BR9502512A - Sistema para medir a posiçao de um atuador gerar sinal de relógio de referencia e gravar informaçoes de servo em um acionador de discos de gravaçao de dados - Google Patents

Sistema para medir a posiçao de um atuador gerar sinal de relógio de referencia e gravar informaçoes de servo em um acionador de discos de gravaçao de dados

Info

Publication number
BR9502512A
BR9502512A BR9502512A BR9502512A BR9502512A BR 9502512 A BR9502512 A BR 9502512A BR 9502512 A BR9502512 A BR 9502512A BR 9502512 A BR9502512 A BR 9502512A BR 9502512 A BR9502512 A BR 9502512A
Authority
BR
Brazil
Prior art keywords
disk drive
actuator
servo
gratings
reference clock
Prior art date
Application number
BR9502512A
Other languages
English (en)
Inventor
John Stewart Best
Wen-Wei Chiang
Steven Robert Hetzler
Donald Edward Horne
Chih-Kung Lee
Vincent Marrello
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of BR9502512A publication Critical patent/BR9502512A/pt

Links

Classifications

    • 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
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • 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
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5534—Initialisation, calibration, e.g. cylinder "set-up"

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Optical Transform (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
BR9502512A 1994-05-27 1995-05-23 Sistema para medir a posiçao de um atuador gerar sinal de relógio de referencia e gravar informaçoes de servo em um acionador de discos de gravaçao de dados BR9502512A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25019794A 1994-05-27 1994-05-27

Publications (1)

Publication Number Publication Date
BR9502512A true BR9502512A (pt) 1996-04-09

Family

ID=22946700

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9502512A BR9502512A (pt) 1994-05-27 1995-05-23 Sistema para medir a posiçao de um atuador gerar sinal de relógio de referencia e gravar informaçoes de servo em um acionador de discos de gravaçao de dados

Country Status (13)

Country Link
US (1) US5909333A (pt)
EP (1) EP0761002B1 (pt)
JP (2) JPH07326142A (pt)
KR (1) KR100207879B1 (pt)
CN (1) CN1096071C (pt)
AT (1) ATE172571T1 (pt)
BR (1) BR9502512A (pt)
CA (1) CA2144403A1 (pt)
DE (1) DE69505524T2 (pt)
MY (1) MY113053A (pt)
RU (1) RU2141691C1 (pt)
TW (1) TW256914B (pt)
WO (1) WO1995033262A1 (pt)

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Also Published As

Publication number Publication date
KR100207879B1 (ko) 1999-07-15
US5909333A (en) 1999-06-01
MY113053A (en) 2001-11-30
CA2144403A1 (en) 1995-11-28
CN1126874A (zh) 1996-07-17
DE69505524T2 (de) 1999-06-02
EP0761002A1 (en) 1997-03-12
DE69505524D1 (de) 1998-11-26
WO1995033262A1 (en) 1995-12-07
RU2141691C1 (ru) 1999-11-20
JPH07326142A (ja) 1995-12-12
TW256914B (en) 1995-09-11
JP2001043643A (ja) 2001-02-16
ATE172571T1 (de) 1998-11-15
CN1096071C (zh) 2002-12-11
EP0761002B1 (en) 1998-10-21

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Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.

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Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2607 DE 22-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.