Electronic circuit and electronic device

Details Electronic circuit and electronic device Electronic circuit and electronic device

2005-12-22

2008-12-16

Du, Thuan N (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

C713S320000, C713S322000

Reexamination Certificate

active

07467307

ABSTRACT:
An electronic circuit according to the present invention has one or more circuit sections which operate according to a variable power supply voltage and a variable clock frequency. In the electronic circuit, active information related to load and/or processing time which changes in real time from a control processing section included in the circuit section is output and, based on the active information, a voltage/frequency setting section which sets values of a power supply voltage and clock frequency is provided. The electronic circuit further includes a voltage controller which controls the power supply voltage to be supplied to the circuit section based on the voltage value set by the voltage/frequency setting section and a clock frequency controller which controls the clock frequency to be supplied to the circuit section based on the frequency value set by the voltage/frequency setting section.

REFERENCES:
patent: 6415388 (2002-07-01), Browning et al.
patent: 6928559 (2005-08-01), Beard
patent: 2004/0230844 (2004-11-01), Zalesski
patent: 2005/0044429 (2005-02-01), Gaskins et al.
patent: 2005/0268189 (2005-12-01), Soltis, Jr.
patent: 5-119872 (1993-05-01), None
patent: 05-119876 (1993-05-01), None
patent: 2001-238190 (2001-08-01), None

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