Power-supply control system of peripheral equipment of computer

Details Power-supply control system of peripheral equipment of computer Power-supply control system of peripheral equipment of computer

1993-08-11

1996-01-23

Shoop, Jr., William M.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

364273, 364492, 395750, H01H 3500

Patent

active

054867266

ABSTRACT:
The present invention discloses a power supply control system for the peripheral equipment of a computer which generates a signal for automatically cutting off the input power supplied to the peripheral equipment after a user has stop working on a computer for a predetermined period of time. Power to the peripheral equipment is then resumed when data is input to the computer system through an input. This system includes a first switching mechanism, an input-output sensing programmable array logic unit (PAL), internal-operation sensing programmable array logic unit, second switching mechanism, a counter and a controlling programmable array logic unit.

REFERENCES:
patent: 4107551 (1978-08-01), Akamatsu
patent: 4747041 (1988-05-01), Engel et al.
patent: 5239652 (1993-08-01), Seibert et al.

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