WO2006068817A3 - Method and apparatus for on-demand power management - Google Patents

Method and apparatus for on-demand power management Download PDF

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Publication number
WO2006068817A3
WO2006068817A3 PCT/US2005/044053 US2005044053W WO2006068817A3 WO 2006068817 A3 WO2006068817 A3 WO 2006068817A3 US 2005044053 W US2005044053 W US 2005044053W WO 2006068817 A3 WO2006068817 A3 WO 2006068817A3
Authority
WO
WIPO (PCT)
Prior art keywords
processing
demand
system controller
power management
demand power
Prior art date
Application number
PCT/US2005/044053
Other languages
French (fr)
Other versions
WO2006068817A2 (en
Inventor
Joel A Jorgenson
Divyata Kakumanu
Brian M Morlock
Original Assignee
Packet Digital
Joel A Jorgenson
Divyata Kakumanu
Brian M Morlock
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 Packet Digital, Joel A Jorgenson, Divyata Kakumanu, Brian M Morlock filed Critical Packet Digital
Priority to EP05826485A priority Critical patent/EP1836545B1/en
Priority to JP2007548259A priority patent/JP5159316B2/en
Priority to KR1020077016755A priority patent/KR101282126B1/en
Publication of WO2006068817A2 publication Critical patent/WO2006068817A2/en
Publication of WO2006068817A3 publication Critical patent/WO2006068817A3/en

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
    • 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
    • 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
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • 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
    • G06F1/04—Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/08—Clock generators with changeable or programmable 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
    • G06F1/324—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
    • G06F1/3296—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

Abstract

An apparatus for on-demand power management including a system controller, a clock domain manager coupled to the system controller and a power distribution manager coupled to the system controller. The system controller monitors a processing demand in a processing system. The clock domain manager provides one or more clock frequencies and, in response to the processing demand, switches between a first set of clock frequencies and a second set of clock frequencies without halting the processing system. The power distribution manager provides one or more operating voltages and, in response to the processing demand, switches between a first set of voltages and a second set of voltages without halting the processing system.
PCT/US2005/044053 2004-12-21 2005-12-05 Method and apparatus for on-demand power management WO2006068817A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05826485A EP1836545B1 (en) 2004-12-21 2005-12-05 Method and apparatus for on-demand power management
JP2007548259A JP5159316B2 (en) 2004-12-21 2005-12-05 On-demand power management method and equipment
KR1020077016755A KR101282126B1 (en) 2004-12-21 2005-12-05 Method and apparatus for on­demand power management

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/020,077 US7228446B2 (en) 2004-12-21 2004-12-21 Method and apparatus for on-demand power management
US11/020,077 2004-12-21

Publications (2)

Publication Number Publication Date
WO2006068817A2 WO2006068817A2 (en) 2006-06-29
WO2006068817A3 true WO2006068817A3 (en) 2007-07-05

Family

ID=36597599

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/044053 WO2006068817A2 (en) 2004-12-21 2005-12-05 Method and apparatus for on-demand power management

Country Status (5)

Country Link
US (5) US7228446B2 (en)
EP (1) EP1836545B1 (en)
JP (1) JP5159316B2 (en)
KR (1) KR101282126B1 (en)
WO (1) WO2006068817A2 (en)

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Also Published As

Publication number Publication date
JP5159316B2 (en) 2013-03-06
KR20070100314A (en) 2007-10-10
US20070198867A1 (en) 2007-08-23
EP1836545A4 (en) 2010-05-05
US7398407B2 (en) 2008-07-08
US20120089856A1 (en) 2012-04-12
KR101282126B1 (en) 2013-07-04
US20060136763A1 (en) 2006-06-22
US20080263377A1 (en) 2008-10-23
EP1836545A2 (en) 2007-09-26
US7228446B2 (en) 2007-06-05
US8020015B2 (en) 2011-09-13
WO2006068817A2 (en) 2006-06-29
EP1836545B1 (en) 2012-11-21
US20080263382A1 (en) 2008-10-23
JP2008524745A (en) 2008-07-10
US8095818B2 (en) 2012-01-10

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