JPS6243253B2 - - Google Patents

Info

Publication number
JPS6243253B2
JPS6243253B2 JP53104039A JP10403978A JPS6243253B2 JP S6243253 B2 JPS6243253 B2 JP S6243253B2 JP 53104039 A JP53104039 A JP 53104039A JP 10403978 A JP10403978 A JP 10403978A JP S6243253 B2 JPS6243253 B2 JP S6243253B2
Authority
JP
Japan
Prior art keywords
track
jumping
circuit
signal
record carrier
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
JP53104039A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5532240A (en
Inventor
Masahiro Deguchi
Mitsuro Morya
Noboru Wakami
Yasuhiro Goto
Kazuharu Shiragami
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10403978A priority Critical patent/JPS5532240A/ja
Publication of JPS5532240A publication Critical patent/JPS5532240A/ja
Priority to US06/380,343 priority patent/US4539664A/en
Publication of JPS6243253B2 publication Critical patent/JPS6243253B2/ja
Granted 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
    • 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
    • G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
    • G11B7/08541—Methods for track change, selection or preliminary positioning by moving the head involving track counting to determine position
    • 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
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • G11B7/08564—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP10403978A 1978-08-25 1978-08-25 Reproducing device Granted JPS5532240A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10403978A JPS5532240A (en) 1978-08-25 1978-08-25 Reproducing device
US06/380,343 US4539664A (en) 1978-08-25 1982-05-20 Control system for optical information signal reproduction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10403978A JPS5532240A (en) 1978-08-25 1978-08-25 Reproducing device

Publications (2)

Publication Number Publication Date
JPS5532240A JPS5532240A (en) 1980-03-06
JPS6243253B2 true JPS6243253B2 (fr) 1987-09-12

Family

ID=14370073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10403978A Granted JPS5532240A (en) 1978-08-25 1978-08-25 Reproducing device

Country Status (1)

Country Link
JP (1) JPS5532240A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57128938A (en) * 1981-02-04 1982-08-10 Yamagata Nippon Denki Kk Device for measuring characteristic of semiconductor
JPS60256927A (ja) * 1984-06-01 1985-12-18 Nippon Gakki Seizo Kk 光学式デイスク再生装置の読取り制御装置

Also Published As

Publication number Publication date
JPS5532240A (en) 1980-03-06

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