Conserving power of a system on a chip using speed sensing

Details Conserving power of a system on a chip using speed sensing Conserving power of a system on a chip using speed sensing

2006-04-25

2006-04-25

Treat, William M. (Department: 2183)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C702S107000

Reexamination Certificate

active

07036029

ABSTRACT:
A method for conserving power begins by measuring processing speed of at least a portion of an integrated circuit (IC) to produce measured processing speed. The portion of the IC may be a test circuit, a critical path of the IC, and/or a replica of the critical path of the IC. The processing continues by comparing the measured processing speed with a critical processing speed for the at least a portion of the integrated circuit. The processing then continues by adjusting supply voltage to the integrated circuit to reduce power consumption of the integrated circuit when the measured processing speed compares favorably to the critical processing speed.

REFERENCES:
patent: 6014749 (2000-01-01), Gloor et al.
patent: 6601177 (2003-07-01), Fujigaya et al.
patent: 6895520 (2005-05-01), Altmejd et al.

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