Choi, Bucheon-Si
Byongyoung Choi, Bucheon-Si KR
Patent application number | Description | Published |
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20160090875 | VARIABLE VALVE LIFT APPARATUS - A variable value lift apparatus may include a camshaft, a first moving cam including cams having different shapes, having a first cam guide protrusion, rotating with the camshaft, and being slidable in an axial direction of the camshaft, a second moving cam including cams having different shapes, having a second cam guide protrusion, rotating together with the camshaft, and being slidable in the axial direction of the camshaft, a first operating unit selectively jutting out to guide the first cam guide protrusion to move the first moving cam in a first direction, a second operating unit selectively jutting out to guide the second cam guide protrusion to move the second moving cam in a second direction, a controller to control operations of the first and second operating units, and valve opening and closing units brought into contact with any one of the plurality cams to be opened and closed. | 03-31-2016 |
Byong Young Choi, Bucheon-Si KR
Patent application number | Description | Published |
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20120060783 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus of an engine may include an inner tappet, an outer tappet centrally receiving the inner tappet, a latching unit inserted in the inner tappet and operated by a hydraulic pressure so as to selectively engage the inner and outer tappets by operation, and a protruding member that is coupled to an upper surface edge of the outer tappet so as to protrude outward from an exterior circumference of the outer tappet, and is vertically slidable along a sliding groove of a cylinder head. | 03-15-2012 |
20120280162 | HYDRAULIC PRESSURE VALVE APPARATUS - A hydraulic pressure valve apparatus includes a housing of which a first chamber and a second chamber are formed therein, wherein a diameter of the second chamber is bigger than that of the first chamber, a first piston disposed within the first chamber, an elastic portion disposed within the first chamber for elastically supporting the first piston and a second piston disposed within the second chamber and connected to a valve. | 11-08-2012 |
20120291889 | OIL CONTROL VALVE AND VARIABLE VALVE LIFT SYSTEM PROVIDED WITH THE SAME - An oil control valve includes a housing having a control port and a drain port, a first seat with a first penetration hole forming a first chamber, a second seat with a second penetration hole forming a second chamber communicated with the control port, the second seat with the housing forming a third chamber communicating with the drain port, a first check valve within the first chamber selectively closing the first penetration hole, a second check valve within the third chamber selectively closing the second penetration hole, and a third penetration hole, a control portion selectively opening the first check valve and simultaneously closing the second check valve or selectively closing the first check valve and simultaneously opening the second check valve and an orifice connecting the first chamber with the second chamber. | 11-22-2012 |
20120298059 | ELECTRIC CONTINUOUS VARIABLE VALVE TIMING APPARATUS - An electric continuously variable valve timing apparatus may include a cam sprocket, a camshaft rotatably connected with the cam sprocket, a motor portion, a lead screw portion which may be disposed within the motor portion, may be screwed-engaged with the motor portion, and moves along length direction of the camshaft according to operations of the motor portion, and a camshaft holder rotatably connecting the lead screw portion and the cam sprocket, wherein the camshaft holder moves along length direction of the camshaft according to the movement of the lead screw portion and varies relative phase angle between the cam sprocket and the camshaft for controlling valve timing. | 11-29-2012 |
20130146002 | ELECTRO-HYDRAULIC VARIABLE VALVE LIFT SYSTEM - An electro-hydro valve lift system may include a drive cam, a pump piston, a first and a second EHV apparatus, a first oil control valve, a first oil control hydraulic line fluid-communicating the main chamber with the first oil control valve, a second oil control hydraulic line fluid-communicating the first oil control valve with the first EHV apparatus, a third oil control hydraulic line fluid-communicating the main chamber with the second EHV apparatus, a fourth oil control hydraulic line selectively fluid-communicated with the second oil control hydraulic line according to the first oil control valve, an accumulator fluid-communicated with the fourth oil control hydraulic line, and a second oil control valve disposed on the fourth oil control hydraulic line, wherein the fourth oil control hydraulic line is fluid-communicated with the third oil control hydraulic line according to the second oil control valve. | 06-13-2013 |
20140041605 | ELECTRO-HYDRAULIC VARIABLE VALVE LIFT APPARATUS - An electro-hydraulic variable valve lift apparatus may include an hydraulic pump body installed in an engine, a piston provided to reciprocate within the hydraulic pump body and forming an hydraulic pump chamber together with the hydraulic pump body, an hydraulic pump cam disposed to be in contact with the piston and enabling the piston to reciprocate according to a rotation thereof, a retainer provided to be slidable along the piston between the piston and the engine and forming a retainer chamber with the engine, a retainer spring elastically supporting the retainer, an oil control valve allowing the hydraulic pump chamber and the retainer chamber to selectively communicate with each other, a valve opening and closing unit communicating with the hydraulic pump chamber and opened or closed according to oil pressure supplied from the hydraulic pump chamber. | 02-13-2014 |
20140090616 | CYLINDER AIR VOLUME DIFFERENCE ADJUSTER AND CONTINUOUS VARIABLE VALVE LIFTER INCLUDING THE SAME - A continuous variable valve lifter having a cylinder air volume difference adjuster includes a camshaft having an input cam, an eccentric control shaft disposed parallel to the camshaft, and a control link rotatable around the eccentric control shaft. An output cam is provided to open and close a valve actuator for opening/closing, and a connection link is rotatably connected to the control link, and driving the output cam by the rotation of the input cam. A cam cap is disposed where the camshaft and the eccentric control shaft are mounted. | 04-03-2014 |
20140109865 | PRE-CHAMBER STRUCTURE FOR PISTON ENGINE - A pre-chamber structure for a piston engine may include: a pre-chamber combustion chamber in which a mixture of fuel and air is combusted and a pre-chamber compression chamber including a sub-chamber communicating with the pre-chamber combustion chamber and having an inclined wall surface, and a main chamber extending from the sub-chamber, thereby preventing the fuel from being adsorbed and remaining in the wall surface of the pre-chamber compression chamber in a droplet state. | 04-24-2014 |
20140158067 | VARIABLE CYCLE ENGINE - A variable cycle engine may include a first cylinder that performs an intake, a compression, an explosion, or an exhaust stroke, a second cylinder that performs an intake, a compression, an explosion, or an exhaust stroke, a connection rail that is formed near the first cylinder and the second cylinder, a first variable port that is diverged from one side of the connection rail and is connected to the first cylinder, a second variable port that is diverged from the other side of the connection rail and is connected to the second cylinder, and a first variable control valve disposed on the first variable port and a second variable control valve disposed on the second variable port, wherein the first and second variable control valves are opened or closed accordingly with respect to each other to directly connect the first cylinder with the second cylinder. | 06-12-2014 |
20140165940 | MULTIPLE VARIABLE VALVE LIFT APPARATUS AND ENGINE PROVIDED WITH THE SAME - A multiple variable valve lift apparatus may include a camshaft, a plurality of cams slidably fitted on the camshaft and each having a cam base with a guide groove and a cam lobe, a solenoid valve including an actuating rod capable of being selectively inserted into the guide groove of a cam in the plurality of cams, and a valve opening/closing unit capable of selectively coming in contact with any cam in the plurality of cams. | 06-19-2014 |
20140182531 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus may include a camshaft, a cam piece having first cams having lift amounts that are different formed at one side thereof, a first cam protrusion portion formed near the first cams that is slidably disposed on the camshaft to rotate with the camshaft, a first guide pin that protrudes on one side of an exterior circumference of the first cam protrusion portion, a first guide that is disposed to correspond to the first cam protrusion portion and in which a first guide groove is formed thereon to move the first cam piece in one direction along the camshaft according to the rotation of the first guide pin, and a first operation portion that moves the first guide toward the first cam protrusion portion such that the first guide pin is inserted into the first guide groove of the first guide. | 07-03-2014 |
20140251250 | MULTIPLE VARIABLE VALVE LIFT APPARATUS - A multiple variable valve lift apparatus has a simple design that efficiently operates without interference. The apparatus according may include: a camshaft formed in a hollow cylinder shape; a control shaft disposed in the hollow of the camshaft; a cam that rotates together with the camshaft; a cam rod connecting the control shaft with the cam to move together; an operating unit disposed on the exterior circumference of the camshaft to rotate together with the camshaft; an operating unit rod connecting the control shaft with the operating unit such that the control shaft and the operating unit move together; a solenoid selectively connected with the operating unit, and moving the operating unit along an axial direction of the camshaft; and a tappet contacting the cam to transform rotational motion of the cam to rectilinear motion of a valve. | 09-11-2014 |
20140261267 | MULTISTAGE VARIABLE VALVE LIFT APPARATUS, SYSTEM AND ENGINE - A multistage variable valve lift apparatus includes: a camshaft; a plurality of cams slidably provided on the camshaft and each including a cam base with a guide projection and a cam lobe; a solenoid unit that includes an operating rod with a guide slot into which the guide projection is selectively inserted; and a valve opening/closing portion that comes into selective contact any one of the plurality of cams. | 09-18-2014 |
20140331960 | FLAME JET IGNITION ENGINE - A flame jet ignition engine enables air to be effectively fed to an auxiliary combustion chamber, thereby ensuring facilitating the formation of a fuel mixture of fuel and air and therefore leading to the smooth, stable ignition of the fuel mixture in the auxiliary combustion chamber. | 11-13-2014 |
20150059675 | MULTIPLE VARIABLE VALVE LIFT APPARATUS - A multiple variable valve lift apparatus may include a camshaft rotating by drive of an engine, at least two cam portions slidably disposed on the camshaft and rotatable together with the camshaft, and forming a high cam and a low cam, a valve opening/closing unit operated by one of the high or low cams, at least two operating unit movable along the camshaft to move the at least two cam portions along the camshaft, a control portion selectively moving the operating unit along the camshaft, a pin disposed at the control portion, and a guide rail formed in a groove shape on an exterior circumference of the operating unit such that the pin is insert therein and guiding relative movement of the pin according to rotation of the camshaft and the operating unit such that the operating unit is moved along an axial direction of the camshaft by the pin. | 03-05-2015 |
20150059676 | MULTIPLE VARIABLE VALVE LIFT APPARATUS - A multiple variable valve lift apparatus may include a camshaft rotating by drive of an engine, at least two cam portions disposed on the camshaft to be movable along an axial direction of the camshaft and to be rotated together with the camshaft, and forming a high cam and a low cam, a valve opening/closing unit operated by one of the high cam or the low cam formed at the cam portion, an operating unit disposed on the camshaft to move together with one of the at least two cam portions, a solenoid selectively moving the operating unit along an axial direction of the camshaft, a interlock unit rotating together with the camshaft, and disposed between one and the other of the cam portions on the camshaft to be movable along an axial direction of the camshaft, and a pin operating unit selectively moving the interlock unit along the camshaft. | 03-05-2015 |
20150068473 | MULTIPLE VARIABLE VALVE LIFT APPARATUS - A multiple variable valve lift apparatus connected with a valve opening and closing unit which is adapted to rolling-contact one end thereof with a cam and is operated to open or close by a rotation of the cam, and operating to select the cam which is rolling-contacted with the valve opening and closing unit for changing a valve lift, may include a normal cam rolling-contacting with the valve opening and closing unit so as to realize a normal lift of a predetermined valve, and a low cam rolling-contacting with the valve opening and closing unit so as to realize a valve lift which is lower and longer than the normal lift realized by the normal cam, wherein the normal cam or the low cam is selectively rolling-contacted to the valve opening/closing unit according to a driving state. | 03-12-2015 |
20150105998 | CONTROLLING METHOD FOR FLAME JET IGNITION ENGINE - A controlling method for a flame jet ignition engine includes: a setting step of setting a map as a low load operation region, a medium load operation region, and a high load operation region depending on a load which is measured at the time of the driving of the engine; and a first burning step of performing burning by being controlled with an air-fuel ratio more lean than a theoretical air-fuel ratio and reducing NOx while increasing and compensating for a burning rate depending on burning of the jet ignition apparatus, at the time of entering the low load operation region and the medium load operation region. | 04-16-2015 |
20150176444 | CONTROL APPARATUS OF ENGINE HAVING VARIABLE VALVE LIFT APPARATUS AND A METHOD THEREOF - A control apparatus of an engine may include a variable valve lift apparatus, an engine including a plurality of cylinders generating power by combustion of fuel, at least one intake valve and at least one exhaust valve for opening and closing the cylinder, a variable valve lift apparatus adjusting a valve lift of the intake valve and exhaust valve, and a controller driving the intake valve in a low lift mode by using the variable valve lift apparatus and closing the exhaust valve when one of the cylinders among the plurality of cylinders may be deactivated. | 06-25-2015 |
20150345342 | DESIGN METHOD OF SHORT DURATION CAM, SHORT DURATION CAM, VARIABLE VALVE LIFT APPARATUS INCLUDING THE SAME, AND DESIGN METHOD OF CAM - A short duration cam of a variable valve lift apparatus has a cam lift acceleration including a first peak formed before a center of the cam lift acceleration, and a second peak formed after the center of the cam lift acceleration. A relative ratio of a smaller value to a greater value of the first peak and the second peak is 0.8 or more. | 12-03-2015 |
20160090921 | ENGINE FOR PERFORMING CDA - An engine that can implement cylinder deactivation (CDA) includes: a plurality of cylinders; a variable valve duration apparatus that is mounted in at least one of the plurality of cylinders and that performs a long duration mode and a short duration mode of an intake valve of a corresponding cylinder; a CDA apparatus that is mounted in at least another one of the plurality of cylinders and that performs a general operation mode and a CDA mode of an intake valve and an exhaust valve of a corresponding cylinder; and a controller that controls operation of the variable valve duration apparatus and the CDA apparatus according to an operation state of an engine, wherein the controller controls the variable valve duration apparatus to operate in a short duration mode, when the CDA apparatus operates in the CDA mode. | 03-31-2016 |
20160108860 | ENGINE SYSTEM - An engine system may include main exhaust ports fluidly communicated with each combustion chamber, main exhaust valves opening and closing each main exhaust port, a main exhaust manifold connected with the main exhaust ports, scavenge exhaust ports fluidly communicated with the each combustion chamber, scavenge valves opening and closing the each scavenge exhaust port, a scavenge manifold connected with the scavenge exhaust ports, in which at least a part of an exhaust gas passing through the scavenge manifold is re-circulated to the combustion chamber to be burned. | 04-21-2016 |
Eun-Kyong Choi, Bucheon-Si KR
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20120018871 | STACK PACKAGE AND SEMICONDUCTOR PACKAGE INCLUDING THE SAME - A stack package usable in a three-dimensional (3D) system-in-package (SIP) includes a first semiconductor chip, a second semiconductor chip, and a supporter. The first semiconductor chip includes a through silicon via (TSV), and the second semiconductor chip is stacked on the first semiconductor chip and is electrically connected to the first semiconductor chip through the TSV of the first semiconductor chip. The supporter is attached onto the first semiconductor chip so as to be spaced apart from an edge of the second semiconductor chip. | 01-26-2012 |
Haeng Keol Choi, Bucheon-Si KR
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20090027480 | MOBILE TERMINAL AND METHOD OF PROCESSING CALL SIGNAL THEREIN - A mobile terminal including a camera configured to capture video data, a wireless communication unit configured to receive a video communication call signal and to transmit and receive real-time data with at least one other mobile terminal, a controller configured to control communication with the at least one other mobile terminal to be performed with video data and the real-time data and to prevent audio data associated with the video data from being output on the mobile terminal, when the received video communication call signal is connected, a display configured to display the real-time data and the video data received from the at least one other terminal, and an input unit configured to input the real-time data to be transmitted to the at least one other mobile terminal. | 01-29-2009 |
Hae Woog Choi, Bucheon-Si KR
Patent application number | Description | Published |
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20110135269 | PHOTOCURABLE COATING COMPOSITION - Disclosed is a photocurable coating composition for an optical fiber. The photocurable coating composition can be used to produce an optical fiber having a low polarization mode dispersion (PMD) even by a non-spinning process. The photocurable coating composition includes a photopolymerizable urethane acrylate oligomer, a reactive monomer, a photoinitiator and an amine additive. Further disclosed is an optical fiber using the photocurable coating composition. The optical fiber has a polarization mode dispersion (PMD) of 0.1 ps/√km or less when produced by a non-spinning process. | 06-09-2011 |
20110159285 | PHOTOPOLYMERIZED RESIN COMPOSITION AND OPTICAL FIBER MANUFACTURED WITH SAME - Disclosed is a photopolymerizable resin composition. The photopolymerizable resin composition includes 40 to 80% by weight of a photopolymerizable urethane (meth)acrylate oligomer, 10 to 40% by weight of a low-viscosity multifunctional urethane acrylate oligomer, and 1 to 10% by weight of a photoinitiator. The photopolymerizable resin composition is cured by UV light to form a film whose shrinkage and expansion rates after immersion in hot water are low, leading to minimal changes in tensile strength and adhesive strength before and after water immersion. Further disclosed is an optical fiber using the photopolymerizable resin composition. The optical fiber undergoes minimal change in strip force before and after immersion in hot water. | 06-30-2011 |
Hong-Mook Choi, Bucheon-Si KR
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20100153797 | Apparatus and method of authenticating Joint Test Action Group (JTAG) - In an apparatus including a joint test action group (JTAG) authentication device, and a JTAG authentication method using the apparatus, the apparatus includes a joint test action group (JTAG) authentication device, the apparatus comprising a JTAG access circuit that determines whether to access a JTAG-compliant device according to a predetermined protocol that governs the JTAG-compliant device and the apparatus, wherein the JTAG access circuit at least one of inactivates at least one of inner bus lines and inner units and activates the at least one of the inner bus lines and the inner units according to whether the JTAG-compliant device is accessed. | 06-17-2010 |
20110123020 | ENDECRYPTOR CAPABLE OF PERFORMING PARALLEL PROCESSING AND ENCRYPTION/DECRYPTION METHOD THEREOF - An encryption/decryption method of an endecryptor including a plurality of endecryption units supporting an XES mode with tweak and ciphertext streaming (XTS) includes dividing an input data stream into consecutive data units; inputting the divided data units to the endecryption units, respectively; and simultaneously processing the input data units at the respective endecryption units. According to the encryption/decryption method, parallel processing is performed to encrypt/decrypt data at higher speed. | 05-26-2011 |
20110129085 | CRYPTOGRAPHIC DEVICE FOR IMPLEMENTING S-BOX - Provided is a cryptographic device implementing an S-Box of an encryption algorithm using a many-to-one binary function. The cryptographic device includes: arrays of first logic gates including I first logic gates which each receive 2 bits of an input signal; 2 | 06-02-2011 |
20120060067 | APPARATUS AND METHOD OF AUTHENTICATING JOINT TEST ACTION GROUP (JTAG) - In an apparatus including a joint test action group (JTAG) authentication device, and a JTAG authentication method using the apparatus, the apparatus includes a joint test action group (JTAG) authentication device, the apparatus comprising a JTAG access circuit that determines whether to access a JTAG-compliant device according to a predetermined protocol that governs the JTAG-compliant device and the apparatus, wherein the JTAG access circuit at least one of inactivates at least one of inner bus lines and inner units and activates the at least one of the inner bus lines and the inner units according to whether the JTAG-compliant device is accessed. | 03-08-2012 |
20130259224 | METHOD OF GENERATING A RANDOM PERMUTATION, RANDOM PERMUTATION GENERATING DEVICE, AND ENCRYPTION/DECRYPTION DEVICE HAVING THE SAME - Generating a random permutation by arranging a sequence N numbers in a matrix, performing random arrangement operations on the rows of the matrix to generate an intermediary matrix, performing random arrangement operations on the columns of the intermediary matrix to generate a second intermediary matrix, and arranging the N numbers of the second intermediary matrix as a rearranged sequence of the N numbers. | 10-03-2013 |
20150235053 | SYSTEM ON CHIP, METHOD OF OPERATING THE SAME, AND DEVICES INCLUDING THE SYSTEM ON CHIP - A method of operating a system on chip (SoC) includes converting plain data into cipher data by using an encryption key and transmitting the cipher data directly to a memory controller which controls an operation of a non-volatile memory. The encryption key may be output by a one-time programmable (OTP) memory. | 08-20-2015 |
20150371055 | HOST CONTROLLER AND SYSTEM-ON-CHIP - A host controller that controls a storage device includes an encryption unit that is selectively configured in response to file encryption information and disk encryption information to encrypt data. The encryption unit encrypts the data using a file encryption operation based on the file encryption information and/or a disk encryption operation based on the disk encryption information. | 12-24-2015 |
20150372816 | SEMICONDUCTOR DEVICES AND METHODS OF PROTECTING DATA OF CHANNELS IN THE SAME - A semiconductor device may include: a bus; first and second function modules configured to communicate via the bus; a first encryption module configured to encrypt first data output from the first function module using a first encryption key to generate first encrypted data; and/or a second encryption module configured to decrypt the first encrypted data using the first encryption key, to output the decrypted first data to the second function module, and to encrypt second data output from the second function module using a second encryption key to generate second encrypted data. A semiconductor device may include: a bus; first and second modules configured to communicate via the bus; and/or an encryption module configured to use different encryption policies for first data, which is output from the first module and stored in a memory, and second data, which is output from the second module and stored in the memory. | 12-24-2015 |
20160065361 | ENDECRYPTOR PREVENTING SIDE CHANNEL ATTACK, DRIVING METHOD THEREOF AND CONTROL DEVICE HAVING THE SAME - An endecryptor and a control device are provided. The endecryptor includes a first SBOX configured to replace first input data with first substitution data, a transformation unit configured to replace the first input data with second substitution data and an output terminal configured to output encrypted or decrypted output data based on the first and second substitution data. | 03-03-2016 |
20160112188 | ENCRYPTOR/DECRYPTOR, ELECTRONIC DEVICE INCLUDING ENCRYPTOR/DECRYPTOR, AND METHOD OF OPERATING ENCRYPTOR/DECRYPTOR - An encryptor/decryptor, an electronic device including the encryptor/decryptor, and a method of operating the encryptor/decryptor are provided. The method of operating the encryptor/decryptor includes distributing an input plaintext stream to a plurality of encryption/decryption cores by pieces of plaintext data; performing a first operation by a first encryption/decryption core from among the plurality of encryption/decryption cores; and encrypting the plaintext data to ciphertext data or decrypting the ciphertext data to the plaintext data by each of the plurality of encryption/decryption cores by using a result of performing the first operation in the first encryption/decryption core. | 04-21-2016 |
20160112194 | CRYPTOGRAPHIC DEVICE FOR IMPLEMENTING S-BOX - Provided is a cryptographic device implementing an S-Box of an encryption algorithm using a many-to-one binary function. The cryptographic device includes: arrays of first logic gates including I first logic gates which each receive 2 bits of an input signal; 2 | 04-21-2016 |
Hye Jin Choi, Bucheon-Si KR
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20130141967 | VARIABLE RESISTIVE MEMORY DEVICE AND METHOD OF FABRICATING THE SAME - A variable resistive memory device includes an array of a plurality of memory cells. Each of the plurality of memory cells includes first and second electrodes, and an Sb | 06-06-2013 |
Jae-Hee Choi, Bucheon-Si KR
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20090162796 | METHODS OF FORMING A PATTERN OF A SEMICONDUCTOR DEVICE - In polymers for an anti-reflective coating, compositions for an anti-reflective coating and methods of forming a pattern of a semiconductor device using the same, the compositions for an anti-reflective coating include a polymer that includes a first repeating unit having a basic side group, a second repeating unit having a light-absorbing group, and a third repeating unit having a cross-linkable group; a photoacid generator; a cross-linking agent; and a solvent. The polymer for the anti-reflective coating, which may have a basic side group chemically bound to a backbone of the polymer, may properly adjust diffusion of an acid in an anti-reflective coating layer to improve the profile of a pattern. | 06-25-2009 |
Jae Seung Choi, Bucheon-Si KR
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20150038103 | HOME APPLIANCE AND CONTROL METHOD THEREOF - A control method of a home appliance, the method including retrieving information about a communication device, authenticating the communication device, registering the authenticated communication device, receiving voice data from the registered communication device, outputting a voice signal corresponding to the received voice data to a user, receiving the voice signal from the user, and transmitting voice data corresponding to the received voice signal to the communication device. When the method is used, even if a user loses a communication device in a home, call is possible using a home appliance such as refrigerator. | 02-05-2015 |
Jin Gee Choi, Bucheon-Si KR
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20100195230 | VEHICLE INSIDE MIRROR DEVICE EMPLOYING BALL CLAMPS - The present invention is related to a vehicle inside mirror device employing ball clamp in which a barrel-shaped ball clamp is prepared by assembling a pair of semi-barrel-shaped and symmetrical bodies to absorb a mechanical error or an assembling error caused by a loosen assembly between the ball clamp and a counterpart or caused by a press-fitting manner for inhibiting a deformation of the ball clamp. The vehicle inside mirror device employing ball clamp according to the present invention comprises a mirror through which a driver can view the rear; a housing surrounding the mirror; a mirror mounting part mounted to a rear side of the housing, the mirror mounting part having a barrel-shaped hinge part provided thereon; a first ball clamp surrounding and clamping the hinge part of the mirror mounting part; a second ball clamp provided at a place corresponding to the first ball clamp; a spring provided between the first ball clamp and the second ball clamp for generating an expansion force; a mounting part fixed to a glass or a ceiling of a vehicle and having a hinge part for coupling the second ball clamp thereto; and a tube surrounding the first ball clamp, the second ball clamp and the spring. | 08-05-2010 |
Jinkyu Choi, Bucheon-Si KR
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20150318855 | PULSE GENERATOR AND DRIVING CIRCUIT COMPRISING THE SAME - A pulse generator includes a first inverter configured to inverse an input pulse and output a result, a second inverter configured to inverse the output of the first inverter and output a result, a clamp inverter configured to generate a clamping voltage by clamping the output of the second inverter and generate an output pulse through a source follower which operates according to the clamping voltage, and a temperature compensator configured to compensate for variations in the clamping voltage caused by temperature change. | 11-05-2015 |
20150381152 | BI-DIRECTIONAL TRANSMITTER/RECEIVER COMPRISING TEMPERATURE SENSOR AND DRIVING CIRCUIT COMPRISING THE SAME - A bi-directional transmitter/receiver according to an embodiment includes a pin connected with a main control circuit, a transistor connected with a first electrode to the pin, a Schmitt trigger which determines an output according to a voltage of the pin, and a temperature sensor which is connected to the pin and which senses temperature and outputs temperature information to the pin. A driving circuit for controlling switching operation of one or more switches includes a bi-directional transmitter/receiver. | 12-31-2015 |
Ji Young Choi, Bucheon-Si KR
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20100124368 | Method and apparatus of reconstructing 3D image from 2D images - An apparatus and method of reconstructing a three-dimensional (3D) image from two-dimensional (2D) images are disclosed. Three dimensional (3D) data may be reconstructed in an x-ray generation tube at a limited angle, and repeatedly updated for each pixel. A median from among each pixel of reconstruction data may be selected. Backprojecting may be performed using a search direction weight calculated using a reprojection image and residual image. A 3D image satisfying a Level 1 (L1) norm fidelity and sparsity constraint of the reconstruction data may be reconstructed. | 05-20-2010 |
Jong-Keon Choi, Bucheon-Si KR
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20100163958 | SINGLE-POLY EEPROM CELL AND METHOD FOR FABRICATING THE SAME - A single-poly EEPROM cell and a method for fabricating the same include a single floating gate formed in a single body; first and second read transistors sharing the single floating gate; and a control gate spaced apart from the first and second read transistors and overlapped with the floating gate. In the single-poly EEPROM structure, as a tunneling region is removed and a read PTR is additionally formed, a read margin can be enhanced without increase of overall area. | 07-01-2010 |
Junhyuk Choi, Bucheon-Si KR
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20150197147 | MOTOR UNIT AND GRILL SHUTTER DRIVING DEVICE INCLUDING THE SAME - A motor unit and a grill shutter driving device are disclosed. The grill shutter driving device according to an exemplary embodiment of the present inventive concept includes a body unit interposed between a plurality of grill shutters, a motor unit installed inside the body unit for generating driving power to drive the grill shutter, a control unit for controlling generation of driving power of the motor unit, and a connection unit for providing driving power of the motor unit to the grill shutter. The motor unit includes a plurality of coil units in which electric coil is rolled, a stator to be magnetized, a rotator having magnetism with a permanent magnet and rotating due to interference of the magnetization of the stator, wherein the plurality of coil units are separated with each other in a radial form with even number, and any one side of the mutually facing coil units includes electric coil rolled in, thereby forming an asymmetry coil structure. | 07-16-2015 |
Ju Yong Choi, Bucheon-Si KR
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20150276020 | TWO SPEED TRANSMISSION - A two-speed transmission including: a sun gear configured to be rotated by an external driving force; a planet gear arranged around the sun gear; a ring gear having a gear train; a first clutch configured to be engaged with the sun gear to be restrained by the sun gear if the sun gear is rotated in a first direction; a second clutch configured to be engaged with the ring gear to be restrained by the ring gear if the sun gear is rotated in a second direction; and a carrier configured to receive a driving force from the sun gear by restraint of the first clutch to be driven in a first reduction gear ratio or to receive a driving force that is transferred through the sun gear, the planet gear, and ring gear by restraint of the second clutch to be driven in a second reduction gear ratio. | 10-01-2015 |
Kwang-Seong Choi, Bucheon-Si KR
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20120270611 | METHOD FOR CONTROLLING MOBILE TERMINAL - A method for controlling a mobile terminal is provided. The method includes obtaining operation mode switching information made by a sensor, and determining whether an operation mode switching condition of the mobile terminal is satisfied based on the information; and switching an operation mode of the mobile terminal, if the switching condition is satisfied, wherein obtaining and switching are performed by an application that invokes and uses an Application Programming Interface (API). | 10-25-2012 |
Kyung Dong Choi, Bucheon-Si KR
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20090295976 | TERMINAL AND METHOD OF CONTROLLING THE SAME - A terminal and method of controlling the same are disclosed, by which a user's convenience for photography using a terminal can be further enhanced. The terminal includes a camera, a display, a user input having a camera shutter key for photography, and a controller controlling at least one of more menu icons displayed in a standby mode to be displayed by being overlapped with a preview image obtained for the photography by the camera. A see-through image seen through a transparent display can become a camera preview image. | 12-03-2009 |
20090298537 | TERMINAL AND METHOD OF CONTROLLING THE SAME - A terminal and method of controlling the same are disclosed, by which user's convenience for photography using a terminal can be further enhanced. The terminal includes a camera, a display, a user input having a camera shutter key, and a controller for controlling at least one of more menu icons displayed in a standby mode to be displayed by being overlapped with a camera preview image. A see-through image seen through a transparent display can become a camera preview image. | 12-03-2009 |
Min Jung Choi, Bucheon-Si KR
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20140370600 | METHOD OF PREPARING MESENCHYMAL STEM CELL BASIC CULTURING MEDIUM, MAKING OF CELLULAR THERAPY PRODUCT WITH MESENCHYMAL STEM CELL BASIC CULTURING MEDIUM, AND THE DIFFERENTIATED ONE BY USING THE MEDIUM - Disclosed is a basic culture medium for mesenchymal stem cells, and a cell therapeutic agent cultured and differentiated using same. The basic culture medium reduces the time taken from collection to mass culturing by increasing the proliferation rate of undifferentiated mesenchymal stem cells derived from an adult tissue such as human marrow and adipose tissue, and also is capable of various differentiations into treating agents for bone-forming cells, for cartilage cells, or for fat cells. | 12-18-2014 |
Moon-Ho Choi, Bucheon-Si KR
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20150229226 | RESONANT CONVERTER AND DRIVING METHOD THEREOF - A resonant converter includes a first switch on a primary side and a second switch coupled to the first switch, a first synchronous rectification switch on a secondary side conducted according to a switching operation of the first switch, a second synchronous rectification switch on the secondary side conducted according to a switching operation of the second switch, and a switch control circuit configured to detect a waveform of one end voltage of at least one of the first synchronous rectification switch and the second synchronous rectification switch, determine one of a below region and an above region, and differently control conduction duration of the first and second synchronous rectification switches according to a determined result. | 08-13-2015 |
Sang Hyoun Choi, Bucheon-Si KR
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20140336439 | PORTABLE PHANTOM DEVICE - A portable phantom device according to the present invention is a phantom device which is detachably installed in a bird cage that is coupled to an irradiator, and includes a body provided with an accommodation space having a cylindrical shape and a top of which is open so as to accommodate water, a horizontality adjustment maintaining portion which is detachably coupled to a side wall of the body; and a sensor holding portion which is installed on the side wall of the body so as not to interfere with the horizontality adjustment maintaining portion, so that a sensor for measuring the amount of radiation that is incident on the accommodation space may be inserted from the outside of the body and accommodated in the body (Representative drawing: FIG. | 11-13-2014 |
Sang-Wook Choi, Bucheon-Si KR
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20080306621 | SEMICONDUCTOR MANUFACTURING APPARATUS CONTROL SYSTEM AND STATISTICAL PROCESS CONTROL METHOD THEREOF - A semiconductor manufacturing apparatus control system and a statistical process control method thereof increase reliability. A semiconductor manufacturing apparatus control system includes a plurality of unit process devices for performing various semiconductor unit processes; a plurality of measuring devices for measuring a pattern characteristic of wafer completed in respective unit processes in the plurality of unit process devices; and a host computer for sensing an abnormal state of the unit process by using a T | 12-11-2008 |
Seunghwan Choi, Bucheon-Si KR
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20150128079 | METHOD FOR EXECUTING FUNCTION IN RESPONSE TO TOUCH INPUT AND ELECTRONIC DEVICE IMPLEMENTING THE SAME - A method of executing a function in response to a touch input and an electronic device implementing the same are provided. The method includes determining, by the electronic device, a first priority application among applications installed in the electronic device, mapping a function of the first priority application to a virtual button based on a predetermined touch input, recognizing the touch input on the virtual button that is displayed by a display module, and executing a function corresponding to the recognized touch input. | 05-07-2015 |
Seung-Pil Choi, Bucheon-Si KR
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20120262015 | RESOLVER OF ELECTRIC DRIVING MOTOR FOR VEHICLE - The present invention relates to a resolver of an electric driving motor for vehicle which comprises a rotor, a stator comprising a stator main body which encircles the rotor and teeth which extend from the stator main body to be wound by a coil, a terminal module comprising a terminal end which contacts the coil for an electric connection and a terminal main body which supports the terminal end, and a connector module comprising a connector main body which is detachably coupled to the terminal main body and a lead line which is connected to an outer device and supported by the connector main body and which contacts the terminal end for an electric connection if the connector main body is coupled to the terminal main body, thus simplifying manufacturing process and repairing process and reducing cost. | 10-18-2012 |
20150311768 | RESOLVER OF ELECTRIC DRIVING MOTOR FOR VEHICLE - The present invention relates to a resolver of an electric driving motor for vehicle which comprises a rotor, a stator comprising a stator main body which encircles the rotor and teeth which extend from the stator main body to be wound by a coil, a terminal module comprising a terminal end which contacts the coil for an electric connection and a terminal main body which supports the terminal end, and a connector module comprising a connector main body which is detachably coupled to the terminal main body and a lead line which is connected to an outer device and supported by the connector main body and which contacts the terminal end for an electric connection if the connector main body is coupled to the terminal main body, thus simplifying manufacturing process and repairing process and reducing cost. | 10-29-2015 |
Su Kyoung Choi, Bucheon-Si KR
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20130031592 | SMART SET-TOP BOX AND OPERATION METHOD FOR SMART SERVICE AND DIGITAL TELEVISION SERVICE USING SINGLE OPERATING SYSTEM - A smart set-top box (STB) that provides a smart service and a digital television (DTV) service using a single operating system may be provided. The STB may load applications designed based on an application programming interface (API) of a framework corresponding to the operating system, may load a DTV stack including a DTV service function and a security service function, and may allow communication between at least one of the applications and the DTV stack when the at least one of the applications uses a binder driver included in a kernel of the operating system so as to access the DTV service function included in the DTV stack. | 01-31-2013 |
20140082682 | SMART SET-TOP BOX AND OPERATING METHOD FOR PROVIDING SMART SERVICE AND DIGITAL TELEVISION SERVICE USING DEFAULT MEDIA PLAYER INCLUDED IN SINGLE OPERATING SYSTEM - A method of playing back media data in a single operating system that supports a smart service and digital television (DTV) service is provided. The method includes loading the single operating system that supports the smart service and the DTV service, receiving, by a default media player included in the single operating system from an application, a request for playback of a target media data, determining a type of an identifier (ID) of the target media data, selecting, based on the type of the ID of the target media data, one player from among a video-on-demand (VOD) player and a DTV player different from the default media player, and playing back the target media data by the selected player. | 03-20-2014 |
Sungho Choi, Bucheon-Si KR
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20150064417 | PHOTO-CURABLE/THERMALLY CURABLE COMPOSITION, METHOD FOR MANUFACTURING CURED PRODUCT THEREOF, CURED PRODUCT, AND PRINTED WIRING BOARD INCLUDING THE SAME - A photocurable and thermally curable composition having a viscosity suitable for application to an inkjet printer is prepared. By the composition, it is made possible to directly draw a pattern on a substrate for a printed wiring board. The composition is cured at a relatively low temperature, having excellent adhesion, chemical resistance, heat resistance, and insulating properties after curing. The photocurable and thermally curable composition includes a (meth)acryloyl group-containing monomer, a block isocyanate, and a photo-polymerization initiator, wherein the composition is applicable to inkjet printing. | 03-05-2015 |
Sung Hoon Choi, Bucheon-Si KR
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20090146554 | ORGANIC LIGHT EMITTING DIODE AND ORGANIC ELECTRO-LUMINESCENCE DISPLAY DEVICE THEREWITH - An organic light emitting diode has improved light emitting efficiency and life span. The organic light emitting diode includes an electron transfer layer formed by mixing Liq and organic substance of predetermined chemical formula at a predetermined ratio. In accordance therewith, a driving voltage of the organic light emitting diode is lowered. As a result, the light emitting efficiency and the life span of the organic light emitting diode can be improved. | 06-11-2009 |
20110156573 | DUAL PANEL TYPE ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - An organic electroluminescent device including a switching element and a driving element connected to the switching element on a substrate including a pixel region, a cathode connected to the driving element, in which the cathode includes molybdenum (Mo), an emitting layer on the cathode, and an anode on the emitting layer. | 06-30-2011 |
Sung-Kyu Choi, Bucheon-Si KR
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20080286007 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus and an image forming method are provided, in which a drum itself forms an electrostatic latent image corresponding to print data that is to be printed, on a surface of the drum, the electrostatic latent image is developed so as to generate a developed image, the developed image is transferred onto a printing medium, and the transferred image is fixed to the printing medium. Accordingly, the time required to print the print data is drastically reduced, it is possible to reduce the size of an image forming apparatus, and high quality print outs can be obtained. | 11-20-2008 |
20130117698 | DISPLAY APPARATUS AND METHOD THEREOF - A display method of a display apparatus is provided. The display method includes displaying an interaction image including one or more objects therein, detecting a touch input with respect to the interaction image, and if detecting the touch input, changing a display status of the interaction image to express physical interaction of the one or more objects in response to the touch input. | 05-09-2013 |
Yong Keon Choi, Bucheon-Si KR
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20100163983 | Semiconductor Device and Method for Fabricating the Same - Semiconductor devices and methods for fabricating the same are disclosed. The semiconductor device includes gate electrodes having sidewall spacers on a semiconductor substrate, double diffusion drain regions in the semiconductor substrate adjacent to the sidewall spacers, double diffusion junction regions aligned with the gate electrodes, and source/drain regions in the double diffusion junction regions. | 07-01-2010 |
Yuk Nam Choi, Bucheon-Si KR
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20110148093 | PIPE COUPLING DEVICE - A pipe coupling device is provided. The pipe coupling device includes a body part, fastening parts, and pressurizing parts. The body part has a multi-stepped insertion hole penetrating the central portion thereof, a stepped latching portion formed on the inner circumference of the insertion hole to limit the insertion depths of pipes, externally threaded portions formed on the outer circumference of both ends thereof, and first projections continuously formed on the upper surfaces of the externally threaded portions. Each of the fastening parts has an internally threaded portion formed on the inner circumference thereof and is screwed onto the externally threaded portion, a coupling hole penetrating the central portion thereof so as to be in communication with the insertion hole, a first inclined plane formed around the boundary between the internally threaded portion and the insertion hole, and second projections continuously formed on the lower surface of the first inclined plane to pressurize the first projections and to be engaged with the first projections when the fastening part is fastened to the body part. Each of the pressurizing parts has a stepped foot portion formed on the outer circumference of one side thereof so as to be introduced into the coupling hole, a pressurizing piece integrated with the stepped foot portion, a stepped latching portion formed on the outer circumference of the other side thereof, cut-away grooves formed on the outer circumferential surface of the pressurizing piece to elastically widen the pressurizing piece, and a pressurizing space formed in the central portion thereof. The first inclined plane of the fastening part fastened to the body part pressurizes the outer circumferential surface of the stepped latching portion, or the outer circumference of the stepped latching portion is moved inward along the first inclined plane and the pressurizing piece shrinks inward to pressurize the outer circumference of the pipe inserted into the pressurizing space when the pipe inserted into the pressurizing space is withdrawn. | 06-23-2011 |
20120312404 | BRANCH PIPE - The manifold type pipe structure according to the present invention is characterized in that at least branch pipe is formed at a pipe passage having a flow hole through which fluid flows, and an input valve is formed at an end portion of the pipe passage, and a joint coupler forming an output valve at the other end portion is prepared, and an output valve of a joint coupler of the other places is joint-connected with a limited rotation angle at an input valve of at least one joint coupler. | 12-13-2012 |
Yu Ri Choi, Bucheon-Si KR
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20130029320 | DEVICE AND METHOD FOR DETECTING BIOMOLECULE - Disclosed are a method for detecting a biomolecule including: immobilizing a nucleic acid aptamer capable of specifically binding to a biomolecule to be detected on the surface of a bead on which fluorophores are arranged; hybridizing the nucleic acid aptamer with a guard nucleic acid (g-nucleic acid) labeled with a quencher to quench fluorescence; and reacting a sample including the biomolecule to be detected with the nucleic acid aptamer and detecting a fluorescence signal emitted as the biomolecule binds with the nucleic acid aptamer and the g-nucleic acid labeled with the quencher is separated, and a device for detecting a biomolecule for conducting the detection method. The present disclosure allows for effective, convenient and fast detection of the biomolecule to be detected, enables quantitative analysis, and enables detection of even a trace amount of sample. | 01-31-2013 |