Patent application number | Description | Published |
20120133685 | LOCAL DIMMING METHOD AND LIQUID CRYSTAL DISPLAY - A local dimming method and a liquid crystal display using the same are provided. The local dimming method includes segmenting an input image into N×M (where N and M are positive integer greater than n) blocks; determining representative values of the blocks, which define average luminance of the respective blocks; analyzing the input image; setting a spatial filter mask having a size of n×n (where n is a positive integer greater than 3 and equal to or smaller than 10), increasing the number of coefficients greater than 0 in the spatial filter mask when the input image is determined as a dark image, and decreasing the number of coefficients greater than 0 in the spatial filter mask when the input image is determined as a bright image; and multiplying the block representative values by coefficients of the spatial filter mask to determine a dimming value for each block. | 05-31-2012 |
20120154385 | STEREOSCOPIC IMAGE DISPLAY - A stereoscopic image display includes a display panel, which displays a left eye image on odd-numbered lines and displays a right eye image on even-numbered lines, a patterned retarder including a first retarder passing through first polarized light of the left eye image and a second retarder passing through second polarized light of the right eye image, polarized glasses including a left eye polarizing filter and a right eye polarizing filter, and a 3D formatter, which receives 3D image data from a host system, assigns left eye image data of the 3D image data to the odd-numbered lines, and assign right eye image data of the 3D image data to the even-numbered lines. | 06-21-2012 |
20130009976 | LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME - An LCD device and a driving method thereof are provided. The LCD device includes a panel, a timing controller, and a backlight unit. The panel is driven by a data driver and a gate driver. The timing controller controls the data driver and the gate driver. The backlight unit turns on or off a light source according to a dimming control signal transferred from the timing controller. The backlight unit is configured such that a turn-off delay time of a light source turned off according to the dimming control signal is shorter than a turn-on delay time of a light source turned on according to the dimming control signal. | 01-10-2013 |
Patent application number | Description | Published |
20110122057 | LIQUID CRYSTAL DISPLAY AND LOCAL DIMMING CONTROL METHOD OF THEREOF - A liquid crystal display includes a liquid crystal display panel, a backlight unit including a plurality of light sources, a backlight driving circuit that individually drives a plurality of previously determined blocks each including the light sources based on a dimming value of each of the blocks, and a local dimming control circuit. The local dimming control circuit adjusts the dimming value of each block based on the result of an analysis of input data, calculates and interpolates sampling gain values of predetermined sampling positions positioned inside each block so as to compensate for a change amount of a luminance resulting from the dimming value of each block, obtains a gain value of each pixel, and modulate the input data to be applied to a corresponding pixel based on the gain value of each pixel. | 05-26-2011 |
20110122170 | METHOD OF COMPENSATING FOR PIXEL DATA AND LIQUID CRYSTAL DISPLAY - A method of compensating for pixel data includes extending a side portion and a corner portion of a real screen to set an virtual screen, setting dimming values of the virtual screen using dimming values of the real screen, calculating an amount of light of each of pixels on the real screen using the dimming values of the virtual screen mapped to a predetermined analysis area, and multiplying the amount of light of each pixel by a gain of each pixel to modulate pixel data. | 05-26-2011 |
20120086713 | LIQUID CRYSTAL DISPLAY AND LOCAL DIMMING CONTROL METHOD THEREOF - A liquid crystal display and a local dimming control method thereof are discussed. The liquid crystal display includes a liquid crystal display panel selectively displaying a 2D image and a 3D image in response to a mode signal, a backlight unit including a plurality of light sources, a backlight driving circuit individually driving a plurality of previously determined blocks each including the light sources based on a dimming value of each block, and a local dimming control circuit, that calculates a pixel gain value based on a dimming value of each block in a first frame, applies the pixel gain value to a data compensation for a second frame, which is arranged later than the first frame, and varies a time point when the pixel gain value for the data compensation is applied in response to the mode signal. | 04-12-2012 |
20120147001 | IMAGE PROCESSING UNIT, STEREOSCOPIC IMAGE DISPLAY USING THE SAME, AND IMAGE PROCESSING METHOD - An image processing unit, a stereoscopic image display using the same, and an image processing method are disclosed. The image processing unit includes a data modulation unit, that receives 3D image data including left eye image data and right eye image data, compares a pixel data of the left eye image and a pixel data of the right eye image corresponding to the same coordinate of the previously set mask with each other, calculates the number of cases where a difference between the same pixel data of the left eye image data and the right eye image data is equal to or greater than a predetermined threshold value, and modulates the pixel data of the left eye image and the pixel data of the right eye image inside the mask using a first coefficient group of the mask when the number of cases is greater than a predetermined value. | 06-14-2012 |
20150029084 | METHOD OF COMPENSATING FOR PIXEL DATA AND LIQUID CRYSTAL DISPLAY - A method of compensating for pixel data includes extending a side portion and a corner portion of a real screen to set an virtual screen, setting dimming values of the virtual screen using dimming values of the real screen, calculating an amount of light of each of pixels on the real screen using the dimming values of the virtual screen mapped to a predetermined analysis area, and multiplying the amount of light of each pixel by a gain of each pixel to modulate pixel data. | 01-29-2015 |
Patent application number | Description | Published |
20100105816 | OPTICALLY ANISOTROPIC COMPOUND AND RESIN COMPOSITION COMPRISING THE SAME - Disclosed is a silicon containing compound represented by Formula 1 which has high optical anisotropy and high compatibility with a polymer resin. Also, a resin composition including the compound and a polymer resin, and an optical member including the resin composition are disclosed. Since the silicon containing compound represented by Formula 1 has high compatibility with a polymer resin and high optical anisotropy, in the case of an optical member obtained by using a polymer resin composition including the silicon containing compound, there is no phase separation, and it is possible to achieve a required optical characteristic with only a small amount thereof. | 04-29-2010 |
20100118232 | POLYMERIZABLE LIQUID CRYSTAL COMPOSITION AND OPTICAL FILM AND DEVICE USING THE SAME - Disclosed is a polymerizable liquid crystal composition which is applicable on a supporting substrate, such as a transparent plastic film for optical use, or glass, etc., and has a homeotropic alignment. Also, disclosed is an optical film obtained by aligning and fixing the polymerizable composition on a substrate. | 05-13-2010 |
20100130659 | OPTICALLY ANISOTROPIC COMPOUND AND RESIN COMPOSITION COMPRISING THE SAME - Disclosed is a compound having high optical anisotropy and high compatibility with a polymer resin, which is represented by Formula 1 and has at least one substituent introduced to a biphenyl mesogenic core. Also, a resin composition including the compound and a polymer resin, and an optical member including the resin composition are disclosed. In the case of an optical member obtained by using a polymer resin composition including the compound represented by Formula 1, there is no phase separation, and it is possible to achieve a required optical characteristic with only a small amount thereof. | 05-27-2010 |
20100137484 | OPTICALLY ANISOTROPIC COMPOUND AND RESIN COMPOSITION COMPRISING THE SAME - Disclosed is a compound having high optical anisotropy and high compatibility with a polymer resin, which is represented by Formula 1 and necessarily has at least one meta substituent. Also, a resin composition including the compound and a polymer resin, and an optical member including the resin composition are disclosed. Since the compound represented by Formula 1 is an anisotropic compound having high compatibility with a polymer resin and high optical anisotropy, in the case of an optical member obtained by using a polymer resin composition including the compound represented by Formula 1, there is no phase separation, and it is possible to achieve a required optical characteristic with only a small amount thereof. | 06-03-2010 |
Patent application number | Description | Published |
20110140881 | WIRELESS TERMINAL, METHOD FOR OPERATING WIRELESS TERMINAL, AND METHOD FOR OPERATING WIRELESS NETWORK - Provided is a method for operating a wireless terminal. In the method, an event is detected through a user interface. Location information is detected through a wireless channel in response to the event detection. The detected event information and the detected location information are outputted to the user interface. | 06-16-2011 |
20110141931 | FEEDBACK GENERATION METHOD AND SYSTEM FOR UPLINK TRANSMIT POWER CONTROL - A feedback generation method for uplink Transmit Power Control (TPC) in a mobile communication system is provided. A feedback generation system for uplink TPC includes an uplink information receiver to receive uplink information from a terminal, to measure a Signal-to-Interference Noise Ratio (SINR) value with respect to the received uplink information, and to measure a movement speed of the terminal, a transmission power adjustment value setting unit to set a transmission power adjustment value based on the movement speed of the terminal; an adjusted SINR calculator to calculate an adjusted SINR value, based on an expected SINR value and the measured SINR value; and a feedback information regenerator to regenerate feedback information based on the transmission power adjustment value and the adjusted SINR value, and to transmit the regenerated feedback information to the terminal. | 06-16-2011 |
20110141988 | DATA TRANSMISSION SYSTEM FOR TRANSMITTING CONTROL INFORMATION TO BASE STATION - Provided is a data transmission system for transmitting control information from a terminal to a base station. The terminal may multiplex the control information, and may transmit the multiplexed control information to the base station using a plurality of transmit antennas. The base station may receive the multiplexed control information and combine the control information. The base station may transmit data to the terminal using the control information. | 06-16-2011 |
20110142145 | METHOD FOR ESTIMATING FREQUENCY OFFSET IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM - Provided is a method for estimating a frequency offset. The method for estimating the frequency offset may include calculating autocorrelation values associated with a Cyclic Prefix (CP) for a reception signal, dividing the calculated autocorrelation values into first autocorrelation values associated with an interval where a signal exists and second autocorrelation values associated with an interval where a signal does not exist, determining whether to use the divided second autocorrelation values; and estimating the frequency offset using the second autocorrelation values determined to be used and the first autocorrelation values. | 06-16-2011 |
20110142220 | APPARATUS AND METHOD OF PROCESSING A GHOST REGISTER - Provided is a ghost register processing apparatus and method. The ghost register processing apparatus may include a ghost setting determining unit to determine whether a ghost is set with respect to a caller identification (ID) that is received in response to a call request or a message reception and a reception information controller to store reception information associated with the caller ID in a ghost memory unit when the determining determines that the ghost is set. | 06-16-2011 |
20110142232 | SYSTEM AND METHOD FOR EFFECTIVE SCRAMBLING OR DESCRAMBLING - Provided is an scrambling or descrambling method and apparatus. The scrambling system includes a data stream generating unit to generate data streams, a scrambling linear feedback shift register (LFSR) group to calculate a sequence output with respect to each of the generated data streams, and a scrambling processing unit to perform scrambling of the generated data streams based on the calculated sequence outputs. The descrambling system includes a data stream generating unit to generate scrambled data streams using scrambled data, a descrambling LFSR group to calculate a sequence output of each of the generated scrambled data streams, and a descrambling processing unit to perform descrambling of the scrambled data streams using the calculated sequence outputs. | 06-16-2011 |
20110145669 | DATA DERATE MATCHER FOR SUPPORTING HARQ AND METHOD THEREOF - A data derate matcher for supporting hybrid automatic repeat request (HARQ), includes a control parameter generation unit for generating control parameters to separate bits of an input bit stream e | 06-16-2011 |
20120002710 | FIXED STATION RECEIVER FOR MIMO COMMUNICATION SYSTEMAND UPLINK ADAPTATION METHOD THEREOF - Provided are a fixed station receiver for a Multi-Input Multi-Output (MIMO) communication system and an uplink adaptation method thereof. In the uplink adaptation method, a sounding reference signal (SRS) is received from a terminal including a plurality of transmission antennas. A complex channel matrix (H) corresponding to a channel response and a noise variance (σ | 01-05-2012 |
20120030534 | PHYSICAL UPLINK SHARED CHANNEL ENCODER FOR USER EQUIPMENT MODEM AND ENCODING METHOD OF THE SAME - Provided are a Physical Uplink Shared CHannel (PUSCH) encoder and an encoding method of the same. The PUSCH encoder includes a plurality of encoding units and a channel interleaving unit interleaving the data transferred from the plurality of encoding units. Herein, the respective encoding units perform encoding operations on different data. The PUSCH encoder is configured to perform the respective encoding operations in parallel. In accordance with the PUSCH encoder and the encoding method thereof, the encoding operations are performed on different data in parallel to reduce latency, leading to an increase in processing speed of a codec system. Furthermore, the increase in processing speed of the codec system results in the improvement of performance and throughput per unit hour in a data communication system. | 02-02-2012 |
20120064890 | INTEGRATED TERMINAL USING SUPPLEMENTARY INFORMATION AND COMMUNICATING METHOD THEREOF - Provided is a method for efficiently performing a communication operation using supplementary information. A communication method in an integrated terminal which communicates through communication modems corresponding to base stations of various communication systems includes reading a communication network information file which is updated and is included in the integrated terminal and performing the communication operation based on the read communication network information file. | 03-15-2012 |
20120066283 | DIVIDER AND METHOD OF OPERATING THE SAME - Provided are a divider having a small area and an improved operation speed and a method of operating the same. The divider includes a memory, a controller, and a multiplier. The memory is configured to store table values included in a predetermined range. The controller is configured to receive a divisor, generate an address expressed in a plurality of bits according to the bits except the most significant bit of the divisor, and receive the table value corresponding to the address from the memory. The multiplier is configured to receive a dividend and calculate an initial value by multiplying the dividend and the table value corresponding to the address. Herein, the controller determines an exponent of the divisor and right-shifts the initial value by the exponent of the divisor. | 03-15-2012 |
20120069915 | RATE MATCHING APPARATUS AND RATE MATCHING METHOD THEREOF - Provided is a rate matching apparatus. The rate matching apparatus includes interleavers, dummy bit removers, a bit collector, a memory and a selector. The interleavers interleave code blocks, respectively. The dummy bit removers remove dummy bits of the interleaved code blocks, respectively. The bit collector collects code blocks with the dummy bits removed by bit units, and divides a collected data bit stream into systematic data and parity data. The memory stores the systematic data and the parity data in parallel. The selector outputs in parallel a plurality of data bits which are selected from the systematic data and parity data of the memory. | 03-22-2012 |
20120093255 | DATA TRANSMITTER AND METHOD FOR FORMING SYMBOL THEREOF - Provided is a data transmission device and a symbol generation method of the same. A data processing unit of a data transmission device according to an embodiment of the present invention accesses a memory device for reading another data block while symbols for one data block are generated. | 04-19-2012 |
20120119950 | NAVIGATION SATELLITE SIGNAL REPEATER AND NAVIGATION SATELLITE SIGNAL REPEATING METHOD - A navigation satellite signal repeater and a navigation satellite signal repeating method are provided. The navigation satellite signal repeater includes an outdoor navigation satellite receiver and a plurality of navigation satellite signal generators. The outdoor navigation satellite receiver is configured to receive a navigation satellite signal from a navigation satellite and extract satellite information from the received navigation satellite signal. The navigation satellite signal generators are disposed in a building and are configured to receive the extracted satellite information through a transmission line, generate new satellite information in consideration of a time delay of the transmission line, and transmit a new navigation satellite signal corresponding to the new satellite information. The navigation satellite signal repeater repeats a new navigation satellite signal by reflecting a time delay of satellite information, thus enabling accurate location detection even in a poor environment (e.g., an indoor environment) where a navigation satellite signal is not received. | 05-17-2012 |
20120155402 | BASE STATIONS AND RESOURCE ALLOCATION METHODS THEREOF - Provided is a base station. The base station includes a transceiver, a frequency allocation unit, and an orthogonal code allocation unit. The transceiver communicates with a terminal. The frequency allocation unit allocates a frequency resource to the terminal through the transceiver. The orthogonal code allocation unit generates an orthogonal code index table including a plurality of orthogonal code combinations, and allocates one of the orthogonal code combinations included in the orthogonal code index table to each terminal, to which the frequency resource has been allocated for a service request of the terminal, through the transceiver not to multiply be allocated. At least one of a plurality of orthogonal codes included in the orthogonal code combination is orthogonal to at least one of a plurality of orthogonal codes included in an orthogonal code combination allocated to another terminal. | 06-21-2012 |
20130163403 | DATA PROCESSING DEVICE OF MULTI-CARRIER SYSTEM AND DATA PROCESSING METHOD THEREOF - A data processing method of a multi-carrier receiving device, according to an embodiment of the present invention, includes determining a data processing order for user data provided from a plurality of different users according to a unit data length detected from user information, processing in parallel the user data according to the determined data processing order by using a plurality of inverse discrete Fourier transform (IDFT) engines, and recombining the in-parallel-processed data on a per-user basis with reference to the data processing order and timing information. | 06-27-2013 |
Patent application number | Description | Published |
20100113720 | METHOD FOR PREPARING ELASTOMERIC COPOLYMERS OF ETHYLENE AND ALPHA-OLEFINS - Provided is a process for preparing copolymers of ethylene with α-olefin. More specifically, provided are transition metal compound being useful as catalyst for preparing those copolymers, a catalyst composition comprising the same, and a process for preparing elastic copolymers of ethylene with α-olefin, having the density of not more than 0.910, which can be adopted to a wide variety of applications including film, electric wires, and hot-melt adhesives. The catalyst composition is a catalytic system which comprises transition metal catalyst comprising a cyclopentadiene derivative and at least one anionic ligand(s) of aryloxy group with an aryl derivative at ortho-position, and boron or aluminum compound as an activator. Provided is a process for copolymerizing ethylene with α-olefin to produce copolymer having narrow molecular weight distribution and uniform density distribution with the density of not more than 0.910, with high activity and excellent reactivity on higher α-olefin. | 05-06-2010 |
20100113729 | ETHYLENE COPOLYMER WITH IMPROVED IMPACT RESISTANCE - Provided are ethylene copolymers with excellent impact resistance. More specifically, provided are ethylene copolymers satisfying certain correlation between the falling dart impact strength (F) or high rate impact resistant breakage energy (E) and Vicat softening point. The ethylene copolymers with improved impact properties are applicable to film, injection, compound, sheet, roto, pipe or blow molding. | 05-06-2010 |
20100120981 | ETHYLENE COPOLYMER AND A METHOD OF PREPARING THE SAME - Provided are ethylene copolymers and a process for preparing the same. More specifically, provided are ethylene copolymers exhibiting excellent processibility and physical properties due to its multimodal molecular weight distribution index, through a multi-stage process by using reactors connected in series or in parallel in the presence of catalyst composition containing transition metal catalyst, and a process for preparing the same. | 05-13-2010 |
20110054145 | Continuous Process for Manufacturing Aliphatic Polycarbonates from Carbon Dioxide and Epoxides - Disclosed is a continuous process for manufacturing aliphatic polycarbonate by polymerizing carbon dioxide and one or more epoxide compound in the presence of catalyst, in which carbon dioxide, one or more epoxide compound, and the catalyst are continuously supplied to polymerization reactor to produce aliphatic polycarbonate, separate unreacted carbon dioxide and epoxide compound and recycle them as raw materials. | 03-03-2011 |
20110172380 | NEW TRANSITION METAL CATALYTIC SYSTEMS AND METHODS FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND a-OLEFINS USING THE SAME - Provided are transition metal catalytic systems for preparing ethylene homopolymers or copolymers of ethylene with α-olefins. More specifically, provided are Group 4 transition metal catalysts, which is characterized in that the Group 4 transition metal catalyst comprises around the Group 4 transition metal a cyclopentadiene derivative, and at least one naphthoxide ligand(s) having aryl substituent(s) that function(s) as an electron donor and serve(s) to stabilize the catalyst system by surrounding an oxygen atom that links the ligand to the transition metal at 2-position, and there is no cross-linkage between the ligands; catalytic systems comprising such transition metal catalyst and aluminoxane cocatalyst or boron compound cocatalyst; and processes for preparing ethylene homopolymers or copolymers of ethylene with α-olefins by using the same. | 07-14-2011 |
20110282011 | METHOD FOR PREPARING ELASTOMERIC COPOLYMERS OF ETHYLENE AND a-OLEFINS - Provided is a process for preparing copolymers of ethylene with α-olefin. More specifically, provided are transition metal compound being useful as catalyst for preparing those copolymers, a catalyst composition comprising the same, and a process for preparing elastic copolymers of ethylene with α-olefin, having the density of not more than 0.910, which can be adopted to a wide variety of applications including film, electric wires, and hot-melt adhesives. The catalyst composition is a catalytic system which comprises transition metal catalyst comprising a cyclopentadiene derivative and at least one anionic ligand(s) of aryloxy group with an aryl derivative at ortho-position, and boron or aluminum compound as an activator. Provided is a process for copolymerizing ethylene with α-olefin to produce copolymer having narrow molecular weight distribution and uniform density distribution with the density of not more than 0.910, with high activity and excellent reactivity on higher α-olefin. | 11-17-2011 |
20120041149 | ETHYLENE COPOLYMER AND A METHOD OF PREPARING THE SAME - Provided are ethylene copolymers and a process for preparing the same. More specifically, provided are ethylene copolymers exhibiting excellent processibility and physical properties due to its multimodal molecular weight distribution index, through a multi-stage process by using reactors connected in series or in parallel in the presence of catalyst composition containing transition metal catalyst, and a process for preparing the same. | 02-16-2012 |
20130137837 | ETHYLENE COPOLYMER WITH IMPROVED IMPACT RESISTANCE - Provided are ethylene copolymers with excellent impact resistance. More specifically, provided are ethylene copolymers satisfying certain correlation between the falling dart impact strength (F) or high rate impact resistant breakage energy (E) and Vicat softening point. The ethylene copolymers with improved impact properties are applicable to film, injection, compound, sheet, roto, pipe or blow molding. | 05-30-2013 |