Multimedia computer system

Details Multimedia computer system Multimedia computer system

1998-06-30

2000-10-03

Peeso, Thomas R.

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

345204, 348403, G01R 1300

Patent

active

061280151

ABSTRACT:
Full-motion video data with a sub-picture and sound is recorded in a DVD-ROM drive. The DVD-ROM drive is connected to an ATAPI interface. Using a data buffer of the ATAPI interface, an MPEG stream is transferred to an MPEG2 decoder on the system board at a variable rate, and video data, audio data, and a sub-picture included in the MPEG stream are decoded by the MPEG2 decoder incorporated in the system. The decoded sub-picture is drawn in a VRAM as in normal VGA graphics. The sub-picture image drawn in the VRAM is synthesized with the video from the MPEG2 decoder by a multimedia display controller and displayed on a screen.

REFERENCES:
patent: 5195092 (1993-03-01), Wilson et al.
patent: 5463565 (1995-10-01), Cookson et al.
patent: 5583561 (1996-12-01), Baker et al.
patent: 5953485 (1999-09-01), Abecassis
patent: 5956039 (1999-09-01), Woods et al.
patent: 5956716 (1999-09-01), Kenner et al.
Reel Magic, Sigma Designs, Feb. 23, 1994, pp. 20-27.

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