JPH0361255B2 - - Google Patents

Info

Publication number
JPH0361255B2
JPH0361255B2 JP57051234A JP5123482A JPH0361255B2 JP H0361255 B2 JPH0361255 B2 JP H0361255B2 JP 57051234 A JP57051234 A JP 57051234A JP 5123482 A JP5123482 A JP 5123482A JP H0361255 B2 JPH0361255 B2 JP H0361255B2
Authority
JP
Japan
Prior art keywords
signal
output
laser beam
time
light receiving
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.)
Expired - Lifetime
Application number
JP57051234A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58169350A (ja
Inventor
Takeshi Maeda
Masahiro Takasago
Yoshito Tsunoda
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 JP57051234A priority Critical patent/JPS58169350A/ja
Priority to US06/479,894 priority patent/US4550394A/en
Priority to DE8383103169T priority patent/DE3369220D1/de
Priority to EP83103169A priority patent/EP0090420B1/en
Publication of JPS58169350A publication Critical patent/JPS58169350A/ja
Publication of JPH0361255B2 publication Critical patent/JPH0361255B2/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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • 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
    • G11B7/0903—Multi-beam tracking systems

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP57051234A 1982-03-31 1982-03-31 光学的情報記録再生装置 Granted JPS58169350A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP57051234A JPS58169350A (ja) 1982-03-31 1982-03-31 光学的情報記録再生装置
US06/479,894 US4550394A (en) 1982-03-31 1983-03-29 System for optically recording information
DE8383103169T DE3369220D1 (en) 1982-03-31 1983-03-30 Device for optically recording and reading of information
EP83103169A EP0090420B1 (en) 1982-03-31 1983-03-30 Device for optically recording and reading of information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57051234A JPS58169350A (ja) 1982-03-31 1982-03-31 光学的情報記録再生装置

Publications (2)

Publication Number Publication Date
JPS58169350A JPS58169350A (ja) 1983-10-05
JPH0361255B2 true JPH0361255B2 (en]) 1991-09-19

Family

ID=12881250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57051234A Granted JPS58169350A (ja) 1982-03-31 1982-03-31 光学的情報記録再生装置

Country Status (4)

Country Link
US (1) US4550394A (en])
EP (1) EP0090420B1 (en])
JP (1) JPS58169350A (en])
DE (1) DE3369220D1 (en])

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8303564A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager.
JPS60219679A (ja) * 1984-04-13 1985-11-02 Mitsubishi Electric Corp 情報記録装置
JPS60261043A (ja) * 1984-06-07 1985-12-24 Victor Co Of Japan Ltd 情報記録媒体円盤
JPH01263946A (ja) * 1988-04-14 1989-10-20 Canon Inc 光学式情報記録再生装置のトラッキング機構
US5216643A (en) * 1988-09-20 1993-06-01 Hewlett-Packard Company Rotary arm and optical head for a magneto-optic disk drive
JPH0567375A (ja) * 1990-08-07 1993-03-19 Ricoh Co Ltd 記録再生タイミング発生装置
JP3887480B2 (ja) * 1998-03-20 2007-02-28 パイオニア株式会社 プリピット検出装置
CN1689097A (zh) * 2002-10-14 2005-10-26 皇家飞利浦电子股份有限公司 记录和/或再现信息的方法和装置
US9236852B2 (en) * 2012-02-01 2016-01-12 Microchip Technology Incorporated Input capture peripheral with gating logic

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7315419A (nl) * 1973-11-10 1975-05-13 Philips Nv Inrichting voor het uitlezen van een schijfvor- mige registratiedrager.
US4011905A (en) * 1975-12-18 1977-03-15 Borg-Warner Corporation Heat exchangers with integral surge tanks
JPS52141608A (en) * 1976-05-20 1977-11-26 Sony Corp Information detector
JPS54146613A (en) * 1978-05-10 1979-11-16 Hitachi Ltd Optical head
US4243850A (en) * 1979-02-07 1981-01-06 Eastman Kodak Company Apparatus for tracking a record track on a video disc
JPS5642248A (en) * 1979-09-14 1981-04-20 Canon Inc Light source device
JPS6048809B2 (ja) * 1979-10-16 1985-10-29 パイオニアビデオ株式会社 情報読取装置におけるトラッキングサ−ボ引込装置
JPS626580Y2 (en]) * 1979-11-17 1987-02-16
NL8001974A (nl) * 1980-04-03 1981-11-02 Philips Nv Spoorvolginrichting.
JPS5753832A (en) * 1980-09-12 1982-03-31 Olympus Optical Co Ltd Method and device for recording of optical information
US4414655A (en) * 1981-03-31 1983-11-08 Discovision Associates Scanning beam control system
US4443870A (en) * 1981-10-15 1984-04-17 Burroughs Corporation Optical memory system providing track following

Also Published As

Publication number Publication date
JPS58169350A (ja) 1983-10-05
EP0090420B1 (en) 1987-01-14
US4550394A (en) 1985-10-29
DE3369220D1 (en) 1987-02-19
EP0090420A1 (en) 1983-10-05

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