Transitioning to and from a sleep state of a processor

Details Transitioning to and from a sleep state of a processor Transitioning to and from a sleep state of a processor

2011-01-11

2011-01-11

Cao, Chun (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C713S323000

Reexamination Certificate

active

07870404

ABSTRACT:
A method for reducing power utilized by a processor including determining that a processor is transitioning from a computer mode to a mode in which system clock to the processor is disabled, and reducing core voltage to the processor to a value sufficient to maintain state during the mode in which system clock is disabled.

REFERENCES:
patent: 5086501 (1992-02-01), DeLuca et al.
patent: 5142684 (1992-08-01), Perry et al.
patent: 5167024 (1992-11-01), Smith et al.
patent: 5201059 (1993-04-01), Nguyen
patent: 5204863 (1993-04-01), Saint-Joigny et al.
patent: 5218704 (1993-06-01), Watts, Jr. et al.
patent: 5222239 (1993-06-01), Rosch
patent: 5230055 (1993-07-01), Katz et al.
patent: 5239652 (1993-08-01), Seibert et al.
patent: 5422806 (1995-06-01), Chen et al.
patent: 5440520 (1995-08-01), Schutz et al.
patent: 5461266 (1995-10-01), Koreeda et al.
patent: 5502838 (1996-03-01), Kikinis
patent: 5511203 (1996-04-01), Wisor et al.
patent: 5528127 (1996-06-01), Streit
patent: 5560020 (1996-09-01), Nakatani et al.
patent: 5572719 (1996-11-01), Biesterfeldt
patent: 5592173 (1997-01-01), Lau et al.
patent: 5628001 (1997-05-01), Cepuran
patent: 5630110 (1997-05-01), Mote, Jr.
patent: 5682093 (1997-10-01), Kivela
patent: 5687114 (1997-11-01), Khan
patent: 5692204 (1997-11-01), Rawson et al.
patent: 5701783 (1997-12-01), Lin
patent: 5710929 (1998-01-01), Fung
patent: 5713030 (1998-01-01), Evoy
patent: 5717319 (1998-02-01), Jokinen
patent: 5719800 (1998-02-01), Mittal et al.
patent: 5726901 (1998-03-01), Brown
patent: 5727208 (1998-03-01), Brown
patent: 5745375 (1998-04-01), Reinhardt et al.
patent: 5752011 (1998-05-01), Thomas et al.
patent: 5754869 (1998-05-01), Holzhammer et al.
patent: 5757171 (1998-05-01), Babcock
patent: 5760636 (1998-06-01), Noble et al.
patent: 5774703 (1998-06-01), Weiss et al.
patent: 5778237 (1998-07-01), Yamamoto et al.
patent: 5787294 (1998-07-01), Evoy
patent: 5812860 (1998-09-01), Horden et al.
patent: 5815724 (1998-09-01), Mates
patent: 5825674 (1998-10-01), Jackson
patent: 5832205 (1998-11-01), Kelly et al.
patent: 5832284 (1998-11-01), Michail et al.
patent: 5848281 (1998-12-01), Smalley et al.
patent: 5852737 (1998-12-01), Bikowsky
patent: 5884049 (1999-03-01), Atkinson
patent: 5894577 (1999-04-01), MacDonald et al.
patent: 5913067 (1999-06-01), Klein
patent: 5914996 (1999-06-01), Huang
patent: 5919262 (1999-07-01), Kikinis et al.
patent: 5923545 (1999-07-01), Nguyen
patent: 5933649 (1999-08-01), Lim et al.
patent: 5940785 (1999-08-01), Georgiou et al.
patent: 5940786 (1999-08-01), Steeby
patent: 5974557 (1999-10-01), Thomas et al.
patent: 5996083 (1999-11-01), Gupta et al.
patent: 5996084 (1999-11-01), Watts
patent: 6021500 (2000-02-01), Wang et al.
patent: 6047248 (2000-04-01), Georgiou et al.
patent: 6078319 (2000-06-01), Bril et al.
patent: 6094367 (2000-07-01), Hsu et al.
patent: 6111806 (2000-08-01), Shirley et al.
patent: 6112164 (2000-08-01), Hobson
patent: 6118306 (2000-09-01), Orton et al.
patent: 6119241 (2000-09-01), Michail et al.
patent: 6141762 (2000-10-01), Nicol et al.
patent: 6157092 (2000-12-01), Hofmann
patent: 6202104 (2001-03-01), Ober
patent: 6208127 (2001-03-01), Doluca
patent: 6216235 (2001-04-01), Thomas et al.
patent: 6272642 (2001-08-01), Pole et al.
patent: 6279048 (2001-08-01), Fadavi-Ardekani et al.
patent: 6304824 (2001-10-01), Bausch et al.
patent: 6311287 (2001-10-01), Dischler et al.
patent: 6314522 (2001-11-01), Chu et al.
patent: 6345363 (2002-02-01), Levy-Kendler
patent: 6347379 (2002-02-01), Dai et al.
patent: 6378081 (2002-04-01), Hammond
patent: 6388432 (2002-05-01), Uchida
patent: 6415388 (2002-07-01), Browning et al.
patent: 6425086 (2002-07-01), Clark et al.
patent: 6427211 (2002-07-01), Watts, Jr.
patent: 6442746 (2002-08-01), James et al.
patent: 6457082 (2002-09-01), Zhang et al.
patent: 6457135 (2002-09-01), Cooper
patent: 6477654 (2002-11-01), Dean et al.
patent: 6484265 (2002-11-01), Borkar et al.
patent: 6487668 (2002-11-01), Thomas et al.
patent: 6510400 (2003-01-01), Moriyama
patent: 6510525 (2003-01-01), Nookala et al.
patent: 6513124 (2003-01-01), Furuichi et al.
patent: 6519706 (2003-02-01), Ogoro
patent: 6574739 (2003-06-01), Kung et al.
patent: 6675304 (2004-01-01), Pole et al.
patent: 6704880 (2004-03-01), Dai et al.
patent: 7260731 (2007-08-01), Read et al.
patent: 2002/0026597 (2002-02-01), Dai et al.
patent: 2002/0073348 (2002-06-01), Tani
patent: 2002/0083356 (2002-06-01), Dai
patent: 2002/0087896 (2002-07-01), Cline et al.
patent: 2002/0138778 (2002-09-01), Cole et al.
patent: 2003/0065960 (2003-04-01), Rusu et al.
patent: 2003/0074591 (2003-04-01), McClendon et al.
patent: 0381021 (1990-08-01), None
patent: 0474963 (1992-03-01), None
patent: 0501655 (1992-09-01), None
patent: 632360 (1995-01-01), None
patent: 978781 (2000-02-01), None
patent: 409185589 (1997-07-01), None
patent: WO0127728 (2001-04-01), None
Madhav P. Desai et al., “Sizing of Clock Distribution Networks for High Performance CPU Chips” Digital Equipment Corporation 1996, pp. 389-394.
“RE: AX64PRO or AK72?”; Newsreader, Jun. 15, 2000, pp. 1-2.
AMD Athlon; “Processor Module” Datasheet, Jun. 2000; pp. 1-64.
Intel, “Pentium III Processor for the SC242 at 450 Mhz to 866 MHZ and 1.0 GHZ”, Datasheet, Mar. 2000, pp. 1-30.
“High-Speed Step-Down Controller With Synchronous Rectification for CPU Power”, Maxim, pp. 1-16.
“High-Speed, Digitally Adjusted Step-Down Controllers for Notebook CPUS”, Maxim, Jul. 2000, pp. 1-28.
“High-Speed Digitally Adjusted Step-Down Controllers for Notebook CPUS”; MAX1710/MAX1711; Maxim Manual;p. 11 and p. 21.
“Operation U (Refer to Functional Diagram)” LTC1736; Linear Technology Manual p. 9.
Weiser et al; “Scheduling for Reduced CPU Energy”; Xerox PARC, Operating Systems Design and Implementation; USENIX Assoc. Nov. 1994.
Govil; “Comparing Algorithms for Dynamic Speedsetting of a Low Power CPU”; International Computer Science Institute; Berkeley, CA; Apr. 1995.
“VT82C686A ‘Super South’ South Bridge”; Feb. 25, 2000; Rev. 1.54, VIA Technologies, Inc.
AMD Athlon-Processor Model 4 Data Sheet, No. 23792, Rev. K, Nov. 2001. Advanced Micro Devices, Inc.
“Manual for Kinetiz 7T”, 2000; QDI Computer, Inc. (USA).
INTEL Corporation; “INTEL 82801 CAM I/O Controller Hub (ICH3-M)” Datasheet; Jul. 2001.

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