Video game and personal computer

Details Video game and personal computer Video game and personal computer

1985-07-19

1988-10-11

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 900

Patent

active

047776218

ABSTRACT:
A video game home computer is implemented in NMOS (n type metal oxide semiconductor) technology with plural microprocessors. Centralized bus architecture and direct memory access (DMA) techniques are employed. A video display generator provides color signal outputs to drive a commercial television receiver display. This display generator receives inputs from both microprocessors and obtains data directly from memory. A bit map of display information is kept in memory, wherein bits of information in memory image the precise screen display for each instance in time. A bit map manipulator circuit performs, under microprocessor direction, logic function manipulation of the bit map data. Access between system components is accomplished via the bus architecture on a priority queue basis. Chip count and chip area is minimized.

REFERENCES:
patent: 4204208 (1980-05-01), McCarthy
patent: 4243984 (1981-01-01), Ackley et al.
patent: 4301503 (1981-11-01), Frederiksen
patent: 4471465 (1984-09-01), Mayer et al.
patent: 4513390 (1985-04-01), Walter et al.
patent: 4571456 (1986-02-01), Paulsen et al.
patent: 4591975 (1986-05-01), Wade et al.

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