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Choi, Hwaseong-Si

Byeong-Bae Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090094471VIDEO PROCESSING APPARATUS AND CONTROL METHOD THEREOF - A video processing apparatus and a control method thereof are provided. The video processing apparatus includes: a processing unit which processes a video signal for display; a clock generating unit which generates a system clock for driving the processing unit and outputs the system clock to the processing unit; a power supply unit which supplies power to the processing unit; and a controller which counts a power supply time using a clock generated from the system clock. The controller compares the counted power supply time with a predetermined reference time, and controls power supplied to the processing unit from the power supply unit.04-09-2009

Byoung-Ho Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20080239933WRITABLE OPTICAL INFORMATION RECORDING MEDIUM, APPARATUS FOR REPRODUCING THE SAME, AND METHOD OF DETERMINING THE SAME - A writable optical information recording medium, an apparatus for reproducing the same, and a method of determining the same are provided. The amplitude of a push-pull signal (PPS) of the writable optical information recording medium is determined to be within an amplitude range of a PPS of a reproduction-only optical information recording medium. Accordingly, it is possible to stably reproduce copy protected content by recognizing a loaded writable optical information recording medium as a medium of a reproduction-only type.10-02-2008

Byung Gil Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090237978Semiconductor device having resistance based memory array, method of reading, and systems associated therewith - In one embodiment, the semiconductor device includes a non-volatile memory cell array. Memory cells of the non-volatile memory cell array are resistance based, and each memory cell has a resistance that changes over time after data is written into the memory cell. A write address buffer is configured to store write addresses associated with data being written into the non-volatile memory cell array, and a read unit is configured to perform a read operation to read data from the non-volatile memory cell array. The read unit is configured to control a read current applied to the non-volatile memory cell array during the read operation based on whether a read address matches one of the stored write addresses and at least one indication of settling time of the data being written into the non-volatile memory cell array.09-24-2009

Byung Yong Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090152433HEIGHT ADJUSTING APPARATUS FOR VEHICLE SEATS - A height adjusting apparatus for vehicle seats may include seat side frames provided on both side ends of a seat part of a seat, each of the seat side frames connected to the seat bracket via a front link and a rear link, the support rod coupling the seat side frames to each other, the pinion gear provided on a seat side frame, the rack gear link having on one end thereof a rack gear which engages with an upper end of the pinion gear, and coupled at the other end thereof to a hinge of the front link placed on the seat bracket, so that, when the pinion gear is driven, the rack gear link pulls the seat side frame forwards to lift it up, and the support pin provided on the seat side frame in such a way as to be placed above the rack gear.06-18-2009
20090152928Seatback Frame for Vehicles - A seatback frame for vehicles has a lower cross member that prevents a back pad and a recliner hinge shaft from interfering with each other. The seatback frame includes a back frame and a lower cross member. The lower cross member includes a reinforcing part and a hinge-shaft cover. The back frame is hinged to a seat frame via a recliner hinge shaft. The lower cross member couples both sides of the lower end of the back frame to each other. The reinforcing part has the shape of an embossment which extends in a longitudinal direction of the lower cross member. The hinge-shaft cover is provided on the lower portion of the lower cross member, and is bent to surround the recliner hinge shaft.06-18-2009

Chang-Jun Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100097097SEMICONDUCTOR DEVICE USING POWER GATING - A semiconductor device using power gating includes a circuit unit and a current blocking unit. The circuit unit is connected between a first voltage node and a virtual voltage node. The current blocking unit is connected between the virtual voltage node and a second voltage node, and can block a leakage current of the circuit unit in a standby mode. Also, the current blocking unit controls whether or not to connect the virtual voltage node and the second voltage node in response to a plurality of random signals whose logic states are randomly transited when the standby mode is switched to an active mode. The semiconductor device can minimize ground bounce noise and can stably apply a voltage to a circuit storing data in a data retention mode.04-22-2010

Cheol Ho Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100052152Semiconductor package transformer - The present invention relates to a semiconductor package transformer. There is provided a semiconductor package transformer including: a case where an opening into which a semiconductor package having a chip mounted on a substrate is inserted is formed on its front surface and an open part exposing is formed on its upper surface; and a plurality of holes that are formed on the bottom surface of the case.03-04-2010

Chi Jeong Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090312054ANTENNA ASSEMBLY FOR PORTABLE DEVICE - An antenna assembly for a portable device is provided. The antenna assembly includes a battery cover including a metal material, a short-range wireless communication module electrically connected to the battery cover, and a main antenna electrically connected to the short-range communication module.12-17-2009

Dukhyun Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100033059APPARATUS FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR MANUFACTURING THE SAME - An apparatus for generating electrical energy including a first electrode, a second electrode and one or more nanowires, and a method for manufacturing the apparatus for generating electrical energy. The second electrode may have a concave portion and a convex portion. The first electrode and the nanowire are formed of different materials. The nanowire is formed on the first electrode and is positioned between the first electrode and the second electrode. Because the nanowire is formed on the first electrode, the nanowire may be grown vertically and the uniformity and conductivity of the nanowires may be improved. When a stress is applied to the first electrode or the second electrode, the nanowire is deformed and an electric current is generated from the nanowire due to a piezoelectric effect of the nanowire and a Schottky contact between the nanowire and the electrode which makes contact with the nanowire. Accordingly, when the apparatus for generating electrical energy is bent or pressed in part, electrical energy is generated in response to the applied stress.02-11-2010
20100136414APPARATUS FOR STORING ENERGY AND METHOD FOR MANUFACTURING THE SAME - An apparatus for storing energy may include: a plurality of nanowire cells electrically connected to each other; and a storage for storing electrical energy generated from the nanowire cells. Each of the plurality of nanowire cells may include: first and second electrodes disposed at an interval; and a nanowire, which is disposed between the first and the second electrodes and made of a piezoelectric material. The plurality of nanowire cells may be electrically connected, so that voltage or current may be increased. Therefore, wireless recharging of the storage connected to the nanowire cells with electrical energy may be enabled.06-03-2010
20100156249APPARATUS FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR MANUFACTURING THE SAME - An apparatus for generating electrical energy may include; a first electrode, a second electrode spaced apart from the first electrode, the second electrode having a substantially planar flat plate shape, a conductor which electrically connects the first and second electrodes, and a nanowire disposed on the first electrode, the nanowire including a deformable piezoelectric material, wherein a Schottky contact is formed between the nanowire and the second electrode as the nanowires is deformed.06-24-2010
20100253184APPARATUS FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR MANUFACTURING THE SAME - An apparatus for generating electrical energy may include; a first electrode, a second electrode spaced apart from the first electrode, a nanowire which includes a piezoelectric material and is disposed on the first electrode, an active layer disposed on the first electrode, a conductive layer disposed on the active layer, and an insulating film disposed between the conductive layer and the nanowire, wherein the nanowire and the active layer are electrically connected to each other. A method for manufacturing an apparatus for generating electrical energy may include; disposing a nanowire including a piezoelectric material on a first electrode, disposing an active layer, which is electrically connected to the nanowire, on the first electrode, disposing an insulating film on the nanowire, disposing a conductive layer on the active layer, and disposing a second electrode in proximity to the nanowire and substantially opposite to the first electrode.10-07-2010
20110138610APPARATUS FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR MANUFACTURING THE SAME - An apparatus for generating electrical energy including a first electrode, a second electrode and one or more nanowires, and a method for manufacturing the apparatus for generating electrical energy. The second electrode may have a concave portion and a convex portion. The first electrode and the nanowire are formed of different materials. The nanowire is formed on the first electrode and is positioned between the first electrode and the second electrode. Because the nanowire is formed on the first electrode, the nanowire may be grown vertically and the uniformity and conductivity of the nanowires may be improved. When a stress is applied to the first electrode or the second electrode, the nanowire is deformed and an electric current is generated from the nanowire due to a piezoelectric effect of the nanowire and a Schottky contact between the nanowire and the electrode which makes contact with the nanowire. Accordingly, when the apparatus for generating electrical energy is bent or pressed in part, electrical energy is generated in response to the applied stress.06-16-2011

Duk-Hyun Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100103121TOUCH SCREEN PANEL INTEGRATED INTO LIQUID CRYSTAL DISPLAY, METHOD OF MANUFACTURING THE SAME, AND TOUCH SENSING METHOD - A touch screen panel includes: a first substrate and a second substrate, which face each other with respect to a liquid crystal interposed therebetween; and a touch sensor interposed between the first substrate and the second substrate. The touch sensor includes: a plurality of first touch signal lines disposed on the first substrate and extending in a first direction; a protective layer disposed on the first substrate, the protective layer including a dielectric material and substantially the plurality of first touch signal lines; a plurality of contact pads disposed on the protective layer; a plurality of second touch signal lines disposed on the second substrate and extending in a second direction perpendicular to the first direction; and a plurality of touch sensor spacers electrically connected to the plurality of second touch signal lines. A gap between the touch sensor spacers and the plurality of contact pads is defined, and the spacers are disposed to face the plurality of contact pads.04-29-2010
20110050042APPARATUS FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR MANUFACTURING THE SAME - Disclosed is an apparatus for generating electrical energy that includes; a first electrode, and a second electrode spaced apart from the first electrode, and an energy generation layer disposed between the first electrode and the second electrode, wherein the energy generation layer comprises a photoelectric conversion layer and a plurality of piezoelectric nanowires, and wherein when an external force is applied to at least one of the first electrode and the second electrode, the plurality of piezoelectric nanowires are transformed to generate electrical energy.03-03-2011
20110101315PIEZOELECTRIC NANOWIRE STRUCTURE AND ELECTRONIC DEVICE INCLUDING THE SAME - A piezoelectric nanowire structure includes a base substrate, a plurality of piezoelectric nanowires disposed on the base substrate, and a piezoelectric organic material layer disposed on the base substrate and covering the plurality of piezoelectric nanowires.05-05-2011
20110129675MATERIAL INCLUDING GRAPHENE AND AN INORGANIC MATERIAL AND METHOD OF MANUFACTURING THE MATERIAL - A material including: graphene; and an inorganic material having a crystal system, wherein a crystal plane of the inorganic material is oriented parallel to the (0001) plane of the graphene. The crystal plane of the inorganic material has an atomic arrangement of a hexagon, a tetragon, or a pentagon.06-02-2011
20110155478THERMOELECTRIC TOUCH SENSOR - A thermoelectric touch sensor includes a first electrode, a thin film layer provided on the first electrode and including a thermoelectric material, a second electrode provided on the thin film layer, a sensing unit which senses at least one of a current flowing between the first electrode and the second electrode and a voltage applied between the first electrode and the second electrode.06-30-2011

Ho Sik Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20110062685SEALING ASSEMBLY FOR AIR BAG DOOR - A sealing assembly for an air bag door is disclosed. The sealing assembly may include a crash pad formed with an opening portion, through which an air bag is deployed, wherein the opening portion is provided with a locking portion recessed with a predetermined length from an upper surface of the crash pad along the opening portion thereof, and an air bag door displaced on the locking portion and engaged thereto to cover the opening portion of the crash pad.03-17-2011

Hyeong Sik Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100259694LIGHT SOURCE MODULE, BACKLIGHT UNIT AND DISPLAY APPARATUS - A display apparatus having a display and a backlight unit (BLU) which provides backlight to the display are provided. The BLU includes a first light source module in which a plurality of light sources are arranged, a second light source module in which a plurality of light sources are arranged, and a light source driving unit which drives the first light source module and second light source module. The first light source module and second light source module are connected to each other by a first connector.10-14-2010
20110043721BACK LIGHT ASSEMBLY AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME - A back light assembly having uniform interior temperature to prevent quality deterioration of a liquid crystal display and a liquid crystal display including the same includes a light guide plate, a light source unit to emit light to an edge of the light guide plate, a lower cover to receive the light guide plate and the light source unit, heat generated from the light source unit being transferred to the lower cover, and a heat insulator provided adjacent to at least one region of the lower cover in an area to correspond to the light source unit.02-24-2011

Hyung-Sik Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20080314634Electromagnetic bandgap structure and printed circuit board - An electromagnetic bandgap structure and a printed circuit board that can solve a mixed signal problem between an analog circuit and a digital circuit are disclosed. In accordance with an embodiment of the present invention, an electromagnetic bandgap structure is stacked with a first metal layer, a first dielectric layer, a metal plate, a second dielectric layer and a second metal layer, and an odd number of vias can be serially connected through a metal line between the first metal layer and the metal plate. This electromagnetic bandgap structure can have a small size and a low bandgap frequency.12-25-2008
20090084582Printed circuit board having stepped conduction layer - A printed circuit board having a stepped conduction layer is disclosed. In one embodiment of the invention, a printed circuit board is provided in which at least one conduction layer configured for use as a signal transmission layer is divided into at least two base regions and at least one connecting region connecting any adjacent two of the base regions, where the connecting region is stepped to a lower height than those of the base regions. The stepped conduction layer in the printed circuit board can be used to resolve the problem of mixed signals in a printed circuit board equipped with various parts and components, including an analog circuit and digital circuit, etc.04-02-2009

Jaehyoung Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100127319Semiconductor devices including a dielectric layer - A semiconductor device includes a substrate and a doped hafnium oxide layer disposed on the substrate, the doped hafnium oxide layer including a hafnium oxide layer doped with doping atoms and having tetragonal unit lattices, an ion size of the doping atom being greater than an ion size of a hafnium atom.05-27-2010
20100129947Resistance-variable memory device, method for fabricating the same and memory system including the same - In the method of fabricating the variable-resistance memory device, a substrate including a conductive region is provided, and a preliminary lower electrode is formed on the conductive region. A lower electrode is formed by oxidizing an upper portion of the preliminary lower electrode. A phase-change material layer is formed on the lower electrode.05-27-2010
20100254191SEMICONDUCTOR MEMORY DEVICE COMPRISING THREE-DIMENSIONAL MEMORY CELL ARRAY - A semiconductor memory device includes a substantially planar substrate; a memory string vertical to the substrate, the memory string comprising a plurality of storage cells; and a plurality of elongated word lines, each word line including a first portion substantially parallel to the substrate and connected to the memory string and a second portion substantially inclined relative to the substrate and extending above the substrate, wherein a first group of the plurality of word lines are electrically connected to first conductive lines disposed at a first side of the memory string, and a second group of the plurality of word lines are electrically connected to second conductive lines disposed at a second side of the memory string.10-07-2010

Jaeman Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090325066SECONDARY BATTERY HAVING IMPROVED FLEXIBILITY - A secondary battery with improved flexibility. The secondary battery includes: a substrate; a first electrode collector integrally formed with the substrate as one body; a first electrode material mixture layer; an electrolyte layer; a second electrode material mixture layer; and a second electrode collector having a metallic mesh structure integrally formed with the second electrode material mixture layer as one body, wherein the first electrode material mixture layer, the electrolyte layer, and the second electrode material mixture layer are sequentially formed on the first electrode collector in this order.12-31-2009

Jae Seung Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100002463DISPLAY APPARATUS OF PORTABLE TERMINAL - A display apparatus of a portable terminal are provided that includes a light source for generating and outputting internal light; a display device for receiving the internal light from the light source through its one side and refracting the incident internal light to its upper side; and a display mirror layer. The display mirror layer includes a half mirror layer for receiving the internal light refracted by the display device and allowing it to pass therethrough to the outside; and a flange mirror layer for receiving the internal light from the light source and reflecting it. The display apparatus is configured in such a way that a display mirror layer is placed between the display device and the display window, so that it can enhance the clarity of images displayed on the display area and improve the appearance of the portable terminal.01-07-2010

Jay-Bok Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20080203428MOS TRANSISTORS HAVING RECESSED CHANNEL REGIONS AND METHODS OF FABRICATING THE SAME - A MOS transistor having a recessed channel region is provided. A MOS transistor includes a source region and a drain region disposed in an active region of a semiconductor substrate and spaced apart from each other. A gate trench structure is disposed in the active region between the source and drain regions. A gate electrode is disposed in the gate trench structure. A gate dielectric layer is interposed between the gate trench structure and the gate electrode. A semiconductor region is disposed between the gate trench structure and the gate dielectric layer. The semiconductor region is formed of a different material from the active region. A method of fabricating the MOS transistor having a recessed channel region is also provided.08-28-2008

Jeehyuck Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100139443Damping System for Shift Cable - A damping system for a shift cable is disclosed, in which vibrations and noises that are generated by a transmission and transmitted into the interior of a vehicle through a shift cable are considerably reduced across a damper, that is positioned in a bottleneck section of a socket housing and contacts with bottleneck section, such that it is possible to effectively exclude vibrations and noises transmitted into the interior of a vehicle. Further, the present invention is advantageous in terms of the cost and weight, because a rubber damper is used instead of a mass damper, and it is possible to reduce vibrations and noises without increasing force for operating a shift lever and maximally prevent the function of reducing vibrations and noises from being deteriorated by frictional wear.06-10-2010
20110041644APPARATUS FOR REDUCING NOISE OF SHIFT CABLE - An apparatus for reducing noise of a shift cable, may include a stopper that is integrally formed with an inner cable of the shift cable, an anti-vibration member that is disposed around the inner cable and is spaced apart from the inner cable to selectively contact with the stopper, and a damper housing that retains the anti-vibration member and the stopper therein02-24-2011
20110056325NOISE REDUCTION APPARATUS FOR SHIFT CABLE - A noise reduction apparatus for a shift cable, may include a mounting socket that is fixed to a shift lever mounting bracket, with an inner cable of the shift cable therethrough, a cable connection pipe that has one side connected to a shift lever-sided end of an outer cable of the shift cable, and a housing connection pipe that has one end elastically-coupled to a shift lever-sided end of the cable connection pipe with a predetermined distance therebetween by a first antivibration member in a damper housing and the other end thereof elastically-connected to the shift lever mounting bracket by a second antivibration member in the mounting socket.03-10-2011

Ji Hoon Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090028725Hermetic compressor - A hermetic compressor for adjusting the length and cross sectional area of a communication path as a refrigerant flow passage, so as to attenuate a discharge pulsation and consequently, a vibration and noise thereof. The hermetic compressor, which includes a cylinder head having a discharge chamber to discharge a compressed refrigerant and a discharge muffler to receive the refrigerant discharged from the discharge chamber, further includes a communication path to communicate the discharge chamber and the discharge muffler with each other, so as to allow the refrigerant to flow from the discharge chamber into the discharge muffler, and an auxiliary communication tube to increase a length of the communication path for increasing a refrigerant flow distance. The auxiliary communication path reduces the cross sectional area of a refrigerant flow passage while increasing a refrigerant flow distance, thereby attenuating a low-frequency component of the discharge pulsation.01-29-2009
20100058816Drum type washing machine - Disclosed herein is a drum type washing machine including a body, a tub arranged in the body, and a drum rotatably installed in the tub, and an inner surface of a rear wall of the has a flat portion along a rotating direction of the drum.03-11-2010

Patent applications by Ji Hoon Choi, Hwaseong-Si KR

Jong-Ryun Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100073059Duty control circuit and semiconductor device having the same - A duty control circuit including a clock input unit connected to a first node and a second node, the clock input unit receiving an input clock signal through the first node and changing a voltage of the second node to one of a first voltage level and a second voltage level in response to respective low and high logic levels of the input clock signal, a slew controller connected to the second node, the slew controller including one or more switches controlled by respective control signals, the one or more switches providing one of the first voltage level and the second voltage level to the second node in response to the control signals such that a slew rate of a signal at the second node is varied, and a clock output unit, the clock output unit outputting an output clock signal having a duty that varies.03-25-2010

Jong-Sik Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100258526METHODS OF FORMING AN AMORPHOUS CARBON LAYER AND METHODS OF FORMING A PATTERN USING THE SAME - In a method of forming an ACL, a substrate is provided in a deposition chamber. A plasma deposition process is performed by providing a deposition gas into the deposition chamber to form the ACL on the substrate. The deposition gas includes a deposition source gas, a carrier gas and a control gas. The deposition source gas includes a hydrocarbon, and the control gas includes at least one of oxygen and oxycarbon.10-14-2010

Jung-Han Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090096552OVERLAY ELECTROMAGNETIC BANDGAP (EBG) STRUCTURE AND METHOD OF MANUFACTURING THE SAME - Provided is an electromagnetic bandgap (EBG) structure, and particularly, an overlay EBG structure in which a plurality of vias and a plurality of plates are formed at intervals on a central signal line in such a manner that the vias and plates extend vertically from a substrate in order to reduce leakage loss of an electromagnetic wave through the substrate. Therefore, it is possible to prevent an electromagnetic wave passing through a transmission line from being lost through the substrate, to obtain desired frequency characteristics by adjusting the dimensions of the vias and plates, and to manufacture the overlay EBG structure using an existing CMOS process without having to perform any additional process.04-16-2009
20090121811MULTILAYERED COPLANAR WAVEGUIDE FILTER UNIT AND METHOD OF MANUFACTURING THE SAME - A multilayered coplanar waveguide (CPW) filter unit and a method of manufacturing the same are provided. A plate having a capacitance element is formed on or below a CPW layer including a signal line for transmitting a signal and a ground plane. As the filter unit has a multilayered structure, characteristic impedance may be reduced without increasing the width of the signal line. Where an inductor line is inserted between the signal line and the plate, a clear frequency response curve may be obtained without performing an additional process or increasing the area of the filter unit.05-14-2009
20090140823BROADBAND MICROSTRIP BALUN AND METHOD OF MANUFACTURING THE SAME - A broadband microstrip balun and a method of manufacturing the same are provided. In the balun, transmission lines formed at different layers partially overlap in parallel with each other, and a common ground having a predetermined opening is inserted between the transmission lines. Thus, an unbalanced signal may be converted into a balanced signal in a broad frequency band using resonance of a common ground plate with the opening and a Bethe hall effect. Also, impedance matching is readily enabled, thereby reducing a parasitic element.06-04-2009
20090207077SWITCHED BEAM-FORMING APPARATUS AND METHOD USING MULTI-BEAM COMBINING SCHEME - Provided is a switched beam-forming apparatus which includes a beam-forming unit forming a plurality of beams using an array antenna, a beam selection adjusting unit measuring Quality of Service (QoS) values of each of a plurality of signals received through the plurality of beams, a beam selecting unit selecting at least two beams with high QoS from among the plurality of beams according to the results of the QoS measuring, and a beam combining unit combining the at least two beams selected by the beam selecting unit.08-20-2009
20090212885RESONATOR AND BANDPASS FILTER HAVING OVERLAY ELECTROMAGNETIC BANDGAP (EBG) STRUCTURE, AND METHOD OF MANUFACTURING THE RESONATOR - Provided is an Electromagnetic Bandgap (EBG) structure, particularly, a resonator and a bandpass filter having an overlay EBG structure, and a method of manufacturing the resonator. The resonator is manufactured by forming a transmission line and ground plates on a substrate, arranging a plurality of reflector units at regular intervals along the longitudinal direction of the transmission line, and removing at least one reflector among the plurality of reflectors, thus forming a common resonating mode. Therefore, since reflector units constructing capacitance components are separated from a substrate, it is possible to prevent electromagnetic waves from leaking out of the substrate and ensure a high Q characteristic in a high frequency environment due to a resonating unit formed between the reflector units.08-27-2009
20090270051BEAMFORMER AND BEAMFORMING METHOD - Disclosed are a beamformer and a beamforming method. The beamformer includes a plurality of dividers, each of which divides an input signal along a plurality of paths, an input switch which selects one of the dividers such that the input signal is input to the selected divider, a phase shifter which shifts phases of respective output signals from the divider, and an output switch which transmits the output signals from the phase shifter to an antenna.10-29-2009
20100244997WAVEGUIDE OF MULTI-LAYER METAL STRUCTURE AND MANUFACTURING METHOD THEREOF - A waveguide of a multi-layer metal structure and a manufacturing method thereof are provided, the method including applying a plurality of metal layers on a substrate and a plurality of insulating layers respectively between the respective metal layers. Accordingly, it is possible to minimize conductive loss by dispersing current uniformly through wide regions between a signal line and ground lines.09-30-2010

Patent applications by Jung-Han Choi, Hwaseong-Si KR

Junghwan Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100213992Delay locked loop circuit and operation method thereof - A delay locked loop (DLL) circuit includes an analog DLL core and a digital DLL core. The analog DLL core receives an input clock signal of a first operating frequency. The digital DLL core receives an input clock signal of a second operating frequency equal to or lower than the first frequency. The analog and digital DLL cores operate selectively. The DLL core also includes a selection circuit configured to select one of the first and second DLL cores. The selection circuit may operate in response to a detection signal from a frequency detector which detects the frequency of the input clock signal. The selection circuit may also operate in response to a column address strobe writing latency signal that indicates frequency information of the input clock signal.08-26-2010

Jung-Hwan Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100194457DELAY LOCKED LOOP CIRCUIT AND SEMICONDUCTOR MEMORY DEVICE INCLUDING THE SAME - A delay locked loop circuit includes: a delay locked loop block receiving an external clock and generating a delay locked internal clock; a duty cycle correcting block connected to the delay locked loop block and correcting the duty cycle of the internal clock; and an error detecting unit comparing the voltages of first and second pumping output nodes of the duty cycle correcting block to detect an operation error of the duty cycle correcting block.08-05-2010
20110109344Semiconductor devices having on-die termination structures for reducing current consumption and termination methods performed in the semiconductor devices - Example embodiments disclose a semiconductor device having an on-die termination (ODT) structure that reduces current consumption, and a termination method performed in the semiconductor device. The semiconductor device includes a calibration circuit for generating calibration codes in response to a reference voltage and a voltage of a calibration terminal connected to an external resistor and an on-die termination device for controlling a termination resistance of a data input/output pad in response to the calibration codes and an on-die termination control signal. The termination resistance of the data input/output pad is greater than a resistance of the calibration terminal.05-12-2011
20110116330SEMICONDUCTOR DEVICE HAVING ADDITIVE LATENCY - A semiconductor device receives a command corresponding to a memory access operation and performs the memory access operation after an additive latency period. The additive latency period begins when the command is received. The semiconductor device comprises a phase controller for controlling a phase of a clock signal and outputting a phase-controlled clock signal, and a controller for generating and outputting a control signal for enabling the phase controller that is disabled, at a predetermined time in the additive latency period.05-19-2011
20110153939SEMICONDUCTOR DEVICE, CONTROLLER ASSOCIATED THEREWITH, SYSTEM INCLUDING THE SAME, AND METHODS OF OPERATION - In one embodiment, the semiconductor device includes a data control unit configured to selectively process data for writing to a memory. The data control unit is configured to enable a processing function from a group of processing functions based on a mode register command during a write operation, the group of processing functions including at least three processing functions. The enabled processing function may be performed based on a signal received over a single pin associated with the group of processing functions. In another embodiment, the semiconductor device includes a data control unit configured to process data read from a memory. The data control unit is configured to enable a processing function from a group of processing functions based on a mode register command during a read operation. Here, the group of processing functions including at least two processing functions.06-23-2011
20110164462DELAY-LOCKED-LOOP CIRCUIT, SEMICONDUCTOR DEVICE AND MEMORY SYSTEM HAVING THE DELAY-LOCKED-LOOP CIRCUIT - A delay-locked-loop (DLL) circuit having a DLL that operates when an external clock signal has a low frequency and a DLL that operates when an external clock signal has a high frequency is disclosed. The DLL circuit includes a first DLL and second DLL. The first DLL adjusts a delay time of an external clock signal to generate a first internal clock signal synchronized with the external clock signal when the external clock signal has a low frequency. The second DLL adjusts the delay time of the external clock signal to generate a second internal clock signal synchronized with the external clock signal when the external clock signal has a high frequency.07-07-2011

Jung-Yun Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090008740Semiconductor Integrated Circuit Devices Having Conductive Patterns that are Electrically Connected to Junction Regions and Methods of Fabricating Such Devices - A semiconductor integrated circuit device includes a semiconductor substrate; a dummy pattern extending in one direction on the semiconductor substrate; a junction region electrically connecting the dummy pattern to the semiconductor substrate; and a voltage applying unit that is configured to apply a bias voltage to the dummy pattern.01-08-2009
20090237107Circuit having an active clock shielding structure and semiconductor intergrated circuit including the same - A circuit having an active clock shielding structure includes a logic circuit that receives a clock signal and performs a logic operation based on the clock signal, a power gating circuit that switches a mode of the logic circuit between an active mode and an sleep mode based on a power gating signal, a clock signal transmission line that transmits the clock signal to the logic circuit, and at least one power gating signal transmission line that transmits the power gating signal to the power gating circuit and functions as a shielding line pair with the clock signal transmission line.09-24-2009
20100231255Power Gating Circuit and Integrated Circuit Including Same - A power gating circuit includes a logic circuit, a switching element and a retention flip-flop. The logic circuit is coupled between a first power rail and a virtual power rail. The switching element selectively couples the virtual power rail to a second power rail in response to a mode control signal indicating an active mode or a standby mode. The retention flip-flop selectively performs a flip-flop operation or a data retention operation in response to a voltage of the virtual power rail.09-16-2010

Patent applications by Jung-Yun Choi, Hwaseong-Si KR

Kwang Jae Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20110094986AUXILIARY APPARATUS OF CARRIER FOR VEHICLES - Disclosed herein is an auxiliary apparatus of a carrier mounted to a rear portion of a vehicle, including a locking unit fastened to the carrier, the locking unit including a locking pin to be extracted or retracted in response to operation of a switch unit, a rotary plate rotatably coupled to the locking unit, and a fastening member mounted to the rotary plate, the fastening member having at least a fastening hole into which the locking pin is selectively inserted and locked according to the operation of the switch unit.04-28-2011
20110108592Bicycle Carrier for Vehicle - Disclosed herein is a bicycle carrier for a vehicle, which is housed in the rear bumper of the vehicle to be concealed and when necessary is drawn out from the rear bumper to carry a bicycle. The bicycle carrier includes a front frame positioned in a rear bumper of the vehicle and secured to a rear end of a vehicle body. A central frame perpendicularly passes through the front frame. A rear frame is secured to a rear end of the central frame. A folding unit couples each of opposite ends of the front frame with each of opposite ends of the rear frame and is folded to vary a distance between the front frame and the rear frame. A bicycle wheel support is provided on the folding unit. A bicycle body support is provided on the central frame.05-12-2011

Min Ho Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100157261Substrate Treating Apparatus - A photolithography process facility comprising a substrate treating apparatus, the substrate treating apparatus includes a temperature control plate controlling a temperature a substrate, a central supporter having a pin shape vertically penetrating the temperature control plate and supporting a central region of substrate, and a collision preventer preventing a collision between the substrate and the temperature control plate.06-24-2010

Mun-Cheol Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090066646Pointing apparatus, pointer control apparatus, pointing method, and pointer control method - Provided is a pointing apparatus, a pointer control apparatus, a pointing method, and a pointer control method to a pointing apparatus, a pointer control apparatus, a pointing method, and a pointer control method capable of recognizing image codes included in an image frame using an image sensor to determine a pointing direction, and continuously updating the gain between the displacement of the motion of the pointing apparatus and the displacement of the motion of a displayed pointer. The pointing apparatus includes an image receiving unit sensing image patterns that exist in a sensed region, among all of the image patterns arranged in a display region; an inertial sensor sensing an input motion using at least one of the acceleration and angular velocity that are generated due to the motion; and a coordinate determining unit determining moving coordinates that are moved from the central coordinates of the sensed image pattern by coordinate displacement corresponding to the sensed motion.03-12-2009
20090185755APPARATUS AND METHOD FOR REMOVING MOIRE PATTERN OF DIGITAL IMAGING DEVICE - An apparatus for and a method of removing a moire pattern of a digital imaging device are provided. It is determined whether or not a moire pattern is created based on an image frequency of a preview image and a spatial frequency of an image sensor, and when it is determined that a moire pattern is generated, an optical path of light incident to an image sensor is slightly changed to remove the moire pattern. Accordingly, image quality deterioration can be improved, and a problem of unnecessary filtering that causes deterioration of resolution even when there is no moire pattern can be enhanced.07-23-2009
20110133602PIEZOELECTRIC MOTOR - Provided is a piezoelectric motor including: a stator which includes first and second faces, wherein a plurality of piezoelectric elements are arranged on the first face, and a plurality of protrusions are formed on the second face; a rotor which is rotated by motions of waves of the stator generated by the piezoelectric elements; and a driver device which applies driving voltages to the piezoelectric elements, wherein polarization directions of the plurality of piezoelectric elements are vertical to a rotary face of the rotor.06-09-2011

Patent applications by Mun-Cheol Choi, Hwaseong-Si KR

Sang-Su Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20080250144METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION OF CONTENT DATA - Provided are a method and apparatus for controlling transmission of content data. In the method, a communication channel is initially established to transmit the content data, the content data is transmitted through the established communication channel, verification is performed a plurality of times to determine whether the content data is transmitted within an acceptable transmission range, and whether to continue the transmission of the content data is determined according to the verification result. Accordingly, when a client moves to a location outside a predetermined acceptable transmission range in a wireless environment, a server stops transmission of the content data. In addition, content data can be continuously transmitted regardless of interference caused by a temporary obstacle between a server and a client.10-09-2008
20100064378METHOD AND APPARATUS FOR MANAGING DIGITAL RIGHTS MANAGEMENT MODULE - Provided are a method and apparatus for managing a digital rights management (DRM) module. A DRM module for removing a DRM scheme applied to a content selected from among contents, and the content being protected with the DRM scheme, are received. The content is used by using the DRM module, and then the DRM module is partially or completely removed.03-11-2010

Seung-Man Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100140747Semiconductor devices - In a method of manufacturing a semiconductor device, a pad including at least one insulating interlayer and at least one conductive wiring may be formed in a pad area of a substrate. At least one wiring may be formed adjacent to the conductive wiring. At least one insulation layer may be formed adjacent to the insulating interlayer. At least one crack preventing structure may be formed in the insulation layer. The crack preventing structure may continuously extend in the insulation layer and portions of the insulation layer may also be continuous. When a semiconductor device includes at least one crack preventing structure disposed adjacent to a pad, a degradation of the semiconductor chip caused by an external impact and/or a stress may be efficiently prevented by the crack preventing structure.06-10-2010

Patent applications by Seung-Man Choi, Hwaseong-Si KR

Seung-Tae Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20110051254LIQUID LENS - A variable-focus liquid lens is provided. The liquid lens includes a membrane and a fluid. The membrane is made of a transparent elastomer, and the fluid fills a predetermined space to contact at least a lens surface of the membrane. The membrane and the fluid are respectively made of materials repulsive to each other, for example, hydrophilic and hydrophobic materials or oleophilic and oleophobic materials. Accordingly, a repulsive force between the fluid and the membrane can prevent the absorption or leaking of the fluid into/through the membrane.03-03-2011
20110051255FLUIDIC LENS AND METHOD OF MANUFACTURING THE SAME - A fluidic lens and method for manufacturing the same are provided. The fluidic lens includes a transparent optical fluid and a double elastomer membrane. An outer membrane of the double elastomer membrane that is externally exposed includes a Poly DiMethyl Siloxane (PDMS) elastomer, and an inner membrane of the double elastmoer membrane that makes contact with the optical fluid is transparent and includes an elastomer which has a low coherence with respect to the optical fluid.03-03-2011
20110116171ELECTROACTIVE POLYMER ACTUATOR AND METHOD OF MANUFACTURING THE SAME - A multilayer electroactive polymer actuator and a method of manufacturing the same. The multilayer electroactive polymer actuator is divided into an actuating area and a non-actuating area. A plurality of driving electrodes, each formed on a side of the respective polymer layer to correspond to the actuating area. A plurality of extension electrodes connected to the driving electrodes and a common electrode for vertically connecting the extension electrodes are formed to correspond to the non-actuating area. A via hole is formed through the plurality of non-actuating layers and has a diameter which increases in a stepwise manner upwards. The common electrode is formed in the via hole. The driving electrode includes an alloy of aluminum and copper. The extension electrode is formed of material having a small reactivity with respect to laser as compared to the reactivity of the polymer layer.05-19-2011

Shin-Il Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20110089421THIN FILM TRANSISTOR ARRAY PANEL AND METHOD FOR MANUFACTURING THE SAME - A thin film transistor array panel includes: a substrate; a signal line disposed on the substrate and including copper (Cu); a passivation layer disposed on the signal line and having a contact hole exposing a portion of the signal line; and a conductive layer disposed on the passivation layer and connected to the portion of the signal line through the contact hole, wherein the passivation layer includes an organic passivation layer including an organic insulator that does not include sulfur, and a method of manufacturing the thin film transistor prevents formation of foreign particles on the signal line.04-21-2011
20110133193THIN FILM TRANSISTOR SUBSTRATE AND THE METHOD THEREOF - A thin film transistor array panel includes a gate line, a gate insulating layer that covers the gate line, a semiconductor layer that is disposed on the gate insulating layer, a data line and drain electrode that are disposed on the semiconductor layer, a passivation layer that covers the data line and drain electrode and has a contact hole that exposes a portion of the drain electrode, and a pixel electrode that is electrically connected to the drain electrode through the contact hole. The data line and drain electrode each have a double layer that includes a lower layer of titanium and an upper layer of copper, and the lower layer is wider than the upper layer, and the lower layer has a region that is exposed. The gate insulating layer may have a step shape.06-09-2011

Soo-Hyung Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100181209METHOD OF ELECTRICALLY DETECTING BIOMOLECULE - Provided is a method of sensing biomolecules using a bioFET, the method including: forming a layer including Au on a gate of the bioFET; forming a probe immobilized on a substrate separated from the gate by a predetermined distance, and a biomolecule having a thiol group (—SH) which is incompletely bonded to the probe; reacting the probe with a sample including a target molecule; and measuring a current flowing in a channel region between a source and a drain of the bioFET.07-22-2010

Patent applications by Soo-Hyung Choi, Hwaseong-Si KR

Sung-Sok Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090044751STRUCTURE FOR PREVENTING GAP FORMATION AND PLASMA PROCESSING EQUIPMENT HAVING THE SAME - Plasma processing equipment having a structure for preventing gap formation includes: a chamber inside which a plasma environment is formed; an upper electrode positioned at a upper position of the chamber; an electrostatic chuck positioned at a lower position of the electrostatic chuck, having a lower electrode and holding a wafer on a top surface thereof; a ring positioned at an outer side of the electrostatic chuck; and a gap prevention unit for isolating from the outside a space between the electrostatic chuck and the ring.02-19-2009

Sung-Tae Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090096552OVERLAY ELECTROMAGNETIC BANDGAP (EBG) STRUCTURE AND METHOD OF MANUFACTURING THE SAME - Provided is an electromagnetic bandgap (EBG) structure, and particularly, an overlay EBG structure in which a plurality of vias and a plurality of plates are formed at intervals on a central signal line in such a manner that the vias and plates extend vertically from a substrate in order to reduce leakage loss of an electromagnetic wave through the substrate. Therefore, it is possible to prevent an electromagnetic wave passing through a transmission line from being lost through the substrate, to obtain desired frequency characteristics by adjusting the dimensions of the vias and plates, and to manufacture the overlay EBG structure using an existing CMOS process without having to perform any additional process.04-16-2009
20090121811MULTILAYERED COPLANAR WAVEGUIDE FILTER UNIT AND METHOD OF MANUFACTURING THE SAME - A multilayered coplanar waveguide (CPW) filter unit and a method of manufacturing the same are provided. A plate having a capacitance element is formed on or below a CPW layer including a signal line for transmitting a signal and a ground plane. As the filter unit has a multilayered structure, characteristic impedance may be reduced without increasing the width of the signal line. Where an inductor line is inserted between the signal line and the plate, a clear frequency response curve may be obtained without performing an additional process or increasing the area of the filter unit.05-14-2009
20090140823BROADBAND MICROSTRIP BALUN AND METHOD OF MANUFACTURING THE SAME - A broadband microstrip balun and a method of manufacturing the same are provided. In the balun, transmission lines formed at different layers partially overlap in parallel with each other, and a common ground having a predetermined opening is inserted between the transmission lines. Thus, an unbalanced signal may be converted into a balanced signal in a broad frequency band using resonance of a common ground plate with the opening and a Bethe hall effect. Also, impedance matching is readily enabled, thereby reducing a parasitic element.06-04-2009
20090207077SWITCHED BEAM-FORMING APPARATUS AND METHOD USING MULTI-BEAM COMBINING SCHEME - Provided is a switched beam-forming apparatus which includes a beam-forming unit forming a plurality of beams using an array antenna, a beam selection adjusting unit measuring Quality of Service (QoS) values of each of a plurality of signals received through the plurality of beams, a beam selecting unit selecting at least two beams with high QoS from among the plurality of beams according to the results of the QoS measuring, and a beam combining unit combining the at least two beams selected by the beam selecting unit.08-20-2009
20090212885RESONATOR AND BANDPASS FILTER HAVING OVERLAY ELECTROMAGNETIC BANDGAP (EBG) STRUCTURE, AND METHOD OF MANUFACTURING THE RESONATOR - Provided is an Electromagnetic Bandgap (EBG) structure, particularly, a resonator and a bandpass filter having an overlay EBG structure, and a method of manufacturing the resonator. The resonator is manufactured by forming a transmission line and ground plates on a substrate, arranging a plurality of reflector units at regular intervals along the longitudinal direction of the transmission line, and removing at least one reflector among the plurality of reflectors, thus forming a common resonating mode. Therefore, since reflector units constructing capacitance components are separated from a substrate, it is possible to prevent electromagnetic waves from leaking out of the substrate and ensure a high Q characteristic in a high frequency environment due to a resonating unit formed between the reflector units.08-27-2009
20090270051BEAMFORMER AND BEAMFORMING METHOD - Disclosed are a beamformer and a beamforming method. The beamformer includes a plurality of dividers, each of which divides an input signal along a plurality of paths, an input switch which selects one of the dividers such that the input signal is input to the selected divider, a phase shifter which shifts phases of respective output signals from the divider, and an output switch which transmits the output signals from the phase shifter to an antenna.10-29-2009
20100244997WAVEGUIDE OF MULTI-LAYER METAL STRUCTURE AND MANUFACTURING METHOD THEREOF - A waveguide of a multi-layer metal structure and a manufacturing method thereof are provided, the method including applying a plurality of metal layers on a substrate and a plurality of insulating layers respectively between the respective metal layers. Accordingly, it is possible to minimize conductive loss by dispersing current uniformly through wide regions between a signal line and ground lines.09-30-2010

Sung Uk Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090154190APPARATUS FOR AIMING LED HEADLAMP - Disclosed herein is an LED (light emitting diode) headlamp aiming apparatus, which aims a mounting module that is provided with LEDs and is installed in a headlamp housing. The LED headlamp aiming apparatus includes a vertical aiming unit, which is provided on the rear side of the mounting module and is coupled to the headlamp housing, a horizontal aiming unit, which is provided on the rear side of the mounting module and is coupled to the headlamp housing, and a pivot unit which is coupled to the headlamp housing and is provided under the lower portion of the mounting module to support the mounting module and provide the center of the aiming operation.06-18-2009
20110121733ADAPTIVE FRONT LIGHTING SYSTEM AND CONTROL METHOD OF THE SAME - Provided is an Adaptive Front Lighting System and a control method thereof, which includes a motor driver which controls a beam irradiation direction of a headlamp by operating a motor coupled to the headlamp according to a motor control signal, and generates a motor fault signal when fail occurs in the motor, a power supply unit which controls a magnitude of electric power supplied to the headlamp according to a power control signal, and a controller which selectively outputs the power control signal to the power supply unit according to the motor fault signal of the motor driver.05-26-2011
20110125373ADAPTIVE FRONT LIGHTING SYSTEM FOR PERFORMING HIGHWAY AND URBAN DISTRICT MODES OF FRONT LIGHTING - An adaptive front lighting system for performing highway and urban district modes of front lights is provided, which includes a leveling actuator rotating a light source of front lights of a vehicle in upward and downward directions, and a control unit judging a driving state of the vehicle as either of a highway driving state and an urban district driving state in accordance with a driving condition of the vehicle and determining a degree of rotation of the light source performed by the leveling actuator in accordance with a result of judgment. The driving condition includes at least one of a vehicle speed, external illumination, and frequency of vehicle stops.05-26-2011
20110128748METHOD OF CONTROLLING ADAPTIVE HEADLAMP - A method of controlling an adaptive head lamp including a control unit for detecting a driving signal of a vehicle to control an actuator which controls the head lamp in a horizontal or vertical direction in accordance with a control signal of the control unit, may include steps of, a) verifying whether an ignition of the vehicle is turned on or off, b) after the ignition of the vehicle is verified, driving the actuator to move the head lamp to a rightmost or leftmost position in the horizontal direction, or a lowermost or uppermost position in the vertical direction, c) driving the actuator by a predetermined number of pulses previously set in a micro stepping manner in a direction opposite to a driving direction of the headlamp at the step b), and d) setting a position of the head lamp determined at the step c) as an initial position.06-02-2011
20110133647METHOD AND APPARATUS FOR PROVIDING HIGH BEAM IN LED HEADLAMP - A method for selectively providing a low beam state and a high beam state of an LED headlamp, may include driving an engine of a vehicle, switching on a multi-function switch to turn on at least a second LED module to emit a high beam after driving the engine to perform the high beam state of the LED headlamp, and converting a low beam state of at least a first LED module into a high beam state to perform the high beam state of the LED headlamp.06-09-2011

Sung-Up Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20080229090Memory Card, Memory System Including the Same, and Operating Method thereof - Provided is a memory card device. The memory card device includes a flash memory and a controller. The flash memory includes a boot area storing boot data, and a user area storing user data. The controller accesses the boot area or the user area according to an external command. Boot data can be stored in a memory card integrated in an electronic device. Also, when a host requests an access to boot data/user data stored in the memory card, the boot data/user data can be accessed under control of the controller.09-18-2008
20090044077FLASH MEMORY SYSTEM HAVING ENCRYPTED ERROR CORRECTION CODE AND ENCRYPTION METHOD FOR FLASH MEMORY SYSTEM - A flash memory system includes a flash memory for storing input data, and a memory controller controlling the flash memory, wherein the memory controller generates a first error correction code corresponding to the input data, and encrypts the first error correction code, and the flash memory includes a main area for storing the input data and a spare area for storing the encrypted first error correction code.02-12-2009
20110107076SYSTEM COMPRISING ELECTRONIC DEVICE AND EXTERNAL DEVICE STORING BOOT CODE FOR BOOTING SYSTEM - An electronic information system comprises an external storage device and an application processor. The external storage device stores boot code and the application processor is adapted to receive the boot code from the external storage device and to perform a system booting operation during a power-up operation by executing the boot code.05-05-2011
20110153921System Embedding Plural Controller Sharing Nonvolatile Memory - An embedded memory card system includes a first CPU, a second CPU, a nonvolatile memory storing data, and a device busy state machine selecting one of the first CPU and the second CPU to access the nonvolatile memory. The nonvolatile memory is accessed by the one of the first CPU and the second CPU selected by the device busy state machine.06-23-2011

Patent applications by Sung-Up Choi, Hwaseong-Si KR

Sun-Hyung Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100141887LIQUID CRYSTAL DISPLAY APPARATUS - A liquid crystal display (LCD) apparatus includes a first substrate including a switching element and a pixel electrode, the pixel electrode electrically connected to the switching element, and a second substrate disposed over the first substrate, the second substrate including a common electrode having a first slit and a second slit, wherein the first slit divides a unit pixel area into a plurality of domains, and the second slit partially overlaps the pixel electrode and is disposed to correspond to a boundary area of adjacent unit pixel areas.06-10-2010
20100177256THIN FILM TRANSISTOR SUBSTRATE AND LIQUID CRYSTAL DISPLAY HAVING THE SAME - A thin film transistor (TFT) substrate that may not have display quality degradation due to an image sticking phenomenon and a liquid crystal display having the same are disclosed for embodiments. The TFT substrate, according to one embodiment of the present invention, includes an insulating substrate, a plurality of gate lines and a plurality of data lines arranged in a matrix defined by the crossing of the gate lines and the data lines on the insulating substrate, a plurality of thin film transistors each electrically connected to the gate lines and of the data lines at crossing points of the gate lines and the data lines, a plurality of pixel electrodes each connected to the thin film transistors and partially overlapping a previous gate line, and a blocking electrode formed between each pixel electrode and its adjacent pixel electrode in parallel with the gate lines.07-15-2010

Patent applications by Sun-Hyung Choi, Hwaseong-Si KR

Sun-Rock Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100034566LIGHT ABSORBENT MEMBER, HEATING DEVICE, FIXING DEVICE AND IMAGE FORMING APPARATUS EMPLOYING THE SAME - Disclosed are a novel light absorptive member, a heating device employing such light absorptive member, a fixing device employing such heating device and an image forming apparatus that uses the fixing device. The light absorptive member includes nano-rods dispersed therein, and can increase absorption efficiency of a heating device, such as, for example, a fixing device that uses a light source as a radiant heat source, due to the surface plasmon resonance phenomenon that occurs when the wavelength(s) of the light corresponds the peak wavelength(s) of the absorptive rate for the light based on the aspect ratio(s) of the nano-rods.02-11-2010
20100111580LIGHT ABSORPTION DEVICE, FIXING UNIT COMPRISING THE LIGHT ABSORPTION DEVICE AND IMAGE FORMING APPARATUS COMPRISING THE FIXING UNIT - Disclosed are a light absorption device, a fixing unit including the same and an image forming apparatus including such fixing unit. The light absorption device includes a plurality of dielectric layers containing nano-rods. Surface plasmon resonance generated in response to certain wavelengths corresponding to the dielectric constants of the dielectric layers can result in an improvement in the light absorption efficiency. Further improvements can be realized by adjusting the dielectric constants of the dielectric layers.05-06-2010
20100129125LIGHT-ABSORPTIVE DEVICE, FIXING UNIT USING THE LIGHT-ABSORPTIVE DEVICE, AND IMAGE FORMING APPARATUS - A light-absorptive device for absorbing light includes a light source configured to emit light and a light-absorptive element configured to absorb the light emitted from the source. The light-absorptive element includes a light-absorptive layer in which a nano-component comprised of one or more nano particles coated with a shape keeping agent is dispersed. The aspect ratio(s) and/or the dielectric constant of the light-absorptive layer may be selectively varied to realize a peak wavelength of absorption spectrum that corresponds to the wavelength(s) of the light emitted by the light source. The light-absorptive device may be incorporated as a heating unit, such as a fixing unit of an image forming apparatus to fix toner images on to a recording medium.05-27-2010
20100157306APPARATUS AND METHOD FOR DETECTING SURFACE PLASMON RESONANCE - Disclosed are an apparatus and a method for detecting a surface plasmon resonance. The apparatus may radiate a polarized beam of light to a device, such as a surface plasmon resonance generator, and may measure variations in a temperature of the device to detect whether a surface plasmon resonance has occurred. The detection of a surface plasmon resonance may be associated with the presence of a particular material such as volatile organic compounds (VOCs) or materials disrupting ozone, for example.06-24-2010
20100202272METHOD OF FABRICATING NANOROD INFORMATION STORAGE MEDIUM - A method of fabricating an information storage medium, the method including forming a plurality of nanorod recording layers on a substrate by sputtering using a mask having a plurality of nanorod patterns.08-12-2010

Won-Mook Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100103121TOUCH SCREEN PANEL INTEGRATED INTO LIQUID CRYSTAL DISPLAY, METHOD OF MANUFACTURING THE SAME, AND TOUCH SENSING METHOD - A touch screen panel includes: a first substrate and a second substrate, which face each other with respect to a liquid crystal interposed therebetween; and a touch sensor interposed between the first substrate and the second substrate. The touch sensor includes: a plurality of first touch signal lines disposed on the first substrate and extending in a first direction; a protective layer disposed on the first substrate, the protective layer including a dielectric material and substantially the plurality of first touch signal lines; a plurality of contact pads disposed on the protective layer; a plurality of second touch signal lines disposed on the second substrate and extending in a second direction perpendicular to the first direction; and a plurality of touch sensor spacers electrically connected to the plurality of second touch signal lines. A gap between the touch sensor spacers and the plurality of contact pads is defined, and the spacers are disposed to face the plurality of contact pads.04-29-2010
20100178464METHOD FOR CHEMICAL MODIFICATION OF A GRAPHENE EDGE, GRAPHENE WITH A CHEMICALLY MODIFIED EDGE AND DEVICES INCLUDING THE GRAPHENE - A method for chemical modification of graphene includes dry etching graphene to provide an etched graphene; and introducing a functional group at an edge of the etched graphene. Also disclosed is graphene, including an etched edge portion, the etched portion including a functional group.07-15-2010
20110033677GRAPHENE BASE AND METHOD OF PREPARING THE SAME - A graphene base, including: graphene; and a substrate, wherein the graphene is formed directly on at least one surface of the substrate, and at least about 90 percent of an area of the surface of the substrate does not have a graphene wrinkle.02-10-2011
20110095268TRANSISTOR AND FLAT PANEL DISPLAY INCLUDING THIN FILM TRANSISTOR - A transistor includes at least three terminals comprising a gate electrode, a source electrode and a drain electrode, an insulating layer disposed on a substrate, and a semiconductor layer disposed on the substrate, wherein a current which flows between the source electrode and the drain electrode is controlled by application of a voltage to the gate electrode, where the semiconductor layer includes a graphene layer and at least one of a metal atomic layer and a metal ion layer, and where the metal atomic layer or the metal ion layer is interposed between the graphene layer and the insulating layer.04-28-2011
20110104442GRAPHENE SHEET, GRAPHENE BASE INCLUDING THE SAME, AND METHOD OF PREPARING THE GRAPHENE SHEET - A graphene sheet including graphene comprising ten or fewer wrinkles per 1,000 square micrometers of the graphene.05-05-2011
20110111577SEMICONDUCTOR CARBON NANOTUBES AND METHOD OF SELECTIVELY GROWING SEMICONDUCTOR CARBON NANOTUBES USING LIGHT IRRADIATION - A method of selectively growing a plurality of semiconductor carbon nanotubes using light irradiation. The method includes disposing a plurality of nanodots, which include a catalyst material, on a substrate; growing a plurality of carbon nanotubes from the plurality of nanodots, and irradiating light onto the nanodot to selectively grow the plurality of semiconductor carbon nanotubes.05-12-2011
20110127471DOPED GRAPHENE, METHOD OF MANUFACTURING THE DOPED GRAPHENE, AND A DEVICE INCLUDING THE DOPED GRAPHENE - A composition including graphene; and a dopant selected from the group consisting of an organic dopant, an inorganic dopant, and a combination including at least one of the foregoing.06-02-2011
20110127497ORGANIC LIGHT EMITTING DEVICE USING GRAPHENE - An organic light emitting device including graphene. The organic light emitting device includes a first electrode that is interposed between a transparent substrate and an organic layer emitting light, and includes graphene having a thickness of about 0.1 nanometer (nm) to about 10 nanometers (nm).06-02-2011
20110129675MATERIAL INCLUDING GRAPHENE AND AN INORGANIC MATERIAL AND METHOD OF MANUFACTURING THE MATERIAL - A material including: graphene; and an inorganic material having a crystal system, wherein a crystal plane of the inorganic material is oriented parallel to the (0001) plane of the graphene. The crystal plane of the inorganic material has an atomic arrangement of a hexagon, a tetragon, or a pentagon.06-02-2011

Wook Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20080219230Method and system for authentication of WLAN terminal interworking with broadband wireless access network - A method and a system for interworking with a Broadband Wireless Access (BWA) network in a Wireless Local Area Network (WLAN) terminal. According to the method, a relay station for connecting the Wireless Local Area Network (WLAN) terminal with the Broadband Wireless Access (BWA) network sets a connection with the Broadband Wireless Access (BWA) network through an initialization process. A user authentication with the Wireless Local Area Network (WLAN) terminal is performed by the relay station in compliance with a Wireless Local Area Network (WLAN) protocol. A user authentication with a Broadband Wireless Access (BWA) network Access Control Router (ACR) is performed in compliance with a Broadband Wireless Access (BWA) network protocol by the relay station in place of the Wireless Local Area Network (WLAN) terminal.09-11-2008
20090028093METHOD FOR TRANSMITTING/RECEIVING DATA WITH TRANSFER OBLIGATION DELEGATED IN WSN - A method for transmitting/receiving data with transfer obligation delegated in a Wireless Sensor Network (WSN) reduces the time and power spent by a transmitting apparatus to wait for acknowledgment that a data transfer was successful. The method for transmitting data from a transmitting end to a receiving end through a set transfer route by multiple data transmit/receive apparatuses provided in a Wireless Sensor Network (WSN), typically includes the steps of: performing temporary storage of data to be transmitted on receiving a request to transmit data; requesting a data transmit/receive apparatus, existing on a next route, to transmit data while transmitting data to a data transmit/receive apparatus which is set as a transfer route; and confirming the delivery of the data to the data transmit/receive apparatus set as the transfer route, and then deleting the temporarily stored data frame.01-29-2009
20090029650METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA IN WIRELESS SENSOR NETWORK - A method and apparatus for transmitting/receiving data in a Wireless Sensor Network (WSN). The method typically includes the steps of: ascertaining characteristics of data whose transfer is requested; ascertaining a Link Quality Indication Value (LQIV); determining a level of a link state in consideration of the characteristics of the data and the LQIV; and controlling the link transfer of the data in consideration of the level of the link state. The apparatus includes a module for transmitting/receiving data in the network layer thereof having a link level determination unit for predefining a level of a link state, depending on characteristics of data and a Link Quality Indication Value (LQIV) to store a predefined level of the link state, and to determine a level of the link state. A link control unit controls the link transfer of the data in consideration of the determined level of the link state.01-29-2009
20090086041METHOD AND SYSTEM FOR CONTROLLING CAMERA THROUGH WIRELESS SENSOR NETWORK - A method for controlling a camera through a Multi-Hop-based wireless sensor network includes: sensing whether an event occurs or not in a corresponding area and transmitting position information on the corresponding area and type information on the event, converting the received position information on the event into a movement control signal for the camera, calculating camera driving values in a left/right direction and an up/down direction using the converted signal, controlling a zoom-in operation of the camera lens using the calculated camera driving values according to the received event type and photographing an object located in the corresponding direction, and transmitting the photographed images over the outer network.04-02-2009
20090133122METHOD AND SYSTEM FOR DETECTING SUSPICIOUS FRAME IN WIRELESS SENSOR NETWORK - A method and system for detecting a suspicious frame in a wireless sensor network that includes: a plurality of sensor nodes, for sending sensed data and data regarding an upper-level node and cluster head node. A data collecting node receives data from the sensor nodes, sends information, and extracts data received from the sensor nodes. A first probability of occurrence of the routing path is computed with respect to training frames, and a second probability of occurrence of a source routing path is computed using the first probability. The second probability is compared with a reference value, and displays an indication notifying an abnormality of the source node according to when the second probability and the reference value.05-21-2009
20100026686METHOD, APPARATUS AND SYSTEM FOR DISPLAYING TOPOLOGY INFORMATION OF WIRELESS SENSOR NETWORK - A method, apparatus and system for displaying topology information of a wireless sensor network includes a plurality of sensor nodes. The method typically includes: receiving node information collected and extracted from the sensor nodes; comparing the received node information with stored node information; computing, when the received node information is unequal to the stored node information, visualization information on a sensor node whose information is not present in the stored node information; and displaying the sensor nodes on concentric circles using the visualization information.02-04-2010

Patent applications by Wook Choi, Hwaseong-Si KR

Woong Ii Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090003435Method, medium, and apparatus for encoding and/or decoding video data - A method, medium, and apparatus for encoding and/or decoding video by generating a scalable bitstream compatible with at least two video formats generating an enhancement layer identifier, generating a base layer bitstream by encoding a chrominance component of a low-frequency band and a luminance component that are included in video, and generating an enhancement layer bitstream by encoding a chrominance component of the remaining frequency band other than the low-frequency band that is included in the video.01-01-2009
20090097549Method, medium, and apparatus for encoding and/or decoding video - A method, medium, and apparatus for encoding and/or decoding video by generating a scalable bitstream formed with a base layer bitstream and an enhancement layer bitstream in order to provide forward compatibility, the scalable bitstream comprising a base layer bitstream including a base quantized level and a base quantization parameter corresponding to a base bit-depth, and an enhancement layer bitstream including a residue between an extended quantized level and a compensated quantized level that is predicted from the base quantized level, and additional quantization information for refining the difference between an extended bit-depth and the base bit-depth, wherein a process for improving image quality is applied to at least one of the base layer and the enhancement layer.04-16-2009
20090190843Image encoding apparatus and image decoding apparatus - Provided are an image encoding apparatus and an image decoding apparatus. The image encoding apparatus includes a compression unit compressing a reference image by reducing a resolution of the reference image in a resolution adjustment mode determined from among at least two resolution adjustment modes according to a distribution of values of pixels of the reference image, and providing the compressed reference image to a memory, a reconstruction unit reconstructing the reference image by increasing a resolution of the compressed reference image stored in the memory to an original resolution, a predictive encoding unit performing predictive encoding on a current image by using the reconstructed reference image, and a predictive decoding unit generating the reference image by performing decoding on the predictive encoded current image, and providing the generated reference image to the compression unit.07-30-2009
20090279614Apparatus and method for managing reference frame buffer in layered video coding - An apparatus for encoding or decoding an image by storing and managing a reference frame used to encode or decode an encoding target image frame. To encode image frames classified into a plurality of layers, the apparatus may include a layer identification unit identifying a layer that includes a first encoding target frame, a frame storage unit storing at least one storage frame associated with the first encoding target frame, a reference frame selector selecting a reference frame from the at least one storage frame, based on the identified layer, and a frame encoder encoding the first encoding target frame by referring to the selected reference frame, wherein the frame storage unit stores the first encoding target frame as a storage frame associated with a second encoding target frame.11-12-2009

Woon-Il Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090110069Method and apparatus encoding and/or decoding image by using diffusion properties of the image - Provided are a method and apparatus for encoding/decoding a moving picture by using the diffusion properties of the image. In the method, a value of a current pixel is predicted from the values of neighboring pixels of the current pixel, based on the variations between the values of the neighboring pixels present in directions toward the current pixel; a correction value of the predicted value is calculated from at least one variation from among the variations; the value of the current pixel is determined by reflecting the correction value into the predicted value; and then, the original image is reconstructed using the determined value of the current pixel.04-30-2009

Young-Hun Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20110050863DISPLAY APPARATUS AND CONTROL METHOD THEREOF - Provided is a display apparatus and a control method thereof which includes receiving a three-dimensional image signal comprising left eye image data and right eye image data between successive first and second vertical blank sections; generating a third vertical blank section which divides the left eye image data and the right eye image data between the first and second vertical blank sections of the received image signal if the received image signal is determined as a three-dimensional image signal; and displaying an image based on the image signal having the generated third vertical blank section.03-03-2011
20110115789IMAGE DISPLAYING APPARATUS AND IMAGE SIGNAL PROCESSING METHOD OF THE SAME - Disclosed is an image displaying apparatus for displaying a received three-dimensional (3D) image signal as a two-dimensional (2D) image or a 3D image, and a method for performing the same. In the method, the 3D image signal is divided into left and right eye signals. Based on a user's selection, the 3D image signal is either displayed as the 3D image, by alternately displaying the left and right eye signals, or displayed as the 2D image, by consecutively displaying either the left eye signals or the right eye signals.05-19-2011
201101490523D IMAGE SYNCHRONIZATION APPARATUS AND 3D IMAGE PROVIDING SYSTEM - A three dimensional (3D) image synchronization apparatus and a 3D image providing system are provided. The 3D image synchronization apparatus synchronizes at least one input 3D image using a single sync signal and outputs the synchronized 3D image. Accordingly, the plurality of display apparatus are synchronized with one another according to a single sync signal.06-23-2011
20110164118DISPLAY APPARATUSES SYNCHRONIZED BY ONE SYNCHRONIZATION SIGNAL - A display system is provided. The display system includes a plurality of display apparatuses synchronized by a synchronization signal to display an input image. Accordingly, the plurality of display apparatuses may synchronize a 3D image to be displayed, and thus a user may watch the 3D image displayed on the plurality of display apparatuses using 3D glasses.07-07-2011

Yunseok Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20100102428SEMICONDUCTOR PACKAGE - A semiconductor package that includes a first semiconductor device mounted on a package substrate and includes an inactive surface having a cavity and an active surface opposite to the inactive surface, a second semiconductor device that is disposed on the active surface and electrically connected to the first semiconductor device, and a third semiconductor device that is disposed on the inactive surface in the cavity and electrically connected to the first semiconductor device. The first semiconductor device includes at least one first through electrode electrically connecting the first semiconductor device to the third semiconductor device through the first semiconductor device.04-29-2010

Yun-Seok Choi, Hwaseong-Si KR

Patent application numberDescriptionPublished
20090284883ELECTRONIC DEVICE HAVING ELECTROSTATIC DISCHARGE PROTECTION DEVICE AND METHODS OF FABRICATING THE SAME - An electronic device having an electrostatic discharge (ESD) protection device and methods of fabricating the same. The electronic device can include an electronic element to be protected from electrostatic discharge. The electronic element can be installed on a substrate. The substrate can include a ground electrode disposed on the substrate, and a first element electrode disposed at a different level from the ground electrode on the substrate to overlap a part of the ground electrode and to electrically connect to the electronic element installed to the substrate. A dielectric layer can be disposed between the ground electrode and the first element electrode, wherein the ground electrode, the first element electrode and the dielectric layer disposed therebetween constitute an electrostatic discharge (ESD) protection device.11-19-2009
20100006869SEMICONDUCTOR CHIP, WIRING SUBSTRATE OF A SEMICONDUCTOR PACKAGE, SEMICONDUCTOR PACKAGE HAVING THE SEMICONDUCTOR CHIP AND DISPLAY DEVICE HAVING THE SEMICONDUCTOR PACKAGE - A semiconductor chip can include a semiconductor substrate, an input portion and an output portion. A circuit element can be formed in the semiconductor substrate. The input portion can be formed on the semiconductor substrate. The input portion can include a first input pad to receive an input signal from the outside and a second input pad spaced apart from the first input pad, the second input pad being electrically connected to the first input pad through an external connection line such that the second input pad inputs the input signal to the circuit element. The output portion can be formed on the semiconductor substrate. The output pad can include an output pad to output an output signal from the circuit element.01-14-2010
20100013066SEMICONDUCTOR PACKAGE - A semiconductor package includes a main substrate, a semiconductor chip having a first side and a second side, the first side of the semiconductor chip disposed on the main substrate and electrically connected to the main substrate, and a conductive network formed on the second side of the semiconductor chip.01-21-2010
20100044851Flip chip packages - Flip chip packages and methods of manufacturing the same are provided, the flip chip packages may include a package substrate, a semiconductor chip, conductive bumps, a ground pattern and an underfilling layer. The semiconductor chip may be over the package substrate. The conductive bumps may be between the semiconductor chip and the package substrate to electrically connect the semiconductor chip and the package substrate with each other. The ground pattern may ground one of the package substrate and the semiconductor chip. The underfilling layer may be between the package substrate and the semiconductor chip to surround the conductive bumps. The underfilling layer may have a diode selectively located between the ground pattern and the conductive bumps by electrostatic electricity applied to the underfilling layer to protect the semiconductor chip from the electrostatic electricity.02-25-2010

Patent applications by Yun-Seok Choi, Hwaseong-Si KR