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| Number | Title | Issue Date |
| 8180221 | Wavelength-division multiplexed passive optical network for reducing degradation in noise characteristic of wavelength-locked fabry-perot laser diodes The present invention relates to a wavelength-division multiplexed passive optical network (WDM-PON) for reducing degradation in noise characteristic of a wavelength-locked Fabry-Perot Laser Diode (F-P LD). A WDM-PON for reducing degradation in a noise characteristi... | 05/15/2012 |
| 8173280 | Nickel oxide film for bolometer and method for manufacturing thereof, and infrared detector using the same There are provided a nickel oxide film for a bolometer and a manufacturing method thereof, and an infrared detector using the nickel oxide film. The nickel oxide film has properties with a TCR value greater than −3%/° C., a low noise value, and stable and high re... | 05/08/2012 |
| 8160597 | Apparatus and method for allocating segments in broadband wireless communication system An apparatus and method for allocations segments in a broadband wireless communication system is provided. Sector pairs are generated with respect to all sectors existing in different cells and the generated sector pairs are sorted according to priority based on a p... | 04/17/2012 |
| 8160185 | Apparatus for synchronizing OFDM signal using open-loop frequency synchronization method and frequency offset estimation scheme using the apparatus There are provided an apparatus for synchronizing an OFDM signal using an open-loop frequency synchronization method, which can estimate and compensate for various types of frequency errors generated in a frequency modulation broadcasting/communication system to whi... | 04/17/2012 |
| 8158034 | TiONnanotubes and method for preparing the same TiO2-xNx (0.01≦x≦0.2) nanotubes and a method for preparing the same are disclosed. More particularly, TiO2-xNx (0.01≦x≦0.2) nanotubes doped with nitrogen atoms by treating TiO2 nanotubes through nitrogen... | 04/17/2012 |
| 8120451 | Electrostatic actuator The present invention relates to a micro-electromechanical system (MEMS) and, more particularly, to an electrostatic actuator, and a driving method thereof and an application device thereof. The electrostatic actuator in accordance with the present invention compris... | 02/21/2012 |
| 8105977 | Counterfeit prevention paper and manufacturing method thereof The present invention relates to a counterfeit prevention paper and manufacturing method thereof, and more particularly to currency, securities, official document and several certificates, etc. The counterfeit prevention paper according to the present inventi... | 01/31/2012 |
| 8089990 | Apparatus and method for preventing data read error for orthogonal frequency division multiplexing symbol demodulation Disclosed are an apparatus and a method for preventing data read error for OFDM symbol demodulation. An average time synchronization offset estimating unit estimates average time synchronization offset between a pilot symbol of a time synchronized data frame and pil... | 01/03/2012 |
| 8078061 | Wavelength division multiplexed-passive optical network capable of high-speed transmission of an optical signal by using modulation format having high spectral efficiency 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... | 12/13/2011 |
| 8041357 | Apparatus and method for reallocating segments in broadband wireless communication system An apparatus and a method for reallocating segments in a broadband wireless communication system are provided. An average density for all cells in system and an average minimal inter-cell distance R are computed. A circle is determined having a radius kR and a cente... | 10/18/2011 |
| 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 estima... | 10/18/2011 |
| 8035890 | Phase stabilization device for stimulated brillouin scattering phase conjugate mirrors and light amplification apparatus using the same The object 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 inc... | 10/11/2011 |
| 8008981 | Multi-phase ultra-wideband signal generator using differential pulse oscillators and array thereof 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 ... | 08/30/2011 |
| 8008706 | Non-volatile memory cell and non-volatile memory cell array with minimized influence from neighboring cells The present invention relates to a non-volatile memory cell and a method of fabricating the same. The non-volatile memory cell according to the present invention comprises a substrate, a first oxide film formed over an active region of the substrate, a source and dr... | 08/30/2011 |
| 7989154 | Polymer or resist pattern, and metal film pattern, metal pattern and plastic mold using the same, and fabrication methods thereof A method of fabricating a polymer or resist pattern over a substrate includes coating a photosensitive polymer or resist over the substrate to form a polymer or resist layer, determining a portion of the polymer or resist layer to be exposed to light, placing a ligh... | 08/02/2011 |
| 7988750 | Method for recovering methane gas from natural gas hydrate The present invention relates to a method for recovering methane gas by adding a gas mixture containing N2 and CO2 gases to natural gas hydrate and reacting them. The method for recovering methane gas from natural gas hydrate of the present inv... | 08/02/2011 |
| 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... | 07/19/2011 |
| 7976215 | Apparatus and method for measuring thermal diffusivity using the flash method The present invention relates to an apparatus and method for measuring thermal diffusivity using the flash method. The apparatus includes: a laser generator 60 for generating a flash beam 30; a measurement sample 10 having graphite layers 20 | 07/12/2011 |
| 7974349 | Optimum perturbation apparatus and method in a multi-antenna multi-user communication system An optimum perturbation apparatus and method in a multi-antenna, multi-user communication system are provided. In the optimum perturbation method, upon receipt of modulation symbols, channel responses are decomposed into eigenvalues and eigenvectors by Single Value ... | 07/05/2011 |
| 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 ... | 06/21/2011 |
| 7957048 | Display device and method of manufacturing the same A display device includes an upper substrate and a lower substrate. Black matrixes are formed upon the upper substrate and color filters are formed between the black matrixes. Microshutter electrodes are formed upon the lower substrate and are configured to open and... | 06/07/2011 |
| 7951558 | Method for extracellular production of target proteins by co-expression of OmpF and Target proteins The present invention relates to a method for secreting and producing a target protein into cell culture broth. More particularly, the invention relates to a microorganism co-transformed with a recombinant expression vector containing E. coli outer membrane p... | 05/31/2011 |
| 7945268 | Apparatus and method for IDcell allocation in a broadband wireless communication system An apparatus and a method for allocating IDcells in a wireless communication system are provided, in which an initial IDcell allocation is performed by allocating entire sectors to elements of an N×M IDcell matrix, a sector pair with the highest proximity is select... | 05/17/2011 |
| 7929445 | Apparatus and method for determining data transmission rate in multi-hop relay system Provided is an apparatus and method for determining a data transmission rate in consideration of the queue length of a Relay Station RS in a multi-hop relay system. A Base Station BS apparatus of the multi-hop relay system includes a receiver and a calculator. The r... | 04/19/2011 |
| 7928648 | Yellow light emitting Ce-activated silicate phosphor with new composition, manufacturing method thereof and white LEDs including phosphor The present invention relates to a phosphor and a white LED, more particularly, to a method for fabricating a yellow emitting Ce3+-activated silicate phosphor with a new composition represented as (Sr1-y-zMyNz)3-x | 04/19/2011 |
| 7927887 | Method of fabricating a dielectric-modulated field effect transistor comprising a biomolecules layer formed in a space where a sacrificial layer has been removed The present invention relates to a Field-Effect Transistor (FET) and, more particularly, to a Dielectric-Modulated Field-Effect Transistor (DMFET) and a method of fabricating the same. A DMFET according to an embodiment of the present invention comprises a substrate... | 04/19/2011 |
| 7927497 | Integrated thin-film solar cells and method of manufacturing thereof and processing method of transparent electrode for integrated thin-film solar cells and structure thereof, and transparent substrate having processed transparent electrode The present invention relates to integrated thin film solar cells, and more particularly, to integrated thin film solar cells, which minimize the loss of integrated solar cells caused at the time of a manufacturing process and become available at a low cost process,... | 04/19/2011 |
| 7923163 | Structure of bipolar plate for direct methanol fuel cell and shape of flow path thereof and fuel cells including them The present invention relates to the structure of a bipolar plate for direction methanol fuel cell, the shape of a flow path and a fuel cell including them, more particularly, to the structure of a bipolar plate for direct methanol fuel cell using a flow path with a... | 04/12/2011 |
| 7920797 | Receiver having an apparatus for varying decision threshold level and an optical transmission system having the same The disclosure relates to an optical receiver having an apparatus for varying decision threshold level and an optical transmission system having the same. An optical receiver having an apparatus for varying decision threshold level includes a photo diode (PD) for re... | 04/05/2011 |
| 7830840 | Apparatus and method for implementing SDMA in multi-user multi-antenna system An apparatus and method for implementing SDMA in a multi-user multi-antenna system are provided, in which SDMA users are selected from among total users according to channel state information of the total users, and the number of transmission streams to be allocated... | 11/09/2010 |
| 7787276 | Memory array using mechanical switch and method for operating thereof A method for controlling a memory array using a mechanical switch according to the present invention, in which the memory array comprises; a plurality of word lines; a plurality of bit lines intersecting each other with the plurality of word lines; a gate electrode ... | 08/31/2010 |
| 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... | 07/27/2010 |
| 7754549 | Method of manufacturing thin film transistor array panel A method of manufacturing a thin film transistor array panel includes forming an amorphous silicon film on an insulating substrate; forming a sacrificial film having an embossed surface on the amorphous silicon film; contacting a metal plate with the sacrificial fil... | 07/13/2010 |
| 7745177 | Method for manufacturing xylitol with high-yield and high-productivity The present invention provides a method for manufacturing xylitol with high-yield and high-productivity by using a xylitol dehydrogenase-deficient mutant of xylitol producing microorganism. This goal is achieved through modification of the metabolic pathway of the x... | 06/29/2010 |
| 7744947 | Method of forming carbon nanotube on semiconductor substrate, method of forming semiconductor metal wire using the same, and method of fabricating inductor using the same A method of fabricating a semiconductor device by filling carbon nanotubes in a recess is disclosed. The method of fabricating the semiconductor device comprises patterning a mold on a substrate, coating carbon nanotubes on an entire surface of the recess and the mo... | 06/29/2010 |
| 7738510 | Digital communication method and system This invention is concerned with a transmission control method and apparatus in a collision interval for a collision of multidimensional hopping patterns. In the present invention, each orthogonal wireless resource in the coordinate of the multidimensional orthogona... | 06/15/2010 |
| 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... | 05/04/2010 |
| 7706351 | Apparatus and method for transmitting an uplink signal in a mobile communication system using an OFDMA scheme Disclosed is a method for transmitting an uplink signal by a mobile station in a mobile communication system using an OFDMA scheme. The method includes estimating a downlink channel status by using a signal received from a base station; determining a precoding matri... | 04/27/2010 |
| 7596317 | Long-reach wavelength division multiplexing passive optical networks by using the position adjustment of broadband light source An optical network system includes a central office (CO) comprising an A-band BLS to be injected into a light source for downstream signals, an A-band BLS coupling device for coupling the A-band BLS, a first wavelength-division multiplexer/demultiplexer connected to... | 09/29/2009 |
| 7589457 | Nondestructive reliability monitoring method for adhesively bonded structures whose sensitivity is improved by using piezoelectric or conductive materials A method is disclosed for testing bonded part integrity of bonded structures with increased sensitivity and in a nondestructive manner. The method includes the steps of: mixing a piezoelectric material or an electrically conductive material with an adhesive agent, c... | 09/15/2009 |
