KR100630036B1 - 판독 방지제를 갖는 기계 판독가능한 광디스크 - Google Patents

판독 방지제를 갖는 기계 판독가능한 광디스크 Download PDF

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Publication number
KR100630036B1
KR100630036B1 KR1019997002168A KR19997002168A KR100630036B1 KR 100630036 B1 KR100630036 B1 KR 100630036B1 KR 1019997002168 A KR1019997002168 A KR 1019997002168A KR 19997002168 A KR19997002168 A KR 19997002168A KR 100630036 B1 KR100630036 B1 KR 100630036B1
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KR
South Korea
Prior art keywords
disc
reading
agent
optical
optical disc
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Expired - Fee Related
Application number
KR1019997002168A
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English (en)
Korean (ko)
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KR20000036132A (ko
Inventor
필립이. 롤하우스
존알. 포웰
에릭제이. 카알슨
다니엘제이. 엔트홀트
어빈씨. 윈클러
크리스토퍼제이. 마모
제임스알. 발렌티네
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키호테 코퍼레이션
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Application filed by 키호테 코퍼레이션 filed Critical 키호테 코퍼레이션
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    • 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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
    • 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
    • G11B20/00608—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 material that the record carrier is made of is altered, e.g. adding reactive dyes that alter the optical properties of a disc after prolonged exposure to light or air
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Testing Of Coins (AREA)
KR1019997002168A 1996-09-16 1997-09-15 판독 방지제를 갖는 기계 판독가능한 광디스크 Expired - Fee Related KR100630036B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US2639096P 1996-09-16 1996-09-16
US60/026,390 1996-09-16
US08/902,844 US6011772A (en) 1996-09-16 1997-07-30 Machine-readable optical disc with reading-inhibit agent
US8/902,844 1997-07-30
US08/902,844 1997-07-30

Publications (2)

Publication Number Publication Date
KR20000036132A KR20000036132A (ko) 2000-06-26
KR100630036B1 true KR100630036B1 (ko) 2006-09-27

Family

ID=26701179

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019997002168A Expired - Fee Related KR100630036B1 (ko) 1996-09-16 1997-09-15 판독 방지제를 갖는 기계 판독가능한 광디스크

Country Status (11)

Country Link
US (4) US6011772A (https=)
EP (1) EP0925581B1 (https=)
JP (1) JP4229983B2 (https=)
KR (1) KR100630036B1 (https=)
CN (1) CN1210691C (https=)
AT (1) ATE320654T1 (https=)
AU (1) AU4347697A (https=)
CA (1) CA2265744C (https=)
DE (1) DE69735493T2 (https=)
ES (1) ES2260799T3 (https=)
WO (1) WO1998011539A1 (https=)

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