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Hee-Won
Hee-Won Ahn, Goyang-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20110141077 | DRIVING METHOD FOR LOCAL DIMMING OF LIQUID CRYSTAL DISPLAY DEVICE AND APPARATUS USING THE SAME - A driving method for local dimming of a Liquid Crystal Display (LCD) device and an apparatus using the same are disclosed. The driving method includes measuring light intensities at a plurality of sampling points by driving a light source of a backlight unit and storing the light intensity measurements as light intensity data of the sampling points in a memory, determining a local dimming value of each block by analyzing input image data on a block basis, detecting a pixel position of current input data, selecting a plurality of sampling points adjacent to the current pixel and the light intensity data of the sampling points from the memory, detecting light intensity data of the current pixel by linearly interpolating the light intensity data of the sampling points individually, calculating a gain value by a light intensity analysis based on the light intensity data of the current pixel and the local dimming value of each block, compensating the current input data using the gain value, and controlling luminance of the backlight unit on a block basis using the local dimming value of each block. | 06-16-2011 |
Hee-Won Ahn, Gyeonggi KR
| Patent application number | Description | Published |
|---|---|---|
| 20090109170 | Method of driving liquid crystal display device - A method of driving a liquid crystal display device includes inputting source image data, each of which has one of m gray level values, wherein m is a natural number, defining T error data from the source image data, wherein the error data have top k gray level values, and T and k are a natural number, generating conversion image data having larger gray level values than the source image data using one having a largest gray level value from the source image data excluding the error data, inputting the conversion image data to a liquid crystal panel, controlling a brightness of a backlight unit in accordance with the conversion image data, forming a bitmap corresponding to the conversion image data, wherein the bitmap shows positional distribution of pixels with the error data, counting error areas by scanning the bitmap, wherein each of the error areas includes the predetermined number of the pixels having the error data, and controlling the T according to the number of the error. | 04-30-2009 |
Hee-Won Jung, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20090158804 | SYSTEM FOR MANUFACTURING LINEAR GEAR AND THE METHOD THEREOF - The present invention relates to a system for and a method of manufacturing a linear gear (rack gear), in which a forming roll and a guide roll are used to form gear teeth in a sequential manner so as not to require a high load, thereby enabling to easily manufacture the rack gear. A system for manufacturing a rack gear according to the invention includes a forming roll having a convexo-concave portion formed on a part of the surface contacting with a linear bar, a guide roll adapted to roll while facing the forming roll, and at least one support member for supporting the linear bar so as to allow the linear bar to linearly move. A method of manufacturing a rack gear according to the invention includes a first step of passing a linear bar through between a pair of rollers provided in front of a forming roll and a guide roll, a second step of charging the linear bar into a charging hole between the forming roll and the guide roll, a third step of rolling the forming roll and the guide roll to partly form teeth on the outer circumferential surface of the linear bar, and a fourth step of rolling the forming roll and the guide roll forward or backward to discharge the linear bar. | 06-25-2009 |
Hee-Won Kang, Songnam-Shi KR
| Patent application number | Description | Published |
|---|---|---|
| 20110292880 | APPARATUS AND METHOD FOR GATING TRANSMISSION OF A DATA RATE CONTROL CHANNEL IN AN HDR MOBILE COMMUNICATION SYSTEM - A method for communicating with a network by a terminal in a wireless communication system, wherein the terminal receives, from the network, signaling information representing a transmission period and a time offset for uplink transmission of a feedback information, and determines a time to transmit the feedback information based on the transmission period and the time offset. The terminal transmits the feedback information to the network based on the determined time. | 12-01-2011 |
Hee-Won Kang, Seongam-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090215390 | METHOD AND APPARATUS FOR ESTIMATING/REMOVING ECHO SIGNAL USING CHANNEL COEFFICIENT PREDICTING TECHNIQUE IN MULTI-CARRIER SYSTEM - A method and an apparatus are provided for estimating and removing interference of a signal at a wireless repeater operating in a multi-carrier system. In the method, a current echo channel linear prediction coefficient, which represents a coefficient between a current train signal section and a previous train signal section, is estimated using a current echo channel coefficient estimated in the current train signal section and a previous echo channel coefficient generated in the previous train signal section. A next echo channel coefficient is estimated using the current echo channel coefficient, the previous echo channel coefficient, and the current echo channel linear prediction coefficient. An echo channel coefficient outside a train signal section is estimated using the current echo channel coefficient and the next echo channel coefficient. | 08-27-2009 |
Hee-Won Ko, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090185362 | LIGHT SOURCE UNIT, MANUFACTURING METHOD THEREOF, AND DISPLAY DEVICE HAVING THE SAME - A light source unit includes; a first base layer, a plurality of conductive pads disposed on the first base layer, a second base layer disposed on the first base layer and including a plurality of openings therein exposing the plurality of conductive pads, a wiring portion disposed on the second base layer, and a plurality of light source elements disposed on the plurality of conductive pads exposed by the plurality of openings in the second base layer. | 07-23-2009 |
Hee-Won Lee, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090296482 | Non-volatile memory device and method of operation therefor - In one embodiment, the non-volatile memory device includes a plurality of normal memory cells, and at least one flag memory cell associated with one of the plurality of normal memory cells. A normal page buffer is configured to store data read from one of the plurality of normal memory cells. The normal page buffer includes a main latch storing the read data. A control circuit is configured to selectively change data stored in the main latch during a read operation based on a state of the flag memory cell. | 12-03-2009 |
| 20100002507 | FLASH MEMORY DEVICE REDUCING NOISE OF COMMON SOURCE LINE, PROGRAM VERIFY METHOD THEREOF, AND MEMORY SYSTEM INCLUDING THE SAME - A flash memory device controls a common source line voltage and performs a program verify method. A plurality of memory cells is connected between a bit line and the common source line. A data input/output circuit is connected to the bit line and is configured to store data to be programmed in a selected memory cell of the plurality of memory cells. The data input/output circuit maintains data to be programmed within the data input/output circuit during a program verify operation, and decreases noise in the common source line by selectively precharging the bit line based on the data to be programmed. | 01-07-2010 |
| 20100034019 | SYSTEMS AND METHODS FOR PERFORMING A PROGRAM-VERIFY PROCESS ON A NONVOLATILE MEMORY BY SELECTIVELY PRE-CHARGING BIT LINES ASSOCIATED WITH MEMORY CELLS DURING THE VERIFY OPERATIONS - A nonvolatile memory system is operated by performing a program loop on each of a plurality of memory cells, each program loop comprising at least one program-verify operation and selectively pre-charging bit lines associated with each of the plurality of memory cells during the at least one program-verify operation. | 02-11-2010 |
| 20100220535 | NON-VOLATILE MEMORY DEVICE - A non-volatile memory device includes a feedback circuit and a precharge switching transistor. The feedback circuit generates a feedback signal based on a voltage level of a bitline during a precharge operation. The precharge switching transistor, in response to the feedback signal, controls a precharge current for precharging the bitline. The speed of the precharge operation may be increased and/or mismatch of the bias signals in precharging a plurality of bitlines may be reduced. | 09-02-2010 |
Hee-Won Park, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090325614 | METHOD OF PROVIDING MULTIMEDIA MESSAGING SERVICE USING UNIQUE MESSAGE INDENTIFIER BACKGROUND OF THE INVENTION - The present invention relates to a method of providing a multimedia messaging service, which guarantees the uniqueness of a transmitted multimedia message. In the multimedia messaging method using a mobile communication network of the present invention, a multimedia message transmitted from an originating mobile station is stored. A receiving mobile station is informed of the arrival of the multimedia message. The stored multimedia message is transmitted to the receiving mobile station if a download request is received from the receiving mobile station. In this case, the stored multimedia message includes a unique message identifier distinguished from file information of other multimedia messages stored to be retransmissible. | 12-31-2009 |
Hee-Won Seo, Dajeon KR
| Patent application number | Description | Published |
|---|---|---|
| 20110024333 | Method for separating nanotubes using microwave radiation - A method for separating carbon nanotubes is disclosed where nanotubes with specific properties are separated from a mixture of nanotube products, which contains various types of nanotubes and impurities. | 02-03-2011 |
Hee-Won Seo, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100085414 | APPARATUS AND METHOD FOR PROVIDING EMOTION EXPRESSION SERVICE IN MOBILE COMMUNICATION TERMINAL - A method and an apparatus for providing an emotion expression service in a mobile communication terminal are provided. The method includes identifying, by the mobile communication terminal performing a video call with a calling terminal, information of emotion expression in images received from the calling terminal, and generating, by the mobile communication terminal, an event corresponding to the identified information of emotion expression. | 04-08-2010 |