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Cha, Incheon
Dok-Hwan Cha, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090027816 | ELECTRONIC DEVICE HAVING ELECTROSTATIC DISCHARGE FUNCTION - An electronic device including a housing, a main circuit substrate disposed in one side of the housing; a connector unit which is disposed in an other side of the housing and is electrically connected to the main circuit substrate, and a discharging sheet disposed in the one side of the housing and is conductively connected to the connector unit to discharge static electricity generated in the connector unit is provided. | 01-29-2009 |
In Cheol Cha, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090317201 | Drill of hexagonal cylinder - The present invention relates to a drill of hexagonal cylinder. In a drill of diameter range 5 mm to 13 mm as using to make a hole on a metal, wood, or etc., a drill edge part in which is located at the bottom of the drill as formed a shape of screw to be able to make a hole the metal or wood, and a bit part in which is located at the top of the drill edge part as formed a shape of the teeth of a comb in the surface of a hexagonal cylinder to be able to separate and combine the drill in a drill tight. | 12-24-2009 |
In Suk Cha, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20080232320 | Dynamic Resource Allocation Method Based on Frequency Reuse Partitioning For Ofdma/Fdd System, and Frame Transmission Method Therefor - Provided are a dynamic resource allocation method based on frequency reuse partitioning for an Orthogonal Frequency Division Multiple Access (OFDMA) system, and a frame transmission method therefor. The dynamic resource allocation method includes: a) dividing a coverage into cells based on frequency reuse partitioning; b) selecting a candidate user to receive a channel allocated thereto based on the ratio; c) acquiring distance information for the candidate user; and d) checking whether the candidate user is in an inner or outer cell area based on the distance information. If the candidate user is in the inner cell area, a subchannel group among subchannel groups having a Frequency Reuse Factor (FRF) lower than a threshold value is selected and subcarriers of the selected subchannel group is allocated. If the candidate user is in the outer cell area, a subchannel group among subchannel groups having a FRF higher than the threshold value is selected. | 09-25-2008 |
| 20090316635 | Method and frame structure for supporting dynamic channel allocation and dynamic power allocation in frequency reuse partitioning based OFDMA system - Provided are a dynamic channel/power allocation method for an FRP-based OFDMA system and a frame/slot structure. capable of supporting the dynamic channel/power allocation method. In the FRP-based OFDMA system, each of cells has an inner cell, an outer cell and a plurality of sectors and performs data communication with a plurality of MSs therein through one or more orthogonal subchannel groups. In the dynamic channel/power allocation method, a BS receives a feedback channel condition from an MS provided with a service of the BS and allocates a subchannel group with a high SINR to each MS in consideration of the fairness and the distance information of each MS. Power is allocated to each MS on the basis of the conditions of a channel allocated to each MS, thereby obtaining a multi-user diversity gain. | 12-24-2009 |
Ja Hyun Cha, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100113538 | N-HYDROXY-4- BENZAMIDINE 2 ETHANSULFONIC ACID SALT, PROCESS FOR THE PREPARATION THEREOF AND PHARMACEUTICAL COMPOSITION COMPRISING THE SAME - N-hydroxy-4-{5-[4-(5-isopropyl-2-methyl-1,3-thiazol-4-yl)phenoxy]pentoxy}benzamidine 2 ethansulfonic acid salt, a process for the preparation thereof, a pharmaceutical composition for preventing and treating osteoporosis, bone fractures or allergic inflammatory diseases, comprising the same, and an oral formulation for preventing and treating osteoporosis, bone fractures or allergic inflammatory diseases, comprising the same are described. | 05-06-2010 |
Joon Hyuk Cha, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100142847 | Apparatus and method for enhancing image base on luminance information of pixel - An image enhancement apparatus and method based on luminance information of a pixel. The image enhancement apparatus may determine luminance data of each of a plurality of pixels, and may adaptively determine a conversion ratio according to the luminance data to apply the conversion ratio to an input image, thereby performing image-enhancing. The image enhancement apparatus may adaptively converse the input image according to luminance data, thereby precisely and effectively performing image-enhancing. | 06-10-2010 |
| 20110090365 | Method and apparatus for controlling multiple exposures - Provided is a multi-exposure controlling method and apparatus. An exposure control unit may set an initial exposure time based on a comparison result between a predetermined brightness confidence interval and an average high brightness that is calculated based on at least one current histogram. A comparison unit may compare the brightness confidence interval and an average low brightness that is calculated based on a subsequent histogram obtained by photographing a subject using the set initial exposure time. The exposure control unit may change the initial exposure time based on a comparison result of the comparison unit. | 04-21-2011 |
| 20110096085 | Apparatus and method determining image dynamic range extended mode using fuzzy rule - Provided is an apparatus and method of determining a dynamic range extended mode for a digital camera using a fuzzy rule. The method may determine a feature value with respect to a preview image in accordance with a predetermined measurement criterion, and may determine a dynamic range extended mode using a fuzzy rule where the determined feature value is matched in the fuzzy rule, thereby intelligently controlling a photographing mode of the digital camera. In particular, the method may determine the feature value with respect to the preview image in accordance with various measurement criterions, thereby obtaining an optimum photographing mode for subsequent images. | 04-28-2011 |
| 20110164833 | Image processing apparatus and method - An image processing apparatus is provided. The image processing apparatus for image signal processor (ISP) realization may include a Static Random Access Memory (SRAM) for each function module. A unified SRAM to store at least one line data of an input image for each of a plurality of functions modules within the image processing apparatus is further provided. | 07-07-2011 |
Seung Hwan Cha, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20100237353 | Thin Film Transistor, Method of Fabricating the Same, and Method of Fabricating Liquid Crystal Display Device Having the Same - A thin film transistor includes a gate electrode, a gate insulation layer on the gate electrode, source and drain electrodes formed on the gate insulation layer, a polysilicon channel layer overlapping the ohmic contact layers and on the gate insulation layer between the source and drain electrodes, ohmic contact regions over the source and drain electrodes for contacting the polysilicon channel to the source and drain electrodes, and doping layers over the source and drain electrodes. | 09-23-2010 |
Soon Chang Cha, Incheon KR
Won Wook Cha, Incheon KR
| Patent application number | Description | Published |
|---|---|---|
| 20090235944 | NAIL FILE AND METHOD OF MANUFACTURING THE SAME - A nail file and a method of manufacturing the same includes a reinforcing core member made of paper, and polishing elements provided at both surfaces of the reinforcing core member with the reinforcing core member interposed therebetween and used to polish a nail surface. In the nail file and the method of manufacturing the same, the reinforcing core member is made of rigid and elastic paper, providing the nail file with higher elasticity and flexibility than conventional synthetic resin products, whereby the nail file can easily accomplish nail finishing and polishing, and can reduce environmental contamination by minimizing generation of toxins upon landfill or incineration after disposal. | 09-24-2009 |