AU558622B2 - Optical disk player dust and stain detector - Google Patents

Optical disk player dust and stain detector

Info

Publication number
AU558622B2
AU558622B2 AU87714/82A AU8771482A AU558622B2 AU 558622 B2 AU558622 B2 AU 558622B2 AU 87714/82 A AU87714/82 A AU 87714/82A AU 8771482 A AU8771482 A AU 8771482A AU 558622 B2 AU558622 B2 AU 558622B2
Authority
AU
Australia
Prior art keywords
optical disk
audio signal
digital audio
disk player
error correcting
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.)
Ceased
Application number
AU87714/82A
Other languages
English (en)
Other versions
AU8771482A (en
Inventor
Not Given Name
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of AU8771482A publication Critical patent/AU8771482A/en
Application granted granted Critical
Publication of AU558622B2 publication Critical patent/AU558622B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • 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
    • G11B20/1876—Interpolating methods
    • 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
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34—Indicating arrangements 
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Holo Graphy (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
AU87714/82A 1981-08-31 1982-08-25 Optical disk player dust and stain detector Ceased AU558622B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56136844A JPS5837847A (ja) 1981-08-31 1981-08-31 光学式デイスク再生装置
JP56-136844 1981-08-31

Publications (2)

Publication Number Publication Date
AU8771482A AU8771482A (en) 1983-03-10
AU558622B2 true AU558622B2 (en) 1987-02-05

Family

ID=15184820

Family Applications (1)

Application Number Title Priority Date Filing Date
AU87714/82A Ceased AU558622B2 (en) 1981-08-31 1982-08-25 Optical disk player dust and stain detector

Country Status (8)

Country Link
US (1) US4519058A (enExample)
EP (1) EP0073519B1 (enExample)
JP (1) JPS5837847A (enExample)
KR (1) KR840001363A (enExample)
AT (1) ATE38446T1 (enExample)
AU (1) AU558622B2 (enExample)
CA (1) CA1192306A (enExample)
DE (1) DE3279191D1 (enExample)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165207A (ja) * 1983-03-11 1984-09-18 Hitachi Ltd 情報記録方式
NL8303061A (nl) * 1983-09-02 1985-04-01 Philips Nv Inrichting voor het uitlezen van een optisch uitleesbare registratiedrager.
NL8303562A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager.
DE3341628A1 (de) * 1983-11-17 1985-05-30 Polygram Gmbh, 2000 Hamburg Geraeteanordnung zur fehlerermittlung bei plattenfoermigen informationstraegern
JPS60161428U (ja) * 1983-11-30 1985-10-26 日本エアー・フイルター株式会社 フイルタ−組立体
US5247505A (en) * 1985-04-17 1993-09-21 Canon Kabushiki Kaisha Information recording method for reciprocally recording and verifying information
JPH0756734B2 (ja) * 1985-05-27 1995-06-14 松下電器産業株式会社 情報記録再生装置
CA1320268C (en) * 1986-09-10 1993-07-13 Wataru Sakagami Information record medium having an area for recording information indicating logical erasure of data and method for recording information on the same
JPH0770173B2 (ja) * 1987-03-06 1995-07-31 松下電器産業株式会社 情報記録再生装置
WO1992022064A1 (de) * 1991-06-07 1992-12-10 Deutsche Thomson-Brandt Gmbh Fehlerartsignalisation optischer informationsträger
US5485444A (en) * 1991-06-07 1996-01-16 Deustsche Thomson-Brandt Gmbh Signalization of types of defects of an optical information carrier
NL9200397A (nl) * 1992-03-04 1993-10-01 Philips Nv Informatie-optekeninrichting.
US5812506A (en) * 1992-04-10 1998-09-22 Wea Manufacturing, Inc. System and methods for measuring and correcting for overshoot in a high frequency (HF) signal generated by a compact disc player during testing of a compact disc
JP3336581B2 (ja) * 1992-10-19 2002-10-21 富士写真フイルム株式会社 追記型光ディスクの媒体検査方法およびシステム
DE69427685T2 (de) * 1993-09-29 2002-04-25 Sony Corp., Tokio/Tokyo Verfahren und vorrichtung zur datenwiedergabe
EP1816645A1 (en) 2006-02-02 2007-08-08 Thomson Licensing S.A. Method for controlling the quality of storage media
CN101449329B (zh) * 2006-05-15 2011-06-08 皇家飞利浦电子股份有限公司 光盘读取设备及其方法
US7791994B2 (en) * 2008-05-29 2010-09-07 Mediatek Inc. Apparatus and method for demodulating input signal modulated from reference signal and data signal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3585619A (en) * 1969-01-14 1971-06-15 Mohawk Data Sciences Corp Magnetic tape readout system with means to generate artificial signals
DE2326898A1 (de) * 1973-05-25 1974-12-12 Polygram Gmbh Verfahren und schaltungsanordnung zur ermittlung und kompensation von stoerungen bei der optoelektrischen wiedergabe von auf einem plattenfoermigen informationstraeger aufgezeichneten audio- und/oder videosignalen
US4145758A (en) * 1977-10-25 1979-03-20 Drexler Technology Corporation Error checking method and apparatus for digital data in optical recording systems
DE2851822C2 (de) * 1978-11-30 1986-01-16 Polygram Gmbh, 2000 Hamburg Verfahren zur Fehlerbewertung bei auf rotierenden Informationsträgern in Spiralspuren eingespeicherten Signalen und Schaltungsanordnung zur Durchführung des Verfahrens
US4308557A (en) * 1979-10-12 1981-12-29 Rca Corporation Video disc system
US4309721A (en) * 1979-10-12 1982-01-05 Rca Corporation Error coding for video disc system

Also Published As

Publication number Publication date
KR840001363A (ko) 1984-04-30
JPS5837847A (ja) 1983-03-05
ATE38446T1 (de) 1988-11-15
AU8771482A (en) 1983-03-10
EP0073519A2 (en) 1983-03-09
EP0073519B1 (en) 1988-11-02
DE3279191D1 (en) 1988-12-08
JPH0353695B2 (enExample) 1991-08-15
EP0073519A3 (en) 1984-08-22
US4519058A (en) 1985-05-21
CA1192306A (en) 1985-08-20

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