JPS51136402A - Tracking method for optical information recording equipment - Google Patents

Tracking method for optical information recording equipment

Info

Publication number
JPS51136402A
JPS51136402A JP50059571A JP5957175A JPS51136402A JP S51136402 A JPS51136402 A JP S51136402A JP 50059571 A JP50059571 A JP 50059571A JP 5957175 A JP5957175 A JP 5957175A JP S51136402 A JPS51136402 A JP S51136402A
Authority
JP
Japan
Prior art keywords
information recording
optical information
tracking method
recording equipment
beam spot
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
JP50059571A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5415485B2 (enExample
Inventor
Kenjiro Goto
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.)
Mansei Kogyo KK
Original Assignee
Mansei Kogyo KK
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 Mansei Kogyo KK filed Critical Mansei Kogyo KK
Priority to JP50059571A priority Critical patent/JPS51136402A/ja
Publication of JPS51136402A publication Critical patent/JPS51136402A/ja
Publication of JPS5415485B2 publication Critical patent/JPS5415485B2/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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP50059571A 1975-05-21 1975-05-21 Tracking method for optical information recording equipment Granted JPS51136402A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50059571A JPS51136402A (en) 1975-05-21 1975-05-21 Tracking method for optical information recording equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50059571A JPS51136402A (en) 1975-05-21 1975-05-21 Tracking method for optical information recording equipment

Publications (2)

Publication Number Publication Date
JPS51136402A true JPS51136402A (en) 1976-11-25
JPS5415485B2 JPS5415485B2 (enExample) 1979-06-15

Family

ID=13117046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50059571A Granted JPS51136402A (en) 1975-05-21 1975-05-21 Tracking method for optical information recording equipment

Country Status (1)

Country Link
JP (1) JPS51136402A (enExample)

Also Published As

Publication number Publication date
JPS5415485B2 (enExample) 1979-06-15

Similar Documents

Publication Publication Date Title
JPS51144203A (en) Political device for information reproduction
JPS5342028A (en) Laser beam recording method
JPS5266405A (en) Optical recording system of information recording discs
NZ181001A (en) Optical record playbach:path attenuator reduces feedback effect on laser
JPS53133039A (en) Recording method
JPS51136402A (en) Tracking method for optical information recording equipment
JPS52134704A (en) Optical recorder/reproducer unit
JPS5320904A (en) Optical information reader
JPS5348704A (en) Optical signal regenerator
JPS536516A (en) Optical recording and reproducing unit
GB2069711B (en) Recording by laser beam
JPS53100203A (en) Optical reproducer
JPS51140702A (en) Semiconductor laser pickup apparatus
JPS5439103A (en) Medium locator for fucus servo
JPS53129604A (en) Optical recorder-reproducer
JPS5250649A (en) Optical information record reproduction device
JPS5276003A (en) Optical information recording system
JPS52143001A (en) Optical regeneration method
JPS533202A (en) Information reproducer
JPS5280803A (en) Automatic focusing device
JPS51136229A (en) Information reproducing
JPS5247631A (en) Recording device of laser information
JPS52147404A (en) Signal regenerator
JPS5345204A (en) Tracking method for disk-type recording medium
JPS5269307A (en) Information reproduction device