TW409242B - Signal processing apparatus, method of supplying power to a signal processing apparatus, control apparatus for controlling a signal processing apparatus, and disk drive - Google Patents

Signal processing apparatus, method of supplying power to a signal processing apparatus, control apparatus for controlling a signal processing apparatus, and disk drive Download PDF

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Publication number
TW409242B
TW409242B TW087116909A TW87116909A TW409242B TW 409242 B TW409242 B TW 409242B TW 087116909 A TW087116909 A TW 087116909A TW 87116909 A TW87116909 A TW 87116909A TW 409242 B TW409242 B TW 409242B
Authority
TW
Taiwan
Prior art keywords
signal processing
power supply
processing section
read
write
Prior art date
Application number
TW087116909A
Other languages
English (en)
Chinese (zh)
Inventor
Hiroki Haraguchi
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of TW409242B publication Critical patent/TW409242B/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F1/3268—Power saving in hard disk drive
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F1/3221—Monitoring of peripheral devices of disk drive devices
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
    • G11B20/1024—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation wherein a phase-locked loop [PLL] is used
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B2020/10935—Digital recording or reproducing wherein a time constraint must be met
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
    • G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
    • G11B33/122—Arrangements for providing electrical connections, e.g. connectors, cables, switches
    • 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)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Digital Magnetic Recording (AREA)
  • Power Sources (AREA)
TW087116909A 1998-04-28 1998-10-12 Signal processing apparatus, method of supplying power to a signal processing apparatus, control apparatus for controlling a signal processing apparatus, and disk drive TW409242B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10118829A JPH11312356A (ja) 1998-04-28 1998-04-28 信号処理装置の電源供給方法、信号処理装置、制御装置及びディスク装置

Publications (1)

Publication Number Publication Date
TW409242B true TW409242B (en) 2000-10-21

Family

ID=14746193

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087116909A TW409242B (en) 1998-04-28 1998-10-12 Signal processing apparatus, method of supplying power to a signal processing apparatus, control apparatus for controlling a signal processing apparatus, and disk drive

Country Status (4)

Country Link
US (1) US6292322B1 (enExample)
JP (1) JPH11312356A (enExample)
KR (1) KR100279879B1 (enExample)
TW (1) TW409242B (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1410386A2 (en) * 2000-11-09 2004-04-21 Burstein Technologies, Inc. Disc drive system and methods for use with bio-discs
US6813111B2 (en) * 2000-11-24 2004-11-02 Texas Instruments Incorporated Implementation method of digital phase-locked loop
WO2002056311A2 (en) * 2001-01-11 2002-07-18 Burstein Technologies Inc Optical disc analysis system including related methods for biological and medical imaging
US7111182B2 (en) * 2003-08-29 2006-09-19 Texas Instruments Incorporated Thread scheduling mechanisms for processor resource power management
US7782805B1 (en) 2005-02-08 2010-08-24 Med Belhadj High speed packet interface and method
JP2006236057A (ja) * 2005-02-25 2006-09-07 Sony Corp 情報処理装置および情報処理方法、並びにプログラム
US7907364B2 (en) * 2008-08-29 2011-03-15 Western Digital Technologies, Inc. Disk drive including a delay circuit to provide a delayed reset signal
US20100148708A1 (en) * 2008-12-11 2010-06-17 Jorgenson Joel A Voltage scaling of an electric motor load to reduce power consumption
US8135972B2 (en) * 2009-03-10 2012-03-13 Cortina Systems, Inc. Data interface power consumption control

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0775043B2 (ja) * 1986-10-24 1995-08-09 ティアツク株式会社 磁気デイスク装置のデ−タ読み出し及び書き込み回路
US5402200A (en) * 1988-02-04 1995-03-28 Conner Peripherals, Inc. Low-power hard disk drive system architecture
JP2727689B2 (ja) 1989-10-06 1998-03-11 ソニー株式会社 デイスクドライブ装置
US5412809A (en) * 1992-11-12 1995-05-02 Mitsumi Electric Co., Ltd. Disk drive power control circuit and method
JP3122865B2 (ja) 1992-12-09 2001-01-09 日本テキサス・インスツルメンツ株式会社 Ａ／ｄコンバータ
US5412519A (en) * 1993-08-26 1995-05-02 International Business Machines Corporation Optimization of disk drive spindle speed during low power mode
US5452277A (en) * 1993-12-30 1995-09-19 International Business Machines Corporation Adaptive system for optimizing disk drive power consumption
EP0686971B1 (en) * 1994-06-07 2002-02-06 Hitachi, Ltd. Information storing device and method for controlling same to record/reproduce information by selecting one of working modes
JPH08147795A (ja) * 1994-11-17 1996-06-07 Fujitsu Ltd 磁気テープ装置
US5774292A (en) * 1995-04-13 1998-06-30 International Business Machines Corporation Disk drive power management system and method

Also Published As

Publication number Publication date
KR100279879B1 (ko) 2001-03-02
JPH11312356A (ja) 1999-11-09
US6292322B1 (en) 2001-09-18
KR19990081774A (ko) 1999-11-15

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GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees