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Byung Hoon

Byung Hoon Jeon, Tokyo JP

Patent application number	Description	Published
20120134625	OPTICAL MODULE, OPTICAL MODULE CONNECTOR, AND OPTICAL DEFLECTION MEMBER - An optical module configured to perform conversion between an optical signal and an electrical signal includes a board having a flat-plate shape; a light-receiving part and a light-emitting part attached on a surface of the board, the light-receiving part being configured to receive a first optical signal input from an optical cable and the light-emitting part being configured to output a second optical signal based on an input electrical signal; and an optical deflection member configured to deflect the first optical signal substantially 90 degrees and output the first optical signal to the light-receiving part and to deflect the second optical signal input from the light-emitting part substantially 90 degrees and output the second optical signal to the optical cable, the optical deflection member including multiple optical waveguides arranged in a first array and a second array.	05-31-2012

Byung Hoon Jeong, Hwasung-Si KR

Patent application number	Description	Published
20100244915	Clock signal generation circuit for reducuing current consumption, and semiconductor device having the same - In an example embodiment, the semiconductor device includes a clock signal generation circuit. The clock signal generation circuit is configured to generate at least one control clock signal in response to an external clock signal and a read command signal. The clock signal generation circuit includes a plurality of delay circuits, and the clock signal generation circuit is configured to selectively disable at least one of the plurality of delay circuits to reduce power consumption.	09-30-2010

Byung Hoon Jung, Daejeon KR

Patent application number	Description	Published
20110070884	METHOD FOR MULTI-POINT COOPERATION CONSIDERING DELAY IN WIRELESS COMMUNICATION SYSTEM - Provided is a method of a multi-node cooperation considering a delay in a wireless communication system. A frame format may perform scheduling so that uplink cooperation terminals having a similar delay attribute may be classified into an uplink cooperation zone, to thereby prevent interference between the uplink cooperation zone and a non-cooperation zone. An extended cyclic prefix may be applied according to a delay attribute occurring due to an application of the multi-node cooperation. A cooperation base station of an uplink and a downlink may be determined based on the extended cyclic prefix.	03-24-2011

Byung Hoon Kang, Seoul KR

Patent application number	Description	Published
20110043933	RENS MOVING MODULE - Disclosed herein is a Lens moving MODULE. The Lens moving MODULE includes a lens barrel having at least one lens which brings an image of a subject into focus. A housing having a space for the lens barrel, and friction member formed in axially. A piezoelectric actuator provided in an outer circumferential surface of the lens barrel, and generating vibration when external voltage is applied to the piezoelectric actuator, with a through hole formed for having the friction member. An elastic member include the friction member, and inserted into the through hole of the piezoelectric actuator, and applying the vibrations to the friction member.	02-24-2011
20110063741	LENS ACTUATING MODULE - Disclosed herein is a lens actuating module. The module includes a housing having an accommodating space and a bush guide. A lens barrel is accommodated in the accommodating space and includes a lens and a barrel hook. A driving unit applies a driving force to a bush such that it is moved up in the direction of the optical axis, by pulling force of contraction of a shape memory alloy wire. The bush is guided by the bush guide and engages with the barrel hook. A rotary member is interposed between the housing and the lens barrel. A preload unit pulls the lens barrel in the direction of the optical axis such that the lens barrel moves down to an original position, and pulls the lens barrel in a direction perpendicular to the optical axis to maintain a contact of the lens barrel with the rotary member.	03-17-2011
20110091193	LENS ACTUATING MODULE - A lens actuating module. The module includes a housing and a lens barrel. received in an accommodating space of the housing and having a lens therein. A driving unit applies a driving force to the lens barrel such that the barrel can be moved up in an optical axis direction by a pulling force of contraction of an SMA (shape memory alloy) wire fixed to the housing. A rotary member is interposed between the housing and the lens barrel. A preload unit pulls the lens barrel in the optical axis direction such that the lens barrel can move down to an original position, and pulls the lens barrel in a direction to perpendicular to the optical axis to maintain a contact of the lens barrel with the rotary member. The lens barrel is moved by the contracted or extended amount of the SMA wire, thus realizing a simple structure and miniaturization.	04-21-2011

Byung Hoon Lee, Seoul KR

Patent application number	Description	Published
20100319012	Spindle Motor Assembly With Encoder - The present invention provides a spindle motor assembly with an encoder. The spindle motor includes a circuit board, a spindle motor and an encoder. A connector is mounted on the upper surface of the circuit board. The spindle motor is provided on the circuit board. The spindle motor functions to rotate a disk placed thereon. The encoder is provided on the connector and senses a detection mark of the disk and thereby detects a rotating speed of the disk. As such, because the encoder is installed on the connector, the number of components is reduced, and the production cost can be thus reduced.	12-16-2010

Byung Hoon Min, Seoul KR

Patent application number	Description	Published
20100214900	METHOD FOR DELETING DATA OF OPTICAL DISK AND OPTICAL DISK DRIVE INCLUDING OPTICAL DISK EMULATION - Provided are a method and a device for permanently erasing data of an optical disk in an optical disk drive including an optical disk emulation. According to the method, an erase command of data recorded on an optical disk is received and it is determined whether the optical disk is a rewritable optical disk or not. Then, an output power of a laser to be projected is raised when the optical disk is the rewritable optical disk and then the data recorded on the optical disk are erased through an output power of the laser. Furthermore, the optical disk drive includes an optical disk storage unit, a contents memory unit, a disk type determination unit, a laser power adjustor, a pick-up unit, and a controller.	08-26-2010

Byung Hoon Min, Daejun KR

Patent application number	Description	Published
20080206567	Plastic Conductive Particles and Manufacturing Method Thereof - Plastic conductive particles having an outer diameter of 2.5 μm˜1 mm obtained by sequentially plating a 0.1˜10 μm thick metal plating layer and a 1˜100 μm thick Pb solder layer or a Pb-free solder layer on plastic core beads having a high elastic modulus of compression, and a method of manufacturing thereof. The method of manufacturing the plastic conductive particles includes preparing plastic core beads having excellent thermal properties and a high elastic modulus of compression, etching surfaces of the plastic core beads for surface treatment thereof, forming a metal plating layer via electroless plating to improve adhesion between the bead surface and the metal plating layer, and then forming a solder layer such that a sealed hexagonal barrel is immersed in an electroplating solution and then an electroplating process is conducted using a mesh barrel rotating 360° at 6˜10 rpm or a mesh barrel having a structure in which one surface of a conventional sealed hexagonal barrel is open, and rotating 200° in right and left directions at 1˜5 rpm, to manufacture plastic conductive particles having a size of 1 mm or less. The plastic conductive particles of this invention enable the maintenance of packaging gaps, and thus can be applied to IC packaging, LCD packaging and other conductive materials.	08-28-2008

Byung-Hoon Chang, Gumi-Si KR

Patent application number	Description	Published
20090290085	Gate-in-panel type liquid crystal display device and method of fabricating the same - A liquid crystal display device comprises: a first substrate and a second substrate facing and spaced apart from each other, the first substrate and the second substrate including an active area, a signal input area and a pad area, the signal input area and the pad area being disposed at a periphery of the active area; a gate line and a data line on the first substrate in the active area, the gate line and the data line crossing each other; first connection lines and second connection lines in the signal input area, the first connection lines extending to the pad area and crossing the second connection lines; a gate connection pattern contacting the first connection lines and the second connection lines; a common electrode on the second substrate; a shortage-preventing pattern on the common electrode and corresponding to the gate connection pattern; a seal pattern surrounding the active area, the seal pattern including a conductive ball; and a liquid crystal layer between the first and second substrates in the seal pattern.	11-26-2009

Byung-Hoon Chung, Seoul KR

Patent application number	Description	Published
20100142350	HYBRID OPTICAL DISK DRIVE, METHOD OF OPERATING THE SAME, AND ELECTRONIC SYSTEM ADOPTING THE HYBRID OPTICAL DISK DRIVE - Provided are a hybrid optical disk drive, a method of driving the hybrid optical disk drive, and an electronic system including the hybrid optical disk drive. The hybrid optical disk drive may include an optical disk drive unit for recording/storing data in an optical disk and a solid-state drive (SSD) unit having a storage capacity that is equal to or greater than a maximum storage capacity of the optical disk, which is compatible with the hybrid optical disk drive.	06-10-2010
20120124266	HYBRID STORAGE DEVICE AND ELECTRONIC SYSTEM USING THE SAME - A hybrid storage device is provided. The hybrid storage device includes a first storage part that comprises an interface device based on a first standard, a second storage part that comprises an interface device based on a second standard, and a connector for interface devices that is shared by the first storage part and the second storage part and comprises a plurality of pins.	05-17-2012

Byung-Hoon Jeong, Suwon-Si KR

Patent application number	Description	Published
20080211554	Time Delay Compensation Circuit Comprising Delay Cells Having Various Unit Time Delays - A time delay compensation circuit comprises delay cells having various unit time delays. A delay-locked loop, a type of the time delay compensation circuit, includes a phase detector, a delay line, and a filter unit. The phase detector compares the phase of the external clock signal with that of the feedback clock signal and outputs a phase difference as an error control signal. The delay line includes a plurality of delay cells having various unit time delays. The number of delay cells is adjusted in response to a predetermined shift signal. The delay line receives the external clock signal and outputs an output clock signal, which is obtained by controlling the phase of the external clock signal. The filter unit generates the shift signal, which selects the number of delay cells in the delay line, in response to the error control signal. In the time delay compensation circuit, the front delay cells, which are used to compensate for a delay of an external clock signal having a high frequency, have short unit time delays so as to reduce jitter due to quantization error. Also, the rear delay cells, which are used to compensate for a delay of the external clock signal having a low frequency, have long unit time delays so as to reduce the number of delay cells required for the delay compensation.	09-04-2008

Byung-Hoon Park, Suwon-Si KR

Patent application number	Description	Published
20090114358	Sawdust-reinforced pulp material and method of producing the same - A sawdust-reinforced pulp material and its preparation method are herein disclosed Specifically, the method for preparing the sawdust-reinforced pulp material comprises the steps of: mixing 70% to 85% by weight of a pulp prepared from waste paper with 15% to 30% by weight of sawdust, based on the total weight of pulp and sawdust, to prepare a mixture of pulp and sawdust; blending the mixture with an adhesive in the weight ratio of 1:1; pouring the mixture blended with the adhesive into a mold to form a pulp material; and naturally drying the formed pulp material at an ambient temperature of 20 to 25 degrees C to produce the sawdust-reinforced pulp material.	05-07-2009