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| Number | Title | Issue Date |
| 7643023 | Matrix type display device and display method thereof In the case where graphic data GD1 needing a high-speed rendering are to be written in a frame memory (14) from an image writing unit (1), the graphic data GD1 are written in the frame memory (14) in accordance with an instruction ... | 01/05/2010 |
| 7633499 | Method and apparatus for synchronizing an analog video signal to an LCD monitor A method, system and apparatus for synchronizing an analog video signal to an LCD monitor is described. For each of a succession of associated video frames are surveyed for a number of displayed features based upon a pseudo-random selection of regions into which the... | 12/15/2009 |
| 7633498 | Display driver with charge pumping signals synchronized to different clocks for multiple modes A display driver generates a respective charge pumping signal and respective driving signals synchronized to a respective same clock signal for each of the CPU and video interface modes. Because such respective signals are synchronized to a respective same clock sig... | 12/15/2009 |
| 7623126 | Method and apparatus for asynchronous display of graphic images A display controller in a computer system controls the asynchronous output of graphics display data in a computer system having at least one fixed resolution flat panel display. Fixed panel displays may have problems displaying non-native resolutions particularly at... | 11/24/2009 |
| RE40859 | Method and system for displaying an analog image by a digital display device A clock recovery circuit in a digital display unit for recovering a time reference signal associated with analog display data. The clock recovery circuit includes a phase-locked loop (PLL) implemented in digital domain and an analog filter to eliminate any undesirab... | 07/21/2009 |
| 7564454 | Methods and displays having a self-calibrating delay line A driver arrangement for a display includes at least one driver, such as a column driver, and a delay line arrangement coupled to the driver. The delay line arrangement delays a data signal provided to the driver by a delay period selectable from a plurality of poss... | 07/21/2009 |
| 7499044 | System for synchronizing display of images in a multi-display computer system An image display system synchronizes the display of images on a plurality of display devices. The system includes a first computer system generating a first signal representing first image data to be displayed on a first display device, a second computer system gene... | 03/03/2009 |
| 7477247 | Detecting attachment or removal of a display monitor A change in state is detected at an output port terminal of a video graphics adapter card when an analog monitor is connected or disconnected. A negative current source causes a negative voltage to be developed at the output port terminal during a blanking interval ... | 01/13/2009 |
| 7477246 | Synchronization of lamp stabilizing pulses with frame rates of PWM LCOS devices A lamp synchronization signal may be used in an LCOS imaging environment, such as a projection system. ... | 01/13/2009 |
| 7471288 | Light emitting display device and driving control method therefor A clock signal in synchronization with a data writing signal, every scanning line, which is supplied from a light-emitting control circuit 4 to a scanning driver 6, is supplied to an oscillator 12 which generates a reference switching signal, ac... | 12/30/2008 |
| 7471289 | Image display apparatus, timing controller for driver IC, and source driver IC An image display apparatus includes a timing controller to generate a control signal according to image data, a driver IC to take in image data according to the control signal and to supply the image data to source lines, and a display panel to perform screen-displa... | 12/30/2008 |
| 7463256 | Automatic phase adjustment for display Autophase adjustment is initiated in a display device that digitally displays analog video signals. The autophase adjustment is initiated based on monitoring of at least one of the horizontal and vertical synchronization signal pulse rates and polarity. When a chang... | 12/09/2008 |
| 7456830 | Liquid crystal display device In a liquid crystal display (LCD) device, two continuous frame image data to be displayed on a display unit are compared with each other by a comparator circuit, and horizontal and vertical synchronizing signals are regulated in accordance with a comparison result. ... | 11/25/2008 |
| 7450117 | Apparatus and method for restoring active signal and synchronous signal A synchronous signal/active signal restoring apparatus and method are disclosed in which a display device receives a digital image signal transmitted in an optical signal form from a source device through an optical cable, a physical medium which can not transmit a ... | 11/11/2008 |
| 7446764 | Display control device, display control method, and the like The display control device that causes a display screen to display predetermined image information includes; a display adjustment signal superimposing unit that superimposes a display adjustment signal for adjusting the timing of displaying a pixel in accordance wit... | 11/04/2008 |
| 7443389 | Pixel clock spread spectrum modulation Circuits, methods, and apparatus that reduce the peak or maximum EMI generated by video signals provided to a CRT or digital display monitor. One exemplary embodiment provides for spreading the spectrum of the video signal in order to spread or diffuse its peak spec... | 10/28/2008 |
| 7443391 | Current drive circuit and display A current drive circuit is provided with a bias generator and a current output unit; wherein the bias generator is provided with: p-channel MOS transistor, p-channel MOS transistor, and reference current source; and the current output unit is provided with: p-channe... | 10/28/2008 |
| 7439967 | Electro-optical device, driving circuit thereof, driving method thereof, and electronic apparatus using electro-optical device An electro-optical device includes pixels provided at intersections of a plurality of scanning lines and a plurality of data lines, a scanning line driving circuit for applying a selected voltage to the respective scanning lines, and a data line driving circuit for ... | 10/21/2008 |
| 7432982 | OSD insert circuit An On-Screen-Display (OSD) insert circuit includes an OSD signal generator for generating a switching signal and an analog additional image signal based on a first clock signal, an analog-to-digital converter for converting the generated additional image signal into... | 10/07/2008 |
| 7432918 | Video signal processing circuit The video signal processing circuit has a clamp circuit for clamping a composite video signal including a copy guard signal with amplitude of from white to black as well as a pseudo horizontal synchronization signal, a brilliant signal, and a synchronization signal.... | 10/07/2008 |
| 7429985 | Semiconductor device and driving method thereof Brightness irregularities that develop in a light emitting device due to is persion among pixels in the threshold values of TFTs used for supplying electric current to light emitting devices become obstacles to improved image quality of the light emitting device. As... | 09/30/2008 |
| 7429963 | Image processing device and method An image processing device includes a frame buffer, a first display engine, a clock signal generator, a spread spectrum clock generator, a first-in-first-out (FIFO) buffer and a reset signal generator. The FIFO buffer receives and stores the pixel digital data from ... | 09/30/2008 |
| RE40504 | Display and display driver with on/off power controller used to prevent damage to the display Signal management control units 471-47n of respective scan drivers LSI in an LCD module are cascade-connected and each have the same construction. A detected signal of the signal management control unit 47J is a data signal latch clock LP appli... | 09/16/2008 |
| 7420553 | Control circuit and method thereof for reducing power consumption of a display device The invention discloses a control circuit and method thereof, which enable a display device to have low power consumption. The display device is able to switch between a normal mode and a standby mode, and reduce the power consumption of the display device under the... | 09/02/2008 |
| 7408543 | Voltage-supply circuit, voltage-supply method, power-supply circuit, electro-optical unit, and electronic apparatus A power-supply circuit includes a capacitor, which is connected to a terminal at a first end while being grounded at the second end, for supplying a hold voltage between both ends thereof to a load; a capacitor connected, via a diode, to the terminal at a first end;... | 08/05/2008 |
| 7408542 | Method of generating an address signal in a plasma panel and device for implementing said method The method of the invention generates an address signal for addressing columns or rows of a PDP. In the case of addressing a column, for example, the method comprises the following steps. For a phase T1, a DC voltage V1 is applied across the ter... | 08/05/2008 |
| 7403199 | Energy recovery circuit and driving method thereof An energy recovery circuit of the present invention includes a panel capacitor, a source capacitor for recovering and charging the voltage of the panel capacitor and re-providing the charged voltage to the panel capacitor, a reference voltage supply unit for supplyi... | 07/22/2008 |
| 7400308 | Method and apparatus for stereoscopic display employing an array of pixels each employing an organic light emitting diode An improved stereoscopic display apparatus and methodology includes an array of OLED-based pixels that are cleared (i.e., placed in a “dark” state) before being loaded with the desired analog voltage potential signal for display during both left perspective imag... | 07/15/2008 |
| RE40422 | Device and methods for repeatedly updating the function of a LCD monitor A monitor control system capable of reprogramming the function of a LCD monitor. The monitor control system utilizes VGA signal lines for video signal transmission during normal mode of operation and the same VGA signal lines for transmitting erase/record commands a... | 07/08/2008 |
| 7394461 | Displaying apparatus and method for controlling the same A displaying apparatus includes a connector having a DDC communication pin which communicates with a video card provided in a computer main body, a video signal processing unit which processes picture signals supplied through the connector, a power circuit unit whic... | 07/01/2008 |
| RE40396 | Method for detecting and separating vertical and horizonal synchronous signals from computer system A method for detecting and separating vertical and horizontal synchronous signals from a computer system. The input forms of the vertical and horizontal synchronous signals from the computer system are detected by scanning a vertical synchronous signal terminal, a h... | 06/24/2008 |
| 7391416 | Fine tuning a sampling clock of analog signals having digital information for optimal digital display Method and system for fine tuning frequency and phase of a sampling clock of analog signals (R, G, B) having digital information, for sampling the analog signals within an optimal sampling period, enabling optimal display by a digital display device (92). Sma... | 06/24/2008 |
| 7391405 | Method and apparatus for driving liquid crystal display A method and apparatus for driving a liquid crystal display wherein a picture quality can be clearly kept upon conversion of a resolution mode of the liquid crystal display. In the method and apparatus, a reset signal is generated at an enable initiation time of a d... | 06/24/2008 |
| 7385616 | Method for automatically adjusting picture frames on a display device A method for automatically adjusting pictures on a display device, by which a plurality of reference points and the corresponding slope values are stored in a memory of the display device. The reference points and the corresponding slope values, as well as the synch... | 06/10/2008 |
| 7382362 | Apparatus and method for processing synch signals in graphic controllers An apparatus and method for processing Hsync and Vsync signals in graphic controllers to avoid a false reading of pulses caused by glitches. The apparatus and method involve detecting when the synch signal crosses the threshold for the first time. When this occurs, ... | 06/03/2008 |
| 7382366 | Method, apparatus, system, and graphical user interface for selecting overclocking parameters of a graphics system Overclocking parameters in a graphics system are automatically set. In one embodiment, in response to a user request, overclocking parameters for different sets of overclocking parameters are tested using a graphical stress test to select optimum overclocking parame... | 06/03/2008 |
| 7379046 | Display driver and electro-optical device A display driver includes an instruction signal generation circuit which generates a data-fetch-start-instruction-signal; a data latch which fetches display data at data fetch timings including a fetch start timing that is determined by the data-fetch-start-instruct... | 05/27/2008 |
| RE40325 | Device and method for repeatedly updating the function of a monitor A device and a method for updating the function of a monitor according to the invention. By using the USB signal lines directly for data transmission and recording the data of a monitor controller to the erasable programmable read only memory, data update can be ach... | 05/20/2008 |
| 7375708 | Image display panel, image display apparatus and image display method A data signal line drive circuit supplying a video signal to a pixel array performs pseudo tone gradation processing with respect to the video signal that is sent to an n number of data signal lines SL by m ( | 05/20/2008 |
| 7372443 | Display-device drive circuit and drive method, display device, and projection display device To provide a drive circuit, a drive method, a display device, and a projection display device capable of increasing contrast of an image a mean gray level (first gray level characterizing brightness) Gf is detected from an image signal DATA per unit time. On the bas... | 05/13/2008 |
