GB2235797B - Power management for a computer. - Google Patents

Power management for a computer.

Info

Publication number
GB2235797B
GB2235797B GB9018259A GB9018259A GB2235797B GB 2235797 B GB2235797 B GB 2235797B GB 9018259 A GB9018259 A GB 9018259A GB 9018259 A GB9018259 A GB 9018259A GB 2235797 B GB2235797 B GB 2235797B
Authority
GB
United Kingdom
Prior art keywords
computer
power management
management
power
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.)
Expired - Fee Related
Application number
GB9018259A
Other versions
GB2235797A (en
GB9018259D0 (en
Inventor
R Steven Smith
Mike S Hanlon
Robert L Bailey
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.)
Apple Inc
Original Assignee
Apple Computer Inc
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 Apple Computer Inc filed Critical Apple Computer Inc
Publication of GB9018259D0 publication Critical patent/GB9018259D0/en
Publication of GB2235797A publication Critical patent/GB2235797A/en
Application granted granted Critical
Publication of GB2235797B publication Critical patent/GB2235797B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
    • 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
    • G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
    • G06F1/3215—Monitoring of peripheral devices
    • 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
    • G06F1/3237—Power saving characterised by the action undertaken by disabling clock generation or distribution
    • 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
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Power Sources (AREA)
  • Direct Current Feeding And Distribution (AREA)
GB9018259A 1989-09-08 1990-08-20 Power management for a computer. Expired - Fee Related GB2235797B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US40563789A 1989-09-08 1989-09-08

Publications (3)

Publication Number Publication Date
GB9018259D0 GB9018259D0 (en) 1990-10-03
GB2235797A GB2235797A (en) 1991-03-13
GB2235797B true GB2235797B (en) 1993-08-18

Family

ID=23604545

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9018259A Expired - Fee Related GB2235797B (en) 1989-09-08 1990-08-20 Power management for a computer.

Country Status (8)

Country Link
JP (1) JPH03171317A (en)
KR (1) KR910006825A (en)
AU (1) AU629019B2 (en)
CA (1) CA2024552A1 (en)
DE (1) DE4028175A1 (en)
GB (1) GB2235797B (en)
HK (1) HK36394A (en)
SE (1) SE9002838L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6216235B1 (en) 1994-06-20 2001-04-10 C. Douglass Thomas Thermal and power management for computer systems

Families Citing this family (43)

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US5355501A (en) * 1990-03-09 1994-10-11 Novell, Inc. Idle detection system
US5230074A (en) * 1991-01-25 1993-07-20 International Business Machines Corporation Battery operated computer power management system
JP3097065B2 (en) * 1991-04-23 2000-10-10 セイコーエプソン株式会社 Information processing equipment
WO1992021081A1 (en) * 1991-05-17 1992-11-26 Zenith Data Systems Corporation Suspend/resume capability for a protected mode microprocessor and hard disk, and idle mode implementation
WO1993006543A1 (en) * 1991-09-27 1993-04-01 Kabushiki Kaisha Toshiba Portable computer having function of switching over cpu clock
GB2264794B (en) * 1992-03-06 1995-09-20 Intel Corp Method and apparatus for automatic power management in a high integration floppy disk controller
US5329625A (en) * 1992-04-15 1994-07-12 International Business Machines Corp. System to service processor interface for a tablet computer
US5423045A (en) * 1992-04-15 1995-06-06 International Business Machines Corporation System for distributed power management in portable computers
EP0973087B1 (en) * 1992-09-17 2003-03-26 Kabushiki Kaisha Toshiba Portable computer having dedicated register group and peripheral controller bus between system bus and peripheral controller
US5339445A (en) * 1992-11-16 1994-08-16 Harris Corporation Method of autonomously reducing power consumption in a computer sytem by compiling a history of power consumption
KR100188087B1 (en) * 1993-04-21 1999-06-01 김광호 Power supply control device and its driving method
US5337285A (en) * 1993-05-21 1994-08-09 Rambus, Inc. Method and apparatus for power control in devices
US5548763A (en) * 1993-07-26 1996-08-20 International Business Machines Corporation Desk top computer system having multi-level power management
US5408668A (en) * 1993-07-28 1995-04-18 Tornai; Richard Method and apparatus for controlling the provision of power to computer peripherals
US5894577A (en) * 1993-09-22 1999-04-13 Advanced Micro Devices, Inc. Interrupt controller with external in-service indication for power management within a computer system
DE69415284T2 (en) * 1993-11-23 1999-08-19 Advanced Micro Devices Inc Power control systems for computers
DE69517712T2 (en) * 1994-01-10 2001-03-08 Sun Microsystems Inc Method and device for reducing the power consumption in a computer system
US5504910A (en) * 1994-02-02 1996-04-02 Advanced Micro Devices, Inc. Power management unit including software configurable state register and time-out counters for protecting against misbehaved software
US5535401A (en) * 1994-04-05 1996-07-09 International Business Machines Corporation Method and system of power and thermal management for a data processing system using object-oriented program design
US5493684A (en) * 1994-04-06 1996-02-20 Advanced Micro Devices Power management architecture including a power management messaging bus for conveying an encoded activity signal for optimal flexibility
AU2471395A (en) * 1994-05-10 1995-11-29 Apple Computer, Inc. A method and apparatus for controlling power for subsystems
JP3224715B2 (en) * 1994-09-07 2001-11-05 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 Low power ring detection to wake computer system
US5675810A (en) * 1994-09-07 1997-10-07 Compaq Computer Corporation Reducing power usage in a personal computer
US5530879A (en) * 1994-09-07 1996-06-25 International Business Machines Corporation Computer system having power management processor for switching power supply from one state to another responsive to a closure of a switch, a detected ring or an expiration of a timer
DE4444283A1 (en) * 1994-12-13 1995-04-20 Udo Metzkow System for switching the components of a local area network (LAN)
EP0727728A1 (en) * 1995-02-15 1996-08-21 International Business Machines Corporation Computer system power management
DE19512204A1 (en) * 1995-03-31 1995-08-31 Heinzinger Electronic Gmbh Power supply for personal computer for twenty-four hour telecommunications
US5708819A (en) * 1995-10-10 1998-01-13 Standard Microsystems Corporation Process and apparatus for generating power management events in a computer system
US6049882A (en) * 1997-12-23 2000-04-11 Lg Semicon Co., Ltd. Apparatus and method for reducing power consumption in a self-timed system
DE19803663B4 (en) 1998-01-30 2004-09-16 Siemens Ag Method for energy-saving operation of a control device
JP3853061B2 (en) * 1998-03-18 2006-12-06 三菱電機株式会社 Input / output switching device
US6367023B2 (en) * 1998-12-23 2002-04-02 Intel Corporation Method and apparatus of measuring current, voltage, or duty cycle of a power supply to manage power consumption in a computer system
JP4181685B2 (en) * 1999-03-12 2008-11-19 富士通株式会社 Power control method, electronic device, and recording medium
US6457134B1 (en) * 1999-04-21 2002-09-24 Palm, Inc. Portable computer with differentiated time-out feature
TW425769B (en) * 1999-07-08 2001-03-11 Via Tech Inc Mapping register structure of codec controller and powering down and suspending method using the same
US6754835B2 (en) * 2000-12-15 2004-06-22 International Business Machines Corporation Method and system for providing power fault tolerance in a network of chained computer systems through bidirectional links
US7539878B2 (en) * 2001-09-19 2009-05-26 Freescale Semiconductor, Inc. CPU powerdown method and apparatus therefor
GB0123421D0 (en) * 2001-09-28 2001-11-21 Memquest Ltd Power management system
DE10157057B4 (en) 2001-11-21 2005-11-17 Infineon Technologies Ag Semiconductor memory module with low power consumption
DE10213351C1 (en) * 2002-03-26 2003-07-24 Uenal Baeder Disconnection device for computer communications line connection uses electrical switching device controlled in dependence on computer supply voltage
FI115562B (en) 2002-03-27 2005-05-31 Nokia Corp Method and system for determining power consumption in connection with electronic device and electronic device
TW556421B (en) 2002-08-15 2003-10-01 Htc Corp Circuit and operating method for integrated interface of PDA and wireless communication system
US8683247B2 (en) * 2008-06-12 2014-03-25 Advanced Micro Devices, Inc. Method and apparatus for controlling power supply to primary processor and portion of peripheral devices by controlling switches in a power/reset module embedded in secondary processor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698748A (en) * 1983-10-07 1987-10-06 Essex Group, Inc. Power-conserving control system for turning-off the power and the clocking for data transactions upon certain system inactivity

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698748A (en) * 1983-10-07 1987-10-06 Essex Group, Inc. Power-conserving control system for turning-off the power and the clocking for data transactions upon certain system inactivity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6216235B1 (en) 1994-06-20 2001-04-10 C. Douglass Thomas Thermal and power management for computer systems
US7937599B1 (en) 1994-06-20 2011-05-03 Ipventure, Inc. Thermal and power management for computer systems

Also Published As

Publication number Publication date
SE9002838L (en) 1991-03-09
CA2024552A1 (en) 1991-03-09
SE9002838D0 (en) 1990-09-06
HK36394A (en) 1994-04-29
JPH03171317A (en) 1991-07-24
KR910006825A (en) 1991-04-29
AU629019B2 (en) 1992-09-24
DE4028175A1 (en) 1991-03-21
GB2235797A (en) 1991-03-13
GB9018259D0 (en) 1990-10-03
AU6016890A (en) 1991-03-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970820