CA2024552A1 - Power management for a laptop computer - Google Patents

Power management for a laptop computer

Info

Publication number
CA2024552A1
CA2024552A1 CA002024552A CA2024552A CA2024552A1 CA 2024552 A1 CA2024552 A1 CA 2024552A1 CA 002024552 A CA002024552 A CA 002024552A CA 2024552 A CA2024552 A CA 2024552A CA 2024552 A1 CA2024552 A1 CA 2024552A1
Authority
CA
Canada
Prior art keywords
computer
power
coupled
units
cpu
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
CA002024552A
Other languages
English (en)
French (fr)
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
R. Steven Smith
Mike S. Hanlon
Robert L. Bailey
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 R. Steven Smith, Mike S. Hanlon, Robert L. Bailey, Apple Computer, Inc. filed Critical R. Steven Smith
Publication of CA2024552A1 publication Critical patent/CA2024552A1/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
    • 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
CA002024552A 1989-09-08 1990-09-04 Power management for a laptop computer Abandoned CA2024552A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40563789A 1989-09-08 1989-09-08
US405,637 1989-09-08

Publications (1)

Publication Number Publication Date
CA2024552A1 true CA2024552A1 (en) 1991-03-09

Family

ID=23604545

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002024552A Abandoned CA2024552A1 (en) 1989-09-08 1990-09-04 Power management for a laptop computer

Country Status (8)

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

Families Citing this family (44)

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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 (ja) * 1991-04-23 2000-10-10 セイコーエプソン株式会社 情報処理機器
DE69233393T2 (de) * 1991-05-17 2005-08-11 Packard Bell NEC, Inc., Woodland Hills Leistungsmanagementsfunktion für einen rückwärtskompatiblen mikroprozessor
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
DE69332813T2 (de) * 1992-09-17 2004-03-11 Kabushiki Kaisha Toshiba, Kawasaki Tragbarer Rechner mit zugeordneter Registergruppe und Peripheriesteuerbus zwischen Systembus und Peripheriesteuerung
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 (ko) * 1993-04-21 1999-06-01 김광호 휴대용 정보처리기기의 전원공급 제어장치 및 그의 구동방법
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
EP0654726B1 (de) * 1993-11-23 1998-12-16 Advanced Micro Devices, Inc. Leistungssteuerungssysteme für Rechner
KR100352045B1 (ko) * 1994-01-10 2002-12-28 선 마이크로시스템즈 인코퍼레이티드 컴퓨터시스템에서전력소모를감소시키기위한방법및장치
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
WO1995031029A2 (en) * 1994-05-10 1995-11-16 Apple Computer, Inc. A method and apparatus for controlling power for subsystems
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
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
JP3224715B2 (ja) * 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 コンピュータ・システムをウェイクさせる低電力リング検出
US5675810A (en) * 1994-09-07 1997-10-07 Compaq Computer Corporation Reducing power usage in a personal computer
DE4444283A1 (de) * 1994-12-13 1995-04-20 Udo Metzkow System zur Schaltung der Komponenten eines lokalen Netzwerkes (LAN)"
EP0727728A1 (de) * 1995-02-15 1996-08-21 International Business Machines Corporation Leistungssteuerung eines Computersystems
DE19512204A1 (de) * 1995-03-31 1995-08-31 Heinzinger Electronic Gmbh Stromversorgung für Personal Computer
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 (de) 1998-01-30 2004-09-16 Siemens Ag Verfahren zum energiesparenden Betreiben eines Steuergeräts
JP3853061B2 (ja) * 1998-03-18 2006-12-06 三菱電機株式会社 入出力切換装置
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 (ja) * 1999-03-12 2008-11-19 富士通株式会社 電力制御方法及び電子機器並びに記録媒体
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 (de) 2001-11-21 2005-11-17 Infineon Technologies Ag Halbleiterspeicherbaustein mit geringem Stromverbrauch
DE10213351C1 (de) * 2002-03-26 2003-07-24 Uenal Baeder Trenneinrichtung für Kommunikationsverbindungen
FI115562B (fi) * 2002-03-27 2005-05-31 Nokia Corp Menetelmä ja järjestelmä tehonkulutuksen määrittämiseksi elektroniikkalaitteen yhteydessä ja elektroniikkalaite
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

Family Cites Families (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

Also Published As

Publication number Publication date
HK36394A (en) 1994-04-29
JPH03171317A (ja) 1991-07-24
GB2235797B (en) 1993-08-18
SE9002838L (sv) 1991-03-09
KR910006825A (ko) 1991-04-29
GB2235797A (en) 1991-03-13
GB9018259D0 (en) 1990-10-03
AU6016890A (en) 1991-03-14
DE4028175A1 (de) 1991-03-21
SE9002838D0 (sv) 1990-09-06
AU629019B2 (en) 1992-09-24

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Legal Events

Date Code Title Description
FZDE Discontinued