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| 20090127434 | IMAGE SENSOR WITH EXPANDING DYNAMIC RANGE - A conventional image sensor has a narrow dynamic range, so that the conventional image sensor has the limitation of not representing very dark portions or very bright portions depending on the exposure time when representing an image having such dark and bright portions. The present invention provides an image sensor including at least two storage units for respectively storing at least two image signals; a first switch unit for performing switching applied image signals to be respectively stored in the at least two storage units; and a second switch unit respectively connected to the at least two storage units and for equalizing the image signals stored in the at least two storage units. | 05-21-2009 |
| 20100034265 | APPARATUS AND METHOD FOR ENCODING AND DECODING HIGH FIDELITY VIDEO, AND COMPUTER-READABLE STORAGE MEDIUM - Provided are an apparatus and a method for encoding a high fidelity video, and an apparatus and a method for decoding a high fidelity video. A video encoding method for encoding first to third planes having different color components includes performing intra prediction in the first plane or inter prediction between each frame for a block of the first plane, and generating a first residue corresponding to a difference between the block of the first plane and the predicted block of the first plane, predicting a block of the second plane using a reconstructed pixel peripheral to the block of the second plane and a reconstructed pixel peripheral to the block of the first plane corresponding to the reconstructed pixel peripheral to the block of the second plane, and generating a second residue corresponding to a difference between the block of the second plane and the predicted block of the second plane, predicting a block of the third plane using a reconstructed pixel peripheral to the block of the third plane and any one of a reconstructed pixel peripheral to the block of the first plane corresponding to the reconstructed pixel peripheral to the block of the third plane and a reconstructed pixel peripheral to the block of the second plane corresponding to the reconstructed pixel peripheral to the block of the third plane, and generating a third residue corresponding to a difference between the block of the third plane and the predicted block of the third plane, and encoding the first to third residues. | 02-11-2010 |
| 20100166067 | Method for Prediction Coding Using Scalable Video Codec - Provided is a method for prediction coding using scalable video codec, which can support various chrominance spaces. A method for prediction coding includes setting a target layer based on corresponding device information on a specific image service request, performing a chrominance space conversion on an image signal of a base layer using a chrominance space conversion equation preset in a scalable video codec selectively according to whether a chrominance space conversion is necessary in prediction coding between the base layer and the target layer, and performing inter-layer prediction coding through an additional signal conversion based on necessary any one of spatial scalability, chroma-format scalability and bit-depth scalability. | 07-01-2010 |
| 20110170592 | METHOD FOR EFFICIENTLY ENCODING IMAGE FOR H.264 SVC - An efficient image encoding method for H.264 SVC is provided. When a base layer macroblock mode MODE | 07-14-2011 |
| 20110195196 | METHOD FOR MANUFACTURING TRANSPARENT OXIDE ELECTRODE USING ELECTRON BEAM POST-TREATMENT - The present invention relates to a method for manufacturing a transparent oxide electrode using an electron beam post-treatment. The method for manufacturing a transparent oxide electrode comprises the steps of: (a) forming a thin film for the transparent anode on a substrate; and (b) irradiating an electron beam to the surface of the thin film for the transparent oxide electrode. The method of the present invention is characterized in that no additional heat treatment process is performed after step (a). The method for manufacturing a transparent oxide electrode according to the present invention does not perform a high-temperature heat treatment process but rather performs a low-temperature electron beam irradiation process as a post-treatment, thus obtaining a transparent oxide electrode having excellent characteristics in case where the substrate is made of glass, Pyrex, quartz or even a polymer material which has a low resistance against heat. | 08-11-2011 |
| 20110199027 | ELECTRON BEAM GENERATOR HAVING ADJUSTABLE BEAM WIDTH - The present invention relates to an electron beam generator with an adjustable beam width. Said electron beam generator comprises: a plasma generating chamber that generates and sustains plasma; an RF power-generating antenna disposed on the outer circumference of said plasma generating chamber; a primary grid mounted on the outlet of said plasma generating chamber; a secondary grid placed at a fixed distance away from said primary grid; a beam width controller comprising an inlet, an outlet and a hollow inside, wherein the inlet is located on the side of said secondary grid, and the electron particles introduced through said inlet form electron beams of a pre-set beam width and are discharged through said outlet; and an RF shield ring disposed to surround the outer circumference of the inlet of said beam width controller. In the electron beam generator of the present invention, the electron particles discharged from said plasma generating chamber are delivered in the form of electron beams of a preset beam width to the outlet of said beam width controller. | 08-18-2011 |
| 20150099573 | GAME APPARATUS FOR DISCHARGING FREE GIFTS - Provided is a game apparatus for discharging free gifts. The game apparatus for discharging the free gifts, including: a betting button unit that sets betting sums of money; a gift showcase that includes two or more betting zones according to the betting sums of money, the betting zones in which the free gifts are displayed; lamps that enable the two or more betting zones to be distinguished from each other; an extruder that is driven to be moved forward or backward, in a direction (Z) in which the free gifts are displayed, within a plane located at an outer side of the gift showcase; and a control unit that controls the extruder to be moved to a betting zone corresponding to a betting sum of money set through the betting button unit. | 04-09-2015 |
| 20150287268 | MULTI-REEL GAME DEVICE AND METHOD OF CONTROLLING SAME - Disclosed are a multi-reel game device and a method of controlling the same. The device of the present invention comprises three or more reel display parts arranged on a table for players to play a game simultaneously, and a control unit for driving the reels of the reel display parts simultaneously when the players have selected a betting amount, pressed the start button, or completed the betting time so as to allot a winning score according to a dividend rate to a player whose selected betting line shows at least a given number of the same symbols in the reel display part of the stopped reel, whereby a single table can provide a game connecting the players, thus making the game more interesting. | 10-08-2015 |
| 20160081979 | METHOD FOR SEPARATING THERAPEUTIC AGENT FOR CHRONIC MYELOGENOUS LEUKEMIA FROM BARK OF LIRIODENDRON TULIPIFERA L. - The present invention provides a method for separating and preparing a therapeutic agent for chronic myelogenous leukimeia capable of effectively inhibiting growth of T315I, which is known as a mutation of a BCR-ABL fusion gene that causes chronic myelogenous leukemia, comprising the steps of: 1) preliminary extracting by adding ethyl acetate to finely chopped bark of | 03-24-2016 |
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| 20090016436 | Method for Image Prediction of Multi-View Video Codec and Computer-Readable Recording Medium Thereof - In a method for image prediction of a multi-view video codec, a disparity vector value of a current macroblock is obtained and a corresponding macroblock is searched through the obtained disparity vector value. An intra prediction coding direction value of the searched macroblock is determined as an intra prediction coding direction value of the current macroblock. The current macroblock is coded/decoded through the determined intra prediction coding direction value. The coding efficiency can be increased by reducing a coding amount by omitting a process of obtaining an unnecessary disparity value by using a different-view intra prediction coding direction as a current-view intra prediction coding direction. The coding efficiency can be increased by reducing a coding amount by differentially coding a similar disparity vector. The reliability can be increased through an accurate disparity using multiples of 8 rather than 16, in motion skip for sharing the format of a macroblock. | 01-15-2009 |
| 20110110426 | METHOD AND APPARATUS FOR SCALABLE VIDEO CODING - A scalable video coding method is provided. The scalable video coding method includes dividing an enhancement layer into macroblocks; when base_mode_flag or residual_prediction_flag of the macroblock is equal to 1, calculating a reference block coordinate value of a reference layer to refer to in the block up-sampling of the enhancement layer and up-sampling the macroblocks of the enhancement layer using the coordinate value; and coding the up-sampled macroblock. The execution speed of the scalable video codec can be raised and the memory usage required for the spatial inter-layer prediction of the scalable video can be saved. | 05-12-2011 |
| 20120291052 | MULTIMEDIA DATA PROCESSING METHOD - Disclosed is a multimedia data processing method by a framework, in which the framework is capable of directly controlling data input and output of components in a state of the framework being interposed between the components and an application program, thereby reducing the time and effort involved in developing the components or the application program. | 11-15-2012 |
| 20120299929 | MULTIMEDIA-DATA-PROCESSING METHOD - The present invention relates to a multimedia-data-processing method which enables a media graph to always be constructed in a “connection without negotiation” manner, on the basis of an already known media graph construction, and thus provides a media framework in which procedures for connecting components are minimized, thereby improving the performance of a system and satisfying the requests of an OS platform builder and a media application developer. The multimedia-data-processing method of the present invention is performed by a multimedia framework, and comprises: (a) a step of receiving component information required for the construction of the media graph and component connection information from a media application; and (b) a step of ensuring that the media graph is constructed by the content received in step (a), and that the media graph waits for a rendering command, thereby eliminating the necessity of permitting the media application to check the construction of the media graph. | 11-29-2012 |
| 20130021440 | DATA CODEC METHOD AND DEVICE FOR THREE DIMENSIONAL BROADCASTING - Disclosed are a data modulation method and a data modulation system for 3D broadcasting, and more particularly, are a method and a system for maintaining a conventional 2D broadcasting service while providing a 3D broadcasting service. A 3D broadcasting service method includes generating a data frame including existence or nonexistence of 3D data, a header including information on codec types of a left image and a right image, a right image stream, and a left image stream, and transmitting the generated data frame. | 01-24-2013 |
| 20140355680 | METHOD FOR IMAGE PREDICTION OF MULTI-VIEW VIDEO CODEC AND COMPUTER READABLE RECORDING MEDIUM THEREFOR - Provided are a method for image prediction of a multi-view video codec capable of improving coding efficiency, and a computer readable recording medium therefor. The method for image prediction of a multi-view video codec includes partitioning an image to a plurality of base blocks, acquiring information of reference images which are temporally different, acquiring information of reference images which have different views, and predicting a target block based on the acquired information. Accordingly, an image that is most similar to an image of a view to be currently compressed is generated using multiple images of different views, so that coding efficiency can be improved. | 12-04-2014 |
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| 20080242000 | WAFER-LEVEL-CHIP-SCALE PACKAGE AND METHOD OF FABRICATION - A wafer-level-chip-scale package and related method of fabrication are disclosed. The wafer-level-chip-scale package comprises a semiconductor substrate comprising an integrated circuit, a conductive ball disposed on the semiconductor substrate and electrically connected to the integrated circuit, and a protective portion formed from an insulating material and disposed on bottom and side surfaces of the semiconductor substrate. | 10-02-2008 |
| 20080258299 | Method of manufacturing a semiconductor device having an even coating thickness using electro-less plating, and related device - A method of manufacturing a semiconductor device includes forming a diffusion barrier layer on a substrate, and forming at least two features on the substrate such that the diffusion barrier layer is respectively disposed between each feature and the substrate and contacts the at least two features. A first impurity region of the substrate contains impurities of a first type, a second impurity region of the substrate contains impurities of a second type, different from the first type, a first feature of the at least two features is in the first impurity region, and a second feature of the at least two features is in the second impurity region, such that the second feature is electrically isolated from first feature by the different impurity regions. | 10-23-2008 |
| 20090122178 | CAMERA MODULE AND ELECTRONIC APPARATUS HAVING THE SAME - A camera module includes an image sensor chip, a lens structure, a transparent substrate, an adhesive portion, and a light blocking layer. The image sensor chip includes a light receiving area and a circuit area. The lens structure is positioned on the image sensor chip and configured to allow light to enter the image sensor chip. The transparent substrate is positioned between the image sensor chip and the lens structure, the transparent substrate allowing light from the lens structure to enter the light receiving area. The adhesive portion attaches the image sensor chip and the transparent substrate, and covers the circuit area. The light blocking layer is attached to the transparent substrate to block light from entering the circuit area. | 05-14-2009 |
| 20090256931 | Camera module, method of manufacturing the same, and electronic system having the same - A camera module, a method of manufacturing the same, and an electronic system having the same are provided. The camera module includes an image sensor chip having an active plane and a backside, a ground wiring extending from a sidewall of the image sensor chip to the backside, a lens structure having a light detector with at least one lens stacked on the active plane, and a conductive housing extending to the ground wiring along with an outer wall of the lens structure excluding the light detector. | 10-15-2009 |
| 20100320500 | METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE HAVING AN EVEN COATING THICKNESS USING ELECTRO-LESS PLATING AND RELATED DEVICE - A method of manufacturing a semiconductor device includes forming a diffusion barrier layer on a substrate, and forming at least two features on the substrate such that the diffusion barrier layer is respectively disposed between each feature and the substrate and contacts the at least two features. A first impurity region of the substrate contains impurities of a first type, a second impurity region of the substrate contains impurities of a second type, different from the first type, a first feature of the at least two features is in the first impurity region, and a second feature of the at least two features is in the second impurity region, such that the second feature is electrically isolated from first feature by the different impurity regions. | 12-23-2010 |
| 20130292822 | BUMP STRUCTURE, SEMICONDUCTOR PACKAGE HAVING THE BUMP STRUCTURE, AND METHOD OF FORMING THE BUMP STRUCTURE - A bump structure includes a first bump and a second bump. The first bump is disposed on a connection pad of a substrate. The first bump includes a lower portion having a first width, a middle portion having a second width smaller than the first width, and an upper portion having a third width greater than the second width. The second bump is disposed on the upper portion of the first bump. | 11-07-2013 |
| 20160005707 | SEMICONDUCTOR PACKAGE AND METHOD OF MANUFACTURING THE SAME - A semiconductor package includes a package board that includes an circuit pattern and a plurality of contact pads electrically connected to the circuit pattern; a semiconductor chip having a plurality of chip pads; and a bump structure including a plurality of connecting bumps electrically connected with the semiconductor chip and the circuit pattern and a plurality of gap adjusting bumps bonded to the semiconductor chip and shaped into a slender bar between the semiconductor chip and the package board, the gap adjusting bumps spacing the semiconductor chip from the package board such that a gap space, S, is maintained between the package board and the semiconductor chip. A method of fabrication and a memory unit are disclosed. | 01-07-2016 |
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| 20100108204 | ZIRCONIUM ALLOY COMPOSITION FOR NUCLEAR FUEL CLADDING TUBE FORMING PROTECTIVE OXIDE FILM, ZIRCONIUM ALLOY NUCLEAR FUEL CLADDING TUBE MANUFACTURED USING THE COMPOSITION, AND METHOD OF MANUFACTURING THE ZIRCONIUM ALLOY NUCLEAR FUEL CLADDING TUBE - Disclosed herein is a zirconium alloy composition for nuclear fuel cladding tubes, comprising: 1.6˜2.0 wt % of Nb; 0.05˜0.14 wt % of Sn; 0.02˜0.2 wt % of one or more elements selected from the group consisting of Fe, Cr and Cu; 0.09˜0.15 wt % of O; 0.008˜0.012 wt % of Si; and a balance of Zr, a nuclear fuel cladding tube comprising the zirconium alloy composition, and a method of manufacturing the nuclear fuel cladding tube. Since the nuclear fuel cladding tube made of the zirconium alloy composition can maintain excellent corrosion resistance by forming a protective oxide film thereon under the conditions of high-temperature and high-pressure cooling water and water vapor, it can be usefully used as a nuclear fuel cladding tube for light water reactors or heavy water reactors, thus improving the economical efficiency and safety of the use of nuclear fuel. | 05-06-2010 |
| 20100322370 | PROCESS OF MANUFACTURING ZIRCONIUM ALLOY FOR FUEL GUIDE TUBE AND MEASURING TUBE HAVING HIGH STRENGTH AND EXCELLENT CORROSION RESISTANCE - A process of manufacturing zirconium alloy. The process may be used to make a nuclear fuel guide tube and/or a measuring tube which are main components of a nuclear fuel assembly structure. While a nuclear fuel guide tube and a measuring tube are manufactured by performing three-step cold working, and intermediate and final thermal annealing from a semi-finished TREX shell in the conventional method, the present invention relates to zirconium alloy undergoing two-step cold working, and intermediate and final thermal annealing from a TREX shell, resulting in enhanced strength and corrosion resistance. The present invention may be applied to a nuclear fuel guide tube and a measuring tube used for a nuclear fuel assembly in a light water nuclear reactor because, by the shortened process, high percentage reduction in thickness between processes and an decrease in thermal annealing time may sustain high strength and excellent corrosion resistance, and achieve economy of manufacture by reducing the number of processes. | 12-23-2010 |
| 20120145287 | ZIRCONIUM ALLOY COMPOSITIONS HAVING EXCELLENT CORROSION RESISTANCE BY THE CONTROL OF VARIOUS METAL-OXIDE AND PRECIPITATE AND PREPARATION METHOD THEREOF - Disclosed herein are a zirconium alloy composition, which exhibits excellent corrosion resistance by varying the kinds of metal oxides and controlling the size of precipitates of the composition, including: 1.05˜1.45 wt % of Nb; one or more selected from the group consisting of 0.1˜0.7 wt % of Fe and 0.05˜0.6 wt % of Cr; and residual Zr, and a method of preparing the same. The zirconium alloy composition exhibits excellent corrosion resistance by controlling the kinds and amounts of the elements included in the zirconium alloy composition and the heat-treatment temperature and thus varying the kinds of metal oxides formed during an oxidation process and controlling the size of precipitates of the zirconium alloy, so that it can be usefully used as a raw material for nuclear fuel cladding tubes, spacer grids, nuclear reactor internals and the like of a light-water reactor or a heavy-water reactor in a nuclear power plant. | 06-14-2012 |
| 20130323844 | METHOD FOR DETECTION OF RADIATION-INDUCED DAMAGE TO BIOMATERIAL USING MAGNETIC SENSOR AND MAGNETIC SENSOR BIOCHIP FOR BIODOSIMETRY USING THE SAME - Disclosed is a method for the detection of radiation-induced damage on a biomaterial using a magnetic sensor, and a magnetic sensor biochip for biodosimetry. Designed to utilize a magnetic sensor in detecting damage to biomaterials in vitro, the method and magnetic sensor biochip can accurately determine the degree of damage irrespective of the self-recovery of the organism. Thanks to their high sensitivity, the method and biochip can detect the biomaterial damage by exposure to even a low dose of radiation. | 12-05-2013 |
| 20140294653 | MARTENSITIC OXIDE DISPERSION STRENGTHENED ALLOY WITH ENHANCED HIGH-TEMPERATURE STRENGTH AND CREEP PROPERTY, AND METHOD OF MANUFACTURING THE SAME - The present application discloses a martensitic oxide dispersion-strengthened alloy having enhanced high-temperature strength and creep properties. The alloy includes chromium (Cr) of 8 to 12% by weight, yttria (Y | 10-02-2014 |
| 20150252458 | FERRITIC/MARTENSITIC OXIDE DISPERSION STRENGTHENED STEEL WITH ENHANCED CREEP RESISTANCE AND METHOD OF MANUFACTURING THE SAME - Provided are a ferritic/martensitic oxide dispersion strengthened steel with increased high temperature creep resistance, including 0.02 to 0.2 wt % of carbon (C), 8 to 12 wt % of chromium (Cr), 0.1 to 0.5 wt % of yttria (Y | 09-10-2015 |
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| 20120279445 | SPLIT MASK AND ASSEMBLING APPARATUS FOR ASSEMBLING A MASK FRAME ASSEMBLY INCLUDING THE SPLIT MASK - Provided is a split mask including a stick main body in which a deposition pattern is formed, a clamping portion extending from opposing ends of the stick main body away from the stick main body, wherein the clamping portion includes a first clamping portion extending horizontally from the stick main body, and a second clamping portion extending diagonally from the stick main body. | 11-08-2012 |
| 20120282445 | MASK STICK AND METHOD OF ASSEMBLING A MASK FRAME ASSEMBLY BY USING THE MASK STICK - A mask stick including a main body part having a pattern formed therein, one or more side clamping parts extending from a side of the main body part, and a slant clamping part disposed adjacent an outermost one of the one or more side clamping parts, wherein an angle (θ) between the slant clamping part and the outermost side clamping parts is greater than 0° and less than 90° (0°<θ<90°). | 11-08-2012 |
| 20130314686 | MASK SUPPORT FRAME AND MASK ASSEMBLY HAVING THE SAME - A mask support frame for supporting a mask is provided. The frame is configured to secure both ends of a mask and apply tension to the mask in a first direction. The frame includes a frame main body defining an opening for exposing a patterned opening area of the mask and an end tensioner coupled to the frame main body, and configured to apply tension to one of both ends of the mask in a second direction crossing the first direction. | 11-28-2013 |
| 20140130735 | MASK ASSEMBLY FOR THIN FILM VAPOR DEPOSITION AND MANUFACTURING METHOD THEREOF - A mask assembly for a thin film deposition includes: a frame main body forming an opening; a plurality of unit masks having both ends fixed to the frame main body in a state that a tension force is applied in a first direction; and an end tension unit installed to the frame main body. The end tension unit moves according to a second direction crossing the first direction between two neighboring unit masks among a plurality of unit masks for tensioning of the unit mask in the second direction. | 05-15-2014 |
| 20150040826 | METHOD FOR MANUFACTURING METAL MASK - A method for manufacturing a metal mask includes defining pattern areas exposing an upper surface, and a lower surface opposite to the upper surface, of a thin plate; and etching the upper and lower surfaces of the thin film plate exposed by the pattern areas, to reduce a thickness of the thin film plate by a predetermined thickness and form deposition openings in the metal mask. The etching the upper and lower surfaces of the thin film plate includes both a wet-etching method and a dry-etching method. | 02-12-2015 |
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| 20110175626 | PORTABLE DEVICE WITH PROXIMITY SENSORS - A portable device with a proximity sensor is provided. The portable device with a proximity sensor of the present invention includes a shielding plate for shielding impedance applied in a direction opposite to the direction that the proximity sensor detects the proximity such that the proximity sensor is not affected by a change in the surrounding environment and can detect the proximity at the same sensitivity at all times. Moreover, when the portable device is placed upside down on a conductive surface that causes low impedance, a proximity sensor placed adjacent to the conductive surface is deactivated to prevent malfunction. | 07-21-2011 |
| 20110227823 | PUCK-TYPE POINTING APPARATUS, POINTING SYSTEM, AND POINTING METHOD - Provided are a puck-type pointing device, a pointing system including the same, and a pointing method thereof. The puck-type pointing device includes a movement detection unit detecting information regarding touch and movement of a puck by a touch object and outputting a movement detection signal, a first signal processing unit receiving the movement detection signal, removing noise, and outputting a first puck movement signal after a first period of time, a second signal processing unit receiving the movement detection signal, removing noise, and outputting a second puck movement signal after a second period of time which is shorter than the first period of time, and a puck movement signal transmitting unit transmitting or cutting off the first puck movement signal according to the movement information in response to the second puck movement signal. | 09-22-2011 |
| 20130199443 | DEVICE FOR MANUFACTURE INCLUDING A DEPOSITION MASK - A device for manufacture including a deposition mask includes a damper for fixing an end of a divided mask sheet and having a pin hole, a clamping pin in the clamper for being inserted into the pin hole, and an elevator for elevating the clamping pin. | 08-08-2013 |
| 20140331926 | MASK ASSEMBLY AND METHOD FOR FABRICATING THE SAME - A mask assembly includes a mask frame having frame openings formed thereon, and a plurality of unit masks fixed to the mask frame. The respective unit masks extend in a first direction, and at least one of the plurality of unit masks includes at least one of a one sided projection projecting to one side thereof and another sided projection projecting to another side thereof, at both end portions of the unit mask, in a second direction that crosses the first direction. | 11-13-2014 |
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| 20080259899 | Apparatus and method for uplink scheduling considering characteristic of power amplifier in mobile communication terminal - An UpLink (UL) scheduling method and apparatus considering a characteristic of a power amplifier in a mobile communication terminal are provided. The UL scheduling method includes calculating a packet transmission time, which minimizes energy consumed in packet transmission, by using a Direct Current (DC) voltage used in a power amplifier for signal amplification and by using nonlinear amplification efficiency; and scheduling UL data by using the calculated packet transmission time. | 10-23-2008 |
| 20090203335 | APPARATUS AND METHOD FOR PARTIAL ADAPTIVE TRANSMISSION IN MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM - An apparatus and method for partial adaptive transmission in a Multiple-Input Multiple-Output (MIMO) system are provided. The method includes estimating a correlation matrix between Transmit (Tx) antennas and an average Signal to Noise Ratio (SNR) and generating a long-term precoding matrix composed of a predetermined number of dominant eigen dimensions of the correlation matrix by using the estimated correlation matrix and average SNR. The apparatus and method provide a new adaptive MIMO transmission method capable of reducing the feedback information overhead and maximizing performance. | 08-13-2009 |
| 20110159825 | SIGNAL TRANSMISSION APPARATUS AND METHOD USING EIGEN ANTENNA TECHNIQUE IN WIRELESS COMMUNICATION SYSTEM - Disclosed are a signal transmission apparatus and method using a eigen antenna technique in a wireless communication system. The signal transmission apparatus according to one embodiment of the present invention relates to a signal transmission apparatus using a eigen antenna technique in a wireless communication system furnished with a plurality (N) of antennae, comprising: an antenna correlation estimate part that estimates correlation information among the antennae based on a signal received in a reverse channel; a group separation part that separates the plurality of antennae into antenna groups corresponding to the number (M) of transmission signals based on the estimated correlation information among the antennae and provides the information on the separated antenna groups; a gain adjustment part that adjusts the gain of each group antenna included in the antenna group based on the separated antenna group information; and a signal transmission part that transmits the pertinent signal via the antenna group for which the gain of the individual group antenna has been adjusted. | 06-30-2011 |
| 20110183692 | APPARATUS FOR REMOVING INTERFERENCE BETWEEN NEIGHBOR CELLS IN A RADIO COMMUNICATION SYSTEM, AND METHOD FOR SAME - The present invention relates to an apparatus for removing interference between neighbor cells in a radio communication system, and to a method for same. The apparatus according to the present invention includes a receiving unit which receives receiving power information and signal-to-noise ratio information of a neighbor cell base station from multiple receiving antennas, a first determination unit for determining the number of major neighbor cell interference signals by using the received receiving power information and the signal-to-noise ratio information, a second determination unit for determining a candidate signal vector of a target signal in accordance with the determined number of major neighbor cell interference signals, the received signal-to-noise ratio, and the number of the multiple receiving antennas, a third determination unit for determining a candidate signal matrix of the major neighbor cell interference signals on the basis of the determined candidate signal vector of the target signal, and an estimation unit for estimating signals transmitted from the target base station or the neighbor base station by applying the determined candidate signal matrix of the major neighbor cell interference signals to the method of maximum likelihood. Whereby, the present invention removes interference between neighbor cells in an efficient manner, maintains the performance thereof, and reduces complexity at the receiving end. | 07-28-2011 |
| 20110194509 | APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING SOUNDING SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - In a wireless communication system, at least one sounding subchannel determining parameter is transmitted from a sounding signal receiving apparatus to a sounding signal transmitting apparatus. A sounding subchannel for the sounding signal transmitting apparatus is allocated according to the sounding subchannel determining parameter. A sounding signal is received from the sounding signal transmitting apparatus over the allocated sounding subchannel. The sounding subchannel determining parameter is determined for allocating a sounding subchannel considering a frequency correlation. | 08-11-2011 |
| 20110261675 | CHANNEL INFORMATION GENERATING DEVICE AND METHOD FOR SPATIAL DIVISION MULTIPLEXING ALGORITHM IN A WIRELESS COMMUNICATION SYSTEM, AND DATA TRANSMISSION APPARATUS AND METHOD ADOPTING THE SAME - Disclosed are a channel information generating device and a method for spatial division multiplexing algorithm in a wireless communication system and data transmission apparatus and a method adopting the same. According to one embodiment of the present invention, a channel information generating device for space division multiplexing algorithm in an orthogonal frequency division multiplexing (OFDM)-based wireless communication system using multi-input/multi-output (MIMO) antennas comprises: a codebook storage where pre-defined codebooks are stored; a channel correlation information calculator which receives channel information corresponding to each of the sub-carriers and calculates information on a channel correlation coefficient between the sub-carriers, based on the received channel information; an index calculator which calculates an index of an optimal matrix out of the matrices stored in the codebook storage, based on the channel information, the channel correlation coefficient information and the codebook; and a transmission section which transmits to an opponent transmitter the channel correlation coefficient information and index information on the optimal matrix. | 10-27-2011 |
| 20110261861 | APPARATUS AND METHOD FOR AVOIDING INTERFERENCE NOISE IN FHSS SYSTEM - Disclosed are an apparatus and a method for reducing the effect of an interference signal present in the same channel in a frequency hopping spread spectrum (FHSS) system. The apparatus of the present invention comprises: a group classification part for classifying the entire channels of the FHSS system into a certain number of groups according to the channel bandwidth unit of an FS interference signal; an FS interference elimination part for eliminating a group in which an FS interference exists from said certain number of groups based on the packet error rate (PER) of said certain number of groups that have been classified; and an FD interference avoidance part for avoiding interference by transmitting a packet only if an interference signal does not exist by estimating the existence of said FD interference signal based on a time sequence with respect to the channel to be used for the next frequency hopping (FH), when transmitting a signal by utilizing FH using channels wherein said FS interference signal does not exist. Thus, the present invention enables further shortening of the time taken for FS interference avoidance, and efficient avoidance of FD interference, thereby being capable of obtaining enhanced transmission performance. | 10-27-2011 |
| 20120321017 | TRANSMISSION BEAMFORMING METHOD AND APPARATUS IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING-BASED MIMO WIRELESS SYSTEM - The present invention relates to a transmission beamforming method and apparatus in an orthogonal frequency division multiplexing (OFDM)-based MIMO wireless system. In particular, the present invention relates to a transmission beamforming method in an OFDM-based MIMO wireless system and an apparatus therefor, wherein the transmission beamforming method comprises: estimating a channel from a received pilot signal and obtaining time for the estimating channel and 2D channel correlation information of a frequency band; obtaining estimated channel information based on the channel correlation information; obtaining differential information that represents a difference between the current channel and the estimated channel and quantizing the differential information; and generating a transmission beam weight by using a predefined code book from the quantized differential information. The present invention may also provide a method and apparatus for reducing the channel quantization error and feedback load by employing the OFDM-based MIMO in a wireless communication system using a transmission beamforming scheme, wherein a receiver estimates current channel information by using time and 2D channel correlation information of a frequency based on the previous channel information, compares the estimated current channel information with an actual channel and then feeds back the differential channel information, i.e., the difference between the estimated channel and the actual channel, to a transmitter. | 12-20-2012 |
| 20130003666 | RESOURCE ALLOCATION METHOD AND APPARATUS OF HETEROGENEOUS CELLULAR COMMUNICATION SYSTEM - A resource allocation method and an apparatus for mitigating inter-cell interference in the heterogeneous cellular communication system are provided. The method for a first type base station to allocate resource in a wireless communication system including the first and second types base stations according to the present invention includes estimating an available Frequency Assignment (FA) not used by a neighbor second type terminal among FAs used by the first type base station, and allocating sub-channels associated with one of the available FAs not used by the neighbor second type terminal to a first type terminal, wherein the second type base station allocates the sub-channels for uplink and downlink transmissions of the second type terminal over a predetermined time period such that an FA in which sub-channels for the uplink transmissions are allocated and the FA in which sub-channels for the downlink transmissions are allocated are the same. | 01-03-2013 |
| 20130034177 | METHOD AND APPARATUS FOR ESTIMATING CHANNEL USING DEDICATED PILOT SIGNAL IN OFDM-BASED WIRELESS COMMUNICATION SYSTEM - The invention relates to a method for channel estimation using a dedicated pilot signal in an OFDM-based communication system with multi-antenna transmission techniques. The receiver estimates the statistical characteristics of a virtual channel generated by beamforming by exploiting the statistical characteristics of common pilot channel, determines the optimum dedicated pilot pattern, and estimates the channel from dedicated pilot signal transmitted in an optimum pattern by means of AMMSE interpolation. The invention minimizes the channel estimation error by exploiting the statistical characteristics of the virtual channel, and optimally determines the dedicated pilot pattern according to the operation environment to maximize the transmission performance in terms of the pilot signaling overhead and the channel estimation error. In particular, the invention is very effective in low signal-to-interference plus noise power ratio (SINR) operation environments. | 02-07-2013 |
| 20130083685 | METHOD FOR DIFFERENTIALLY QUANTIZING CHANNEL INFORMATION IN MULTI-ANTENNA WIRELESS SYSTEMS AND SYSTEM ADOPTING THE SAME - A method of signal transmission based on differentially quantized channel information in a multi-antenna wireless communication system which can transmit signal to multiple mobile stations simultaneously through multiple transmit antennas includes a main codebook reporting step of each mobile station for quantizing channel correlation information (CCI) using a main-codebook and reporting an index of the main codebook, which corresponds to the quantized CCI, to a base station. A sub-codebook reporting step of each mobile station for quantizing the change of the CCI between the quantization interval using a sub-codebook and reporting an index of the sub-codebook, which corresponds to the quantized CCI change, to a base station. A multi-user eigen-beam transmission step of the base station for generating multiple eigen-beams using the index of the main-codebook or sub-codebook reported from mobile stations and transmitting them to multiple users simultaneously. | 04-04-2013 |
| 20130182602 | Method For Transmitting A Signal While Avoiding The Influences Of An Interference Signal Existing In The Same Channel In A Communication System Having A Main Communication Device And A Plurality Of Terminal Communication Devices - The method for transmitting a signal while avoiding the influences of an interference signal in the same channel according to the present invention comprises: a process in which communication devices in the communication system perceive, in a distributed manner, whether or not an interference signal exists in a transmission channel being used; a process in which the communication devices in the communication system temporarily transceive signals using a plurality of available transmission channels other than the transmission channel currently being used so as to avoid an interference signal if the interference signal is perceived; and a process of determining the channel having a best link state as a transmission channel from among the plurality of used transmission channels and returning to an existing transmission system using a single channel. | 07-18-2013 |
| 20130251001 | Interference Signal Avoiding Device of a Frequency Hopping Spread System and Method Thereof - An interference signal avoiding device of a frequency hopping spread system and a method thereof are disclosed. A method of transmitting/receiving an interference signal avoiding signal according to the present invention includes: determining a frequency hopping channel set and a parameter of an interference signal detector in consideration of characteristics of an interference signal; detecting whether there is an interference signal with respect to frequency hopping candidate channels that are to be used for the next frequency hopping by using the determined interference signal detector; transmitting a signal through a channel that is determined by the interference signal detector that there is no interference signal among the frequency hopping candidate channels; and searching a channel through which the signal is transmitted from the frequency hopping candidate channels in order to receive the transmitted signal. | 09-26-2013 |
| 20150036545 | Self-Construction System of Wireless Sensor Network and Method for Self-Construction of Wireless Sensor Network Using the Same - Disclosed is a self-construction system of a wireless sensor network, and a method for self-construction of a wireless sensor network using the same. Also disclosed is a method for self-construction of a cluster tree structure-based wireless sensor network (WSN). The present invention can connect devices distributed densely in a wide area to a network while maintaining the advantages of a conventional tree-structured network, such as the reduction of time required for network construction, traffic by the exchange of control command messages, and a load for a routing path search, and thus can provide a WSN having an improved self-construction performance. | 02-05-2015 |
| 20150215092 | Data Signal Transmitting Method and Data Signal Receiving Method in Wireless Communication System - Provided is data signal transmitting method and data signal receiving method in a wireless communication system. A method of transmitting and receiving data signal in a wireless communication system by changing a transmission speed and a payload size included in the data signal according to an operation environment is disclosed. | 07-30-2015 |
| 20150350022 | A Method of Network Subscription in a Wireless Network - Provided is a method of subscribing, by a terminal, to a network as a router or an end device in a wireless network (WN) having a tree structure including routers and end devices. Each router receives, from a parent router thereof, addresses which are usable independently for child routers and child end devices thereof, and classifies the addresses into a general address and a special address. A terminal wishing to subscribe to a network may subscribe to the network by using a special address of an end device, only when the terminal is unable to subscribe to the network by using a general address of the end device, thereby reducing depletion of addresses to be used for terminal subscription and facilitating network subscription of the end device. | 12-03-2015 |
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| 20100225637 | DISPLAY DRIVING SYSTEM WITH MONITORING UNIT FOR DATA DRIVER - A display driving system includes a timing controller configured to receive a data signal composed of image data and generate a control signal such as a clock signal; an interface configured to transmit the data signal and the control signal to a plurality of data drivers; the data drivers configured to receive the data signal and the control signal through the interface and supply received signals to a display panel to display an image; and a monitoring unit configured to feed back LOCK signals indicative of state information of the data drivers to the timing controller such that the data drivers can be monitored. | 09-09-2010 |
| 20110181558 | DISPLAY DRIVING SYSTEM USING TRANSMISSION OF SINGLE-LEVEL SIGNAL EMBEDDED WITH CLOCK SIGNAL - A display driving system includes a timing control section having an LVDS receiving unit for receiving data signals, a data processing unit for temporarily storing the data signals, processing the data signals and outputting processed data signals, a timing generation unit for generating clock signals and timing control signals, and a transmission unit for transmitting the data signals; and a panel driving section having row driving units for sequentially emitting gate signals toward a display panel and column driving units for receiving the signals transmitted through signal lines from the transmission unit and supplying the received signals to the display panel. In the timing control section, the transmission unit has driving parts which embed the clock signals between the data signals at the same level and generate and output single level transmission data. | 07-28-2011 |
| 20110242066 | DISPLAY DRIVING SYSTEM USING SINGLE LEVEL DATA TRANSMISSION WITH EMBEDDED CLOCK SIGNAL - A display driving system using single level data transmission with embedded clock signals. The display driving system is configured to embed a clock signal of the same level between data signals and transmit these signals as a single level signal, wherein a cycle at which clock signals are embedded is controlled and a data format is constructed such that a control data transmission step can be extended over 2 words. | 10-06-2011 |
| 20110286562 | RECEIVER HAVING CLOCK RECOVERY UNIT BASED ON DELAY LOCKED LOOP - A receiver for receiving an input signal (a clock-embedded data (CED) signal), in which a clock signal is periodically embedded between data signals, includes a clock recovery unit configured to recover and output the clock signal and a serial-to-parallel converter configured to recover and output a data signal. The input signal (the CED signal) comprises a single level signal in which the clock signal is periodically embedded between the data signals at the same level. The clock recovery unit is configured based on a delay locked loop (DLL) without using an internal oscillator for generating a reference clock signal. | 11-24-2011 |
| 20120194224 | PRE-EMPHASIS CIRCUIT AND DIFFERENTIAL CURRENT SIGNALING SYSTEM HAVING THE SAME - Provided is a pre-emphasis circuit which transmits a pre-emphasis output current to an output node of an output driver in response to first to fourth pre-emphasis control signals generated by a logical operation on differential input signals. The pre-emphasis circuit includes: a first pre-emphasis circuit driven in a range between a first voltage and a second voltage and configured to generate a first pre-emphasis output current in response to the first and second pre-emphasis control signals and output the generated first pre-emphasis output current to a first output node of the output driver; and a second pre-emphasis circuit driven in the range between the first voltage and the second voltage and configured to generate a second pre-emphasis output current in response to the third and fourth pre-emphasis control signals and output the generated second pre-emphasis output current to a second output node of the output driver. | 08-02-2012 |
| 20120306551 | CIRCUIT AND METHOD FOR PREVENTING FALSE LOCK AND DELAY LOCKED LOOP USING THE SAME - The present invention relates to a false lock prevention circuit and method which is used to cause a delayed locked loop (DLL) to escape from false lock such as harmonic lock or stuck lock, when the false lock occurred in the DLL, and a DLL using the same. The false lock prevention circuit includes a harmonic lock detector configured to detect harmonic lock and a stuck lock detector configured to detect stuck lock. The harmonic lock detector includes a plurality of flip-flops configured to sample a plurality of delayed clocks and a logic unit. The harmonic lock detector compares a reference clock signal with the plurality of delayed clock signals, and detects whether or not the positive edges deviate from one cycle of the reference clock signal. | 12-06-2012 |
| 20130278591 | EMBEDDED DISPLAYPORT SYSTEM AND METHOD FOR CONTROLLING PANEL SELF REFRESH MODE - Provided are an embedded DisplayPort (eDP) system and a method for controlling a panel self refresh mode. The eDP system enters a panel self refresh (PSR) mode when an image to display is static in a general mode, and a sink device recovers a stream clock for displaying a static image in the PSR mode. | 10-24-2013 |
| 20140184291 | CIRCUIT FOR CONTROLLING VARIATION IN FREQUENCY OF CLOCK SIGNAL - Disclosed herein is a circuit for controlling a variation in the frequency of a clock signal for blocking an unwanted variation in the frequency of the clock signal. When a frequency variation out of a set range is generated in a reference clock signal in the state in which the phases of the reference clock signal and a feedback clock signal have been locked, a control voltage for generating the feedback clock signal remains constant so that an abrupt variation generated in the frequency of the feedback clock signal is blocked. | 07-03-2014 |
| Patent application number | Description | Published |
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| 20100090208 | THIN FILM TRANSISTOR SUBSTRATE, METHOD OF MANUFACTURING THE SAME, AND DISPLAY APPARATUS HAVING THE SAME - In a method of manufacturing a thin film transistor substrate, a semiconductor pattern is formed on a substrate, a first etch stop layer and a second etch stop layer are sequentially formed on the semiconductor pattern, and the second etch stop layer and the first etch stop layer are sequentially patterned to form a second etch stop pattern and a first etch stop pattern. Thus, when the second etch stop layer is patterned using an etchant, the first etch stop layer covers the semiconductor pattern, thereby preventing the semiconductor pattern from being etched by the etchant. | 04-15-2010 |
| 20100090222 | THIN FILM TRANSISTOR; METHOD OF MANUFACTURING SAME; AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE THIN FILM TRANSISTOR - A thin film transistor according to one or more embodiments of the present invention includes: an insulation substrate; a gate electrode formed on the substrate; a gate insulating layer formed on the gate electrode; a semiconductor formed on the gate insulating layer and having a pair of openings facing each other; ohmic contact layers formed in the openings and including a conductive impurity; and a source electrode and a drain electrode in contact with their respective ohmic contact layers. An organic light emitting device in accordance with an embodiment includes: a first signal line and a second signal line intersecting each other on an insulation substrate; a switching thin film transistor connected to the first signal line and the second signal line; a driving thin film transistor connected to the switching thin film transistor; and a light emitting diode (LED) connected to the driving thin film transistor. | 04-15-2010 |
| 20100096638 | THIN FILM TRANSISTOR SUBSTRATE, METHOD OF MANUFACTURING THE SAME, AND DISPLAY APPARATUS HAVING THE SAME - A thin film transistor substrate that includes a substrate, first and second gate electrodes that are formed on the substrate, a gate insulating layer that is formed on the first and second gate electrodes, a first semiconductor and a second semiconductor that are formed on the gate insulating layer, and that overlap the first gate electrode and the second gate electrode, respectively, a first source electrode and a first drain electrode that are formed on the first semiconductor, and positioned opposed to and spaced from each other, a source electrode connected to the first drain electrode and a second drain electrode positioned opposed to and spaced from the second source electrode, wherein the second source and second drain electrodes are formed on the second semiconductor, and a pixel electrode that is electrically connected to the second drain electrode, a method of manufacturing the same, and a display apparatus having the same. | 04-22-2010 |
| 20100117531 | ORGANIC LIGHT EMITTING DEVICE AND MANUFACTURING METHOD THEREOF - The present invention relates to an organic light emitting device and a manufacturing method thereof. An organic light emitting device includes a first substrate, a thin film structure disposed on the first substrate, a second substrate comprising an inner surface and an outer surface, a first sealing member disposed between the first substrate and the second substrate, the first sealing member comprising an inner surface and an outer surface, and a second sealing member disposed on the outer surface of the second substrate. | 05-13-2010 |
| 20120267635 | THIN FILM TRANSISTOR SUBSTRATE, METHOD OF MANUFACTURING THE SAME, AND DISPLAY APPARATUS HAVING THE SAME - In a method of manufacturing a thin film transistor substrate, a semiconductor pattern is formed on a substrate, a first etch stop layer and a second etch stop layer are sequentially formed on the semiconductor pattern, and the second etch stop layer and the first etch stop layer are sequentially patterned to form a second etch stop pattern and a first etch stop pattern. Thus, when the second etch stop layer is patterned using an etchant, the first etch stop layer covers the semiconductor pattern, thereby preventing the semiconductor pattern from being etched by the etchant. | 10-25-2012 |
