Electrical computers and digital processing systems: support – Computer power control – Power conservation
Reexamination Certificate
2006-02-07
2006-02-07
Browne, Lynne H. (Department: 2116)
Electrical computers and digital processing systems: support
Computer power control
Power conservation
C713S320000, C713S300000
Reexamination Certificate
active
06996730
ABSTRACT:
A method and apparatus for adjusting the clock frequency and voltage supplied to an integrated circuit is provided. A request signal is sent to the clock, and in response, the clock lowers the clock frequency supplied to the integrated circuit. A frequency detection circuit monitors the clock signal and causes a voltage regulator to reduce the voltage supplied to the integrated circuit in response to the reduced clock frequency. Similarly, a request signal is sent to the clock, and in response, the clock raises the clock frequency supplied to the integrated circuit. The frequency detection circuit monitors the clock signal and causes a voltage regulator to raise the voltage supplied to the integrated circuit in response to the increased clock frequency. The slew rate of the clock is controlled so that at least a minimum required voltage for each operating frequency is provided while the clock frequency is being changed. In this manner, reliable operation of the processor is assured while the clock speed and operating voltage are being changed.
REFERENCES:
patent: 3922526 (1975-11-01), Cochran
patent: 4700124 (1987-10-01), Anderson
patent: 5021679 (1991-06-01), Fairbanks et al.
patent: 5197033 (1993-03-01), Watanabe et al.
patent: 5268871 (1993-12-01), Dhong et al.
patent: 5307003 (1994-04-01), Fairbanks et al.
patent: 5440520 (1995-08-01), Schutz et al.
patent: 5451892 (1995-09-01), Bailey
patent: 5610869 (1997-03-01), Yoo et al.
patent: 5727208 (1998-03-01), Brown
patent: 5745375 (1998-04-01), Reinhardt et al.
patent: 5760636 (1998-06-01), Noble et al.
patent: 5774704 (1998-06-01), Williams
patent: 5812860 (1998-09-01), Horden et al.
patent: 5956289 (1999-09-01), Norman et al.
patent: 6425086 (2002-07-01), Clark et al.
patent: 6449575 (2002-09-01), Bausch et al.
patent: 2002/0087896 (2002-07-01), Dai et al.
patent: WO 01/35200 (2001-05-01), None
patent: WO 02/17052 (2002-02-01), None
patent: WO 02/29535 (2002-04-01), None
Brady III W. James
Browne Lynne H.
Marshall, Jr. Robert D.
Stoynov Stefan
Telecky , Jr. Frederick J.
LandOfFree
Adjusting voltage supplied to a processor in response to... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adjusting voltage supplied to a processor in response to..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjusting voltage supplied to a processor in response to... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3682621