Video display circuit for games, or the like

Details Video display circuit for games, or the like Video display circuit for games, or the like

1977-11-17

1979-09-25

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

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

2731012, 273DIG28, 340750, 340706, 340800, G06K 1520

Patent

active

041692624

ABSTRACT:
A circuit realizable on a single substrate, for interfacing between a digital processor and a raster scanned, video display particularly suitable for games, or the like. In the presently preferred embodiment, up to thirty-two objects may be simultaneously displayed. Content addressable memories (CAMs) which compare beam location with desired object location are employed to locate objects on the display. Fewer than thirty-two CAMs are employed to locate thirty-two objects with the circuit's "grouped major system". The display circuit includes another subsystem ("minor system") for displaying patterns with a minimum of control by the processor.

REFERENCES:
patent: 3614767 (1971-10-01), Carrell
patent: 3778810 (1973-12-01), Hayashi
patent: 3827041 (1974-07-01), Cook
patent: 3854130 (1974-12-01), Ligocki
patent: 4011556 (1977-03-01), Tochitani et al.
patent: 4068225 (1978-01-01), Lee
patent: 4116444 (1978-09-01), Mayer et al.
patent: 4117469 (1978-09-01), Levine

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