaneous detection apparatus of Raman scattering and light scattering includes: a detection unit for applying incident…
The present invention relates to a method for estimating an optimized transmission bit rate in a wireless local area network (LAN) system, which is to provide an accurate data transmission bit rate according to channel status when block data are transmitted in the wireless LAN system. According to the present invention, there is provided a method…
US 8142631 Particle focusing apparatus and method for focusing particles by using the same
In a particle focusing apparatus and a method for focusing particles, the particle focusing apparatus includes a channel, a fixing member, a fluid feeding portion and a power supply. The channel has first and second ends and extends substantially in a line. The fixing member includes a first fixing portion connected to and fixing the first end,…
US 8055490 Semi-Lagrangian CIP fluid solver without dimensional splitting
A new constrained interpolation profile method, which is stable and accurate but requires less amount of computation, is provided. CIP is a high-order fluid advection solver that can reproduce rich details of fluids. It has third-order accuracy but its computation is performed over a compact stencil. A novel modification of the original CIP method…
US 6661829 Vertical Cavity Surface Emitting Laser
Provided is a vertical cavity surface emitting laser (VCSEL) including a feedback member which feeds a portion of light externally emitted from a resonator for generating and amplifying a laser beam, back into the resonator by reflecting the same and acts as a concave mirror for the resonator. The VCSEL operates predominantly in the single…
US 6873289 3-dimensional Beam Steering System
The present invention relates to a beam steering system. The system includes an array of a plurality of antenna elements, each antenna element being electrically and mechanically controlled for steering a beam in a specific direction, and a millimeter wave subsystem quasi-optically integrated with a 3-dimensional beam steering device and an…
US 7397808 Parallel Switching Architecture for Multiple Input/Output
A multiple input/output-queued(MIOQ) switch is presented. This MIOQ switch comprises a (k,m)-dimensional crossbar fabric having k ingress lines and m egress lines; N input buffers at each input; M output buffers at each output; N×k interconnection networks each of which is able to move a packet from each input to one of the k egress lines; and…
Provided are a low-temperature formation method for emitter tips including copper oxide nanowires or copper nanowires and a display device or a light source manufactured using the same. The low-temperature formation method includes preparing a substrate having an exposed copper surface. The copper surface contacts an oxide solution at a low…
The object of the present invention is to provide a wireless communication method and apparatus, which obtains both Multi-User Diversity (MUD) and Multi-User Multiplexing (MUM) effects simultaneously using multiple beams having random weights. In the wireless communication method, a transmission stage having M antennas (M is an integer equal to or…
US 7526047 Method for encoding a message into geometrically uniform space-time trellis codes
A method for coding messages by group codes over label alphabet and H-symmetric labeling is provided in order to encode geometrically uniform space-time trellis codes considering a distance spectrum. The coding method makes the complexity of code searching reduced considerably by limiting the object of the code design to geometrically uniform…
US 7492808 Decoding method using adaptive step-size algorithm for a space-time coded DS-CDMA system
Disclosed is a method for decoding received signals on communication channels between at least one transmit antenna and plural receive antennas in a space-time coded direct sequence (DS)-CDMA communication system. The decoding method includes steps of: adjusting the step-size which is an update unit for the tap weight vector for…
Disclosed is a method for encoding messages with space-time trellis codes(STTC) and transmitting the encoded messages in communication system provided with at least two transmit antennas and at least one receive antenna. The method comprising generating a codeword by encoding message using STTC; generating a modified codeword by multiplying the…
Provided is an electromagnetic acoustic transducer including a main body formed of a non-metal material and having a hollow portion, a magnetic field generation portion generating two magnetic fields parallel to a lengthwise direction of the rod member and in opposite directions to each other, at both sides of the rod member that is inserted in…
US 8124298 Method of Fabricating a Chromium Nitride Coated Separator
Provided are a metallic separator for fuel cell in which a Cr.sub.2N layer is formed on the surface of base metals, and a method of fabricating the metallic separator or fuel cell. The method comprises: plating chromium layer on the surface of the base metal; and forming a Cr.sub.2N layer by nitriding the chromium-plated layer in properly selected…
US 7884667 Pulse area modulation and high-efficiency linear power amplifier system using the same
A linear power amplifier system using pulse area modulation includes: an envelop/phase decomposer for decomposing an input signal into an envelop signal and a phase signal; a pulse area modulator for modulating the envelop signal such that an area of the modulated envelop signal is proportional to an amplitude of the envelop signal; a control…
US 7929414 Modified SLM scheme with low complexity for PAPR reduction of OFDM systems
Provided are an apparatus and method for reducing a PAPR with less computation complexity without distortion using a selected mapping scheme (SLM) in an OFDM system. The method includes: generating a plurality of OFDM signal sequences by performing an inverse fast Fourier transform (IFFT) operation on input symbol sequences, which are…
US 7719161 Method of Designing Rotary Thermal Actuator and Rotary Thermal Actuator
Provided are a method of designing a rotary thermal actuator and a rotary thermal actuator. The method includes setting the shape of an entire design domain; dividing the entire design domain into a predetermined number of domains which are symmetrical to one another in a rotational direction from the center of the entire design domain; designing…
US 8050445 Microspeaker and Method of Designing the same
Provided are a microspeaker and a method of designing the same. The microspeaker includes a first permanent magnet and a second permanent magnet disposed on the first permanent magnet with a predetermined gap therebetween, the first and second permanent magnets having opposite magnetization directions; a third permanent magnet and a fourth…
Provided are a dielectric film, a method of manufacturing the same, and a semiconductor capacitor having the dielectric film. The semiconductor capacitor includes a lower electrode, a ferroelectric layer disposed on the lower electrode, a paraelectric layer disposed on the ferroelectric layer, and an upper electrode disposed on the paraelectric…
US 7359598 Surface plasmon optic devices and radiating surface plasmon sources for photolithography
Disclosed is a surface plasmon optic device that has a periodic array of apertures in a dielectric substrate and a metal film formed on the dielectric substrate and emits light from metal-air interface. The surface plasmon optic device includes a surface plasmon generating apparatus, a surface plasmon detecting apparatus, a surface plasmon…
US 6693627 Apparatus and Method for Automatically Displaying Information
The present invention provides an apparatus and method which contains a particular date preset by a user and several groups of particular information, each group relating to a pre-specified date difference between the preset date and current date, and automatically displays a group of information corresponding to current date difference. The…
The invention relates to root-specific expansin gene to regulating root growth and obstacle-touching stress resistance in the plant, and more particularly to a root growth regulating gene, GmEXP1, isolated from soybean (Glycine max), an expansin polypeptide encoded by the gene and a method for enhancing root growth of plants by overexpression of…
US 6528445 Dielectric Ceramic Composition and Method for Manufacturing the same
Disclosed is a dielectric ceramic composition suitable for use in planar or multilayer type electronic parts containing inner conductors, for the fabrication of which simultaneously sintering base materials and conductors is required. This ceramic composition is composed of (1-x)Ba.sub.3 Ti.sub.4 Nb.sub.4 O.sub.21 -(x)Ba(or Sr)Nb.sub.2 O.sub.6…
US 8597718 Calcium phosphate ultrathin films and a method for preparing them
An ultrathin film of calcium phosphate crystals having a thickness of 200 nm or less on a surface of a solid substrate, and a method for preparing the same are disclosed. Further, an amorphous dendritic extension used as an intermediate material in preparation of the ultrathin film of calcium phosphate and a method for forming the same are…
US 7887736 Superhydrophobic Polymer Fabrication
A superhydrophobic polymer fabrication is provided. According to one method for preparing a superhydrophobic polymer fabrication, the superhydrophobic polymer fabrication can be fabricated quickly and easily, and the superhydrophobic surface can be repeatedly imprinted using a template, so that mass production of the superhydrophobic polymer…
US 8216638 Arranging Material On a Substrate
Techniques for arranging materials on a substrate are provided. In one embodiment, a system may comprise a driver for providing a rotational force, an outer body having an inner surface, and an inner body having an outer surface and disposed within the outer body in a concentric relationship therewith. The inner body may be coupled to the driver…
US 7579050 Method for Focusing Patterning Nano-sized Structure
A nano-structure can be focus-patterned while minimizing the generation of a noise pattern by the inventive method which comprises the steps of: (i) mounting a plate having a nano-scale pattern formed thereon by a patterned photoresist layer on an electrode placed in an externally grounded reactor and applying a voltage to the electrode; (ii)…
Disclosed is a deodorizer composition comprising magnesium and calcium phosphate compounds, capable of effectively removing various malodorous components from the atmosphere.
PCT KR2011-003008 Nanofluidic Fluorescence Apertureless Near-field Scanning Optical Microscope
A fluorescence apertureless near-field scanning optical microscope which is capable of focusing outputs of fluorescence signals to a specific direction…
US App 20140016207 Optical Film with an Array of Partial Coating Structure and Preparation thereof
Optical film with an array of structures on which a material having different refractive index, absorbancy or reflectivity from that of a surface of the structures is partially coated.
US 8917079 Reference Potential Adjustment Device and a Measuring Device Equipped with the same
Reference potential adjustment device. The present invention can be easily manufactured and reduce a price, comparing to a conventional reference electrode using Ag/AgCl.
A concept lattice-based query term mapping system which collects terms (terms in use) used correlatively with oneanother by a plurality of users, and represents terms associated with specific terms (query terms) in a graph.
PCT KR2011-000928 Apparatus and Method for Controlling Motion
Controlling character in complex virtual environment. Controlling character can modify 3D path information and change motion fragment, based on constraint information.
US App 20130211586 Apparatus and Method for Controlling a Data-Based Biped
A biped control, wherein target pose information for tracking control is provided by an animation engine, and/or is generated by modulating the reference pose information acquired from video capture data.
US App 20120075349 System and Method for Motion Editing Multiple Synchronized Characters
Motion editing system which edits motions of multiple synchronized characters by editing a spatial route of inputted data, processing the distortion of the interaction time, and applying a discrete transformation.
Processing instructions by processing element which can proceed a branch statement with high speed, in the processing element constituting CGRA or SIMD by DISE method.
A method for self configuration of wireless sensor network(WSN) based on the cluster tree structure, enables performance of large scale self configuration of WSN to improve.
A method for transmitting and receiving signal through avoiding same and different kind of interference signals in a same band of FHSS system, improves performance of wireless communication system, i.e., bluetooth.
A method for transmitting a signal while avoiding the influences of an interference signal in the same channel, temporarily transceive signals using a plurality of available transmission channels and determines the channel having a best link state as a transmission channel from among the plurality of used transmission channels and returns to an…
PCT KR2011-004544 Method and Apparatus for Resource Allocation in a Virtual Network
A method for resource allocation in a virtual network of a resource allocation device, sets the path and allocates the bandwidth, that the method is suitable for reducing waste of unnecessary resources and efficiency of network.
A method for estimating a channel using a dedicated pilot signal in an OFDM-based wireless communication system using a transmission beamforming technique and a multi- antenna transmission technique, which can minimize channel estimation errors and can maximize a throughput of a system by adaptively determining an optimum dedicated pilot pattern…
US App 20120275669 Adaptive Fingerprint Scanning
embodiment, a scanning device will be provided that includes a scanning area comprised of a set (e.g., at least one) of imaging pixel electrodes (e.g., arranged adjacent to one another in a grid- like or other fashion). As a user presses his/her finger against the scanning area, a first portion of the finger will contact a first electrode…
US 8561899 Time-Varying Barcodes For Information Exchange
Embodiments of the present invention provide time-varying barcodes for information exchange. Specifically, embodiments of the present invention provide a system and method for communicating information between electronic devices via a time-varying barcode image sequence. In a typical embodiment, information to be transmitted is divided…