JPH0411947B2 - - Google Patents

Info

Publication number
JPH0411947B2
JPH0411947B2 JP14809382A JP14809382A JPH0411947B2 JP H0411947 B2 JPH0411947 B2 JP H0411947B2 JP 14809382 A JP14809382 A JP 14809382A JP 14809382 A JP14809382 A JP 14809382A JP H0411947 B2 JPH0411947 B2 JP H0411947B2
Authority
JP
Japan
Prior art keywords
disk
signal
track
level
reading
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
JP14809382A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5938975A (ja
Inventor
Seiji Tanizawa
Akihiko Hiramatsu
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP14809382A priority Critical patent/JPS5938975A/ja
Publication of JPS5938975A publication Critical patent/JPS5938975A/ja
Publication of JPH0411947B2 publication Critical patent/JPH0411947B2/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
    • 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 Head For Track Selection And Changing (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
JP14809382A 1982-08-25 1982-08-25 デイスク再生装置 Granted JPS5938975A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14809382A JPS5938975A (ja) 1982-08-25 1982-08-25 デイスク再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14809382A JPS5938975A (ja) 1982-08-25 1982-08-25 デイスク再生装置

Publications (2)

Publication Number Publication Date
JPS5938975A JPS5938975A (ja) 1984-03-03
JPH0411947B2 true JPH0411947B2 (zh) 1992-03-03

Family

ID=15445077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14809382A Granted JPS5938975A (ja) 1982-08-25 1982-08-25 デイスク再生装置

Country Status (1)

Country Link
JP (1) JPS5938975A (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62273657A (ja) * 1986-05-21 1987-11-27 Canon Inc 記録及び／又は再生装置

Also Published As

Publication number Publication date
JPS5938975A (ja) 1984-03-03

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