EP0145756A1 - Erzeugung eines groben spurlagefehlersignals in einem optischen, scheibenförmigen aufzeichnungssystem mittels grober nachführungsspuren - Google Patents

Erzeugung eines groben spurlagefehlersignals in einem optischen, scheibenförmigen aufzeichnungssystem mittels grober nachführungsspuren

Info

Publication number
EP0145756A1
EP0145756A1 EP19840902391 EP84902391A EP0145756A1 EP 0145756 A1 EP0145756 A1 EP 0145756A1 EP 19840902391 EP19840902391 EP 19840902391 EP 84902391 A EP84902391 A EP 84902391A EP 0145756 A1 EP0145756 A1 EP 0145756A1
Authority
EP
European Patent Office
Prior art keywords
signal
collection surface
amplitude
signals
coarse
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.)
Withdrawn
Application number
EP19840902391
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
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
Publication of EP0145756A1 publication Critical patent/EP0145756A1/de
Withdrawn legal-status Critical Current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)
EP19840902391 1983-05-27 1984-05-24 Erzeugung eines groben spurlagefehlersignals in einem optischen, scheibenförmigen aufzeichnungssystem mittels grober nachführungsspuren Withdrawn EP0145756A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49911883A 1983-05-27 1983-05-27
US499118 1983-05-27

Publications (1)

Publication Number Publication Date
EP0145756A1 true EP0145756A1 (de) 1985-06-26

Family

ID=23983901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840902391 Withdrawn EP0145756A1 (de) 1983-05-27 1984-05-24 Erzeugung eines groben spurlagefehlersignals in einem optischen, scheibenförmigen aufzeichnungssystem mittels grober nachführungsspuren

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.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8404844A1 *

Also Published As

Publication number Publication date
CA1213979A (en) 1986-11-12
WO1984004844A1 (en) 1984-12-06

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850708

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ABED, MAJEED, K.