CA1213977A - Dispositif pour determiner la position angulaire d'un disque tournant a pistes de positionnement approximatif - Google Patents

Dispositif pour determiner la position angulaire d'un disque tournant a pistes de positionnement approximatif

Info

Publication number
CA1213977A
CA1213977A CA000448976A CA448976A CA1213977A CA 1213977 A CA1213977 A CA 1213977A CA 000448976 A CA000448976 A CA 000448976A CA 448976 A CA448976 A CA 448976A CA 1213977 A CA1213977 A CA 1213977A
Authority
CA
Canada
Prior art keywords
disk
coarse
sector
tracks
rotational position
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
CA000448976A
Other languages
English (en)
Inventor
Robert E. Dean
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
Robert E. Dean
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 Robert E. Dean, Storage Technology Partners Ii (Through Stc Optical Disk Development Corporation, Managing General Partner) filed Critical Robert E. Dean
Application granted granted Critical
Publication of CA1213977A publication Critical patent/CA1213977A/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
    • 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
    • G11B21/085—Access to indexed tracks or parts of continuous track on discs with track following of accessed part
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • 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

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
CA000448976A 1983-03-07 1984-03-06 Dispositif pour determiner la position angulaire d'un disque tournant a pistes de positionnement approximatif Expired CA1213977A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47243683A 1983-03-07 1983-03-07
US472,436 1983-03-07

Publications (1)

Publication Number Publication Date
CA1213977A true CA1213977A (fr) 1986-11-12

Family

ID=23875503

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000448976A Expired CA1213977A (fr) 1983-03-07 1984-03-06 Dispositif pour determiner la position angulaire d'un disque tournant a pistes de positionnement approximatif

Country Status (3)

Country Link
EP (1) EP0138947A1 (fr)
CA (1) CA1213977A (fr)
WO (1) WO1984003583A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0177737A3 (en) * 1984-08-28 1988-07-06 Fuji Photo Film Co., Ltd. Optical memory disk and track access therefor
JPS63237269A (ja) * 1987-03-25 1988-10-03 Sony Corp トラツクカウント装置
CN1114198C (zh) * 1995-04-28 2003-07-09 皇家菲利浦电子有限公司 用于存储和重放信息的系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7402077A (nl) * 1974-02-15 1975-08-19 Philips Nv Systeem bevattende een afspeelinrichting en een daarbij behorende langspeelplaat.
US4094013A (en) * 1975-05-22 1978-06-06 U.S. Philips Corporation Optical storage disk system with disk track guide sectors
GB1554641A (en) * 1975-08-11 1979-10-24 Casio Computer Co Ltd Data-recording device
US4133011A (en) * 1977-12-23 1979-01-02 International Business Machines Corporation Sampled data positioning system employing a model of the physical system for time optimal control
FR2452838A1 (fr) * 1979-03-30 1980-10-24 Thomson Csf Procede de diffusion d'un ensemble de signaux sonores, et appareil permettant de mettre en oeuvre ce procede
US4297737A (en) * 1979-12-26 1981-10-27 International Business Machines Corporation Sector servo with sync marks
NL8000123A (nl) * 1980-01-09 1981-08-03 Philips Nv Inrichting voor het schrijven van digitale informatie in een schijfvormige optisch uitleesbare registratiedrager.
US4390912A (en) * 1980-11-12 1983-06-28 Digital Equipment Corporation Transducer positioning system and data disk therefor
US4443870A (en) * 1981-10-15 1984-04-17 Burroughs Corporation Optical memory system providing track following

Also Published As

Publication number Publication date
EP0138947A1 (fr) 1985-05-02
WO1984003583A1 (fr) 1984-09-13

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Legal Events

Date Code Title Description
MKEX Expiry