High resolution video graphics system

Details High resolution video graphics system High resolution video graphics system

1987-09-21

1989-03-07

Caldwell, Sr., John W.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340703, 340798, G09G 100

Patent

active

048110078

ABSTRACT:
A high resolution video graphics system for use with a processor and characterized by improved memory expandability particularly in connection with color display. The high resolution video graphics system includes a video memory which is preferably comprised of a plurality of video memory planes and video counter means for providing display timing. There are basically four buses that are used with the system including a control bus, a read bus, a write bus, and an address bus. A multiplexer means is provided for receiving either video counter addresses or direct addresses from the processor. There is associated with the video memory means for converting to serial output data which the preferred embodiment includes a series of shift registers corresponding to the number of separate memory planes employed. In the preferred embodiment the system has three memory planes, each of 16K by 16 capacity. The shift register output is coupled to a high speed static palette RAM with the shift register outputs being the addresses thereto. The data outputs of the palette RAM couple to guns on a color monitor or to the back plane in connection with black and white graphics.

REFERENCES:
patent: 3967246 (1976-06-01), House
patent: 4016544 (1977-05-01), Morita et al.
patent: 4150364 (1979-04-01), Baltzer
patent: 4342029 (1982-07-01), Hofmanis et al.
patent: 4418343 (1983-11-01), Ryan et al.
patent: 4418344 (1983-11-01), Brown
patent: 4439759 (1984-03-01), Fleming et al.
patent: 4498081 (1985-02-01), Fukushima et al.
patent: 4503429 (1985-03-01), Schreiber
patent: 4509043 (1985-04-01), Mossaides
patent: 4511965 (1985-04-01), Rajaram
patent: 4554538 (1985-11-01), Bieneman

Affiliated with

Also associated with

Rating

High resolution video graphics system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High resolution video graphics system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High resolution video graphics system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1671629