Apparatus for reducing computer system power consumption

Details Apparatus for reducing computer system power consumption Apparatus for reducing computer system power consumption

1988-10-14

1990-12-25

Lall, Parshotam S.

Boots, shoes, and leggings

364141, 364200, 3642735, 307 31, 307 38, G01R 1900, H02J 314

Patent

active

049808362

ABSTRACT:
A battery powered computer system monitors the address bus to determine when selected peripheral devices have not been accessed for a preset amount of time. When the preset amount of time has passed the system powers itself down and stops the system clock, placing it in a standby mode. The system is awakened by depressing a standby switch, unless there is insufficient energy in the batteries, under which circumstances an AC power source must be connected before the system can be awakened.

REFERENCES:
patent: 4316247 (1982-02-01), Iwamoto
patent: 4510398 (1985-04-01), Culp et al.
patent: 4538231 (1985-08-01), Abe et al.
patent: 4568934 (1986-02-01), Allgood
patent: 4751653 (1988-06-01), Junk et al.
Zenith Data Systems Corp., Z-180 PC Series Technical Reference Manual, 1987, pp. 14-2 to 14-3.
IBM Corp., PC Convertible Technical Reference, vol. 1, First Edition, Feb. 1986, pp. 2-11, 4-7 to 4-10, 4-37 to 4-41, D-3 to D-4.

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