NL7909217A - Inrichting voor optische gegevensregistratie. - Google Patents

Inrichting voor optische gegevensregistratie. Download PDF

Info

Publication number
NL7909217A
NL7909217A NL7909217A NL7909217A NL7909217A NL 7909217 A NL7909217 A NL 7909217A NL 7909217 A NL7909217 A NL 7909217A NL 7909217 A NL7909217 A NL 7909217A NL 7909217 A NL7909217 A NL 7909217A
Authority
NL
Netherlands
Prior art keywords
signal
data
recording
detecting
light
Prior art date
Application number
NL7909217A
Other languages
English (en)
Dutch (nl)
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
Priority claimed from JP53159840A external-priority patent/JPS5935090B2/ja
Priority claimed from JP14133979A external-priority patent/JPS5665339A/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of NL7909217A publication Critical patent/NL7909217A/nl

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1806—Pulse code modulation systems for audio signals
    • G11B20/1813—Pulse code modulation systems for audio signals by adding special bits or symbols to the coded information
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • 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
    • G11B7/005—Reproducing
    • G11B7/0052—Reproducing involving reflectivity, absorption or colour changes

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Recording Or Reproduction (AREA)
NL7909217A 1978-12-27 1979-12-20 Inrichting voor optische gegevensregistratie. NL7909217A (nl)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP53159840A JPS5935090B2 (ja) 1978-12-27 1978-12-27 情報記録装置
JP15984078 1978-12-27
JP14133979 1979-11-02
JP14133979A JPS5665339A (en) 1979-11-02 1979-11-02 Information recorder

Publications (1)

Publication Number Publication Date
NL7909217A true NL7909217A (nl) 1980-07-01

Family

ID=26473593

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7909217A NL7909217A (nl) 1978-12-27 1979-12-20 Inrichting voor optische gegevensregistratie.

Country Status (6)

Country Link
US (1) US4308612A (de)
CA (1) CA1145845A (de)
DE (1) DE2951215C2 (de)
FR (1) FR2445580B1 (de)
GB (1) GB2040539B (de)
NL (1) NL7909217A (de)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8004598A (nl) * 1980-08-14 1982-03-16 Philips Nv Werkwijze voor het inschrijven in, respektievelijk uitlezen uit, een registratiedragerlichaam, van sektorsgewijs georganiseerde informatie, en inrichting daarvoor.
US4497050A (en) * 1981-08-03 1985-01-29 U.S. Philips Corporation Method and device for writing a data block into a record carrier body
JPS5862630A (ja) * 1981-10-08 1983-04-14 Sony Corp 光変調装置
US4546462A (en) * 1981-12-04 1985-10-08 Matsushita Electric Industrial Co., Ltd. Optical data recording and reproducing apparatus
JPS58121148A (ja) * 1982-01-11 1983-07-19 Olympus Optical Co Ltd 光学的情報記録再生装置
US4488277A (en) * 1982-02-10 1984-12-11 North American Philips Corporation Control system for an optical data recording apparatus
JPS58158038A (ja) * 1982-03-15 1983-09-20 Toshiba Corp 光デイスク装置
JPS58158039A (ja) * 1982-03-15 1983-09-20 Toshiba Corp 光ディスクの記録再生装置
JPS58181163A (ja) * 1982-04-16 1983-10-22 Hitachi Ltd 記憶装置の制御方式
US4648085A (en) * 1983-05-12 1987-03-03 Nec Corporation Optical information recording and reading apparatus with error correction
JPS6050666A (ja) * 1983-08-29 1985-03-20 Hitachi Ltd 記録制御方式
WO1985001382A1 (en) * 1983-09-19 1985-03-28 Storage Technology Partners Ii Optically storing digital data
US4670869A (en) * 1984-01-03 1987-06-02 Magnetic Peripherals Inc. Switching laser beam apparatus with recombined beam for recording
US4882721A (en) * 1984-02-08 1989-11-21 Laser Magnetic Storage International Company Offset for protection against amorphous pips
EP0295759A3 (en) * 1984-02-08 1989-05-03 Laser Magnetic Storage International Company Apparatus for using differential data detection in write protection of an optical recorder
JPS60219679A (ja) * 1984-04-13 1985-11-02 Mitsubishi Electric Corp 情報記録装置
JPS6129421A (ja) * 1984-06-15 1986-02-10 Olympus Optical Co Ltd 光学式記録媒体の欠陥検出方法
JPS6145687A (ja) * 1984-08-09 1986-03-05 Fuji Photo Film Co Ltd 磁気記録方法
JPS61233468A (ja) * 1985-04-08 1986-10-17 Hitachi Ltd 回転型情報記録媒体への情報書込み制御方式
US5247505A (en) * 1985-04-17 1993-09-21 Canon Kabushiki Kaisha Information recording method for reciprocally recording and verifying information
JPS6267731A (ja) * 1985-09-20 1987-03-27 Fujitsu Ltd 光記録再生方法及び光記録再生装置
US5058093A (en) * 1986-01-27 1991-10-15 Matsushita Electric Industrial Co., Ltd. Signal level deviation detecting apparatus
US4910725A (en) * 1986-04-23 1990-03-20 Drexler Technology Corporation Optical recording method for data cards
JP2574258B2 (ja) * 1986-09-03 1997-01-22 松下電送 株式会社 交代記録方法
US4872154A (en) * 1986-09-22 1989-10-03 Canon Kabushiki Kaisha Method for recording indicia for indicating presence or absence of error in medium after error checking and apparatus therefor
KR910003039B1 (ko) * 1987-01-26 1991-05-17 가부시기가이샤 히다찌세이사꾸쇼 정보의 기록 재생 방법
JP2663436B2 (ja) * 1987-05-25 1997-10-15 ソニー株式会社 光ディスク記録装置
US4941139A (en) * 1988-09-02 1990-07-10 International Business Machines Corporation Checking media operations and recording during optical recording
US5321672A (en) * 1989-04-19 1994-06-14 Hitachi, Ltd. Method of an apparatus for magneto-optically recording information by changing the position or shape or controlling the diameter of reversed domains
DE69020419T2 (de) * 1989-04-28 1995-11-16 Toshiba Kawasaki Kk Aufzeichnungssystem für Informationen.
JP2809479B2 (ja) * 1990-05-29 1998-10-08 オリンパス光学工業株式会社 データ記録再生装置
US5181196A (en) * 1991-03-27 1993-01-19 Olympus Optical Co., Ltd. Erase mark detecting circuit for detecting an erase mark superimposed on data recorded on a sector of an optical recording medium
US5495466A (en) * 1994-01-10 1996-02-27 Eastman Kodak Company Write verification in an optical recording system by sensing mark formation while writing
US5646919A (en) * 1996-01-16 1997-07-08 Eastman Kodak Company Dynamic tracking control in an optical recording system by sensing mark formation
US5726965A (en) * 1996-02-29 1998-03-10 Eastman Kodak Company Intersymbol interference detection in an optical recording system using a reflected write signal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365706A (en) * 1964-04-15 1968-01-23 Gilbert W. King Photo-optical data storage and retrieval system employing error detection and error location identification components
US3696344A (en) * 1970-02-19 1972-10-03 Energy Conversion Devices Inc Optical mass memory employing amorphous thin films
FR2118217A5 (de) * 1970-12-14 1972-07-28 Cit Alcatel
US3731290A (en) * 1971-07-15 1973-05-01 Honeywell Inc Optical mass memory
CA1013854A (en) * 1973-02-20 1977-07-12 John S. Winslow Videodisc mastering system
US4145758A (en) * 1977-10-25 1979-03-20 Drexler Technology Corporation Error checking method and apparatus for digital data in optical recording systems

Also Published As

Publication number Publication date
CA1145845A (en) 1983-05-03
FR2445580A1 (fr) 1980-07-25
FR2445580B1 (fr) 1985-07-12
DE2951215C2 (de) 1983-12-15
GB2040539A (en) 1980-08-28
GB2040539B (en) 1983-01-26
DE2951215A1 (de) 1980-07-03
US4308612A (en) 1981-12-29

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
A85 Still pending on 85-01-01
BV The patent application has lapsed