JPS5774835A - Optical recording system - Google Patents

Optical recording system

Info

Publication number
JPS5774835A
JPS5774835A JP14896180A JP14896180A JPS5774835A JP S5774835 A JPS5774835 A JP S5774835A JP 14896180 A JP14896180 A JP 14896180A JP 14896180 A JP14896180 A JP 14896180A JP S5774835 A JPS5774835 A JP S5774835A
Authority
JP
Japan
Prior art keywords
metallic layer
recording
control
servo
instance
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.)
Pending
Application number
JP14896180A
Other languages
English (en)
Inventor
Yasuyuki Goto
Nagaaki Etsuno
Shigeru Arai
Hironori 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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP14896180A priority Critical patent/JPS5774835A/ja
Publication of JPS5774835A publication Critical patent/JPS5774835A/ja
Pending 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
    • G11B7/0901—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 for track following only

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP14896180A 1980-10-24 1980-10-24 Optical recording system Pending JPS5774835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14896180A JPS5774835A (en) 1980-10-24 1980-10-24 Optical recording system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14896180A JPS5774835A (en) 1980-10-24 1980-10-24 Optical recording system

Publications (1)

Publication Number Publication Date
JPS5774835A true JPS5774835A (en) 1982-05-11

Family

ID=15464525

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14896180A Pending JPS5774835A (en) 1980-10-24 1980-10-24 Optical recording system

Country Status (1)

Country Link
JP (1) JPS5774835A (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6122450A (ja) * 1984-07-10 1986-01-31 Matsushita Electric Ind Co Ltd 情報記録媒体とその原盤記録方法および記録再生方法
JPS61172228A (ja) * 1984-05-21 1986-08-02 Matsushita Electric Ind Co Ltd トラツキング制御装置
JPS62219247A (ja) * 1986-03-20 1987-09-26 Canon Inc 光記録媒体およびその光記録方法
US5272684A (en) * 1989-08-01 1993-12-21 Mitsubishi Denki Kabushiki Kaisha Information recording method and information recording apparatus for magneto-optic recording information medium
JPH08190738A (ja) * 1995-09-22 1996-07-23 Matsushita Electric Ind Co Ltd 情報記録媒体の原盤記録方法および記録再生方法
KR19990057754A (ko) * 1997-12-30 1999-07-15 윤종용 서보 정보를 갖는 하드 디스크 제작 방법

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61172228A (ja) * 1984-05-21 1986-08-02 Matsushita Electric Ind Co Ltd トラツキング制御装置
JPS6122450A (ja) * 1984-07-10 1986-01-31 Matsushita Electric Ind Co Ltd 情報記録媒体とその原盤記録方法および記録再生方法
JPS62219247A (ja) * 1986-03-20 1987-09-26 Canon Inc 光記録媒体およびその光記録方法
US5272684A (en) * 1989-08-01 1993-12-21 Mitsubishi Denki Kabushiki Kaisha Information recording method and information recording apparatus for magneto-optic recording information medium
JPH08190738A (ja) * 1995-09-22 1996-07-23 Matsushita Electric Ind Co Ltd 情報記録媒体の原盤記録方法および記録再生方法
KR19990057754A (ko) * 1997-12-30 1999-07-15 윤종용 서보 정보를 갖는 하드 디스크 제작 방법

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