Patent application number | Description | Published |
20110059700 | ADAPTIVE TRANSMISSION AND RECEIVING METHOD AND DEVICE IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNAS - Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data. | 03-10-2011 |
20120127886 | ADAPTIVE TRANSMISSION AND RECEIVING METHOD AND DEVICE IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNAS - Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data. | 05-24-2012 |
20130215948 | ADAPTIVE TRANSMISSION AND RECEIVING METHOD AND DEVICE IN WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNAS - Disclosed is an adaptive transmit and receive method and device in a multiple-antenna wireless communication system. A transmit mode comprises different main transmit modes each of which includes one or both of a sub-transmit mode based on STBC and a sub-transmit mode based on SM. A receiver calculates an STBC performance parameter and a SM performance parameter, and a transmitter uses the parameters to determine a main transmit mode with maximum data rates and select a sub-transmit mode for minimizing power consumption. The transmitter channel-encodes, modulates and antenna-maps input data according to the selected transmit mode, and outputs results to the receiver. The receiver antenna/symbol-demodulates and channel-decodes the received data. | 08-22-2013 |
Patent application number | Description | Published |
20090020814 | High Voltage Semiconductor Device with Floating Regions for Reducing Electric Field Concentration - A high voltage semiconductor device includes a source region of a first conductivity type having an elongated projection with two sides and a rounded tip in a semiconductor substrate. A drain region of the first conductivity type is laterally spaced from the source region in the semiconductor substrate. A gate electrode extends along the projection of the source region on the semiconductor substrate between the source and drain regions. Top floating regions of a second conductivity type are disposed between the source and drain regions in the shape of arched stripes extending along the rounded tip of the projection of the source region. The top floating regions are laterally spaced from one another by regions of the first conductivity type to thereby form alternating P-N regions along the lateral dimension. | 01-22-2009 |
20100163977 | Semiconductor Device and Method for Fabricating the Same - A method for fabricating a semiconductor device includes forming a trench in a substrate, forming a gate electrode buried over the trench to form a buried gate pattern, etching portions of the substrate on both sides of the buried gate pattern to a certain depth, performing an ion implantation process on the substrate to form source/drain junctions, and forming metal patterns over the source/drain junctions. | 07-01-2010 |
20110007242 | LIQUID CRYSTAL DISPLAY DEVICE - In a liquid crystal display (LCD) device, an LED PCB with the reflection layer formed on surface thereof is installed at an upper side of the LED array and a reflection plate extends such that it sufficiently covers the lower portion of the LED array to thus make light emitted from the light source incident to its maximum level, thus coping with the reduction in the quantity of light resulting from making the LCD device thinner. The LCD device includes: a liquid crystal panel; an LED array supplying light to the liquid crystal panel; a light guide plate installed in a direction in which the LED outputs light, and guiding light; a reflection plate formed between the LED array and a lower portion of a lower cover; and an LED PCB attached to an upper portion of the lower cover at an upper side of the LED array and having a reflection layer formed at a side facing the light guide plate. Because an existing LED housing reflector is removed, a cost and processing time can be reduced and an assembling process is simplified to improve a defective rate and production yield. | 01-13-2011 |
20110163358 | SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME - A method for fabricating a semiconductor device includes forming a trench in a substrate, forming a gate electrode buried over the trench to form a buried gate pattern, etching portions of the substrate on both sides of the buried gate pattern to a certain depth, performing an ion implantation process on the substrate to form source/drain junctions, and forming metal patterns over the source/drain junctions. | 07-07-2011 |
20110200907 | ION CONDUCTIVE RESIN FIBER, ION CONDUCTIVE HYBRID MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL - Provided are an ion conductive resin fiber, an ion conductive hybrid membrane, a membrane electrode assembly and a fuel cell. The ion conductive resin fiber comprises an inner layer including an ion conductive resin; and an outer layer including an ion conductive resin having larger EW than the ion conductive resin of the inner layer, and surrounding the inner layer. The ion conductive resin fiber and the ion conductive hybrid membrane are excellent in ion conductivity, polar solvent stability and dimensional stability under low humidity conditions. The fuel cell manufactured using the same has advantages of stable operation and management of a system at ease, removal or reduction of components related to water management, and even in case of low relative humidity, operation at high temperature of 80° C. or higher. | 08-18-2011 |
20120181555 | LIGHT-EMITTING DEVICE PACKAGE AND METHOD OF MANUFACTURING THE SAME - Light-emitting device packages which may be manufactured using post-molding and with improved heat emission performance and optical quality, and methods of manufacturing the light-emitting device packages. The light-emitting device package includes: a heat dissipation pad; a light-emitting device formed on the heat dissipation pad; a pair of lead frames disposed to be spaced apart from each other at both sides of the light-emitting device and the heat dissipation pad; a molding member surrounding the side of the light-emitting device except for an emission surface of the light-emitting device; and bonding wires for electrically connecting the lead frames to the light-emitting device. | 07-19-2012 |
20120205777 | SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME - A semiconductor device includes a trench formed in a substrate and defining a plurality of active regions, a punch-through prevention layer filling a part of the trench and coupled to a ground, and an isolation layer formed over the punch-through prevention layer and filling the other part of the trench. | 08-16-2012 |
20140169036 | DISPLAY DEVICE AND METHOD FOR FABRICATING REFLECTIVE SHEET FOR THE SAME - A display device and a method of fabricating a reflective sheet for the same are provided. The display device includes: a display panel to display an image, a plurality of light emitting diodes (LEDs) to: generate and supply light to the display panel, a light guide plate to guide the light to the display panel, and a reflective sheet to reflect light toward a cover bottom below the LEDs toward the light guide plate, the reflective sheet including: a reflective layer, first and second skin layers respectively on upper and lower portions of the reflective layer, the first and second skin layers each including an embossing surface including a plurality of first reflective patterns to: prevent adhesion between the reflective layer and the light guide plate, and increase efficiency of light, and the reflective layer including a plurality of second reflective patterns, each including a filler in an air layer. | 06-19-2014 |
20140217939 | APPARATUS AND METHOD OF DECREASING SPEED OF SENSORLESS BRUSH LESS DIRECT CURRENT (BLDC) MOTOR - Disclosed herein is an apparatus of a sensorless brush less direct current (BLDC) motor capable of rapidly driving the BLDC motor at a decreased speed. The apparatus includes: a switching unit configured to switch a direct current (DC) power depending on a plurality of pulse width modulation (PWM) signals to generate a three-phase alternating current (AC) power and apply the generated three-phase AC power to the BLDC motor to drive the BDLC motor; a plurality of voltage dividers configured to divide voltages of reverse electromotive forces generated in the BLDC motor; and a controlling unit configured to calculate a current rotation speed of the BLDC motor using output signals of the plurality of voltage dividers, generate the plurality of PWM signals depending on the calculated current rotation speed and a command rotation speed and output the plurality of PWM signals to the switching unit, divide a rotation phase angle of the BLDC motor into a speed decreasing region and a zero crossing point (ZCP) detecting region in the case of decreasing a rotation speed of the BLDC motor, decrease the rotation speed of the BLDC motor in the case in which the rotation phase angle of the BLDC motor is in the speed decreasing region, and detect ZCPs of the reverse electromotive forces in the case in which the rotation phase angle of the BLDC motor is in the ZCP detecting region. The apparatus may very rapidly decrease a speed of the BLDC motor to a required speed. | 08-07-2014 |
20140256316 | METHOD AND ELECTRONIC DEVICE FOR NETWORK SEARCH - A method and an electronic device for network search. The network search method in an electronic device includes scanning a frequency band corresponding to a first communication system to search for a first Public Land Mobile Network (PLMN); when discovering a second PLMN as a result of the scanning, determining whether a frequency band of the second PLMN and a frequency band of a second communication system overlap each other; and when the frequency band of the second PLMN and the frequency band of the second communication system overlap each other, scanning the other frequency band excluding the overlapping frequency band in the entire frequency band corresponding to the second communication system to search for the first PLMN. | 09-11-2014 |
20150069509 | SEMICONDUCTOR DEVICE - A semiconductor device includes a substrate having a supporting substrate, wherein a first epitaxial layer and a second epitaxial are sequentially stacked, an isolation region including a first buried impurity region of a second conductivity type and a second buried impurity region of the second conductivity type wherein the first buried impurity region is formed from the supporting substrate to the first epitaxial layer, and the second buried impurity region is formed from the first epitaxial layer to the second epitaxial layer and is in contact with an edge of the first buried impurity region, a third buried impurity region of a first conductivity type formed from the first epitaxial layer to the second epitaxial layer, located in the second buried impurity region and overlapped with the first buried impurity region, and a transistor formed over the second epitaxial layer and overlapped with the third buried impurity region. | 03-12-2015 |
Patent application number | Description | Published |
20100297519 | CATHODE FOR FUEL CELL HAVING TWO KINDS OF WATER-REPELLENCY AND METHOD OF PREPARING THE SAME AND MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL COMPRISING THE SAME - A cathode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the cathode has two portions with different water-repelling properties, and a portion of the catalyst layer that does not face a channel has a higher water-repelling property than a portion that faces a channel. This cathode controls water-repelling property of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way and to restrain generation of flooding, thereby improving the performance of the cell. | 11-25-2010 |
20100304269 | Electrode For Fuel Cell And Method Of Preparing The Same And Membrane Electrode Assembly And Fuel Cell Comprising The Same - The present invention relates to an electrode for a fuel cell including a catalyst layer that includes a catalyst portion containing a plurality of first catalyst particles dispersed in an ionomer binder resin; and an ionomer portion containing a plurality of second catalyst particles dispersed in an ionomer binder resin, and having a lower concentration of catalyst particles than the catalyst portion, wherein the ionomer portion has a shape of a wall or plural pillars in the catalyst portion. The electrode for a fuel cell according to the present invention has a separate ionomer portion in the catalyst layer, and thus has excellent ion conductivity in an electrode layer and the remarkably improved reaction surface area to enhance the performance of the fuel cell. | 12-02-2010 |
20130316075 | CATHODE FOR FUEL CELL HAVING TWO KINDS OF WATER-REPELLENCY AND METHOD OF PREPARING THE SAME AND MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL COMPRISING SAME - A cathode for a fuel cell includes a gas diffusion layer contacting with a separator having a channel and a catalyst layer interposed between the gas diffusion layer and an electrolyte membrane. The catalyst layer of the cathode has two portions with different water-repelling properties, and a portion of the catalyst layer that does not face a channel has a higher water-repelling property than a portion that faces a channel. This cathode controls a water-repelling property of the catalyst layer differently according to locations, so it is possible to keep an amount of moisture in an electrode in a suitable way and to restrain generation of flooding, thereby improving the performance of the cell. | 11-28-2013 |
Patent application number | Description | Published |
20100157197 | BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME - A backlight unit for a liquid crystal display device includes a reflection plate, first and second light guide plates over the reflection plate, the second light guide plate disposed between the first light guide plate and the reflection plate, wherein the first light guide plate includes first and second sections alternating with each other, and the second light guide plate includes third and fourth sections alternating with each other, the first and third sections having patterns at rear surfaces, the second and fourth sections excluding patterns, wherein the first section corresponds to the fourth section, and the second section corresponds to the third section, first and second light-emitting diode (LED) assemblies at opposite sides of the first and second light guide plates, each of the first and second LED assemblies including LEDs arranged in first and second lines, and a plurality of optical sheets over the first light guide plate, wherein the LEDs of the first lines of the first and second LED assemblies face opposite side surfaces of the first light guide plate, and the LEDs of the second lines of the first and second LED assemblies face opposite side surfaces of the second light guide plate. | 06-24-2010 |
20140049532 | DISPLAY DEVICE ABLE TO PREVENT AN ABNORMAL DISPLAY CAUSED BY A SOFT FAIL AND A METHOD OF DRIVING THE SAME - A display device includes a data driver for applying a data signal to a data line; a gate driver for applying a gate signal to a gate line; a level shifter for shifting a voltage level of a signal applied to the gate driver; and a signal controller for controlling the data driver, the level shifter, and the gate driver, wherein when a signal exchange between the data driver and the signal controller has an abnormality, the signal controller maintains a control signal applied to the level shifter in an off level. | 02-20-2014 |
Patent application number | Description | Published |
20090201635 | Flat panel display device - A flat panel display device includes a bezel and a flat display panel accommodated in the bezel. The bezel includes a substrate part, bent parts, each of which is formed on one of edges of the substrate part and extends substantially perpendicular to the substrate part, and a protrusion formed at an end of one of the bent parts. In another embodiment, a flat panel display device further includes a cover bezel covering the bezel and the flat display panel. The cover bezel has an open window through which light from the flat panel display transmits, and the cover bezel includes an insertion part that is coupled with the protrusion. | 08-13-2009 |
20090213292 | Flat panel display device - A flat panel display device includes a folded bezel formed in a multi-layer structure. The flat panel display device is formed so that an electronic component of a flexible printed circuit board may be inserted into at least one opening formed at a location where the layers of the bezel correspond to one another. Thus, the electronic component inserted into the opening of the bezel has improved durability against external interference and impact, and the number of components and the number of processes can be reduced. | 08-27-2009 |
20120138988 | LIGHT EMITTING DEVICE PACKAGE AND MANUFACTURING METHOD THEREOF - A light emitting device (LED) package and a manufacturing method thereof are provided. The LED package includes an LED including a first electrode pad and a second electrode pad disposed on one surface thereof; a bonding insulating pattern layer configured to expose the first electrode pad and the second electrode pad; a substrate including a via hole bored from a first surface to a second surface and a wiring metal layer formed on an inner surface of the via hole to extend to a part of the second surface; and a bonding metal pattern layer bonded to the wiring metal layer exposed through the via hole at the first surface of the substrate and also bonded to the first electrode pad and the second electrode pad. | 06-07-2012 |
20140232293 | LIGHT-EMITTING DEVICE PACKAGE - The present application provides a light-emitting device package. The light-emitting device package includes a package substrate includes at least one via hole. A light-emitting device is mounted on the package substrate so as to overlap with the via hole. A bonding layer is formed between the light-emitting device and the package substrate and includes a eutectic bonding material. | 08-21-2014 |
20140239328 | LIGHT EMITTING DEVICE PACKAGE - The present application relates to a light emitting device package. The light emitting device package includes a package substrate in which a via hole is formed. An electrode layer extends to both surfaces of the package substrate after passing through the via hole. A light emitting device is arranged on the package substrate and is connected to the electrode layer. A fluorescence film includes a first part that fills at least a part of an internal space of the via hole and a second part that covers at least a part of the light emitting device. | 08-28-2014 |
Patent application number | Description | Published |
20120236205 | COLOR SPACE DETERMINATION DEVICES AND DISPLAY DEVICES AND SYSTEMS INCLUDING THE SAME - A color space determination device may include a sampling configuration unit and determination unit. The sampling configuration unit may be configured to determine a sampling ratio and a sampling number based on a resolution of input video data, the sampling ratio being a ratio of a number of the input video data to be sampled to a total number of the input video data included in a frame, the sampling number being a number of frames to be sampled. The determination unit may be configured to receive the input video data in units of frames, to sample the input video data with the sampling ratio for each of the sampling number of frames, and to generate a color space signal representing a color space of the input video data based on the sampled input video data that are sampled from the sampling number of frames of the input video data. | 09-20-2012 |
20140269381 | METHODS AND DEVICES FOR ALLOCATING RESOURCES FOR COMMUNICATIONS WITH BASE STATIONS - A device may include a receiver configured to receive messages about first transmission rates provided by cooperation devices configured for device-to-device (D2D) communications in a radio communication system supporting the D2D communications; a determiner configured to determine second transmission rates for the device to suggest to the cooperation devices based on the first transmission rates; and/or a transmitter configured to transmit messages about the second transmission rates to the cooperation devices. The determiner may be further configured to change the second transmission rates until the first transmission rates converge. The determiner may be further configured to determine a final transmission rate suggested to the cooperation devices based on the converged first transmission rates. | 09-18-2014 |
20150065196 | METHOD AND APPARATUS FOR PERFORMING FUNCTION BY COMBINING ONE OR MORE FUNCTION BLOCKS - A method of performing a function by combining one or more blocks including sensing whether the one or more blocks are connected, determining indexes respectively corresponding to the connected one or more blocks, deciding, by using the indexes, a function to be performed based on the sensing, the function being one of a plurality of functions, each function associated with a respective set of function blocks, and generating a control signal for performing the decided function may be provided. | 03-05-2015 |