Kwang-Cheol
Kwang Cheol Cho, Yongin KR
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20110254763 | Optical pointing module and electronic apparatus - Disclosed are an optical pointing module and an electronic apparatus that are reduced in size in order to be used in a personal portable terminal. An optical pointing module according to an aspect of the invention may include: a laser light source mounted on a printed circuit board; an outer housing through which laser light, emitted from the laser light source, is transmitted; a light receiving unit located on the printed circuit board, receiving the laser light being reflected from the outer housing by an external stimulus, and transmitting an electrical signal to an integrated circuit; and an inner housing received in the outer housing and having a passage recess, through which the laser light passes, and a contact surface coming into contact with an inner surface of the outer housing, the contact surface having a height different from that of a surface of the inner housing having the passage recess therein. | 10-20-2011 |
20110280037 | Optical pointing module having lighting function and electronic apparatus - There are provided an optical pointing module having a lighting function and an electric device that can be used at night or dark place. An optical pointing module having a lighting function according to an aspect of the invention may include: a laser light source mounted on a printed circuit board; an outer housing through which laser light, emitted from the laser light source, passes, the outer housing having an outside part formed of a transparent material; and a lighting unit mounted inside the outer housing and supplying light to the outside part. | 11-17-2011 |
Kwang Cheol Lee, Seoul KR
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20150380611 | Light Emitting Apparatus and Surface Light Source Apparatus Having the Same - Provided are a light emitting apparatus and a surface light source apparatus having the same. The light emitting apparatus comprises a package body, a first color light emitting part in a first cavity of the package body, and a second color light emitting part in a second cavity of the package body. The package body comprises a plurality of cavities. | 12-31-2015 |
Kwang Cheol Park, Geumjeong-Gu KR
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20090038084 | Method for Controlling Operation of the Washing Machine - A washing machine that is capable of providing a stable washing mode even when a washing-related device is abnormal during a washing operation is disclosed. When a steam generation unit, which generates high-temperature steam into a drum, is abnormal, the operation of the steam generation unit is interrupted, and an operation for driving a washing heater mounted in a tub is performed, or an operation for driving a drying unit, which supplies high-temperature dry hot air into the drum, is performed. A steam substituting algorithm is provided when the steam generation unit is abnormal during the operation using the high-temperature steam. Consequently, the interruption of the washing operation due to the abnormal steam injection function is prevented, and therefore, the reliability of the product is improved while the inconvenience of use is minimized. | 02-12-2009 |
Kwang Cheol Sinh, Hwaseong KR
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20110137507 | SYSTEM HAVING CRASH UNLOCK ALGORITHM - The present invention features a system having a door unlock algorithm, which includes an ACU (Airbag Control Unit) which measures an acceleration of vehicle; an algorithm which determines by comparing a value measured in the ACU with a preset value; and a BCM (Body Control Module) to which a signal which is determined through the algorithm is sent | 06-09-2011 |
Kwang-Cheol Choi, Hwancheon-Si KR
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20080310762 | SYSTEM AND METHOD FOR GENERATING AND REGENERATING 3D IMAGE FILES BASED ON 2D IMAGE MEDIA STANDARDS - Disclosed are a system and a method for generating and regenerating three-dimensional (3D) image files based on two-dimensional (2D) image media standards. The system includes a 3D image file generating device for generating a 3D image file including a data area, which includes a first image data and a second image data, the second image data being synchronized with the first image data so as to be used for generating a 3D image and undergoing a data conversion process based on the first image data, a header area including information of the first image data, and a metadata area including information of the second image data, and a 3D image file regenerating device, which parses information of the first and second image data when a 3D image file is inputted so as to extract the first and second image data, restores the second image data through a data conversion process, and synthesizes the first image data and the restored second image data so as to regenerate the 3D image file. | 12-18-2008 |
Kwang-Cheol Choi, Seoul KR
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20100177046 | Key input method and apparatus for portable apparatus - A key input apparatus for a portable apparatus includes a display unit that displays a key selected by a user input. The apparatus includes a light sensor comprising a plurality of light emitting elements and a plurality of light receiving elements. The respective light emitting elements generate first light signals upward at a predetermined angle from a direction in which the light emitting elements face the light receiving elements. The apparatus also includes input detection unit that detects the light receiving elements that receive the first light signals, and detects a user's space input position using the light receiving elements that receive the first light signals if the light receiving elements that receive the first light signals are detected. | 07-15-2010 |
Kwang-Cheol Choi, Suwon-Si KR
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20090049121 | MOBILE TERMINAL AND METHOD FOR CONTROLLING FUNCTION USING CONTENTS - A mobile terminal and a method for controlling a function of the mobile terminal using contents are disclosed. The contents are authored to include function control information related to the function of the mobile terminal desired to be controlled. The mobile terminal downloads the contents and registers the function desired to be controlled included in the contents to a service table. The application of the mobile terminal does not execute the called function as it is if the predetermined function is called, but identifies if the called function is registered in the service table. If the called function is registered, the application cancels the existing execution routine for the called function and requests the contents player of the service related to the called function. Then, the contents player controls the called function according to a method programmed in the contents. | 02-19-2009 |
Kwang-Cheol Choi, Gyeonggi-Do KR
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20120075431 | STEREO IMAGE HANDLING DEVICE AND METHOD - An apparatus and a method for processing a stereo image are provided. In the method, a first image and a second image are obtained via a first camera module and a second camera module installed spaced by a predetermined distance. When the stereo image is captured, the first image and the second image are alternatively sampled with a predetermined time interval. The sampled at least one first image and the sampled at least one second image are encoded. Therefore, the stereo image can be compressed with low complexity compared to the case of compressing a stereo image using a 2D image compression technology. | 03-29-2012 |
20130286159 | SYSTEM AND METHOD FOR GENERATING AND REGENERATING 3D IMAGE FILES BASED ON 2D IMAGE MEDIA STANDARDS - Methods and apparatus are provided for generating 3D image files based on 2D image media standards. First and second image data are photographed, pre-processed, and stored. The first and second image data are encoded. A 3D image file is generated. The 3D image file includes a first area having the first and second image data synchronized with the first image data so as to be used for generating a 3D image, a second area including at least information on a number of frames and a size of each frame for the first image data, and a third area, separate from the second area, having information on a number of frames and a size of each frame for the second image data. Information stored in third area is for regenerating the 3D image and not for regenerating a 2D image. | 10-31-2013 |
Kwang-Cheol Heo, Ulsan KR
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20120325937 | TWO-STAGE FUEL INJECTION VALVE FOR A DIESEL ENGINE, COMPRISING A SOLENOID VALVE AND A SHUTTLE VALVE - Disclosed herein is a two-stage fuel injection valve for a diesel engine. The valve includes a fuel valve block ( | 12-27-2012 |
20130037004 | TWO SOLENOID VALVE RELAY TWO-STAGE FUEL INJECTION VALVE FOR DIESEL ENGINES - The present invention provides a two solenoid valve relay with a two-phase fuel injection valve for a diesel engine, which is installed on a valve itself to enable injection at pressure greater than opening pressure, at which the fuel enters into a fuel valve, thereby improving fuel injection performance, and which is configured to enable adjustment of an injection timing at the opening pressure within the valve, wherein injection timings through a solenoid valve is provided for low load and high load, respectively, such that a distinct difference exists between the injection timings to open the nozzle hole of the nozzle in a differential manner at pressure higher than the pressure, at which the fuel enters to the fuel valve and internal spring opening pressure, thereby injecting fuel at high pressure even at low load to facilitate vaporization, and wherein, in case of a high speed operation or high load, low pressure/high pressure needle valves are opened at the same time to quickly inject fuel of a high volume through a plurality of nozzle holes, thereby improving combustion performance of an engine, and wherein a space between the needle valve and the nozzle hole which are closed after the injection is minimized because the nozzle hole is opened differentially and sequentially according to pressure, thereby avoiding waste of fuel and reducing harmful gas (smoke, Nox). | 02-14-2013 |
20130074811 | FUEL INJECTION PUMP HAVING A SEPARABLE PLUNGER - A fuel injection pump having a separable plunger includes a separable plunger of which outer circumference is slide coupled to an inside of the a such that a lower portion thereof is supported by an upper portion of a main plunger to enable upward and downward slide movement in association with the main plunger, wherein an injection timing control spiral step of which upper surface is formed in a spiral shape, is protrudingly formed on the outer circumference thereof and a fuel passage is formed on one side of the outer circumference thereof including the injection timing control spiral step and an elastic member having a lower portion elastically supported by the separable plunger and an upper portion inserted within the barrel to be supported by an upper surface of the barrel. | 03-28-2013 |
20130139790 | TWO-PHASE FUEL INJECTION VALVE FOR DIESEL ENGINE AND GAS ENGINE INCLUDING NOZZLE HAVING PUMPING FUNCTION - The present invention relates to a dual fuel injection valve having a pumping nozzle for a diesel engine and a gas engine, and an objective of the present invention is to provide a fuel injection valve in which, by using two kinds of fuel entering into a fuel valve, a warming up and injection of pilot fuel may be performed in an initial injection and injection of main fuel may be performed subsequently such that subsequent dual fuel is used for combustion, thereby increasing fuel injection performance. | 06-06-2013 |
20140165958 | PRECOMBUSTION CHAMBER FOR GAS ENGINE - Disclosed herein is a precombustion chamber structure for a gas engine. The precombustion chamber structure is configured to facilitate disassembly of a precombustion chamber tip, thus making maintenance, repair or inspection of the precombustion chamber easy. For this, the precombustion chamber structure includes: a body ( | 06-19-2014 |
20150014565 | CHECK VALVE DRIVING DEVICE FOR INJECTING GAS - A check valve driving device for injecting gas, which enables an accurate operation of a check valve for injecting gas and long-term usage by enhancing durability, comprises: an upper portion fixing block which moves vertically by coupling onto a yoke repeating vertical movements; a lower portion fixing block which is coupled to a prechamber at a lower portion of the yoke; a roller which is rotatably coupled onto the upper portion fixing block, and of which a center portion diameter is bigger than diameters of both end portions; a guide, which is rotatably coupled onto the lower portion fixing block, for rotating when a curved surface on one side thereof comes into contact with the roller moving vertically; an operation piece, which is rotatably coupled onto the lower portion fixing block, wherein a front end of the operation piece moves vertically in accordance with the rotation of the guide; and a pressing rod which is coupled to the front end of the operation piece, and which is lowered in accordance with the lowering of the front end of the operation piece. | 01-15-2015 |
Kwang-Cheol Lee, Gwangju Gwangyeok-Si KR
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20130134462 | Light emitting diode having multi-cell structure and method of manufacturing the same - Disclosed is a light emitting diode having a multi-cell structure including a number of unit cells. The light emitting diode is capable of reducing light loss of the light emitting diode surface and improving light efficiency by bonding pads to be formed for contact between mesa etching regions for forming an electrode of the existing n-type semiconductor layers and p-type semiconductor layers. The light emitting diode is also capable of controlling chip size and manufacturing chips of different sizes from each other even when going through the same chip manufacturing process as the related art. | 05-30-2013 |
Kwang-Cheol Oh, Yonging-Si KR
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20090141907 | Method and apparatus for canceling noise from sound input through microphone - Provided is a method and apparatus for canceling noise from a sound signal input through a microphone. The method includes filtering a high-frequency signal having a frequency that is higher than a reference frequency and a low-frequency signal having a frequency that is lower than the reference frequency from input signals obtained through a microphone array, obtaining a high-frequency target signal by canceling a noise signal from the filtered high-frequency signal using a beamforming method, obtaining a low-frequency target signal by canceling a noise signal having a phase difference that is different from a phase difference of a target signal from the filtered low-frequency signal, and obtaining a sound source signal from which noise is cancelled, by synthesizing the obtained high-frequency target signal with the obtained low-frequency target signal. Thus, it is possible to accurately obtain a target sound source signal by minimizing signal distortion occurring in a low-frequency band in a digital sound obtaining apparatus having a small-size microphone array and accurately canceling or attenuating unnecessary noise. | 06-04-2009 |