JPS59112442A - 光学的再生装置 - Google Patents

光学的再生装置

Info

Publication number
JPS59112442A
JPS59112442A JP22020883A JP22020883A JPS59112442A JP S59112442 A JPS59112442 A JP S59112442A JP 22020883 A JP22020883 A JP 22020883A JP 22020883 A JP22020883 A JP 22020883A JP S59112442 A JPS59112442 A JP S59112442A
Authority
JP
Japan
Prior art keywords
position detection
beam position
dropout
detection output
output
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
JP22020883A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6231409B2 (enrdf_load_stackoverflow
Inventor
Shoji Itotani
糸谷　昭治
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.)
Teac Corp
Mitsubishi Electric Corp
Original Assignee
Teac Corp
Mitsubishi Electric 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 Teac Corp, Mitsubishi Electric Corp filed Critical Teac Corp
Priority to JP22020883A priority Critical patent/JPS59112442A/ja
Publication of JPS59112442A publication Critical patent/JPS59112442A/ja
Publication of JPS6231409B2 publication Critical patent/JPS6231409B2/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
    • G11B7/0948—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 specially adapted for detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP22020883A 1983-11-21 1983-11-21 光学的再生装置 Granted JPS59112442A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22020883A JPS59112442A (ja) 1983-11-21 1983-11-21 光学的再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22020883A JPS59112442A (ja) 1983-11-21 1983-11-21 光学的再生装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP51065620A Division JPS588054B2 (ja) 1976-06-07 1976-06-07 光学的再生装置

Publications (2)

Publication Number Publication Date
JPS59112442A true JPS59112442A (ja) 1984-06-28
JPS6231409B2 JPS6231409B2 (enrdf_load_stackoverflow) 1987-07-08

Family

ID=16747576

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22020883A Granted JPS59112442A (ja) 1983-11-21 1983-11-21 光学的再生装置

Country Status (1)

Country Link
JP (1) JPS59112442A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06144099A (ja) * 1992-11-05 1994-05-24 Japan Airlines Co Ltd トレーラ
US5412630A (en) * 1985-09-27 1995-05-02 Sharp Kabushiki Kaisha Tracking system for optical disc memory using tracking error signals from main beam and auxiliary beams

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507891U (enrdf_load_stackoverflow) * 1973-05-18 1975-01-27
US3864741A (en) * 1973-06-28 1975-02-04 Ibm Servo channel equalization network
JPS512981A (enrdf_load_stackoverflow) * 1974-06-24 1976-01-12 Gen Electric

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507891U (enrdf_load_stackoverflow) * 1973-05-18 1975-01-27
US3864741A (en) * 1973-06-28 1975-02-04 Ibm Servo channel equalization network
JPS512981A (enrdf_load_stackoverflow) * 1974-06-24 1976-01-12 Gen Electric

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5412630A (en) * 1985-09-27 1995-05-02 Sharp Kabushiki Kaisha Tracking system for optical disc memory using tracking error signals from main beam and auxiliary beams
JPH06144099A (ja) * 1992-11-05 1994-05-24 Japan Airlines Co Ltd トレーラ

Also Published As

Publication number Publication date
JPS6231409B2 (enrdf_load_stackoverflow) 1987-07-08

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