Device for maintaining game state audit trail upon instantaneous

Details Device for maintaining game state audit trail upon instantaneous Device for maintaining game state audit trail upon instantaneous

1985-10-21

1990-08-14

Coven, Edward M.

Amusement devices: games

Chance devices

Electric or magnetic

273DIG28, 273 1E, 273 85G, A63B 7100, A63F 706

Patent

active

049481380

ABSTRACT:
A look ahead state saving device for maintaining an audit trail of a plurality of discrete, sequential operating states in an electronic machine, such as a gaming machine. Each such state include accompanying operational data. A nonvolatile solid state memory maintains the audio trail. Game operation is initially interrupted and, thereafter, current state data is frozen in the memory when power source unreliability is detected and reliable machine operation cannot be maintained. The device retrieves the most recent game states and operational data from the memory upon restoration of power source reliability. Memory nonvolatility is maintained by a back-up battery source that includes a battery low detection circuit for interrupting machine operation in the event of battery failure, and that also includes a battery charging circuit.

REFERENCES:
patent: 4251883 (1981-02-01), Grants et al.
patent: 4342454 (1982-08-01), Baer et al.
patent: 4412284 (1983-10-01), Kerforne et al.

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