DE69031262D1 - Verfahren und Gerät zum Erfassen der Transduktorlage - Google Patents

Verfahren und Gerät zum Erfassen der Transduktorlage

Info

Publication number
DE69031262D1
DE69031262D1 DE69031262T DE69031262T DE69031262D1 DE 69031262 D1 DE69031262 D1 DE 69031262D1 DE 69031262 T DE69031262 T DE 69031262T DE 69031262 T DE69031262 T DE 69031262T DE 69031262 D1 DE69031262 D1 DE 69031262D1
Authority
DE
Germany
Prior art keywords
detecting
transducer position
transducer
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
DE69031262T
Other languages
English (en)
Other versions
DE69031262T2 (de
Inventor
Gerald Lee Weispfenning
Lloyd Chambers Goss
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology International
Seagate Technology LLC
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 International, Seagate Technology LLC filed Critical Seagate Technology International
Application granted granted Critical
Publication of DE69031262D1 publication Critical patent/DE69031262D1/de
Publication of DE69031262T2 publication Critical patent/DE69031262T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means
    • G11B5/5556—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means with track following after a "seek"
DE69031262T 1989-09-29 1990-09-11 Verfahren und Gerät zum Erfassen der Transduktorlage Expired - Fee Related DE69031262T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/415,500 US5117408A (en) 1989-09-29 1989-09-29 Correlation of sectored servo position information

Publications (2)

Publication Number Publication Date
DE69031262D1 true DE69031262D1 (de) 1997-09-18
DE69031262T2 DE69031262T2 (de) 1998-01-08

Family

ID=23645928

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69031262T Expired - Fee Related DE69031262T2 (de) 1989-09-29 1990-09-11 Verfahren und Gerät zum Erfassen der Transduktorlage

Country Status (7)

Country Link
US (1) US5117408A (de)
EP (1) EP0420439B1 (de)
JP (1) JP2519346B2 (de)
DE (1) DE69031262T2 (de)
HK (1) HK1002047A1 (de)
PT (1) PT95442A (de)
SG (1) SG48060A1 (de)

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Publication number Priority date Publication date Assignee Title
US5210660A (en) * 1990-01-17 1993-05-11 International Business Machines Corporation Sectored servo independent of data architecture
US5321560A (en) * 1991-09-25 1994-06-14 Integral Peripherals, Inc. Embedded servo system for low power disk drives
US6310747B1 (en) 1991-09-25 2001-10-30 Mobile Storage Technology, Inc. Method for reducing external signal interference with signals in a computer disk storage system
US5379171A (en) 1991-09-25 1995-01-03 Integral Peripherals Microminiature hard disk drive
US5146183A (en) * 1991-09-27 1992-09-08 Maxtor Corporation Phase lock loop for sector servo system
EP0535991A1 (de) * 1991-10-03 1993-04-07 Fujitsu Limited Vorrichtung und Verfahren zur Erkennung von Kopfpositionsfehlern im magnetischen Plattenspeicher
US5210726A (en) * 1992-02-07 1993-05-11 Maxoptix Corporation Track seek method utilizing an ideal signal
US5477402A (en) * 1992-05-08 1995-12-19 International Business Machines Corporation Disk file with multiplexed servo system
US5309299A (en) * 1992-10-07 1994-05-03 International Business Machines Corporation Method and system for position error signal generation using auto correlation
US5297024A (en) * 1992-12-01 1994-03-22 Sgs-Thomson Microelectronics, Inc. Voice coil driver with variable gain in seek and track-follow modes
US5400201A (en) * 1993-10-25 1995-03-21 Syquest Technology, Inc. Servo burst pattern for removing offset caused by magnetic distortion and method associated therewith
US5847894A (en) * 1994-12-30 1998-12-08 International Business Machines Corporation Disk and storage device having an anti-alias data pattern located on a servo sector
US5867341A (en) * 1996-01-30 1999-02-02 Seagate Technology, Inc. Disc drive system using multiple pairs of embedded servo bursts
US5936790A (en) * 1996-09-03 1999-08-10 Maxtor Corporation Servo sector allocation for high sampling rate
US6327108B1 (en) * 1997-08-28 2001-12-04 Seagate Technology Llc Filter calibration method in a disc drive and apparatus
US5940240A (en) * 1997-08-29 1999-08-17 Western Digital Corporation Constant velocity servo linearity calibration method for MR head
US6426845B1 (en) 1998-05-21 2002-07-30 Seagate Technology Llc Asynchronous analog demodulator and method for a null-type servo pattern
US6195220B1 (en) * 1998-05-21 2001-02-27 Seagate Technology Llc Method and apparatus utilizing field ratioing demodulation techniques for a null-type servo pattern
US6243224B1 (en) 1998-05-21 2001-06-05 Seagate Technology Llc Asynchronous digital demodulator and method for a null-type servo pattern
US6181505B1 (en) 1998-06-26 2001-01-30 Seagate Technology Llc Synchronous digital demodulator with integrated read and servo channels
US6377413B1 (en) 1999-03-26 2002-04-23 Seagate Technology Llc Method and apparatus for encoding identification information on a magnetic disc
US6490117B1 (en) 1999-03-26 2002-12-03 Seagate Technology Llc Method of thermally printing servo patterns on magnetic media
US6421198B1 (en) 1999-04-27 2002-07-16 International Business Machines Corporation Linearity compensation for a position error signal based on repeatable and non-repeatable run out in a disk drive
US6522493B1 (en) 1999-04-27 2003-02-18 International Business Machines Corporation Position error signal linearization using an auxiliary discontinuity removal routine
US6490111B1 (en) 1999-08-25 2002-12-03 Seagate Technology Llc Method and apparatus for refreshing servo patterns in a disc drive
US6556933B1 (en) 1999-10-28 2003-04-29 Seagate Technology Llc Transducer instability detection in a digital channel
US6587303B1 (en) * 2000-06-09 2003-07-01 International Business Machines Corporation Servo control of a coarse actuator
US7050249B1 (en) * 2002-12-24 2006-05-23 Western Digital Technologies, Inc. System and method for processing track identification data in a disk drive
TWI258740B (en) * 2004-07-08 2006-07-21 Realtek Semiconductor Corp Apparatus and method for generating a tracking error signal in an optical disc drive
US7633842B2 (en) * 2004-07-08 2009-12-15 Realtek Semiconductor Corp. Apparatus for generating tracking error signal in optical disc drive
US7512043B2 (en) * 2004-07-08 2009-03-31 Realtek Semiconductor Corp. Apparatus and method for generating a tracking error signal in an optical disc drive
US7583569B2 (en) * 2004-07-08 2009-09-01 Realtek Semiconductor Corp. Apparatus and related method for generating a tracking error signal in an optical disc drive
US8625231B1 (en) * 2012-11-08 2014-01-07 HGST Netherlands B.V. Adjusting VGA analog gain for misaligned servo sectors in a disk drive
CN114048085B (zh) * 2022-01-12 2022-04-22 苏州浪潮智能科技有限公司 一种磁盘故障分析方法、装置、设备及可读存储介质

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032984A (en) * 1975-04-28 1977-06-28 Burroughs Corporation Transducer positioning system for providing both coarse and fine positioning
GB2039078B (en) * 1978-12-27 1982-11-24 Ibm Sampled data servo positioning system
US4414589A (en) * 1981-12-14 1983-11-08 Northern Telecom Inc. Embedded servo track following system and method for writing servo tracks
DE3382724T2 (de) * 1982-05-10 1994-06-09 Digital Equipment Corp Positioniersteuerungsverfahren mit sowohl kontinuierlichen als auch angefügten Informationen für einen Magnetplattenspeicher.
US4590526A (en) * 1983-11-01 1986-05-20 Amcodyne Incorporated Method and apparatus for controlling head movement relative to a disk in an embedded servo system
US4669004A (en) * 1986-02-27 1987-05-26 Quantum Corporation High capacity disk file with embedded sector servo
US4679103A (en) * 1986-04-29 1987-07-07 International Business Machines Corporation Digital servo control system for a data recording disk file
US4879612A (en) * 1986-11-26 1989-11-07 Data Technology Corporation Head positioning servo-mechanism with error reduction capabilities

Also Published As

Publication number Publication date
DE69031262T2 (de) 1998-01-08
US5117408A (en) 1992-05-26
JP2519346B2 (ja) 1996-07-31
SG48060A1 (en) 1998-04-17
EP0420439B1 (de) 1997-08-13
JPH03205665A (ja) 1991-09-09
HK1002047A1 (en) 1998-07-24
PT95442A (pt) 1992-05-29
EP0420439A1 (de) 1991-04-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SEAGATE TECHNOLOGY LLC, SCOTTS VALLEY, CALIF., US

8328 Change in the person/name/address of the agent

Free format text: HENKEL, FEILER & HAENZEL, 81675 MUENCHEN

8339 Ceased/non-payment of the annual fee