Split video architecture for personal computers

Details Split video architecture for personal computers Split video architecture for personal computers

1995-11-03

1998-09-15

Tung, Kee M.

Computer graphics processing and selective visual display system

Computer graphic processing system

Integrated circuit

345509, 345439, 345153, 345154, G06F 1200

Patent

active

058086307

ABSTRACT:
A split video architecture in accordance with the present invention merges or composites the video data into a common frame buffer with the desktop data. For example, pixels of a first format (e.g., RGB) can be sent directly to the monitor. Pixels of a second format (e.g., YUV) can be filtered and color space converted from the second format to the first format (e.g., YUV to RGB) in the backend, and then the converted values can be sent to the monitor. To accommodate such operation, exemplary embodiments are configured to inform the backend which pixels are of the first format (e.g., RGB) and which are of the second format (e.g., YUV).

REFERENCES:
patent: 5097257 (1992-03-01), Clough et al.
patent: 5257348 (1993-10-01), Roskowski et al.
patent: 5274753 (1993-12-01), Roskowski
patent: 5406306 (1995-04-01), Siann et al.
patent: 5506604 (1996-04-01), Nally et al.
patent: 5559954 (1996-09-01), Sakoda et al.

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