Computer graphics processing and selective visual display system – Display driving control circuitry – Physically integral with display elements
Patent
1997-01-15
1998-08-04
Brier, Jeffery
Computer graphics processing and selective visual display system
Display driving control circuitry
Physically integral with display elements
345154, G09G 502
Patent
active
057901104
ABSTRACT:
A system and method for generating composite video signals in a computer. Digital pixel data may be processed by software to form component video pixel data, which may include luminance and chrominance components. A chrominance look-up table is provided in a display memory and is used for modulation of the chrominance components. The modulated components are then combined to form digital composite video pixel data which may be stored in a frame buffer in the display memory. Video control information is precalculated and stored in the display memory in advance. The digital composite video pixel data and video control information are then recovered from the display memory to produce a formatted stream of video data. The architecture of this system greatly reduces hardware complexity and bandwidth requirements. In addition, the process may be controlled by a media stream controller which is also adapted for audio and graphics processing. This allows the display memory and various other components to be shared by multiple media subsystems.
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Baker David C.
Mulligan Daniel P.
Schell Eric J.
Brier Jeffery
Brooktree Corporation
Cray William C.
Oh Susie H.
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