JPS5436906A - Information reproducer - Google Patents

Information reproducer

Info

Publication number
JPS5436906A
JPS5436906A JP10270977A JP10270977A JPS5436906A JP S5436906 A JPS5436906 A JP S5436906A JP 10270977 A JP10270977 A JP 10270977A JP 10270977 A JP10270977 A JP 10270977A JP S5436906 A JPS5436906 A JP S5436906A
Authority
JP
Japan
Prior art keywords
information reproducer
reproducer
spacing
information
pefrorm
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.)
Granted
Application number
JP10270977A
Other languages
Japanese (ja)
Other versions
JPS6220611B2 (en
Inventor
Takeshi Maeda
Moriji Izumida
Masatoshi Otake
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10270977A priority Critical patent/JPS5436906A/en
Publication of JPS5436906A publication Critical patent/JPS5436906A/en
Publication of JPS6220611B2 publication Critical patent/JPS6220611B2/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

  • Optical Recording Or Reproduction (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

PURPOSE:To pefrorm access of rotary discs at high speed and high accuracy by using a scale of the pitch spacing integer times the track spacing.
JP10270977A 1977-08-29 1977-08-29 Information reproducer Granted JPS5436906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10270977A JPS5436906A (en) 1977-08-29 1977-08-29 Information reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10270977A JPS5436906A (en) 1977-08-29 1977-08-29 Information reproducer

Publications (2)

Publication Number Publication Date
JPS5436906A true JPS5436906A (en) 1979-03-19
JPS6220611B2 JPS6220611B2 (en) 1987-05-08

Family

ID=14334786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10270977A Granted JPS5436906A (en) 1977-08-29 1977-08-29 Information reproducer

Country Status (1)

Country Link
JP (1) JPS5436906A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760540A (en) * 1980-09-30 1982-04-12 Fujitsu Ltd Track accessing system for optical disc
JPS57181436A (en) * 1981-05-01 1982-11-08 Toshiba Corp Optical disc device
JPS5877071A (en) * 1981-10-31 1983-05-10 Toshiba Corp Disk device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5760540A (en) * 1980-09-30 1982-04-12 Fujitsu Ltd Track accessing system for optical disc
JPS57181436A (en) * 1981-05-01 1982-11-08 Toshiba Corp Optical disc device
JPS6223371B2 (en) * 1981-05-01 1987-05-22 Tokyo Shibaura Electric Co
JPS5877071A (en) * 1981-10-31 1983-05-10 Toshiba Corp Disk device
JPH0135429B2 (en) * 1981-10-31 1989-07-25 Tokyo Shibaura Electric Co

Also Published As

Publication number Publication date
JPS6220611B2 (en) 1987-05-08

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