CA1218148A - Generation de signaux d'erreur de position approximative modules en amplitude dans une memoire a disques optiques utilisant des pistes de positionnement asservi approximatif - Google Patents

Generation de signaux d'erreur de position approximative modules en amplitude dans une memoire a disques optiques utilisant des pistes de positionnement asservi approximatif

Info

Publication number
CA1218148A
CA1218148A CA000456409A CA456409A CA1218148A CA 1218148 A CA1218148 A CA 1218148A CA 000456409 A CA000456409 A CA 000456409A CA 456409 A CA456409 A CA 456409A CA 1218148 A CA1218148 A CA 1218148A
Authority
CA
Canada
Prior art keywords
signal
signals
collection surface
reflected
amplitude
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
CA000456409A
Other languages
English (en)
Inventor
Majeed K. Abed
Charles A. Farel
Paul M. Romano
Allan L. Samson
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
Storage Technology Partners II
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 Storage Technology Partners II filed Critical Storage Technology Partners II
Application granted granted Critical
Publication of CA1218148A publication Critical patent/CA1218148A/fr
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
    • G11B7/0857—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)
  • Optical Recording Or Reproduction (AREA)
CA000456409A 1983-06-13 1984-06-12 Generation de signaux d'erreur de position approximative modules en amplitude dans une memoire a disques optiques utilisant des pistes de positionnement asservi approximatif Expired CA1218148A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50395583A 1983-06-13 1983-06-13
US503,955 1983-06-13

Publications (1)

Publication Number Publication Date
CA1218148A true CA1218148A (fr) 1987-02-17

Family

ID=24004225

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000456409A Expired CA1218148A (fr) 1983-06-13 1984-06-12 Generation de signaux d'erreur de position approximative modules en amplitude dans une memoire a disques optiques utilisant des pistes de positionnement asservi approximatif

Country Status (3)

Country Link
EP (1) EP0145755A1 (fr)
CA (1) CA1218148A (fr)
WO (1) WO1984004965A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5347388A (en) * 1989-12-01 1994-09-13 Scientific-Atlanta, Inc. Push-pull optical receiver having gain control
GB2251751A (en) * 1990-10-09 1992-07-15 Gaertner W W Res Position and orientation measurement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435232A (en) * 1966-03-03 1969-03-25 Hewlett Packard Co Beam position detector
JPS53148412A (en) * 1977-05-30 1978-12-25 Mitsubishi Electric Corp Optical recorder or reproducer
JPS5718033A (en) * 1980-07-04 1982-01-29 Victor Co Of Japan Ltd Reproducing device for optical information recording medium
US4556964A (en) * 1981-12-21 1985-12-03 Burroughs Corporation Technique for monitoring galvo angle
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
EP0145755A1 (fr) 1985-06-26
WO1984004965A1 (fr) 1984-12-20

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