Computer graphics processing and selective visual display system – Computer graphics display memory system – Graphic display memory controller
Reexamination Certificate
2005-03-22
2005-03-22
Chauhan, Ulka J. (Department: 2676)
Computer graphics processing and selective visual display system
Computer graphics display memory system
Graphic display memory controller
C345S613000, C345S520000, C345S537000, C345S555000, C345S560000
Reexamination Certificate
active
06870542
ABSTRACT:
A graphics processing system performs filtering of oversampled data during a scanout operation. Sample values are read from an oversampled frame buffer and filtered during scanout; the filtered color values (one per pixel) are provided to a display device without an intervening step of storing the filtered data in a frame buffer. In one embodiment, the filtering circuit includes a memory interface configured to read data values corresponding to sample points from a frame buffer containing the oversampled data; and a filter configured to receive the data values provided by the memory interface, to compute a pixel value from the data values, and to transmit the pixel value for displaying by a display device, wherein the filter computes the pixel value during a scanout operation.
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Alben Jonah M.
Donovan Walter
Lew Stephen D.
Rao Krishnaraj S.
Toksvig Michael
Chauhan Ulka J.
NVIDIA Corporation
Townsend and Townsend / and Crew LLP
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