Patents Assigned to TVIA, Inc.
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Publication number: 20080158428Abstract: A method and system for cross color elimination is disclosed in processing of a component video signal comprising component luminance and chrominance information. Aspects of the exemplary embodiments include using separated luminance and chrominance information for each pixel in a current frame, getting absolute distance values between C=a current frame pixel color, P=a previous frame pixel color, H=a high frequency color of the previous frame, and O=a center of a color space; comparing each absolute distance value with a predetermined threshold, wherein if any of the absolute distance values exceed the predetermined threshold, then the pixel is a cross color pixel; and for each cross color pixel, replacing a current frame pixel color with a high frequency average pixel color.Type: ApplicationFiled: January 3, 2007Publication date: July 3, 2008Applicant: TVIA, INC.Inventors: Takatoshi Ishii, Guangjun Miao
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Publication number: 20080158246Abstract: A method and system are provided for managing digital color for a display device having a display screen. Aspects the exemplary embodiments include receiving input display data comprising digital pixel data, wherein the data for each pixel represents 2D differential color space having X, Y coordinate values; remapping at least a portion of the coordinate values of the input display data locally in coordinates of the differential color space by reading from a memory of the display device color correction data that is configured to correct color errors of the display screen, wherein the color correction data is also represented in the differential color space, but the color correction data is only stored for a subset of X, Y coordinate values comprising the differential color space; interpolating the correction data read from the memory to generate remapped display data; and outputting the remapped display data for subsequent display.Type: ApplicationFiled: January 3, 2007Publication date: July 3, 2008Applicant: TVIA, INC.Inventors: Takatoshi Ishii, Yunshu Zhang
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Publication number: 20080068396Abstract: A method and system are provided for performing gamma correction on display data. Aspects the exemplary embodiment include using at least a portion of the display data to fetch in parallel from a table memory a gamma correction data value stored at an odd address and a gamma correction data value stored at an even address; detecting when the display data comprises a low address; and in response to detecting that the display data comprises a low address, performing a right shift on the gamma correction data values, thereby decreasing the values of the gamma correction data prior to performing interpolation on the gamma compensation data values.Type: ApplicationFiled: September 19, 2006Publication date: March 20, 2008Applicant: TVIA, Inc.Inventor: Takatoshi Ishii
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Publication number: 20080068293Abstract: A method and system are provided for correcting non-uniformity of a display device having a display screen comprising a pixel matrix. Aspects the exemplary embodiment include in response to receiving display data for display, reading from a memory of the display device compensation data stored for a subset of pixel locations on the display screen, the compensation data configured to correct non-uniformity characteristics of the display screen; interpolating the compensation data to generate uniformity correction data; overlaying the display data with the uniformity correction data to produce uniformity corrected display data; and outputting the uniformity corrected display data for subsequent display.Type: ApplicationFiled: September 19, 2006Publication date: March 20, 2008Applicant: TVIA, Inc.Inventor: Takatoshi Ishii
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Publication number: 20080068404Abstract: A frame rate controller method and system are provided.Type: ApplicationFiled: September 19, 2006Publication date: March 20, 2008Applicant: TVIA, Inc.Inventor: Takatoshi Ishii
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Patent number: 6707505Abstract: A single chip system including a first input channel for receiving digital video input data, a second channel for receiving computer graphics data, means for synchronizing the two channels to one another utilizing timing signals which may be selected to provide the most accurate timing available, means for changing the rate of presentation of the computer graphics signals to match the rate of presentation of the video signals, means for adjusting the format in which the computer graphics signals are presented to the same format as the format in which the video signals are presented, and means for selectively blending the computer graphics and video signals furnished as video input data without modification for presentation on a single output display.Type: GrantFiled: March 26, 1999Date of Patent: March 16, 2004Assignee: TVIA, Inc.Inventors: Jhi-Chung Kuo, John Francis McNally, Jeff Jang-Fang Suen, Henry Choy, Paul Cheng, Lin Liang
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Patent number: 6552750Abstract: A circuit for converting a selected portion of graphics data generated for a computer display for presentation on a selected portion of a television display including a first data path for transferring graphics data from a frame buffer memory storing graphics data to a television display without changing the size of the data, a second data path for transferring graphics data from the frame buffer memory storing graphics data to the television display while selectably changing the size of the data, the second data path including circuitry for selecting a portion of the television display to present the selected data transferred by the second data path, and zooming circuitry for enlarging data transferred by the second data path to fill the selected portion of the television display, and means for selecting data stored in the frame buffer for display.Type: GrantFiled: March 21, 2000Date of Patent: April 22, 2003Assignee: TVIA, Inc.Inventors: Jeff Jang-Fang Suen, Bo Liu