AU4431700A - Device for preventing digital data from being copied, copying preventing method,and recorded medium on which data subjected to copying prevention is recorded - Google Patents

Device for preventing digital data from being copied, copying preventing method,and recorded medium on which data subjected to copying prevention is recorded

Info

Publication number
AU4431700A
AU4431700A AU44317/00A AU4431700A AU4431700A AU 4431700 A AU4431700 A AU 4431700A AU 44317/00 A AU44317/00 A AU 44317/00A AU 4431700 A AU4431700 A AU 4431700A AU 4431700 A AU4431700 A AU 4431700A
Authority
AU
Australia
Prior art keywords
copying
recorded
preventing
copied
digital data
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.)
Abandoned
Application number
AU44317/00A
Inventor
Yasutaka Sato
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.)
EMDES Co Ltd
Original Assignee
EMDES CO 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 EMDES CO Ltd filed Critical EMDES CO Ltd
Publication of AU4431700A publication Critical patent/AU4431700A/en
Abandoned 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
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0092—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
    • 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
    • G11B20/00007—Time or data compression or expansion
    • 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
    • G11B20/0092—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors
    • G11B20/00927—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which are linked to media defects or read/write errors wherein said defects or errors are generated on purpose, e.g. intended scratches
    • 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
    • G11B20/10527—Audio or video recording; Data buffering arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
AU44317/00A 2000-05-11 2000-05-11 Device for preventing digital data from being copied, copying preventing method,and recorded medium on which data subjected to copying prevention is recorded Abandoned AU4431700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/003032 WO2001086653A1 (en) 2000-05-11 2000-05-11 Device for preventing digital data from being copied, copying preventing method, and recorded medium on which data subjected to copying prevention is recorded

Publications (1)

Publication Number Publication Date
AU4431700A true AU4431700A (en) 2001-11-20

Family

ID=11736015

Family Applications (1)

Application Number Title Priority Date Filing Date
AU44317/00A Abandoned AU4431700A (en) 2000-05-11 2000-05-11 Device for preventing digital data from being copied, copying preventing method,and recorded medium on which data subjected to copying prevention is recorded

Country Status (2)

Country Link
AU (1) AU4431700A (en)
WO (1) WO2001086653A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10162501A (en) * 1996-12-03 1998-06-19 Sony Corp Audio information transmission method, audio information transmission apparatus, and audio recording apparatus
JPH10289522A (en) * 1997-04-11 1998-10-27 Nippon Telegr & Teleph Corp <Ntt> Digital video device
JPH11232777A (en) * 1998-02-16 1999-08-27 Ic:Kk Preventing method for data copy

Also Published As

Publication number Publication date
WO2001086653A1 (en) 2001-11-15

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase