Power management for an integrated graphics device

Details Power management for an integrated graphics device Power management for an integrated graphics device

2006-12-12

2006-12-12

Lee, Thomas (Department: 2115)

Electrical computers and digital processing systems: support

Computer power control

Power conservation

C345S519000, C713S501000

Reexamination Certificate

active

07149909

ABSTRACT:
In one embodiment of the invention, an integrated device is described that employs a mechanism to control power consumption of a graphics memory controller hub (GMCH) through both voltage and frequency adjustment of clock signal received from a clock generator. The GMCH comprises a graphics core and a circuit to alter operational behavior, such as the frequency of a render clock signal supplied to the graphics core. The circuit is adapted to monitor idleness of the graphics core and reduce a frequency level of the render clock signal if the idleness exceeds a determined percentage of time.

REFERENCES:
patent: 4238784 (1980-12-01), Keen et al.
patent: 4825337 (1989-04-01), Karpman
patent: 4841440 (1989-06-01), Yonezu et al.
patent: 5021679 (1991-06-01), Fairbanks et al.
patent: 5134398 (1992-07-01), Yasutake et al.
patent: 5153535 (1992-10-01), Fairbanks et al.
patent: 5254992 (1993-10-01), Keen et al.
patent: 5307003 (1994-04-01), Fairbanks et al.
patent: 5369771 (1994-11-01), Gettel
patent: 5381043 (1995-01-01), Kohiyama et al.
patent: 5478221 (1995-12-01), Loya
patent: 5537343 (1996-07-01), Kikinis et al.
patent: 5550710 (1996-08-01), Rahamim et al.
patent: 5598537 (1997-01-01), Swanstrom et al.
patent: 5598539 (1997-01-01), Gephardt et al.
patent: 5603036 (1997-02-01), Wells et al.
patent: 5625829 (1997-04-01), Gephardt et al.
patent: 5627412 (1997-05-01), Beard
patent: 5648762 (1997-07-01), Ichimura et al.
patent: 5664118 (1997-09-01), Nishigaki et al.
patent: 5696977 (1997-12-01), Wells et al.
patent: 5721837 (1998-02-01), Kikinis et al.
patent: 5745041 (1998-04-01), Moss
patent: 5745375 (1998-04-01), Reinhardt et al.
patent: 5752011 (1998-05-01), Thomas et al.
patent: 5760636 (1998-06-01), Noble et al.
patent: 5781783 (1998-07-01), Gunther et al.
patent: 5798951 (1998-08-01), Cho et al.
patent: 5884049 (1999-03-01), Atkinson
patent: 5930110 (1999-07-01), Nishigaki et al.
patent: 5974556 (1999-10-01), Jackson et al.
patent: 5974557 (1999-10-01), Thomas et al.
patent: 5987614 (1999-11-01), Mitchell et al.
patent: 6018803 (2000-01-01), Kardach
patent: 6125450 (2000-09-01), Kardach
patent: 6216235 (2001-04-01), Thomas et al.
patent: 6275945 (2001-08-01), Tsuji et al.
patent: 6292201 (2001-09-01), Chen et al.
patent: 6397343 (2002-05-01), Williams et al.
patent: 6407595 (2002-06-01), Huang et al.
patent: 6460125 (2002-10-01), Lee et al.
patent: 6480198 (2002-11-01), Kang
patent: 6487668 (2002-11-01), Thomas et al.
patent: 6601179 (2003-07-01), Jackson et al.
patent: 6715089 (2004-03-01), Zdravkovic
patent: 6848058 (2005-01-01), Sinclair et al.
patent: 0 474 963 (1992-03-01), None
patent: 0 539 884 (1993-05-01), None
patent: 0 566 395 (1993-10-01), None
patent: 0 632 360 (1995-01-01), None
patent: WO 0173529 (2001-04-01), None
patent: WO 0173534 (2001-04-01), None
ATI Technologies, “POWERPLAY White Paper”, Printed Aug. 2001.
Charles P. Schultz “Dynamic Clock Control For Microprocessor System Energy Mangement”, Motorola Inc., Technical Developments, vol. 14, Dec. 1991, pp. 53-54, Schaumburg, IL.
“Dynamic Power Managment By Clock Speed Variation”, IBM Technical Disclosure Bulletin, vol. 32, No. 8B, Jan. 1990, pp. 373, Armonk, NY.
IPEA/US, Written Opinion for International Application No. PCT/US03/10428, 7 pages, Apr. 29, 2005.

Affiliated with

Also associated with

Rating

Power management for an integrated graphics device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power management for an integrated graphics device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power management for an integrated graphics device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3719090