CA1213979A - Coarse position error signal generation in an optical disk storage system employing course servo tracks - Google Patents

Coarse position error signal generation in an optical disk storage system employing course servo tracks

Info

Publication number
CA1213979A
CA1213979A CA000455104A CA455104A CA1213979A CA 1213979 A CA1213979 A CA 1213979A CA 000455104 A CA000455104 A CA 000455104A CA 455104 A CA455104 A CA 455104A CA 1213979 A CA1213979 A CA 1213979A
Authority
CA
Canada
Prior art keywords
signal
collection surface
amplitude
signals
error signal
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
Application number
CA000455104A
Other languages
English (en)
French (fr)
Inventor
Majeed K. Abed
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.)
Storage Technology Partners II
Original Assignee
Majeed K. Abed
Storage Technology Partners Ii (Through Stc Optical Disk Development Corporation, Managing General Partner)
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 Majeed K. Abed, Storage Technology Partners Ii (Through Stc Optical Disk Development Corporation, Managing General Partner) filed Critical Majeed K. Abed
Application granted granted Critical
Publication of CA1213979A publication Critical patent/CA1213979A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in only
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08582—Sled-type positioners
    • G11B7/08588—Sled-type positioners with position sensing by means of an auxiliary system using an external scale

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
CA000455104A 1983-05-27 1984-05-25 Coarse position error signal generation in an optical disk storage system employing course servo tracks Expired CA1213979A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49911883A 1983-05-27 1983-05-27
US499,118 1983-05-27

Publications (1)

Publication Number Publication Date
CA1213979A true CA1213979A (en) 1986-11-12

Family

ID=23983901

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000455104A Expired CA1213979A (en) 1983-05-27 1984-05-25 Coarse position error signal generation in an optical disk storage system employing course servo tracks

Country Status (3)

Country Link
EP (1) EP0145756A1 (de)
CA (1) CA1213979A (de)
WO (1) WO1984004844A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553054A (en) * 1995-02-06 1996-09-03 International Business Machines Corporation Coarse position sensor, and method for locating same, in an optical disk drive

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL187413C (nl) * 1978-03-16 1991-09-16 Philips Nv Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager.
US4290122A (en) * 1979-05-14 1981-09-15 Xerox Corporation Self-synchronizing clock source for optical memories
JPS5753838A (en) * 1980-09-17 1982-03-31 Olympus Optical Co Ltd Beam position detecting system for recorder and reproducer of optical disk
NL8200208A (nl) * 1982-01-21 1983-08-16 Philips Nv Inrichting voor het uitlezen van een schijfvormige registratiedrager.

Also Published As

Publication number Publication date
WO1984004844A1 (en) 1984-12-06
EP0145756A1 (de) 1985-06-26

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