JPS55139693A - Write system for optical recording medium - Google Patents

Write system for optical recording medium

Info

Publication number
JPS55139693A
JPS55139693A JP4710179A JP4710179A JPS55139693A JP S55139693 A JPS55139693 A JP S55139693A JP 4710179 A JP4710179 A JP 4710179A JP 4710179 A JP4710179 A JP 4710179A JP S55139693 A JPS55139693 A JP S55139693A
Authority
JP
Japan
Prior art keywords
pulse
width
write
recording medium
optical recording
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
JP4710179A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6238768B2 (enrdf_load_stackoverflow
Inventor
Koichi Ogawa
Shigeru Arai
Seiya Ogawa
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 JP4710179A priority Critical patent/JPS55139693A/ja
Publication of JPS55139693A publication Critical patent/JPS55139693A/ja
Publication of JPS6238768B2 publication Critical patent/JPS6238768B2/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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
JP4710179A 1979-04-17 1979-04-17 Write system for optical recording medium Granted JPS55139693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4710179A JPS55139693A (en) 1979-04-17 1979-04-17 Write system for optical recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4710179A JPS55139693A (en) 1979-04-17 1979-04-17 Write system for optical recording medium

Publications (2)

Publication Number Publication Date
JPS55139693A true JPS55139693A (en) 1980-10-31
JPS6238768B2 JPS6238768B2 (enrdf_load_stackoverflow) 1987-08-19

Family

ID=12765779

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4710179A Granted JPS55139693A (en) 1979-04-17 1979-04-17 Write system for optical recording medium

Country Status (1)

Country Link
JP (1) JPS55139693A (enrdf_load_stackoverflow)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5736439A (en) * 1980-08-13 1982-02-27 Matsushita Electric Ind Co Ltd Information signal recorder
JPS58182144A (ja) * 1982-04-16 1983-10-25 Hitachi Ltd 半導体レ−ザの駆動方法
JPS58208938A (ja) * 1982-05-31 1983-12-05 Sony Corp デイスク記録装置
JPS59116946A (ja) * 1982-11-12 1984-07-06 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン デ−タ記録装置
JPS60162768A (ja) * 1984-01-31 1985-08-24 Nippon Kogaku Kk <Nikon> 光磁気記録又は消去装置
JPS61131258A (ja) * 1984-11-29 1986-06-18 Seiko Epson Corp 光磁気記録装置
JPS61137225A (ja) * 1984-12-07 1986-06-24 Matsushita Electric Ind Co Ltd 信号記録装置
JPS61216126A (ja) * 1985-03-22 1986-09-25 Hitachi Ltd 光学的記録方法
JPS626443A (ja) * 1985-06-26 1987-01-13 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 熱誘導記録方法
JPS6339138A (ja) * 1986-08-01 1988-02-19 Matsushita Electric Ind Co Ltd レーザーパワー制御方法
JPS63153726A (ja) * 1986-10-29 1988-06-27 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ ２値情報信号を記録する方法及びその装置
JPS63160017A (ja) * 1986-12-23 1988-07-02 Yamaha Corp 光デイスク記録装置
JPS63175230A (ja) * 1987-01-16 1988-07-19 Nikon Corp 光媒体記録方法
JPH027231A (ja) * 1988-06-27 1990-01-11 Hitachi Ltd 情報記録装置
US5400313A (en) * 1992-11-09 1995-03-21 International Business Machines Corporation Optical data storage system and method with reduced heat buildup
JPH0864890A (ja) * 1995-08-04 1996-03-08 Hitachi Ltd 半導体レーザの駆動方法
US5530688A (en) * 1994-10-31 1996-06-25 International Business Machines Corporation Optical disk recording device using two modulated laser beams for recording information data
US5707727A (en) * 1991-04-17 1998-01-13 Sharp Kabushiki Kaisha Magneto-optical recording medium

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2205418B2 (en) 2008-04-14 2020-08-12 Keter Plastic Ltd. An artificial panel, a method for manufacturing same and furniture articles therefrom

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145908A (en) * 1974-10-17 1976-04-19 Victor Company Of Japan Johoshingono kogakutekikirokuhoshiki
JPS5323696A (en) * 1976-08-17 1978-03-04 Nat Rijiekutaazu Inc Gmbh Circuit for use in watching coin examining devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5145908A (en) * 1974-10-17 1976-04-19 Victor Company Of Japan Johoshingono kogakutekikirokuhoshiki
JPS5323696A (en) * 1976-08-17 1978-03-04 Nat Rijiekutaazu Inc Gmbh Circuit for use in watching coin examining devices

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5736439A (en) * 1980-08-13 1982-02-27 Matsushita Electric Ind Co Ltd Information signal recorder
JPS58182144A (ja) * 1982-04-16 1983-10-25 Hitachi Ltd 半導体レ−ザの駆動方法
JPS58208938A (ja) * 1982-05-31 1983-12-05 Sony Corp デイスク記録装置
JPS59116946A (ja) * 1982-11-12 1984-07-06 エヌ・ベ−・フイリツプス・フル−イランペンフアブリケン デ−タ記録装置
JPS60162768A (ja) * 1984-01-31 1985-08-24 Nippon Kogaku Kk <Nikon> 光磁気記録又は消去装置
JPS61131258A (ja) * 1984-11-29 1986-06-18 Seiko Epson Corp 光磁気記録装置
JPS61137225A (ja) * 1984-12-07 1986-06-24 Matsushita Electric Ind Co Ltd 信号記録装置
JPS61216126A (ja) * 1985-03-22 1986-09-25 Hitachi Ltd 光学的記録方法
JPS626443A (ja) * 1985-06-26 1987-01-13 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 熱誘導記録方法
JPS6339138A (ja) * 1986-08-01 1988-02-19 Matsushita Electric Ind Co Ltd レーザーパワー制御方法
JPS63153726A (ja) * 1986-10-29 1988-06-27 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ ２値情報信号を記録する方法及びその装置
JPS63160017A (ja) * 1986-12-23 1988-07-02 Yamaha Corp 光デイスク記録装置
JPS63175230A (ja) * 1987-01-16 1988-07-19 Nikon Corp 光媒体記録方法
JPH027231A (ja) * 1988-06-27 1990-01-11 Hitachi Ltd 情報記録装置
US5707727A (en) * 1991-04-17 1998-01-13 Sharp Kabushiki Kaisha Magneto-optical recording medium
US5400313A (en) * 1992-11-09 1995-03-21 International Business Machines Corporation Optical data storage system and method with reduced heat buildup
US5530688A (en) * 1994-10-31 1996-06-25 International Business Machines Corporation Optical disk recording device using two modulated laser beams for recording information data
JPH0864890A (ja) * 1995-08-04 1996-03-08 Hitachi Ltd 半導体レーザの駆動方法

Also Published As

Publication number Publication date
JPS6238768B2 (enrdf_load_stackoverflow) 1987-08-19

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