Graphics system including a plurality of heads

Details Graphics system including a plurality of heads Graphics system including a plurality of heads

2006-08-22

2006-08-22

Tung, Kee M. (Department: 2628)

Computer graphics processing and selective visual display system

Plural display systems

Diverse systems

C345S005000, C345S506000, C345S520000, C710S014000

Reexamination Certificate

active

07095386

ABSTRACT:
A graphics display system is disclosed. The display system comprises a plurality of heads. Each of the plurality of heads includes a VGA controller and each of the plurality of heads is adapted for a display. The graphics display system also includes a host coupled to the plurality of heads, wherein all the standard VGA settings for each of the plurality of the heads could be programmed by a single command by the host. Each of the heads are adapted for a display. A system and method for providing a broadcast mode VGA feature is disclosed. A method and system in accordance with the present invention includes one VGA controller per head. In so doing, in a broadcast mode a write transaction from the bus is broadcast or written to both heads. Also, in a broadcast mode, the VGA read data from the bus always comes from one of the heads. The output timing registers specific to a non-CRT output are not broadcast. To provide broadcast VGA to a CRT and/or a flat panel, software sets up the timing in extended registers and enables the display devices. The VGA application can then provide mode settings via the appropriate write VGA registers and the correct display will be on each head.

REFERENCES:
patent: 5138305 (1992-08-01), Tomiyasu
patent: 5414831 (1995-05-01), Wilson et al.
patent: 5488385 (1996-01-01), Singhal et al.
patent: 5500654 (1996-03-01), Fujimoto
patent: 5694141 (1997-12-01), Chee
patent: 5786825 (1998-07-01), Cain et al.
patent: 5841418 (1998-11-01), Bril et al.
patent: 6023281 (2000-02-01), Grigor et al.
patent: 6215459 (2001-04-01), Reddy et al.
patent: 6333750 (2001-12-01), Odryna et al.
patent: 6424320 (2002-07-01), Callway
patent: 6628243 (2003-09-01), Lyons et al.

Affiliated with

Also associated with

Rating

Graphics system including a plurality of heads does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Graphics system including a plurality of heads, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Graphics system including a plurality of heads will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3703247