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Chang-Woo Lee
Chang-Woo Lee, Gyeongsangbuk-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20100229117 | APPARATUS AND METHOD FOR INFORMATION DISPLAY OF PORTABLE DEVICE - Provided is a method of displaying information of a portable device, which includes receiving a signal of booting or termination of the portable device; and displaying a valid information which is previously set while the booting or termination process is performing. | 09-09-2010 |
| 20110006036 | Method for Fabricating Membrane having Hydrophilicity and Hydrophobicity - A method for fabricating a membrane is disclosed, to provide both hydrophilicity and hydrophobicity to predetermined positions of a surface of a single membrane. The method for fabricating a membrane includes: preparing a template with nano-scale holes formed on its outer surface; coating a polymer material on a predetermined pattern region of the outer surface of the template; attaching a hydrophilic film on the outer surface of the template; and removing the template from the hydrophilic film. | 01-13-2011 |
Chang-Woo Lee, Gyungsangbuk-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20090260702 | METHOD FOR FABRICATING SOLID BODY HAVING SUPERHYDROPHOBIC SURFACE STRUCTURE AND SUPERHYDROPHOBIC TUBE USING THE SAME METHOD - The present invention relates to a method for manufacturing a solid body having a superhydrophobic surface structure formed by using a surface treatment of a metal body, a replication process, and a polymer sticking phenomenon to increase efficiency of fluid transfer and prevent foreign materials from being accumulated in the tube, and a superhydrophobic fluid transfer tube using the method. The superhydrophobic fluid transfer tube includes a fluid guider and a solid body provided on a fluid contact surface of the fluid guider and has micrometer-scaled unevenness and nanometer-scaled protrusions. In the method, a plurality of nanometer-scaled holes are formed on a surface of a metal body through an anodizing process, a replica is formed by immersing the metal body provided with the nanometer-scaled holes in a non-wetting polymer material and solidifying the non-wetting polymer material, the solid body having the superhydrophobic surface is formed by removing the metal body and an anode oxide from the replica, and the solid body is provided to a fluid contact surface of a fluid guider for guiding a fluid. | 10-22-2009 |
Chang-Woo Lee, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20080252757 | APPARATUS AND METHOD FOR GENERATING WIDE COLOR GAMUT SIGNAL IN IMAGE CAPTURING DEVICE - Provided are a method and apparatus for generating a wide color gamut signal in an image capturing device, which can simplify a calculation process and minimize color distortion therein. The apparatus includes a gamma-correction unit gamma-correcting a picked-up image signal by using gamma curve information predetermined according to an output format; an interpolation unit interpolating the gamma-corrected image signal as a linear image signal which is to be expressed on a display; a color gamut conversion unit converting the interpolated image signal into a standard RGB signal by using a color conversion matrix; a color expansion unit expanding the standard RGB signal to a wide color gamut signal by using a gamut conversion matrix; and a signal correction unit correcting the wide color gamut signal by a predetermined correction gain value. | 10-16-2008 |
| 20080278603 | METHOD AND APPARATUS FOR REDUCING FLICKER OF IMAGE SENSOR - Provided is a method and apparatus for reducing flickers of an image sensor capable of reducing line flickers due to a complementary metal-oxide-semiconductor (CMOS) sensor. The method includes: estimating a profile of a light source per line on the basis of information on image frames which are continuously input; filtering information of the estimated profile of the light source with a predetermined bandwidth; normalizing the filtered information of the estimated profile of the light source, and extracting a correction gain per line; and selecting the correction gain per line repeated in units of predetermined frames, and applying the correction gain to an input image signal. | 11-13-2008 |
| 20090051777 | APPARATUS AND METHOD FOR ESTIMATING MOTION DUE TO HAND TREMBLING AND IMAGE PICKUP DEVICE USING THE SAME - A motion estimation apparatus and method for estimating a global motion vector of an image due to hand trembling by using zoom information and focus information are provided. The motion estimation method includes: dividing a photographed image into a plurality of image blocks; determining a weight value for a motion vector of each of a plurality of image blocks based on focus information and zoom magnification information; predicting a motion vector for each image block; and estimating a global motion by applying the weight value determined for the motion vector for each image block to the predicted motion vector. | 02-26-2009 |
| 20090091631 | METHOD AND APPARATUS FOR STABLY CORRECTING HANDSHAKE IN CAMERA PANNING SITUATION - Provided are an apparatus and method for stably correcting handshake that occurs during a camera panning situation. In the method, movement information is accumulated by a predetermined unit for a predetermined period of time. A regression model is matched to the accumulated movement information so as to determine a situation as one of a panning mode and a handshake mode. Switching is performed between the handshake mode and the panning mode according to the size of a matching factor generated by the matched regression model. Handshake is corrected on the basis of a handshake correcting amount determined according to one of the handshake mode and the panning mode. | 04-09-2009 |
Chang-Woo Lee, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20090068150 | LACTIC ACID BACTERIA CULTURE OF MUNG BEAN AND THE PREPARATION METHOD OF THE SAME, AND THE COSMETIC COMPOSITION COMPRISING THE SAME - Disclosed is a lactic acid bacteria culture of mung bean obtained by culturing lactic acid bacteria in a culture medium containing mung bean extract. The culture contains the mung bean extract and GABA (ϝ | 03-12-2009 |
Chang-Woo Lee, Gyeonggi-Do KR
| Patent application number | Description | Published |
|---|---|---|
| 20080292493 | Quaternary Pb-free solder composition incorporating Sn-Ag-Cu-In - Provided is a quaternary Pb-free solder composition incorporating Sn—Ag—Cu—In, which can prevent a cost increase and sufficiently ensure proccessability and mechanical property as a solder material. To this end, indium (In) with appropriate amount is added into the Pb-free solder composition, and the addition amount of Ag is optimized, thus preventing a decrease in wettability caused by a decrease in the amount of Ag and improving resistance to a thermal cycling and a mechanical impact. The quaternary Pb-free solder composition includes silver (Ag) of about 0.3 wt. % or more, and less than about 2.5 wt. %, copper (Cu) of about 0.2 wt. % or more, and less than about 2.0 wt. %, indium (In) of about 0.2 wt. % or more, and less than about 1.0 wt. % or less, and a balance of tin (Sn). | 11-27-2008 |
Chang-Woo Lee, Anyang-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20080245774 | Laser-rotate arc hybrid welding system and thereof method - The present invention relates to a laser-rotating arc hybrid welding system and a welding method using the system. The laser-rotating arc hybrid welding system of the present invention includes an arc discharge unit ( | 10-09-2008 |