AU2001293141A1 - Method and apparatus to enhance processor power management - Google Patents

Method and apparatus to enhance processor power management

Info

Publication number
AU2001293141A1
AU2001293141A1 AU2001293141A AU9314101A AU2001293141A1 AU 2001293141 A1 AU2001293141 A1 AU 2001293141A1 AU 2001293141 A AU2001293141 A AU 2001293141A AU 9314101 A AU9314101 A AU 9314101A AU 2001293141 A1 AU2001293141 A1 AU 2001293141A1
Authority
AU
Australia
Prior art keywords
processor
power management
processor power
transitioning
supply voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2001293141A
Inventor
Xia Dai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intel Corp
Original Assignee
Intel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intel Corp filed Critical Intel Corp
Publication of AU2001293141A1 publication Critical patent/AU2001293141A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/324—Power saving characterised by the action undertaken by lowering clock frequency
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3296—Power saving characterised by the action undertaken by lowering the supply or operating voltage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Sources (AREA)
  • Saccharide Compounds (AREA)
  • Microcomputers (AREA)

Abstract

A method and an apparatus to dynamically transition a processor between two performance states, high performance and low power. Predetermined core clock frequency and supply voltage levels of the processor define each performance state. Transitioning the supply voltage while the processor is in the active mode and transitioning the frequency while the processor is in the sleep mode significantly reduce the processor latency.
AU2001293141A 2000-09-30 2001-09-27 Method and apparatus to enhance processor power management Abandoned AU2001293141A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/677,263 2000-09-30
US09/677,263 US6941480B1 (en) 2000-09-30 2000-09-30 Method and apparatus for transitioning a processor state from a first performance mode to a second performance mode
PCT/US2001/030254 WO2002029535A2 (en) 2000-09-30 2001-09-27 Method and apparatus to enhance processor power management

Publications (1)

Publication Number Publication Date
AU2001293141A1 true AU2001293141A1 (en) 2002-04-15

Family

ID=24717982

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001293141A Abandoned AU2001293141A1 (en) 2000-09-30 2001-09-27 Method and apparatus to enhance processor power management

Country Status (8)

Country Link
US (2) US6941480B1 (en)
EP (1) EP1325402B1 (en)
KR (1) KR100518376B1 (en)
AT (1) ATE315803T1 (en)
AU (1) AU2001293141A1 (en)
DE (1) DE60116650T2 (en)
TW (1) TW539939B (en)
WO (1) WO2002029535A2 (en)

Families Citing this family (111)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7100061B2 (en) 2000-01-18 2006-08-29 Transmeta Corporation Adaptive power control
US6968469B1 (en) 2000-06-16 2005-11-22 Transmeta Corporation System and method for preserving internal processor context when the processor is powered down and restoring the internal processor context when processor is restored
US7085944B1 (en) 2000-09-30 2006-08-01 Intel Corporation Power management by transmitting single multiplexed signal to multiple system components to change settings of internal performance registers in response to change in power source
US6941480B1 (en) * 2000-09-30 2005-09-06 Intel Corporation Method and apparatus for transitioning a processor state from a first performance mode to a second performance mode
US7260731B1 (en) 2000-10-23 2007-08-21 Transmeta Corporation Saving power when in or transitioning to a static mode of a processor
DE60228044D1 (en) * 2002-01-18 2008-09-18 Hewlett Packard Co Distributed computer system and method
EP1329798A1 (en) * 2002-01-18 2003-07-23 Hewlett-Packard Company, A Delaware Corporation Power management method and apparatus
US7180322B1 (en) 2002-04-16 2007-02-20 Transmeta Corporation Closed loop feedback control of integrated circuits
US7336090B1 (en) 2002-04-16 2008-02-26 Transmeta Corporation Frequency specific closed loop feedback control of integrated circuits
US7941675B2 (en) 2002-12-31 2011-05-10 Burr James B Adaptive power control
US7076672B2 (en) * 2002-10-14 2006-07-11 Intel Corporation Method and apparatus for performance effective power throttling
US7013406B2 (en) 2002-10-14 2006-03-14 Intel Corporation Method and apparatus to dynamically change an operating frequency and operating voltage of an electronic device
TW575803B (en) * 2002-10-17 2004-02-11 Uniwill Comp Corp The method of managing portable computer power cord
US7882369B1 (en) 2002-11-14 2011-02-01 Nvidia Corporation Processor performance adjustment system and method
US7886164B1 (en) 2002-11-14 2011-02-08 Nvidia Corporation Processor temperature adjustment system and method
US7849332B1 (en) 2002-11-14 2010-12-07 Nvidia Corporation Processor voltage adjustment system and method
US6996730B2 (en) * 2002-11-25 2006-02-07 Texas Instruments Incorporated Adjusting voltage supplied to a processor in response to clock frequency
US7146822B2 (en) * 2002-12-30 2006-12-12 Intel Corporation Centrifugal liquid pump with perimeter magnetic drive
US7444524B2 (en) * 2002-12-30 2008-10-28 Intel Corporation Dynamic voltage transitions
US7205758B1 (en) 2004-02-02 2007-04-17 Transmeta Corporation Systems and methods for adjusting threshold voltage
US7786756B1 (en) 2002-12-31 2010-08-31 Vjekoslav Svilan Method and system for latchup suppression
US7642835B1 (en) * 2003-11-12 2010-01-05 Robert Fu System for substrate potential regulation during power-up in integrated circuits
US7949864B1 (en) 2002-12-31 2011-05-24 Vjekoslav Svilan Balanced adaptive body bias control
US7228242B2 (en) * 2002-12-31 2007-06-05 Transmeta Corporation Adaptive power control based on pre package characterization of integrated circuits
US7953990B2 (en) * 2002-12-31 2011-05-31 Stewart Thomas E Adaptive power control based on post package characterization of integrated circuits
KR100498487B1 (en) * 2003-02-08 2005-07-01 삼성전자주식회사 Processor having a high speed control circuit and a low-speed and low-power control circuit
JP4133459B2 (en) 2003-03-06 2008-08-13 シャープ株式会社 Concentrator, network compatible device, communication system
US7299370B2 (en) * 2003-06-10 2007-11-20 Intel Corporation Method and apparatus for improved reliability and reduced power in a processor by automatic voltage control during processor idle states
US7134031B2 (en) * 2003-08-04 2006-11-07 Arm Limited Performance control within a multi-processor system
US7392099B2 (en) * 2003-12-12 2008-06-24 Hewlett-Packard Development Company, L.P. System and method for power management when an operating voltage is between two thresholds
US7692477B1 (en) 2003-12-23 2010-04-06 Tien-Min Chen Precise control component for a substrate potential regulation circuit
US7012461B1 (en) 2003-12-23 2006-03-14 Transmeta Corporation Stabilization component for a substrate potential regulation circuit
US7129771B1 (en) 2003-12-23 2006-10-31 Transmeta Corporation Servo loop for well bias voltage source
US7649402B1 (en) 2003-12-23 2010-01-19 Tien-Min Chen Feedback-controlled body-bias voltage source
US7816742B1 (en) 2004-09-30 2010-10-19 Koniaris Kleanthes G Systems and methods for integrated circuits comprising multiple body biasing domains
US7859062B1 (en) 2004-02-02 2010-12-28 Koniaris Kleanthes G Systems and methods for integrated circuits comprising multiple body biasing domains
JP4316399B2 (en) * 2004-02-18 2009-08-19 インターナショナル・ビジネス・マシーンズ・コーポレーション Program, recording medium, control method, and information processing apparatus
US7698575B2 (en) 2004-03-30 2010-04-13 Intel Corporation Managing power consumption by requesting an adjustment to an operating point of a processor
KR100716730B1 (en) * 2004-06-11 2007-05-14 삼성전자주식회사 Method for decreasing the power consumption in cpu idle-state and mobile device using the same
US7562233B1 (en) 2004-06-22 2009-07-14 Transmeta Corporation Adaptive control of operating and body bias voltages
US7774625B1 (en) 2004-06-22 2010-08-10 Eric Chien-Li Sheng Adaptive voltage control by accessing information stored within and specific to a microprocessor
US7343502B2 (en) 2004-07-26 2008-03-11 Intel Corporation Method and apparatus for dynamic DLL powerdown and memory self-refresh
US7451333B2 (en) * 2004-09-03 2008-11-11 Intel Corporation Coordinating idle state transitions in multi-core processors
US7966511B2 (en) * 2004-07-27 2011-06-21 Intel Corporation Power management coordination in multi-core processors
US7664970B2 (en) 2005-12-30 2010-02-16 Intel Corporation Method and apparatus for a zero voltage processor sleep state
US7739531B1 (en) 2005-03-04 2010-06-15 Nvidia Corporation Dynamic voltage scaling
US20070094435A1 (en) * 2005-10-25 2007-04-26 Fry Walter G Computer docking system and method
US7350010B2 (en) * 2005-10-28 2008-03-25 Hewlett-Packard Development Company, L.P. Method and an apparatus for switching root cells for a computer system without requiring the computer system to be re-booted
KR100806284B1 (en) * 2005-12-08 2008-02-22 한국전자통신연구원 High Energy Efficiency Processor Using Dynamic Voltage Scaling
TW200825705A (en) 2006-04-26 2008-06-16 Nxp Bv Method and system for power-state transition controllers
US7747881B2 (en) * 2006-08-14 2010-06-29 Globalfoundries Inc. System and method for limiting processor performance
US7536570B2 (en) * 2006-10-02 2009-05-19 Silicon Laboratories Inc. Microcontroller unit (MCU) with suspend mode
US7793125B2 (en) * 2007-01-10 2010-09-07 International Business Machines Corporation Method and apparatus for power throttling a processor in an information handling system
US9134782B2 (en) 2007-05-07 2015-09-15 Nvidia Corporation Maintaining optimum voltage supply to match performance of an integrated circuit
US8065537B2 (en) * 2007-06-12 2011-11-22 Hewlett-Packard Development Company, L.P. Adjusting cap settings of electronic devices according to measured workloads
US7895421B2 (en) 2007-07-12 2011-02-22 Globalfoundries Inc. Mechanism for using performance counters to identify reasons and delay times for instructions that are stalled during retirement
KR101429674B1 (en) * 2007-09-11 2014-08-13 삼성전자주식회사 Apparatus and method for reducing power consumption in system on chip
US8166326B2 (en) * 2007-11-08 2012-04-24 International Business Machines Corporation Managing power consumption in a computer
US20090132842A1 (en) * 2007-11-15 2009-05-21 International Business Machines Corporation Managing Computer Power Consumption In A Computer Equipment Rack
US8041521B2 (en) * 2007-11-28 2011-10-18 International Business Machines Corporation Estimating power consumption of computing components configured in a computing system
US8370663B2 (en) 2008-02-11 2013-02-05 Nvidia Corporation Power management with dynamic frequency adjustments
US8078901B1 (en) 2008-06-16 2011-12-13 Western Digital Technologies, Inc. Method for increasing a processor operating frequency when other subsystem demands are low
US8103884B2 (en) * 2008-06-25 2012-01-24 International Business Machines Corporation Managing power consumption of a computer
US8307220B2 (en) 2008-06-25 2012-11-06 International Business Machines Corporation Managing power consumption of a computer
US8255010B2 (en) * 2008-09-17 2012-08-28 Qualcomm Incorporated Methods and systems for state-driven power savings for WiMAX
US8041976B2 (en) * 2008-10-01 2011-10-18 International Business Machines Corporation Power management for clusters of computers
US8514215B2 (en) 2008-11-12 2013-08-20 International Business Machines Corporation Dynamically managing power consumption of a computer with graphics adapter configurations
US9082419B1 (en) 2009-06-08 2015-07-14 Western Digitial Technologies, Inc. Disk drive configuring power mode of disk drive relative to servo gate
US8239697B2 (en) * 2009-10-30 2012-08-07 Dell Products L.P. Processor performance state control system
US20110145612A1 (en) 2009-12-16 2011-06-16 International Business Machines Corporation Method and System to Determine and Optimize Energy Consumption of Computer Systems
US9256265B2 (en) 2009-12-30 2016-02-09 Nvidia Corporation Method and system for artificially and dynamically limiting the framerate of a graphics processing unit
US9830889B2 (en) 2009-12-31 2017-11-28 Nvidia Corporation Methods and system for artifically and dynamically limiting the display resolution of an application
US8352759B2 (en) 2010-01-11 2013-01-08 Qualcomm Incorporated System and method of monitoring a central processing unit in real time
US8607083B2 (en) * 2010-04-01 2013-12-10 Intel Corporation Method and apparatus for interrupt power management
US8489906B2 (en) 2010-05-25 2013-07-16 Freescale Semiconductor, Inc. Data processor having multiple low power modes
US8839006B2 (en) 2010-05-28 2014-09-16 Nvidia Corporation Power consumption reduction systems and methods
US8732495B2 (en) 2010-08-31 2014-05-20 Integrated Device Technology, Inc. Systems, apparatuses and methods for dynamic voltage and frequency control of components used in a computer system
WO2012030329A1 (en) * 2010-08-31 2012-03-08 Integrated Device Technology, Inc. Systems, apparatuses and methods for dynamic voltage and frequency control of components used in a computer system
KR20120030779A (en) * 2010-09-20 2012-03-29 삼성전자주식회사 Method for controlling operating mode of storage device, storage device, computer system and storage media applying the same
US8710916B2 (en) 2011-02-03 2014-04-29 Freescale Semiconductor, Inc. Electronic circuit having shared leakage current reduction circuits
US8537625B2 (en) 2011-03-10 2013-09-17 Freescale Semiconductor, Inc. Memory voltage regulator with leakage current voltage control
US9035629B2 (en) 2011-04-29 2015-05-19 Freescale Semiconductor, Inc. Voltage regulator with different inverting gain stages
TWI557546B (en) * 2012-01-11 2016-11-11 技嘉科技股份有限公司 All-in-one computer and power management method thereof
KR20130087853A (en) * 2012-01-30 2013-08-07 삼성전자주식회사 Power control system and method for operating the same
US20140122916A1 (en) * 2012-10-31 2014-05-01 Guadalupe J. Garcia Reducing the overhead associated with frequency changes in processors
US9323300B2 (en) 2012-11-27 2016-04-26 International Business Machines Corporation Computing system voltage control
US9218044B2 (en) 2012-11-27 2015-12-22 International Business Machines Corporation Computing system frequency target monitor
US9348402B2 (en) 2013-02-19 2016-05-24 Qualcomm Incorporated Multiple critical paths having different threshold voltages in a single processor core
US20140281622A1 (en) * 2013-03-15 2014-09-18 Mahesh Wagh Method, apparatus, and system for improving resume times for root ports and root port integrated endpoints
US9195293B1 (en) 2013-05-03 2015-11-24 Western Digital Technologies, Inc. User controlled data storage device power and performance settings
US8884683B1 (en) * 2013-07-08 2014-11-11 Samsung Electronics Co., Ltd. Semiconductor integrated circuit and operating method of semiconductor integrated circuit
US9746909B2 (en) 2014-02-25 2017-08-29 International Business Machines Corporation Computer program product and a node implementing power management by associated power management controllers based on distributed node power consumption and priority data
US20150241944A1 (en) 2014-02-25 2015-08-27 International Business Machines Corporation Distributed power management with performance and power boundaries
US10359833B2 (en) 2016-06-20 2019-07-23 Qualcomm Incorporated Active-core-based performance boost
US10290289B2 (en) 2017-04-01 2019-05-14 Intel Corporation Adaptive multibit bus for energy optimization
US11537375B2 (en) * 2019-08-23 2022-12-27 Intel Corporation Digitally coordinated dynamically adaptable clock and voltage supply apparatus and method
US11239709B2 (en) 2020-04-30 2022-02-01 Nucurrent, Inc. Operating frequency based power level altering in extended range wireless power transmitters
US11482890B2 (en) 2020-04-30 2022-10-25 Nucurrent, Inc. Surface mountable wireless power transmitter for transmission at extended range
US11476722B2 (en) 2020-04-30 2022-10-18 Nucurrent, Inc. Precision power level control for extended range wireless power transfer
US11637459B2 (en) 2020-12-23 2023-04-25 Nucurrent, Inc. Wireless power transmitters for transmitting power at extended separation distances utilizing T-Core shielding
US11757311B2 (en) 2020-12-23 2023-09-12 Nucurrent, Inc. Wireless power transmitters and associated base stations for transmitting power at extended separation distances
US11476711B2 (en) 2020-12-23 2022-10-18 Nucurrent, Inc. Wireless power transmitters and associated base stations for through-structure charging
US11387684B1 (en) 2020-12-23 2022-07-12 Nucurrent, Inc. Wireless power transmitters and associated base stations for transmitting power at extended separation distances
US11387674B1 (en) 2020-12-23 2022-07-12 Nucurrent, Inc. Wireless power transmitters for transmitting power at extended separation distances utilizing concave shielding
US11532956B2 (en) 2021-04-30 2022-12-20 Nucurrent, Inc. Power capability detection with verification load in power level control systems for wireless power transmission
US11942799B2 (en) 2021-04-30 2024-03-26 Nucurrent, Inc. False notification suppression in wireless power transfer system
US11482891B1 (en) 2021-04-20 2022-10-25 Nucurrent, Inc. Timing verification in precision power level control systems for wireless power transmission
US11539247B2 (en) 2021-04-30 2022-12-27 Nucurrent, Inc. Power capability detection in precision power level control systems for wireless power transmission
US11791667B2 (en) * 2021-04-30 2023-10-17 Nucurrent, Inc. Power capability detection for wireless power transmission based on receiver power request
US11967830B2 (en) 2021-10-12 2024-04-23 Nucurrent, Inc. Wireless power transmitters for transmitting power at extended separation distances with magnetic connectors
US11637448B1 (en) 2021-10-12 2023-04-25 Nucurrent, Inc. Wireless power transmitter with removable magnetic connector panel for vehicular use

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US562412A (en) * 1896-06-23 Thomas george mcewen
US5021679A (en) 1989-06-30 1991-06-04 Poqet Computer Corporation Power supply and oscillator for a computer system providing automatic selection of supply voltage and frequency
US5153535A (en) 1989-06-30 1992-10-06 Poget Computer Corporation Power supply and oscillator for a computer system providing automatic selection of supply voltage and frequency
US5175706A (en) 1989-12-07 1992-12-29 Sgs-Thomson Microelectronics S.A. Programming voltage generator circuit for programmable memory
US5752011A (en) 1994-06-20 1998-05-12 Thomas; C. Douglas Method and system for controlling a processor's clock frequency in accordance with the processor's temperature
US5457407A (en) 1994-07-06 1995-10-10 Sony Electronics Inc. Binary weighted reference circuit for a variable impedance output buffer
US5734585A (en) 1994-11-07 1998-03-31 Norand Corporation Method and apparatus for sequencing power delivery in mixed supply computer systems
US6035407A (en) 1995-08-14 2000-03-07 Compaq Computer Corporation Accomodating components
US5787294A (en) 1995-10-13 1998-07-28 Vlsi Technology, Inc. System for reducing the power consumption of a computer system and method therefor
US5760636A (en) * 1996-06-28 1998-06-02 Intel Corporation Adjusting clock frequency and voltage supplied to a processor in a computer system
JPH1111565A (en) 1997-06-24 1999-01-19 Nisshin:Kk Cover
JP3541623B2 (en) * 1997-06-27 2004-07-14 松下電器産業株式会社 Data processing device
JPH11161385A (en) 1997-11-28 1999-06-18 Toshiba Corp Computer system and its system state control method
US6040845A (en) 1997-12-22 2000-03-21 Compaq Computer Corp. Device and method for reducing power consumption within an accelerated graphics port target
US6085330A (en) 1998-04-07 2000-07-04 Advanced Micro Devices, Inc. Control circuit for switching a processor between multiple low power states to allow cache snoops
US6460106B1 (en) 1998-10-20 2002-10-01 Compaq Information Technologies Group, L.P. Bus bridge for hot docking in a portable computer system
US6118306A (en) * 1998-12-03 2000-09-12 Intel Corporation Changing clock frequency
US6311281B1 (en) * 1999-03-02 2001-10-30 Edwin H. Taylor Apparatus and method for changing processor clock ratio settings
US6564329B1 (en) 1999-03-16 2003-05-13 Linkup Systems Corporation System and method for dynamic clock generation
US6418535B1 (en) 1999-04-28 2002-07-09 International Business Machines Corporation Bi-level power saver method for portable or laptop computer
US6425086B1 (en) * 1999-04-30 2002-07-23 Intel Corporation Method and apparatus for dynamic power control of a low power processor
US6941480B1 (en) * 2000-09-30 2005-09-06 Intel Corporation Method and apparatus for transitioning a processor state from a first performance mode to a second performance mode
US6715089B2 (en) 2001-01-22 2004-03-30 Ati International Srl Reducing power consumption by estimating engine load and reducing engine clock speed

Also Published As

Publication number Publication date
DE60116650D1 (en) 2006-04-06
EP1325402B1 (en) 2006-01-11
WO2002029535A3 (en) 2003-03-27
US6941480B1 (en) 2005-09-06
US7155621B2 (en) 2006-12-26
US20020083356A1 (en) 2002-06-27
WO2002029535A2 (en) 2002-04-11
KR100518376B1 (en) 2005-10-05
KR20030041142A (en) 2003-05-23
EP1325402A2 (en) 2003-07-09
TW539939B (en) 2003-07-01
ATE315803T1 (en) 2006-02-15
DE60116650T2 (en) 2006-07-27

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