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Byung Duck

Byung Duck Cho, Seoul KR

Patent application numberDescriptionPublished
20090034672METHOD AND APPARATUS FOR TIME SYNCHRONIZATION USING GPS INFORMATION IN COMMUNICATION SYSTEM - A method and apparatus for time synchronization (TS) method using GPS information in a communication system synchronizing the time of slave nodes, which do not have a GPS receiver, by using GPS information of a node having a GPS receiver. The method includes the steps of extracting 1PPS, TOD, 1PPS_en, and clocks using GPS signals by a grand master node having a GPS receiver, stabilizing the signals, generating a sync message for TS, and transmitting the sync message to a slave node; receiving the sync message by the slave node and conducting a TS operation using OFCC synchronization technology extracting 1PPS, TOD, and 1PPS_en signals using the modified TOD information by the block and delivering to a stabilization block of the slave node for stabilization; and redelivering to the TS block to update TOD information and generate a sync message for TS of a second slave node.02-05-2009
20090042544METHOD AND APPARATUS FOR PROVIDING SERVICE USING USER IDENTIFICATION IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for providing a service from a voice-service dedicated terminal to a data-service dedicated terminal by using user identification information of a mobile terminal user in a wireless communication system are provided. The method includes generating a message including an identification of a receiving-side terminal and a service type of the message, and transmitting the generated message to a service server.02-12-2009
20090168808APPARATUS AND METHOD FOR PERFORMING TIME SYNCHRONIZATION USING GPS INFORMATION IN COMMUNICATION SYSTEM - Disclosed is an apparatus and a method for performing time synchronization by using Global Positioning System (GPS) information in a communication system. The apparatus comprises a grand-master node having a GPS receiver, for generating a synchronizing message required to synchronize time on slave nodes by using Time Of Day (TOD) information received from the GPS receiver and at least one slave node for receiving the synchronizing message required to synchronize time from the grand-master node or from another slave node, for carrying out time synchronization operation by using an Offset and Frequency Compensation Clock (OFCC) synchronization process supporting time offset and frequency separation compensation, and for generating a synchronizing message required to synchronize time on other slave nodes.07-02-2009
20100149130SENSITIVITY-VARIABLE TOUCH SENSOR ACCORDING TO USER INTERFACE MODE OF TERMINAL AND METHOD FOR PROVIDING THE SAME - A method for improving the convenience in use of a touch sensor and a touch screen applied to a portable terminal and a terminal using the method are provided. The method includes determining a current user interface mode and function of the terminal; searching for an optimum sensitivity value corresponding to the determined user interlace mode and function; and setting the sensitivity value of the touch sensor to the optimum sensitivity value.06-17-2010
20100181988METHOD FOR REDUCING POWER CONSUMPTION BASED ON MOTION SENSOR AND PORTABLE TERMINAL USING THE SAME - A method for reducing power consumption based on a motion sensor and a portable terminal adapted to the method are disclosed. The method includes terminating driving of a motion recognition program according to whether an input is detected by at least one sensor unit disposed in the portable terminal, and switching a mode of a controller included in the portable terminal into a motion recognition deactivation mode. The motion sensor-based portable terminal can reduce the power consumption, thereby lengthening the life span of the battery. The user can use the motion sensor-based portable terminal for a long period of time without frequently recharging its battery.07-22-2010
20110205985DATA TRANSMISSION APPARATUS AND METHOD FOR A HIGH-SPEED PACKET ACCESS SYSTEM - A data transmission method for a high-speed packet access system includes: sending, by a user equipment, packet data containing scheduling information having size information of a packet buffer through an uplink channel to a base station, and sending quality indicator information and acknowledgement information through another uplink channel to the base station; determining, by the base station, the value of a turbo mode flag by comparing amounts of data stored in the packet buffer of the user equipment and a packet buffer of the base station respectively with preset thresholds; and deactivating, by the user equipment when the turbo mode flag of an order message contained in received control data, packet data reception and control data transmission, and redirecting transmit power of a specified transmitter to a packet data transmitter to increase transmit power of the packet data transmitter for faster packet data upload.08-25-2011

Patent applications by Byung Duck Cho, Seoul KR

Byung Duck Kim, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20100199901ELECTRICALLY CONDUCTIVE METAL COMPOSITE EMBROIDERY YARN AND EMBROIDERED CIRCUIT USING THEREOF - The present invention relates to an electrically conductive metal composite embroidery yarn and embroidered circuit using thereof which may be applicable to smart textiles. More particularly, this invention relates to an electrically conductive metal composite embroidery yarn and embroidered circuit for smart textiles which can be used as power supply and signal transmission lines. The present invention provides an embroidered circuit which consists of a metal composite embroidery yarn and a dielectric fabric substrate, wherein the electrically conductive metal composite embroidery yarn is embroidered on the dielectric fabric substrate to form a circuit.08-12-2010

Byung Duck Song, Seoul KR

Patent application numberDescriptionPublished
20090168035Exposure method and exposure apparatus for photosensitive film - An exposure apparatus for a photosensitive film includes: light-emitting diodes for generating rays to expose a photosensitive film; a light shield positioned between the light-emitting diodes to prevent noise; a stage for receiving a substrate having the photosensitive film thereon; and a parallelizer positioned between the light-emitting diodes and the stage for redirecting the rays from the light-emitting diodes to be perpendicularly incident upon the photosensitive film.07-02-2009

Byung-Duck Lim, Seoul KR

Patent application numberDescriptionPublished
20120037210PHOTOVOLTAIC MODULE WITH COOLNG DEVICE AND MANUFACTURING METHOD OF COOLING DEVICE - The present invention relates to a photovoltaic module with a cooling device and a method of manufacturing the cooling device. The photovoltaic module includes a photovoltaic module, a cooling chamber and a heat sink. The photovoltaic module includes solar cells connected to each other in series and in parallel. The cooling chamber includes an upper plate, a lower plate and a working fluid. The upper plate is attached to the photovoltaic module and has a flange formed on the edge thereof. The lower plate has a flange formed on the edge thereof. The flanges of the upper and lower plates are joined to each other so that an inner space is defined between the upper and lower plates. The working fluid is injected into the inner space so that a cooling operation can be carried out by means of boiling and condensing. The heat sink is in surface contact with the lower plate of the cooling chamber.02-16-2012

Byung-Duck Park, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20100081470MOBILE TERMINAL - A mobile terminal includes a housing comprising a light emitting portion disposed on at least a portion of the housing, a light emitting unit disposed inside the housing, a light transmission member configured to transmit light emitted from the light emitting unit, and a guiding structure formed on the light transmission member and configured to direct and emit the light toward the light emitting portion.04-01-2010

Byung-Duck Park, Seoul KR

Patent application numberDescriptionPublished
20090015565PORTABLE TERMINAL - Disclosed is a portable terminal including a window for inputting information by a touching manner, a terminal body having a display module which is mounted therein and a window mounting portion for mounting the window at a front surface of the display module, and a coupling unit having one end inserted into the window and another end coupled to the window mounting portion so as to couple the window to the terminal body. The window and the terminal body are structurally coupled to each other, thereby providing stronger coupling force between the window and the terminal body.01-15-2009