SG106791G - Means for parking read/write heads in a disc drive using the back-emf of the spindle motor to operate a stepper motor - Google Patents

Means for parking read/write heads in a disc drive using the back-emf of the spindle motor to operate a stepper motor

Info

Publication number
SG106791G
SG106791G SG1067/91A SG106791A SG106791G SG 106791 G SG106791 G SG 106791G SG 1067/91 A SG1067/91 A SG 1067/91A SG 106791 A SG106791 A SG 106791A SG 106791 G SG106791 G SG 106791G
Authority
SG
Singapore
Prior art keywords
power
heads
pulses
stepper motor
spindle motor
Prior art date
Application number
SG1067/91A
Other languages
English (en)
Original Assignee
Seagate Technology
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 Seagate Technology filed Critical Seagate Technology
Publication of SG106791G publication Critical patent/SG106791G/en

Links

Classifications

    • 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
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation

Landscapes

  • Rotational Drive Of Disk (AREA)
  • Moving Of Heads (AREA)
  • Control Of Stepping Motors (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
SG1067/91A 1985-11-20 1991-12-17 Means for parking read/write heads in a disc drive using the back-emf of the spindle motor to operate a stepper motor SG106791G (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/800,060 US4679102A (en) 1985-11-20 1985-11-20 Method and means for parking read/write heads in a disc drive using the back-EMF of the spindle motor to operate a stepper motor

Publications (1)

Publication Number Publication Date
SG106791G true SG106791G (en) 1992-03-20

Family

ID=25177407

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1067/91A SG106791G (en) 1985-11-20 1991-12-17 Means for parking read/write heads in a disc drive using the back-emf of the spindle motor to operate a stepper motor

Country Status (9)

Country Link
US (1) US4679102A (de)
EP (1) EP0224378B1 (de)
JP (1) JPS62219264A (de)
AT (1) ATE68906T1 (de)
AU (1) AU582529B2 (de)
CA (1) CA1269753A (de)
DE (1) DE3682167D1 (de)
HK (1) HK73492A (de)
SG (1) SG106791G (de)

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US5079653A (en) * 1988-07-29 1992-01-07 Seagate Technology, Inc. Information storage disc transducer position control system using last step damping
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US5675230A (en) * 1994-03-01 1997-10-07 Seagate Technology, Inc. Method and apparatus for dynamic low voltage spindle motor operation
US5596458A (en) * 1994-12-19 1997-01-21 Integral Peripherals, Inc. Variable zone layout for information storage disk drive
US6091559A (en) * 1994-12-19 2000-07-18 Mobile Storage Technology Inc. Variable zone layout and track pitch parameter considerations for information storage disk drive
KR100223645B1 (ko) * 1995-08-31 1999-10-15 윤종용 디스크 파킹존의 마모를 분산시키기 위한 하드 디스크 드라이브의 브이.씨.엠 제어방법
US5769912A (en) 1995-10-16 1998-06-23 Mansur Industries Inc. System and method of vapor recovery in industrial washing equipment
US6282049B1 (en) 1995-10-20 2001-08-28 Seagate Technology Llc Applying a ramped voltage source across an actuator coil to retract a disc drive actuator
US5742800A (en) * 1995-10-31 1998-04-21 Seagate Technology, Inc. Disc drive reset using power valid, clocks valid and delay criteria
US5729399A (en) * 1995-12-13 1998-03-17 International Business Machines Corporation Contact start/stop disk drive with minimized head-disk wear in textured landing zone
US5694271A (en) * 1996-04-18 1997-12-02 Seagate Technology, Inc. Space efficient magnetic toggle latch assembly for a disc drive actuator
US5889629A (en) * 1996-06-27 1999-03-30 Western Digital Corporation Method and apparatus for controlling disk drive head parking during power interruption
KR100420993B1 (ko) * 1996-10-17 2004-05-17 삼성전자주식회사 슬립모드 및 대기모드시 파킹으로 인한 헤드 충격 최소화 방법
US6548973B1 (en) * 1997-01-15 2003-04-15 Texas Instruments Incorporated Method and apparatus for braking a polyphase DC motor
US5951687A (en) * 1997-01-31 1999-09-14 Seagate Technology, Inc. Storage disc with self diagnostics and configuration
KR19990061744A (ko) * 1997-12-31 1999-07-26 윤종용 하드 디스크 드라이브 헤드의 파킹 방법
US6129282A (en) * 1998-07-20 2000-10-10 Psc Scanning, Inc. Rugged scanning subsystem for data reading
US6639749B1 (en) 1999-01-21 2003-10-28 Seagate Technology Llc Supplying power from a spindle motor in a disc drive system
WO2000051118A1 (en) * 1999-02-25 2000-08-31 Stmicroelectronics Asia Pacific Pte Ltd A method and apparatus for controlling a disk drive under a power loss condition
US6560057B1 (en) 1999-04-30 2003-05-06 International Business Machines Corporation Head positioning system for a disk drive during a power down condition
US6566832B2 (en) * 1999-06-02 2003-05-20 Maxtor Corporation Method and apparatus for parking a read/write head during power interruptions by dynamic sequencing
US7342741B1 (en) 2000-02-10 2008-03-11 Esgw Holdings Limited Disk drive with variable track density
US7633702B1 (en) * 2000-03-31 2009-12-15 Seagate Technology Llc Method and apparatus for powering voice coil motor retract circuit while braking spindle
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DE60125878T2 (de) * 2000-09-12 2007-10-18 Koninklijke Philips Electronics N.V. Motorsteuervorrichtung, die eine Messung der Umdrehungsgeschwindigkeit des Rotors erlaubt
US6859340B2 (en) 2001-03-09 2005-02-22 Seagate Technology Llc Method and device for retracting an actuator
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JP2002334533A (ja) * 2001-05-08 2002-11-22 Toshiba Corp ディスク装置及び該装置におけるヘッド制御可否判定方法
US6909572B2 (en) * 2003-05-07 2005-06-21 Stmicroelectronics S.R.L. Disk drive system and method for operating same
US7295395B2 (en) 2004-03-12 2007-11-13 Seagate Technology Llc Sensing a prior transducer position by a motion pattern
GB0704439D0 (en) * 2007-03-08 2007-04-18 Ami Semiconductor Belgium Bvba Output contact for feedback in intergrated circuit motor driver
US8854765B2 (en) * 2013-03-01 2014-10-07 Stmicroelectronics Asia Pacific Pte. Ltd. Regulating distribution of power in a hard disk drive following a power loss

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Also Published As

Publication number Publication date
US4679102A (en) 1987-07-07
HK73492A (en) 1992-10-02
EP0224378B1 (de) 1991-10-23
CA1269753A (en) 1990-05-29
EP0224378A2 (de) 1987-06-03
AU6539086A (en) 1987-05-28
JPS62219264A (ja) 1987-09-26
EP0224378A3 (en) 1989-11-15
ATE68906T1 (de) 1991-11-15
DE3682167D1 (de) 1991-11-28
AU582529B2 (en) 1989-03-23

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