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Cha, Yongin-Si
Choong-Yul Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20080224795 | ACTIVE BALUN - An active balun for improving a phase matching characteristic includes a transistor part which has an input terminal receiving an input signal and first and second output terminals which output signals corresponding to the input signal, and a capacitance matching part provided on the side of one of the first and second output terminals which matches capacitances as seen from the first and second output terminals. The capacitance matching part may be composed of a transistor which bleeds a current from the one output terminal. | 09-18-2008 |
| 20080315921 | DIGITAL FREQUENCY DETECTOR AND DIGITAL PHASE LOCKED LOOP USING THE DIGITAL FREQUENCY DETECTOR - A digital frequency detector and a digital phase locked loop (PLL) are provided. The digital frequency detector includes a first conversion unit which outputs a first frequency as first frequency information of a digital type using a first ring oscillator that operates in a high-level period of the first frequency, a second conversion unit which outputs a second frequency as second frequency information of a digital type using a second ring oscillator that operates in a high-level period of the second frequency, and an operation unit which outputs a digital frequency for the first frequency by calculating a ratio of the first frequency information to the second frequency information. | 12-25-2008 |
| 20090027088 | HIGH RESOLUTION TIME DETECTING APPARATUS USING INTERPOLATION AND TIME DETECTING METHOD USING THE SAME - A high resolution time detecting apparatus using interpolation and a time detecting method using the same are provided. The time detecting apparatus includes a delayer which generates delayed signals by sequentially delaying a reference signal using a plurality of delay elements, a latch unit which outputs latch signals using the delayed signals, and an interpolation unit which outputs interpolated signals using input and output signals of the delay elements. As a result, a high resolution TDC using an interpolation and a time detecting method using the same provide improved performance of digital PLL, high resolution digital signal output at a low power consumption, and controlled circuit size. | 01-29-2009 |
| 20090140815 | LOW NOISE AMPLIFIER FOR ULTRA WIDE BAND - A low noise amplifier (LNA) for ultra wide band receives and amplifies identical RF signals in different frequency bands, and includes more than one pair of narrow band LNAs coupled in parallel, and a load circuit which increases load impedance of the entire circuit of the narrow band LNAs. The LNA can not only amplify the RF signal in the UWB but also obtain the low noise and the high gain that are features of the conventional narrow band LNA. | 06-04-2009 |
Hey-Yeon Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100092818 | GAS-LIQUID SEPARATOR, HYDROGEN GENERATING APPARATUS, AND FUEL CELL GENERATION SYSTEM HAVING THE SAME - Disclosed are a gas-liquid separator, a hydrogen generating apparatus, and a fuel cell generation system, having the same. The gas-liquid separator can include an inflow path, into which a fluid material having a liquid and a gas flows; a centrifugal path, connected to the inflow path to receive the fluid material and formed spirally such that the fluid material is separated into the liquid and the gas by difference in centrifugal forces, an outer side of the centrifugal path having stronger affinity for the liquid than an inner side of the centrifugal path; and an outflow path, connected to the centrifugal path and discharging the liquid and the gas, which have been separated in the centrifugal path. With the present invention, it is possible to efficiently separate gas such as hydrogen and liquid such as a electrolyte solution without complex devices. | 04-15-2010 |
Hye Young Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100183156 | AUDIO SYSTEM AND METHOD TO CONTROL OUTPUT OF THE AUDIO SYSTEM - An audio system and a method to control the output of the audio system are provided. The audio system includes a source unit having an audio signal, a receiver to receive the audio signal and generate a cancellation signal to cancel the audio signal, a first speaker to output the audio signal, and a second speaker to output the cancellation signal. | 07-22-2010 |
In-Hwan Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20120115003 | BATTERY MODULE - A battery module includes a plurality of rechargeable batteries; a housing containing the rechargeable batteries; first heat dissipation ribs protruded from the housing and having a shape of a polygon or a closed curve; and second heat dissipation ribs protruded from the housing and linearly formed to couple the first heat dissipation ribs to each other. | 05-10-2012 |
Jae-Deok Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20080309291 | COMPUTER SYSTEM AND CONTROL METHOD THEREOF - A computer system, including a converter to convert a level of an input voltage into a charging voltage and to output the charging voltage to a battery unit; a converter driving unit to output a driving signal to the converter so that the charging voltage outputted from the converter is able to reach a predetermined target value; and a controller to control the converter driving unit to alternate the driving signal between supplying the charging voltage and suspension of the charging voltage. | 12-18-2008 |
| 20090021965 | ELECTRONIC DEVICE CAPABLE OF SUPPLYING POWER BI-DIRECTIONALLY THROUGH PORT AND METHOD OF OPERATING THE SAME - An electronic device having a main body with a system load and capable of supplying power bi-directionally through a port, and an operation method thereof, the electronic device including: a power control apparatus to recognize a connection of an external power source for supplying power to the system load, and to control a startup of the external power source and a distribution of the power supplied from the external power source. | 01-22-2009 |
| 20090029660 | POWER APPARATUS, WIRELESS COMMUNICATION APPARATUS HAVING THE SAME, AND POWER SUPPLYING METHOD THEREOF - A wireless communication apparatus includes: a wireless communication unit which performs wireless communication; a converter which converts an input voltage into an output voltage in a switched-mode to supply the output voltage to the wireless communication unit; and a frequency adjusting unit which adjusts a frequency of a high frequency noise caused by a parasitic component of the converter, if the converter is switched, to prevent the frequency of the high frequency noise from interfering with a frequency of the wireless communication performed by the wireless communication unit. | 01-29-2009 |
| 20090037754 | BATTERY MODULE, COMPUTER SYSTEM HAVING THE SAME, AND CONTROL METHOD OF THE COMPUTER SYSTEM - A computer system includes a device which operates depending on a clock frequency; a battery unit which comprises a plurality of battery cells and supplies power to the device; a temperature sensor which senses temperature of the battery cells; and a controller which decreases the clock frequency if the sensed temperature is beyond a first preset critical point. | 02-05-2009 |
| 20100013453 | DC/DC CONVERTER, COMPUTER SYSTEM HAVING THE SAME, AND DC/DC CONVERSION METHOD - A computer system including the same, and a DC/DC conversion method. The DC/DC converter includes: a filter part receiving an input voltage and outputting an output voltage converted in level from the input voltage; a plurality of switching parts switching so that the input voltage is selectively supplied to the filter part, wherein the switching parts are connected in parallel to the filter part at a phase voltage terminal; and a controller sequentially controlling switching of the plurality of switching parts so that the output voltage reaches a predetermined target value. | 01-21-2010 |
| 20120025767 | POWER SUPPLY DEVICE AND POWER SUPPLYING METHOD FOR POWER SUPPLY DEVICE - A power supply device includes a battery, a charging part charging the battery, a power input to receive adapter power from an adapter supplied with external power or power output from a similarly configured power supply device, a power output part to output the adapter power, the power output of a similarly configured power supply device, or the battery power of the battery, and a controller to control the input power to apply power to the charging part and the power output part when the input power is supplied to the power input part, and to control the battery to apply power to the power output part when the input power is not supplied to the power input part. Thus, the power supply device is capable of applying power from an adapter to a portable electronic device while charging an internal battery with the adapter power. | 02-02-2012 |
Jung-Bae Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110290276 | Laser Cleaning Device for Electrode Tab of Battery and Laser Cleaning Method Using the Same - A laser cleaning device, and a laser cleaning method using the same, for removing an electrolyte solution stuck to an electrolyte tab during a process of injecting the electrolyte solution are disclosed. The laser cleaning device for an electrode tab of a battery includes: a cleaning housing, in which a battery case for receiving an electrode group, an electrolyte solution and an electrode tab exposed to the outside are embedded; a laser generator which includes a laser source for generating a laser beam and an output controller for controlling output of the laser beam; a laser transmitter which transmits the laser beam generated by the laser generator; and a laser emitting unit which is installed inside the cleaning housing, and which irradiates the laser beam transmitted by the laser transmitter onto the electrode tab so as to remove liquid pollutants stuck to the electrode tab. The laser cleaning method comprises steps generally corresponding to the latter functions of the laser cleaning device. | 12-01-2011 |
Jun-Kyu Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20120107667 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; an electrolyte including a lithium salt and a non-aqueous organic solvent; and a separator interposed between the positive and negative electrodes and including a ceramic material having a first metal oxide-containing core and a second metal oxide shell disposed on the surface of the core. | 05-03-2012 |
Ki-Seok Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090051643 | BACKLIGHT ASSEMBLY, DISPLAY APPARATUS HAVING THE SAME, METHOD FOR DRIVING THE SAME, AND METHOD FOR DRIVING THE DISPLAY APPARATUS - In a backlight assembly, a display apparatus having the backlight assembly, a method for driving the backlight assembly and a method for driving the display apparatus, the backlight assembly includes a plurality of light sources and a light source driving unit. The light sources are disposed along a direction and emit light. The light source driving unit causes the light sources to sequentially emit light along the direction, and causes each of the light sources to emit light during a first emitting period of a time period, and then causes each of the light sources to emit light during a second emitting period of the time period. The time period is substantially the same as a single frame. Accordingly, each of the light sources emits light again after the light sources have emitted light once, so that motion blur in the display apparatus may be decreased. | 02-26-2009 |
Sang Hyun Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110317536 | CURRENT DRIVING CIRCUIT AND LIGHT STORAGE SYSTEM HAVING THE SAME - Disclosed herein are a current driving circuit and a light storage system having the same. The current driving circuit includes a plurality of channel circuits that include a first transistor into which the input current flows, a second transistor generating the output current by mirroring the input current, a plurality of switches connected between the first and second transistors in parallel and optionally electrically connecting the first and second transistors in response to the control signals, a controller optionally activating the control signals each corresponding to the switches according to the magnitude of the input current; and an adder that adds output currents of the channel circuits to generate driving current. The current driving circuit can stably supply the driving current while preventing a delay in the driving current. | 12-29-2011 |
Seung Kwon Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20120091694 | HAND CART FOR VEHICLE - A hand cart for a vehicle is provided, which includes a cart which is provided in a luggage board of the vehicle and has wheels mounted on a bottom surface of the cart, and a handle rotatably mounted on one side of the cart. The cart, which is in the form of a movable tray, is provided in a trunk of the vehicle to improve the productivity. | 04-19-2012 |
| 20120091745 | AUTO RETURN STRUCTURE OF LUGGAGE ROOM SCREEN - An auto return structure of a luggage room screen may include a guide portion formed to a luggage side trim toward the rear of a vehicle body, and a reinforcement board wherein the guide portion includes a guide groove formed to the luggage side trim toward the rear of the vehicle body and slidably receiving an end portion of the reinforcement board therein, a movement groove formed to connect from ends of the lower and upper surfaces of the guide groove toward an upper part of the vehicle body to guide the end portion of the reinforcement board toward the upper part of the vehicle, and a locking protrusion formed on an upper connection portion connecting the movement groove and the upper surface of the guide groove and to which the end portion of the reinforcement board may be selectively inserted and fixed. | 04-19-2012 |
Seung-Nam Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20080230853 | Transistor and method of manufacturing the same - In a transistor and a method of manufacturing the same, the transistor includes a channel layer arranged on a substrate, a source electrode and a drain electrode formed on the substrate so as to contact respective ends of the channel layer, a gate insulating layer surrounding the channel layer between the source electrode and the drain electrode, and a gate electrode surrounding the gate insulating layer. | 09-25-2008 |
| 20090121219 | Carbon nanotubes, method of growing the same, hybrid structure and method of growing the hybrid structure, and light emitting device - Provided is a method of growing carbon nanotubes (CNTs) by forming a catalyst layer that is used to facilitate growth of CNTs to have a multi-layer structure; and injecting a carbon-containing gas to the catalyst layer to grow CNTs, and light emitting devices fabricated by incorporating the CNTs grown. | 05-14-2009 |
| 20110177332 | Nanofiber-nanowire composite and fabrication method thereof - Example embodiments are directed to a nanofiber-nanowire composite includes a polymer nanofiber; and a plurality of nanowires of a metal oxide extending from inside to outside of the polymer nanofiber and covering the polymer nanofiber. According to example embodiments, a method of fabricating a nanofiber-nanowire composite includes forming a nanofiber including a metal seed; and growing nanowires of a metal oxide from the metal seed to the outside of the nanofiber. | 07-21-2011 |
| 20110204297 | Electroconductive fiber, a fiber complex including an electroconductive fiber and methods of manufacturing the same - An electroconductive fiber, a method of manufacturing an electroconductive fiber, and a fiber complex including an electroconductive fiber are provided, the electroconductive fiber includes an electroconductive polymer, an elastic polymer that forms a structure with the electroconductive polymer, and a carboneous material on at least one of the electroconductive polymer and the elastic polymer. | 08-25-2011 |
Seungyeob Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090317701 | Electrode assembly and secondary battery having the same - A secondary battery includes an electrode assembly, an open-topped can accommodating the electrode assembly, and a cap assembly sealing the can. The electrode assembly includes a positive electrode plate having a positive electrode coated portion and positive electrode non-coating portions, a negative electrode plate having a negative electrode coated portion and negative electrode non-coating portions, and a separator interposed between the positive and negative electrode plates and wound with the electrode plates. The positive electrode non-coating portion has a region where the height of the positive electrode non-coating potion is lower than that of the positive electrode coating portions. | 12-24-2009 |
| 20090317707 | LITHIUM SECONDARY BATTERY - Provided is a lithium secondary battery which is capable of preventing high-temperature short circuit by incorporation of a clad negative electrode tab having a nickel/copper bilayer structure. | 12-24-2009 |
Si-Young Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110272007 | ELECTRODE FOR DYE SENSITIZED SOLAR CELL, METHOD OF MANUFACTURING THE SAME, AND DYE SENSITIZED SOLAR CELL USING THE ELECTRODE - An electrode for a dye sensitized solar cell, the electrode including platinum having a controlled surface roughness and a specific surface area of platinum, a method of manufacturing the electrode, and a dye sensitized solar cell having excellent photoelectric conversion efficiency by including the electrode. | 11-10-2011 |
| 20120006410 | DYE FOR DYE-SENSITIZED SOLAR CELLS, METHOD OF PREPARING THE SAME, AND SOLAR CELL INCLUDING THE DYE - A dye for dye-sensitized solar cells includes an organometallic complex represented by M(L) | 01-12-2012 |
Soon-Wook Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20120018679 | DISPLAY DEVICE, METHOD OF MANUFACTURING THE SAME, AND COMPOSITION FOR USE IN MANUFACTURING THE SAME - A display device includes an insulating substrate, barriers surrounding predetermined regions on the insulating substrate, wherein ink composition is supplied in the predetermined regions, the ink composition including a first solvent which remains in a solid state in a temperature range between 10° C. and 30° C., a second solvent which remains in a liquid state in a temperature range between 10° C. and 30° C., and an organic material, and an organic layer formed in the predetermined regions by volatilizing the first solvent and the second solvent. Thus, the present invention provides a display device with an organic layer of regular quality. | 01-26-2012 |
Sung-Youp Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20120015237 | SECONDARY BATTERY - An Example relates to a secondary battery including an electrode assembly and an electrolyte contained in a can. The electrode assembly includes an anode plate, a cathode plate and a separator. The electrolyte contains an organic solvent and a lithium salt at a concentration of about 0.5 M to about 1 M in the organic solvent. | 01-19-2012 |
Tae-Ho Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090189229 | Semiconductor devices and methods of fabricating the same - Provided are semiconductor devices and methods of fabricating the same, and more specifically, semiconductor devices having a W—Ni alloy thin layer that has a low resistance, and methods of fabricating the same. The semiconductor devices include the W—Ni alloy thin layer. The weight of Ni in the W—Ni alloy thin layer may be in a range from approximately 0.01 to approximately 5.0 wt % of the total weight of the W—Ni alloy thin layer. | 07-30-2009 |
| 20100210105 | METHOD OF FABRICATING SEMICONDUCTOR DEVICE HAVING BURIED WIRING - A method of fabricating a semiconductor device can include forming a trench in a semiconductor substrate, forming a first conductive layer on a bottom surface and side surfaces of the trench, and selectively forming a second conductive layer on the first conductive layer to be buried in the trench. The second conductive layer may be formed selectively on the first conductive layer by using an electroless plating method or using a metal organic chemical vapor deposition (MOCVD) or an atomic layer deposition (ALD) method. | 08-19-2010 |
| 20120034749 | METHOD FOR MANUFACTURING A STRAINED SEMICONDUCTOR DEVICE - A method of manufacturing a semiconductor device can be provided by forming a gate structure on a substrate and forming a diffusion barrier layer on the gate structure and the substrate, A stress layer can be formed on the diffusion barrier layer comprising a metal nitride or a metal oxide having a concentration of nitrogen or oxygen associated therewith. The stress layer can be heated to transform the stress layer into a tensile stress layer to reduce the concentration of the nitrogen or the oxygen in the stress layer. The tensile stress layer and the diffusion barrier layer can be removed. | 02-09-2012 |
Tae-Hwan Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090059077 | SIGNAL PROCESSING APPARATUS AND CONTROL METHOD THEREOF - There are provided a signal processing apparatus and a control method thereof. The signal processing apparatus includes: a noise detecting unit which detects a signal-to-noise ratio of an input video signal; a coring unit which performs coring to remove a component of the video signal having a level within a predetermined reference range; and a control unit which adjusts the reference range of the coring unit corresponding to the detected signal-to-noise ratio and controls the coring unit to core the video signal based on the adjusted reference range. | 03-05-2009 |
| 20100229125 | DISPLAY APPARATUS FOR PROVIDING A USER MENU, AND METHOD FOR PROVIDING USER INTERFACE (UI) APPLICABLE THERETO - A display apparatus and a method for providing a user interface (UI) applicable thereto, are provided. The display apparatus controls so that, if a direction of a user gesture recognized at a gesture recognizing unit is within a first range from a first direction, an item arranged at a predetermined location is selected from among items listed in the user menu, in which the first direction is vertical to a direction of the user menu layout. As a result, the user can operate the user menu conveniently with his bodily gestures such as hand gestures. | 09-09-2010 |
Yongwoong Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20120085511 | COOLING SYSTEM FOR HYBRID VEHICLE - A cooling system for a hybrid vehicle in which power from an engine and a motor can be transmitted to driving wheels through a clutch and a transmission mechanism may include a heater core fluid-connected to the engine to heat the interior of the hybrid vehicle, using cooling water from the engine, and a heat exchanger which may be arranged in parallel with the heater core and fluid-connected to the engine to receive the cooling water from the engine together with the heater core, and through which ATF (Automatic Transmission Fluid) that has cooled the motor and the transmission mechanism exchanges heat with the cooling water from the engine. | 04-12-2012 |
Yong Woong Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100126692 | INTEGRATED HYBRID HEAT EXCHANGER WITH MULTI-SECTIONAL STRUCTURE - An integrated hybrid heat exchanger with a multi-sectional structure, may include a first radiator and a second radiator, and/or at least a coolant bypass member disposed between the first and second radiators, the coolant bypass member connecting one end portion of the first radiator and the other end portion of the second radiator so as to fluid-communicate between the first radiator and the second radiator. | 05-27-2010 |
Young-Kwan Cha, Yongin-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090068782 | Nano-elastic memory device and method of manufacturing the same - A nano-elastic memory device and a method of manufacturing the same. The nano-elastic memory device may include a substrate, a plurality of lower electrodes arranged in parallel on the substrate, a support unit formed of an insulating material to a desired or predetermined thickness on the substrate having cavities that expose the lower electrodes, a nano-elastic body extending perpendicular from a surface of the lower electrodes in the cavities, and a plurality of upper electrodes formed on the support unit and perpendicularly crossing the lower electrodes over the nano-elastic bodies. | 03-12-2009 |
| 20100059750 | BOTTOM GATE THIN FILM TRANSISTOR AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a bottom gate thin film transistor (“TFT”) in which a polycrystalline channel region having a large grain size is formed relatively simply and easily. The method of manufacturing a bottom gate thin film transistor includes forming a bottom gate electrode on a substrate, forming a gate insulating layer on the substrate to cover the bottom gate electrode, forming an amorphous semiconductor layer, an N-type semiconductor layer and an electrode layer on the gate insulating layer sequentially, etching an electrode region and an N-type semiconductor layer region formed on the bottom gate electrode sequentially to expose an amorphous semiconductor layer region, melting the amorphous semiconductor layer region using a laser annealing method, and crystallizing the melted amorphous semiconductor layer region to form a laterally grown polycrystalline channel region. | 03-11-2010 |