Jong Duck
Jong Duck Kim, Suwon KR
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20100156307 | POWER SUPPLY FOR LIGHT EMITTING DIODE DISPLAY - There is provided a power supply for a light emitting diode display using a light emitting diode as a backlight unit that unites a DC power supply provided from outside the light emitting diode display and a driving power supply provided inside the light emitting diode display. A power supply of a light emitting diode display according to an aspect of the invention may include: a power conversion unit converting commercial AC power into at least one driving power having a predetermined voltage level; and a backlight driving unit generating a backlight driving signal using the driving power from the power conversion unit, wherein the power conversion unit and the backlight driving unit are mounted onto one printed circuit board. | 06-24-2010 |
20110043510 | POWER SUPPLY FOR LIQUID CRYSTAL DISPLAY - The invention relates to a power supply for a liquid crystal display using a light emitting diode for a backlight unit, and more particularly, to a power supply combining a DC power supply outside the liquid crystal display with a driving power supply inside the liquid crystal display into a single power supply. The power supply for a liquid crystal display according to an aspect of the invention may include: a power conversion section converting commercial AC power into at least one operating power having a predetermined voltage level through a switching operation; a backlight driving section switching the operating power from the power conversion section into backlight driving power; and a power switching control section controlling the switching operation of the power conversion section on the basis of a first feedback signal having a voltage level of the operating power from the power conversion section and a second feedback signal having a voltage level of the backlight driving power from the backlight driving section, wherein the power conversion section, the backlight driving section and the power switching control section are mounted on a single printed circuit board. | 02-24-2011 |
20120056544 | APPARATUS FOR DRIVING LIGHT EMITTING DEVICE - An apparatus for driving a light emitting device includes: a current control unit generating a current control signal according to a preset current setting value; a constant current circuit unit varying a current resistance value according to the current control signal of the current control unit, detecting a current flowing in a light emitting unit including a plurality of emitting devices by using the current resistance value, and controlling the current flowing in the light emitting unit based on the detected current; and a voltage control unit varying a voltage resistance value according to a preset voltage setting value, detecting a voltage supplied to the light emitting unit by using the voltage resistance value, and determining whether or not the voltage is in an over-voltage state, based on the detected voltage. | 03-08-2012 |
Jong Duck Kim, Daejeon KR
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20090021179 | BACKLIGHT DRIVING SYSTEM FOR LIQUID CRYSTAL DISPLAY - There is provided a backlight driving system for a liquid crystal display that can reduce size and weight of a product because a DC-DC converter is not used when commercial AC power is converted into lamp driving power. A backlight driving system for a liquid crystal display according to an aspect of the invention includes a power supply unit converting commercial alternating current (AC) power into direct current (DC) power having a voltage level set beforehand, an inverter unit converting the DC power from the power supply unit into AC power at a one-to-one conversion ratio set beforehand, a boosting unit boosting the AC power from the inverter unit into lamp lighting power set beforehand; and a lamp group receiving the lamp lighting power from the boosting unit to emit light. | 01-22-2009 |
Jong Duck Kwak, Gwacheon KR
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20140350749 | VEHICLE MANAGEMENT SYSTEM AND METHOD - A vehicle management system and method that include part control units that execute operations of vehicle parts based on sensed information of a vehicle. A control server receives vehicle and driver information. A main controller is disposed within the vehicle and communicates with the part control units, the control server, and an occupant terminal, to mediate authentication of the occupant terminal under control of the control server. The main controller receives information from the part control units and provides the information to the occupant terminal. Additionally, the main controller receives a request from the occupant terminal and executes the operation of the part control units. Furthermore, the main controller provides vehicle states and the request from the occupant terminal, and allows a program related to execution of operation of a part control unit for a new electric/electronic part to be installed when the new electric/electronic part is installed. | 11-27-2014 |
Jong Duck Kwak, Gwacheon-Si KR
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20150274100 | APPARATUS AND METHOD OF AUTOMATICALLY CONTROLLING CONVENIENT DEVICE FOR VEHICLE - An apparatus and a method of automatically controlling a convenient device for a vehicle includes a macro generator configured to collect control values of a driver for a plurality of convenient devices for the vehicle to learn a control pattern of the driver, to collect environmental information when the control pattern is generated, and to generate a macro by matching the learned control pattern with the environmental information. A macro provider is configured to identify the driver in the vehicle, to collect the environmental information when the driver boards the vehicle, to search for the macro corresponding to the identified driver and the environmental information, and to provide macro search results to the driver when the driver is the vehicle. | 10-01-2015 |
Jong Duck Shin, Gyeonggi-Do KR
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20080302035 | Internal Fixer For Anchor Having Releasable Tensioning Steel Wire - The present invention provides an internal fixer for an anchor having a releasable tensioning steel wire. The internal fixer of the present invention includes a first outer body ( | 12-11-2008 |