KR960011962A - 광디스크, 광디스크 점검장치 및 광디스크에 정보를 기록하는 장치 - Google Patents

광디스크, 광디스크 점검장치 및 광디스크에 정보를 기록하는 장치 Download PDF

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Publication number
KR960011962A
KR960011962A KR1019950031349A KR19950031349A KR960011962A KR 960011962 A KR960011962 A KR 960011962A KR 1019950031349 A KR1019950031349 A KR 1019950031349A KR 19950031349 A KR19950031349 A KR 19950031349A KR 960011962 A KR960011962 A KR 960011962A
Authority
KR
South Korea
Prior art keywords
optical disc
checker
recording information
disc
optical
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
KR1019950031349A
Other languages
English (en)
Korean (ko)
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 JP6254804A external-priority patent/JP3061098B2/ja
Application filed filed Critical
Publication of KR960011962A publication Critical patent/KR960011962A/ko
Ceased legal-status Critical Current

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
    • 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
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
    • G11B20/00594—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium wherein the shape of recording marks is altered, e.g. the depth, width, or length of pits
    • 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
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • 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
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
    • 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
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
    • G11B20/00601—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium wherein properties of tracks are altered, e.g., by changing the wobble pattern or the track pitch, or by adding interruptions or eccentricity
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Optical Recording Or Reproduction (AREA)
KR1019950031349A 1994-09-22 1995-09-22 광디스크, 광디스크 점검장치 및 광디스크에 정보를 기록하는 장치 Ceased KR960011962A (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6254804A JP3061098B2 (ja) 1994-02-10 1994-09-22 光ディスク，光ディスク再生装置，及び光ディスク記録方法

Publications (1)

Publication Number Publication Date
KR960011962A true KR960011962A (ko) 1996-04-20

Family

ID=17270127

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950031349A Ceased KR960011962A (ko) 1994-09-22 1995-09-22 광디스크, 광디스크 점검장치 및 광디스크에 정보를 기록하는 장치

Country Status (6)

Country Link
US (1) US5572507A (enExample)
EP (1) EP0703576A1 (enExample)
KR (1) KR960011962A (enExample)
CN (1) CN1142663A (enExample)
MY (1) MY113315A (enExample)
TW (1) TW309612B (enExample)

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US7162636B2 (en) 1998-06-22 2007-01-09 Semtek Innovative Solutions, Inc. Method and apparatus for securing and authenticating encoded data and documents containing such data
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UA67759C2 (uk) * 1998-10-05 2004-07-15 Конінклійке Філіпс Електронікс Н.В. Система захисту записаної інформації від копіювання
GB9821808D0 (en) * 1998-10-06 1998-12-02 Dilla Limited C Method and apparatus for determining the provenance of a data carrying disc
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JP2001067792A (ja) 1999-08-30 2001-03-16 Sony Corp 記録装置および方法、並びに記録媒体
DE60118105T2 (de) * 2000-01-14 2006-08-31 Pioneer Corp. Beschreibbare optische Platte und Aufzeichnungsverfahren
US7805764B1 (en) * 2000-03-31 2010-09-28 Doug Carson & Associates, Inc. Sequencing data blocks to provide hidden data on a recording medium
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JP3922424B2 (ja) * 2000-07-25 2007-05-30 パイオニア株式会社 光学式記録媒体、光学式記録媒体製造装置及び光学式記録媒体製造方法
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DK1344212T3 (da) 2000-12-14 2008-12-08 Ecd Systems Inc Fremgangsmåde til bestemmelse af autenticiteten af et optisk registreringsmedium og optisk registreringsmedium
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KR100952949B1 (ko) 2003-01-24 2010-04-15 엘지전자 주식회사 고밀도 광디스크의 복사 방지 정보 관리방법
KR101051000B1 (ko) * 2003-02-19 2011-07-26 엘지전자 주식회사 고밀도 광디스크와, 그에 따른 불법 복제 판별방법
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Also Published As

Publication number Publication date
CN1142663A (zh) 1997-02-12
TW309612B (enExample) 1997-07-01
EP0703576A1 (en) 1996-03-27
MY113315A (en) 2002-01-31
US5572507A (en) 1996-11-05

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A201 Request for examination
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Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19950922

PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19950922

Comment text: Request for Examination of Application

PG1501 Laying open of application
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Comment text: Notification of reason for refusal

Patent event date: 19981230

Patent event code: PE09021S01D

E601 Decision to refuse application
PE0601 Decision on rejection of patent

Patent event date: 19990714

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Patent event code: PE06012S01D

Patent event date: 19981230

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I