Non-volatile reprogrammable ram cartridge

Details Non-volatile reprogrammable ram cartridge Non-volatile reprogrammable ram cartridge

1983-06-27

1986-11-04

Picard, Leo P.

Amusement devices: games

Games accessories

All video game accessories

273DIG28, 365233, A63F 922

Patent

active

046207074

ABSTRACT:
The reprogrammable RAM cartridge of the present invention is adapted for use as a reprogrammable video game. The cartridge uses an optoisolator connected in a circuit between the shield and ground lines to detect the presence of a signal indicating that the cartridge is in a programmer, rather than in a video game unit. While in the programmer, the program stored in the RAM can be changed. However, when removed from the programmer, the cartridge acts like a standard video game cartridge.

REFERENCES:
patent: 3859638 (1975-01-01), Hume, Jr.
patent: 4145760 (1979-03-01), Ward et al.
patent: 4156928 (1979-05-01), Inose et al.
patent: 4159541 (1979-06-01), Ward et al.
patent: 4247106 (1981-01-01), Jeffers et al.
patent: 4388706 (1983-06-01), Butler
patent: 4399524 (1983-08-01), Muguruma et al.
patent: 4403309 (1983-09-01), Nakano
patent: 4432067 (1984-02-01), Nielsen
Stephen W. Fields, "E-PROM Cartridges Change the Action in Games People Play", 5/31/83, Electronics Magazine, May/83.

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