| Patent application number | Description | Published |
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| 20090315815 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - The present invention relates to a display device and a driving method thereof. The display device includes a light emitting device, a capacitor connected between a first electrical contact and a second electrical contact, a driving transistor, a switching transistor being controlled by a scanning signal to be connected between a data voltage and the first electrical contact, a first compensation transistor being controlled by a first compensation signal to be connected between the first electrical contact and a first voltage, and a second compensation transistor being controlled by a second compensation signal to be connected between the second electrical contact and a second voltage. The driving transistor includes an input terminal that is connected to a driving voltage, an output terminal that is connected to the second electrical contact, and a control terminal that is connected to the first electrical contact. | 12-24-2009 |
| 20100060147 | ORGANIC LIGHT EMITTING DISPLAY - The present invention provides an organic light emitting display (OLED). The OLED includes a substrate, a first electrode arranged on a subpixel area of the substrate, an organic light emitting layer arranged on the first electrode, and a second electrode arranged on the organic light emitting layer, which extends to a non-subpixel area. An auxiliary electrode that is connected to the second electrode is arranged on the substrate, thereby the auxiliary electrode applies a same voltage as that of the second electrode. | 03-11-2010 |
| 20100072482 | ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF MANUFACTURING THE SAME - Disclosed are an organic light emitting display and a method of manufacturing the same. The organic light emitting includes a first substrate, a first electrode, an organic light emitting layer, and a second electrode. The first substrate includes a pixel region showing an image and a peripheral region surrounding the pixel region. The first electrode is formed in the pixel region of the first substrate. The organic light emitting layer is formed on the first electrode. The second electrode is formed on the organic light emitting layer and extends to the peripheral region. An auxiliary electrode is formed on the second electrode to contact the second electrode on an entire surface of the first substrate, thereby applying a voltage having the same voltage level as that of the second electrode. | 03-25-2010 |
| 20100073266 | DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - The present invention provides a display device and a method of driving the same. The display device includes: a light-emitting device; a first capacitor connected between a first contact point and a second contact point; a driving transistor including an input terminal connected to a first voltage, an output terminal, and a control terminal connected to the second contact point; a first switching transistor controlled by a first control signal and connected between a data voltage and the first contact point; a second switching transistor controlled by a second control signal and connected between a second voltage and the first contact point; a third switching transistor controlled by a third control signal and connected between the second contact point and the second voltage; a fourth switching transistor controlled by the first control signal and connected between the second contact point and the output terminal of the driving transistor; and a fifth switching transistor controlled by the second control signal and connected between the light-emitting device and the output terminal of the driving transistor. | 03-25-2010 |
| 20100078647 | THIN FILM TRANSISTOR SUBSTRATE AND ORGANIC LIGHT EMITTING DISPLAY HAVING THE SAME - In an organic light emitting display, a switching transistor includes an active pattern having a crystal structure grown at an angle of 0°±10° relative to a current flow direction, and a driving transistor includes an active pattern having a crystal structure grown at an angle of 90°±10° relative to a current flow direction. As a result, the driving transistor more precisely controls intensity of supply voltage applied to an organic light emitting layer. | 04-01-2010 |
| 20100134461 | DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - A display device and a method of driving the same, in which the display device includes: a light-emitting element; a first capacitor connected between first and second contact points; a driving transistor that has a control terminal connected to the second contact point, an input terminal connected to a driving voltage, and an output terminal connected to the light-emitting element; a first switching transistor connected between a data voltage or a sustain voltage and the first contact point; a second switching transistor connected between the second contact point and the output terminal of the driving transistor; and a third switching transistor connected between a reference current source and the output terminal of the driving transistor. | 06-03-2010 |
| 20100141644 | DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - A display device and a method of driving the same in which moving image blurring is prevented and a contrast ratio is enhanced by providing a light-emitting element, switching transistors, and a driving transistor with driving signals that include specific voltages at predetermined times, so that the light-emitting element does not emit light for an entire frame and the light output is not influenced by a threshold voltage of the driving transistor. | 06-10-2010 |
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| 20080298767 | Method, medium and apparatus summarizing moving pictures of sports games - Provided is a method and apparatus for summarizing a moving picture of a sports game. The method includes detecting play sections of the moving picture; calculating a degree of importance of each play section; and summarizing the moving picture including each play section using the degree of importance of each play section. | 12-04-2008 |
| 20090136135 | Apparatus and method for recognizing characters - Provided is an apparatus and method for recognizing characters. The apparatus includes a display unit to display an image in which a region of interest or an error region is indicated, and a character recognition result, a region-of-interest setting unit to set the region of interest in the image displayed on the display unit, a recognition unit to perform character recognition on the region of interest or the error region and provide the character recognition result to the display unit, and an error correction unit to set the error region in the image displayed on the display region, perform image copying on the set error region according to a user input, and provide a handwriting input using the image copying to the recognition unit. | 05-28-2009 |
| 20090173214 | Method and apparatus for storing/searching for music - Provided are a method and apparatus for generating and storing a database that may be searched for music upon a user's request, and a method and apparatus for searching for music corresponding to the user's request. According to an embodiment of the present invention, a plurality of melodies are divided based on phrase breaks and are stored, and a number of melodies which are similar to the user's request are detected from the stored melodies. | 07-09-2009 |
| 20100315292 | DIRECTION OF ARRIVAL ESTIMATION APPARATUS AND METHOD THEREOF - An apparatus for estimating a Direction of Arrival (DOA) of a wideband includes a first signal receiving unit and a second signal receiving unit to receive a wideband signal while satisfying d≦Mc/2f | 12-16-2010 |
| 20110051955 | MICROPHONE SIGNAL COMPENSATION APPARATUS AND METHOD THEREOF - A microphone signal compensation apparatus includes a plurality of audio input units to respectively receive a target signal, each audio input unit of the plurality of audio input units including a microphone; a constant filter unit to selectively apply a constant filtering calibration scheme to signals output by the plurality of audio input units to compensate for a difference in at least one characteristic among the audio input units, the constant filtering calibration scheme being estimated from an average value of a ratio of a desired signal to a reference signal among the signals output by the plurality of audio input units; and a noise remover to remove noise from the signals processed by the constant filter unit, and to separate the target signal from the signals from which the noise has been removed. | 03-03-2011 |
| 20110082692 | METHOD AND APPARATUS FOR REMOVING SIGNAL NOISE - A method and apparatus for removing signal noise using multiple bands are provided. The noise removal apparatus may divide the entire frequency band into a plurality of sub-bands using a multiband filter that has characteristics similar to an auditory system of a human being and may effectively remove noise in each of the sub-bands according to a frequency subtraction scheme. | 04-07-2011 |
| 20110182437 | SIGNAL SEPARATION SYSTEM AND METHOD FOR AUTOMATICALLY SELECTING THRESHOLD TO SEPARATE SOUND SOURCES - A signal separation system and a method for automatically selecting a threshold to separate sound sources. The signal separation system calculates a power sequence for a target signal using a target mask, and a power sequence for an interference signal using a complementary mask, based on signals received from a plurality of microphones; applies a nonlinearity to the target signal power sequence and the interference signal power sequence; calculates a correlation coefficient of the nonlinear target signal power sequence and the nonlinear interference signal power sequence; and sets a noise masking threshold that minimizes the correlation coefficient. | 07-28-2011 |
| Patent application number | Description | Published |
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| 20090035007 | IMAGE FORMING APPARATUS - An image forming apparatus includes a printing engine to form an image on a printing medium through printing processes, an engine frame to support the printing engine having a driving system to drive the printing engine, a high voltage power supply provided in a surface of the engine frame to apply a high voltage to at least one of units performing the printing processes, a main board provided in a surface of the engine frame adjacent to the surface having the high voltage power supply, and having a system engine controller to control the printing engine and a video controller to control a video signal, first and second main connectors respectively provided at lateral sides of the high voltage power supply and the main board adjacent to each other, and a connection control line to connect the first and second main connectors. | 02-05-2009 |
| 20090245861 | IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - An image forming apparatus is disclosed. The image forming apparatus includes a body having an opening perforated in one side thereof, a developing unit detachably mounted to the body through the opening, a body cover configured to cover a rear portion of the developing unit in a mounting direction of the developing unit and adapted to open or close the opening, and a memory unit provided at the rear portion of the developing unit and having a developing device terminal. The body cover includes a body terminal to come into contact with the memory unit. Accordingly, an electrical connection between the developing unit and the body can be made less susceptible to vibration, etc. caused during operation of a drive motor. | 10-01-2009 |
| 20100008692 | IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - An image forming apparatus including a power supply unit which supplies high voltage AC power, a developing unit having at least one developing roller to receive first AC power from the power supply unit to supply a developer to an image receptor, and an erasing unit to receive second AC power to attenuate high frequency noise of the developing unit. | 01-14-2010 |
| 20100040384 | Device and method for detecting position of unit mounted in image forming apparatus - A device and a method for detecting the position of a developing unit mounted in an image forming apparatus are provided. The device includes an image forming controller outputting a clock signal for accessing first to Nth (N is a positive integer greater than 1) developing units, a switching unit performing a switching operation for connecting the image forming controller to a Kth (K is a positive integer greater than 1 and equal to or smaller than N) mounting slot in order to transmit the clock signal to the Kth mounting slot among first to Nth mounting slots in which the first to Nth developing units are mounted, respectively, first to Nth clock signal lines connecting the switching unit to the first to Nth mounting slots, and a data line commonly connecting the image forming controller to the first to Nth mounting slots, wherein the switching unit performs the switching operation in accordance with a switching signal for connecting the image forming controller to the Kth mounting slot and the image forming controller determines whether the Kth developing unit is mounted on the Kth mounting slot in response to reception of an access signal from the Kth mounting slot. | 02-18-2010 |
| 20110093702 | IMAGE FORMING APPARATUS - An image forming apparatus includes a main controller unit provided in a main body of the image forming apparatus. The main controller includes a replacement component management memory to store lifespan information of a replacement component is provided in An authentication operation is performed with respect to the replacement component management memory, and the lifespan information of the replacement component is encrypted and stored in the replacement component management memory. Accordingly, the security of the main controller unit may be enhanced and illegal use of the replacement component may be prevented. | 04-21-2011 |
| 20110097097 | Image forming apparatus with developing units having different voltage levels - An image forming apparatus is disclosed. Zener diode separately installed to correspond to each developing device so as to form a difference in potential between the developing bias voltage and the supply bias voltage of each developing device, is installed at a common end, so that a deviation of the developing voltage applied to the developing device affected by a deviation of Zener diode components can be reduced, resulting in an increased color image quality. In addition, the Zener diode is installed in a common end, such that the number of Zener diodes is reduced, resulting in a reduction in production costs. | 04-28-2011 |
| 20110164293 | Image control device for printer and method of compensating for light amount drift of photosensor used in the image control device - A method of compensating for a light amount drift of a photosensor used in an image control device, wherein the photosensor includes a light emitting portion and a light receiving portion which projects light onto an image control mark formed on an intermediate transfer medium of a printer and detects an optical signal reflected by the image control mark, thereby controlling the quality of an image. In the compensation method, the light amount drift is calculated by projecting light on the intermediate transfer medium, detecting an amount of light reflected by the intermediate transfer medium, and comparing the detected light amount with a pre-set reference light amount. The detected light amount is then corrected to be substantially equal to the reference light amount. | 07-07-2011 |
| 20110170143 | Method and apparatus for controlling color registration sensors - A method and apparatus for controlling registration sensors are provided, in which a transfer unit transfers an electrostatic latent image onto a printing medium, at least one registration sensor senses image alignment errors by irradiating light to the transfer unit to sense reflected light, a sensor data storage unit stores characteristics data of the respective registration sensors, and a sensor control unit controls the registration sensors based on the characteristics data of the respective registration sensors, wherein the registration sensors are placed into the transfer unit. Accordingly, time for performing an algorithm of color registration can be reduced, and registration can be achieved correctly in a short time, irrespective of a set frame of the image forming apparatus. | 07-14-2011 |
