System for reducing power consumption in computers

Details System for reducing power consumption in computers System for reducing power consumption in computers

1996-06-19

1997-04-01

Sheikh, Ayaz R.

G06F 132, G06F 1130

Patent

active

056175728

ABSTRACT:
A system for reducing the amount of power consumed by a battery operated computer device is disclosed. A microcontroller continuously monitors the activity of at least one I/O device and sets an activity state variable (ASV) associated with the I/O device accordingly. Upon each the expiration of a preselected time period, the microcontroller examines the state of the ASV to determine whether the I/O device was active during the expired time period. If so, the I/O device is caused to operate in a full power mode; otherwise, the I/O device is caused to operate in a reduced power consumption mode. In one embodiment, the I/O device is capable of operating in more than one reduced power consumption mode, in which case, responsive to a determination that the I/O device was not active during the expired time period, the I/O device is caused to operate in the next lowest power consumption mode. In an alternative embodiment, the frequency with which timer interrupts are generated is automatically adjusted after the expiration of each time period.

REFERENCES:
patent: 4260947 (1981-04-01), Massey
patent: 5201059 (1993-04-01), Nguyen
patent: 5345564 (1994-09-01), Jensen et al.
patent: 5349688 (1994-09-01), Nguyen
patent: 5355501 (1994-10-01), Gross et al.
patent: 5392437 (1995-02-01), Matter et al.
patent: 5396635 (1995-03-01), Fung
patent: 5404543 (1995-04-01), Fancher et al.
patent: 5404546 (1995-04-01), Stewart
patent: 5408639 (1995-04-01), Gulick et al.
patent: 5408668 (1995-04-01), Tornai
patent: 5486726 (1996-01-01), Kim et al.

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