1986-04-30
1988-07-12
Atkinson, Charles E.
Excavating
364200, G06F 1100
Patent
active
047575050
ABSTRACT:
A backup computer power system for powering and controlling a computer which is otherwise powered by a main power source, when the main power source fails or is disconnected, wherein an auxiliary power supply provides power to the computer and an instruction set in the computer controllably shuts down the computer after first allowing optional operator intervention prior to initiation of the programmed shutdown. If the operator chooses to intervene, he can permit completion of the current operations or conduct a manual shutdown procedure. If the operator does not intervene within a predetermined period of time, the instruction set terminates the current activity of the computer, saves the software operating environment of the computer, and shuts down the computer. Optionally, the instruction set can then shut off the auxiliary power supply to save its capacity for later use. When the main power source is restored, the auxiliary power supply signals the computer, and the instruction set initiates normal startup within the constraints of the saved operating environment.
REFERENCES:
patent: 3167685 (1965-01-01), Bade et al.
patent: 3757302 (1973-09-01), Pollitt
patent: 3801963 (1974-04-01), Chen
patent: 4412284 (1983-10-01), Kerforne et al.
patent: 4451742 (1984-05-01), Aswell
patent: 4611289 (1986-09-01), Coppola
Kiankhooy-Fard Paul
Marrington S. Paul
Rudaw Geoffrey
Zecos P.
Atkinson Charles E.
Elgar Electronics Corp.
Garmong Gregory O.
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