Patent application number | Description | Published |
20080297440 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - The display device includes a display panel which includes a plurality of pixels, a gate driver which sequentially applies gate-on voltages to the plurality of pixels for a first period and a data driver which generates data voltages for at least two pixels of the plurality of pixels for the first period, and supplies the data voltages to the two pixels of the plurality of pixels, respectively, wherein an application order of the data voltages applied to the at least two pixels of the plurality of pixels is reversed in two adjacent frames. | 12-04-2008 |
20090021610 | APPARATUS AND METHOD FOR CONTROLLING NOISE CAUSED BY VIBRATION IN CAMERA MODULE FOR MOBILE DEVICE - An apparatus and method for controlling noise caused by vibration in a camera module for a mobile device are provided. The method includes transmitting a vibration signal sensed by a vibration sensor to a Choice Coil Motor (VCM) driver based on the vibration signal, applying, by the VCM driver, a reverse bias to a VCM upon receiving, by the VCM driver, the vibration signal from the vibration sensor, and exerting, by the VCM to which the reverse bias is applied, an electromagnetic force in a reverse direction in order to fix and halt an actuator. | 01-22-2009 |
20090058807 | MOUSE POINTER FUNCTION EXECUTION APPARATUS AND METHOD IN PORTABLE TERMINAL EQUIPPED WITH CAMERA - An apparatus and a method for executing a mouse pointer function in a portable terminal equipped with a camera are disclosed. The method includes: capturing an external image signal by a camera module; sampling the external image signal and converting a sampled image signal into image data; mapping a group of pixels of the image data generated by the sampling to a group of pixels of an image sensor for each unit pixel on a one-to-one basis; detecting coordinate values of image data including a point light source in the group of the mapped pixels; determining if a point light source is actually included in the detected coordinate values of the image data; and displaying the detected coordinate values of the image data determined to include the point light source on a screen. | 03-05-2009 |
20090060426 | OPTICAL MODULE - An optical module having a second connector unit mounted on the bottom of a first connector unit to reduce the size of the radiation member and the optical module. The optical module includes a first connector unit, a radiation member provided on a first side of the first connector unit to support the first connector unit and radiate heat, a second connector provided on the first connector unit to electrically connect the first connector unit to a PCB, and a fastening member provided on surfaces of the first and second connector units, which face each other, to fasten the first and second connectors to each other. The optical module is advantageous reduces the size of the radiation member and renders a more compact optical module. | 03-05-2009 |
20090066649 | MOUSE POINTER FUNCTION EXECUTION APPARATUS AND METHOD IN PORTABLE TERMINAL EQUIPPED WITH CAMERA - Disclosed is an apparatus and a method for executing a mouse pointer function in a portable terminal equipped with a camera. The method includes: capturing an external image signal by a camera module; sampling the external image signal and converting a sampled image signal into image data; mapping a group of pixels of the image data generated by the sampling to a group of pixels of an image sensor for each unit pixel on a one-to-one basis; detecting coordinate values of all image data including a point light source in the group of the mapped pixels; determining if a point light source is actually included in all of the image data including the point light source; and activating the detected coordinate values of all of the image data including the point light source and displaying the activated coordinate values on a screen. | 03-12-2009 |
20090110542 | Fan guard and outdoor unit for air conditioner having the same - An outdoor unit for an air conditioner is disclosed. The outdoor unit according to the present invention comprises a housing which has an air inlet and an air outlet, a ventilation fan rotatably mounted in the housing, and a fan guard connected to the housing to cover the air outlet. Here, the fan guard comprises a plurality of closed ribs arranged sequentially and concentrically between a center and an outline thereof, and a plurality of radial ribs arranged in radial directions to interconnect the plurality of closed ribs, in such a manner that some of the closed ribs, which are disposed at intermediate positions near tips of the ventilation fan, are at a further distance from the ventilation fan than the other closed ribs, which are disposed near the center and the outline. Accordingly, since the fan guard is convexly raised at a position corresponding to the tips of the ventilation fan, thereby guaranteeing a predetermined space between the fan guard and the tips where the airflow is fastest, the flow resistance and the flow-induced noise can be reduced. | 04-30-2009 |
20090122229 | Light guiding and dispersing plate and display device having the same - A monolithic light guiding and dispersing plate is provided in a backlighted display panel for receiving input light from one or more edge sources and for guiding the received light throughout the plate for substantially uniform reflection upwardly and substantially uniform dispersal toward an image forming plane located above the light guiding and dispersing plate. In one embodiment, the light guiding and dispersing plate has a light receiving surface upon which the light generated by an edge light source is incident, a top major surface which is adjacent to the light receiving surface and on which a plurality of first protrusions are formed and elongated in a first direction, wherein the first protrusions have cross-sections in the shapes of partial ellipses. The plate further has a bottom major surface in which light reflecting recesses are defined to reflect light upwardly towards the top major surface. | 05-14-2009 |
20090179239 | CMOS image sensors and methods of manufacturing the same - A complementary metal-oxide-semiconductor image sensor may include: a semiconductor substrate; a photodiode formed on a first portion of the semiconductor substrate; a transfer gate formed on the semiconductor substrate, near the photodiode, to transfer optical charges accumulated in the photodiode; a floating diffusion area formed on a second portion of the semiconductor substrate, on an opposite side of the transfer gate from the photodiode, to accommodate the optical charges; and/or a channel area formed under the transfer gate and contacting a side of the photodiode to transfer the optical charges. The transfer gate may be formed, at least in part, of transparent material. A method of manufacturing a complimentary metal-oxide-semiconductor image sensor may include: forming the photodiode; forming the floating diffusion area, separate from the photodiode; and/or forming the transfer gate, near the photodiode, to transfer optical charges accumulated in the photodiode. | 07-16-2009 |
20090185198 | IMAGE FORMING APPARATUS - An image forming apparatus including: a plurality of medium trays to stack a print medium having an image formed thereon by an image forming unit; a driving source to momentarily apply a direction switching signal; a selector to select a carrying path of the print medium having the image formed thereon, the carrying path directing the print medium to one of the plurality of medium trays; and a switch unit connected to the driving source to set a position of the selector in order to direct the print medium along the carrying path according to the direction switching signal. Accordingly, power is only used momentarily to direct the print medium to a medium tray from among a plurality of medium trays. | 07-23-2009 |
20100082789 | IP ADDRESS ASSIGNMENT METHOD AND APPARATUS FOR PROVIDING IP SERVICE IN A ZIGBEE NETWORK SYSTEM - A ZIGBEE® network system and a method for assigning an Internet Protocol (IP) address in a ZIGBEE® network system are provided. The ZIGBEE® network system includes a client device for joining a ZIGBEE® network and being assigned an IP address used for transmitting and receiving data; a server device for assigning the IP address to the client device; and a ZIGBEE® coordinator for forming the ZIGBEE® network, storing server profile information for each server device that has joined the formed ZIGBEE® network, receiving client profile information for the client device from the client device, and determining a server device that will assign an IP address to the client device, using the received client profile information. | 04-01-2010 |
20110090717 | Two-stage insulated bidirectional DC/DC power converter using a constant duty ratio LLC resonant converter - A two-stage insulated bidirectional DC/DC power converter is disclosed. A two-stage insulated bidirectional DC/DC power converter according to an embodiment of the invention has the characteristic of including: an LLC resonant converter operating at a constant duty ratio; a bidirectional converter joined to a front part of the LLC resonant converter and configured to perform a booster converter function of outputting the input voltage at a consistent input voltage for the LLC resonant converter, and a buck converter function of reducing the voltage by way of the LLC resonant converter and then outputting a consistent voltage; and a bidirectional converter control unit configured to control changes in an input voltage of the bidirectional converter and regulate an output voltage of the LLC resonant converter to thereby maintain a consistent input voltage of the LLC resonant converter, such that the LLC resonant converter operates at a constant duty ratio. | 04-21-2011 |
20130119932 | BATTERY CHARGING APPARATUS - A battery charging apparatus includes an input power processing unit configured to receive an AC power and convert the received AC power into an output voltage for power conversion; a hybrid power converting unit configured to use a common transformer to separately convert the output voltage of the input power processing unit into a first voltage and a second voltage for charging a high voltage battery and an auxiliary battery; a high voltage charging unit configured to drop the first voltage output from the hybrid power converting unit and charge the high voltage battery with the dropped first voltage; and an auxiliary voltage charging unit configured to generate an auxiliary voltage by dropping the second voltage output from the hybrid power converting unit or a voltage of the high voltage battery, and charge the auxiliary battery with the auxiliary voltage. | 05-16-2013 |
20130258727 | CONTROL CIRCUIT FOR DISCONTINUOUS CONDUCTION MODE POWER FACTOR CORRECTION CONVERTER USING HARMONIC MODULATION - A control circuit for a discontinuous conduction mode power factor correction converter using harmonic modulation includes: a first difference circuit configured to calculate and output a difference between an output voltage of a discontinuous conduction mode power factor correction converter and a reference voltage; a PI converter configured to perform a proportional integral control on an output signal of the first difference circuit, and output a signal having an arbitrary duty ratio; a second difference circuit configured to output a difference between a rectified input voltage, which is input to the discontinuous conduction mode power factor correction converter, and a harmonic modulation factor DC voltage; and a multiplication circuit configured to multiply an output of the PI controller and an output of the second difference circuit, and output a PFC control signal to a switch of the discontinuous conduction mode power factor correction converter. | 10-03-2013 |
20140049219 | BATTERY CHARGING APPARATUS FOR ELECTRIC VEHICLE - A battery charging apparatus for an electric vehicle includes a first converter part configured to convert a first voltage, which is inputted with rectification, into a second voltage; and a second converter part configured to output a third voltage for charging a battery for the electric vehicle by converting the second voltage into a direct current. The output end of the first converter part comprises a first and a second output terminal. The second converter part comprises a first switching element connected with the first output terminal; a second switching element connected with the second output terminal; a first output capacitor serially connected with the first switching element; and a second output capacitor serially connected with the second switching element. The time during which the first switching element is turned on does not overlap the time during which the second switching element is turned on. | 02-20-2014 |
20140069479 | Photoelectric Device Module and Manufacturing Method Thereof - A solar cell module according to the present invention includes photoelectric converting cells, interconnect wiring, and a bus bar, wherein the interconnect wiring is attached by a conductive adhesive layer, and the bus bar is attached by an insulating adhesive layer. A method for manufacturing the solar cell module includes attaching the interconnect wiring and the bus bar by the conductive adhesive layer and the insulating adhesive layer, and according to the method, a solar cell module with excellent characteristics can be manufactured through a simple and inexpensive method. | 03-13-2014 |
20140073719 | SYNTHESIS OF SUPERHYDROPHOBIC COPOLYMER USING CARBON DIOXIDE SOLVENT AND APPLICATION THEREOF - A method for preparing a superhydrophobic random copolymer using a carbon dioxide solvent, and more particularly, to a method for preparing a surface coating copolymer having a superhydrophobic performance by radical copolymerization of a hydrocarbon monomer, and a silicone monomer or a fluorinated monomer using a supercritical carbon dioxide solvent as a copolymerization solvent. | 03-13-2014 |