Computer graphics processing and selective visual display system – Computer graphic processing system
Patent
1996-08-02
1999-04-06
Chauhan, U.
Computer graphics processing and selective visual display system
Computer graphic processing system
345435, 345473, 345113, 345509, G06F 1500, G06F 1300
Patent
active
058925210
ABSTRACT:
A data processing apparatus includes a graphics display device for displaying a display frame comprising a plurality of display frame pixels. A sprite management system composes the display frame from a plurality of graphic sprites. Each graphic sprite comprises a plurality of sprite pixels and corresponding sprite pixel values. Each sprite has a specified depth relative to the other sprites. One of the sprites is designated to be a video sprite. This sprite is loaded with a chroma-key value. The sprite management system includes a data processing device connected to access a display frame composition buffer. The data processing device is programmed to write pixel values of individual sprites to the display frame composition buffer. This writing begins with the pixel values of the sprite having the greatest depth and proceeds with the pixel values of the remaining sprites in order of decreasing sprite depth. The display frame data is then passed to a video overlay board which overlays a video image over those pixels containing the chroma-key value. The result is a display frame in which the plurality of graphic sprites, including the video sprite, appear layered with respect to each other in accordance with their respectively specified depths.
REFERENCES:
patent: 5327156 (1994-07-01), Masukane et al
patent: 5398075 (1995-03-01), Freytag et al.
patent: 5402147 (1995-03-01), Chen et al.
patent: 5487145 (1996-01-01), Marsh et al.
patent: 5594473 (1997-01-01), Miner et al.
patent: 5596693 (1997-01-01), Needle et al.
patent: 5638501 (1997-06-01), Gough et al.
patent: 5748174 (1998-05-01), Wong et al.
Blossom Jon
Edwards Michael
Chauhan U.
Microsoft Corporation
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