AT199990T - System copy management system of an optical disk - Google Patents

System copy management system of an optical disk

Info

Publication number
AT199990T
AT199990T AT97114927T AT97114927T AT199990T AT 199990 T AT199990 T AT 199990T AT 97114927 T AT97114927 T AT 97114927T AT 97114927 T AT97114927 T AT 97114927T AT 199990 T AT199990 T AT 199990T
Authority
AT
Austria
Prior art keywords
system
optical disk
copy management
management system
system copy
Prior art date
Application number
AT97114927T
Other languages
German (de)
Inventor
Reinhard Blaukovitsch
Andreas Winter
Original Assignee
Sony Dadc Austria Ag
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 Dadc Austria Ag filed Critical Sony Dadc Austria Ag
Priority to EP97114927A priority Critical patent/EP0899733B1/en
Publication of AT199990T publication Critical patent/AT199990T/en

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00094Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • G11B20/00123Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers the record carrier being identified by recognising some of its unique characteristics, e.g. a unique defect pattern serving as a physical signature of the record carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00391Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in subcodes, e.g. in the Q subcode of a CD
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00615Circuits 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 logical format of the recording medium, e.g. the structure of sectors, blocks, or frames
    • G11B20/0063Circuits 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 logical format of the recording medium, e.g. the structure of sectors, blocks, or frames wherein the modification to the logical format mainly concerns management data, e.g., by changing the format of the TOC or the subcode
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0071Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a purchase action
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
AT97114927T 1997-08-28 1997-08-28 System copy management system of an optical disk AT199990T (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97114927A EP0899733B1 (en) 1997-08-28 1997-08-28 Optical disc copy management system

Publications (1)

Publication Number Publication Date
AT199990T true AT199990T (en) 2001-04-15

Family

ID=8227283

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97114927T AT199990T (en) 1997-08-28 1997-08-28 System copy management system of an optical disk

Country Status (14)

Country Link
US (1) US6535858B1 (en)
EP (1) EP0899733B1 (en)
JP (1) JPH11250512A (en)
KR (1) KR100583906B1 (en)
CN (1) CN1132175C (en)
AT (1) AT199990T (en)
AU (1) AU750499B2 (en)
BR (1) BR9806518B1 (en)
CA (1) CA2245232C (en)
DE (2) DE69704352D1 (en)
ES (1) ES2155230T3 (en)
RU (1) RU2229172C2 (en)
SG (1) SG71803A1 (en)
TW (1) TW374900B (en)

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Also Published As

Publication number Publication date
EP0899733B1 (en) 2001-03-21
KR100583906B1 (en) 2006-09-06
CN1219728A (en) 1999-06-16
BR9806518B1 (en) 2011-01-11
DE69704352D1 (en) 2001-04-26
JPH11250512A (en) 1999-09-17
DE69704352T2 (en) 2001-07-12
TW374900B (en) 1999-11-21
RU2229172C2 (en) 2004-05-20
AU8194998A (en) 1999-03-11
AU750499B2 (en) 2002-07-18
US6535858B1 (en) 2003-03-18
CN1132175C (en) 2003-12-24
EP0899733A1 (en) 1999-03-03
ES2155230T3 (en) 2001-05-01
CA2245232C (en) 2007-01-23
CA2245232A1 (en) 1999-02-28
BR9806518A (en) 2001-03-13
SG71803A1 (en) 2000-04-18

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