ATE199990T1 - System zur kopierverwaltung einer optischen platte - Google Patents

System zur kopierverwaltung einer optischen platte

Info

Publication number
ATE199990T1
ATE199990T1 AT97114927T AT97114927T ATE199990T1 AT E199990 T1 ATE199990 T1 AT E199990T1 AT 97114927 T AT97114927 T AT 97114927T AT 97114927 T AT97114927 T AT 97114927T AT E199990 T1 ATE199990 T1 AT E199990T1
Authority
AT
Austria
Prior art keywords
optical record
record carrier
key
copy
data
Prior art date
Application number
AT97114927T
Other languages
English (en)
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
Application granted granted Critical
Publication of ATE199990T1 publication Critical patent/ATE199990T1/de

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
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits 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
    • G11B20/00253—Circuits 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
    • G11B20/00391—Circuits 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
    • 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
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • 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
    • G11B20/00094—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to authorised record carriers
    • G11B20/00123—Circuits 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
    • 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
    • G11B20/00615—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 logical format of the recording medium, e.g. the structure of sectors, blocks, or frames
    • G11B20/0063—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 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
    • 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
    • G11B20/0071—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a purchase action
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007—Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress
AT97114927T 1997-08-28 1997-08-28 System zur kopierverwaltung einer optischen platte ATE199990T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97114927A EP0899733B1 (de) 1997-08-28 1997-08-28 System zur Kopierverwaltung einer optischen Platte

Publications (1)

Publication Number Publication Date
ATE199990T1 true ATE199990T1 (de) 2001-04-15

Family

ID=8227283

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97114927T ATE199990T1 (de) 1997-08-28 1997-08-28 System zur kopierverwaltung einer optischen platte

Country Status (14)

Country Link
US (1) US6535858B1 (de)
EP (1) EP0899733B1 (de)
JP (1) JPH11250512A (de)
KR (1) KR100583906B1 (de)
CN (1) CN1132175C (de)
AT (1) ATE199990T1 (de)
AU (1) AU750499B2 (de)
BR (1) BR9806518B1 (de)
CA (1) CA2245232C (de)
DE (1) DE69704352T2 (de)
ES (1) ES2155230T3 (de)
RU (1) RU2229172C2 (de)
SG (1) SG71803A1 (de)
TW (1) TW374900B (de)

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Also Published As

Publication number Publication date
CA2245232A1 (en) 1999-02-28
EP0899733B1 (de) 2001-03-21
DE69704352T2 (de) 2001-07-12
BR9806518B1 (pt) 2011-01-11
CN1219728A (zh) 1999-06-16
KR19990023961A (ko) 1999-03-25
ES2155230T3 (es) 2001-05-01
CN1132175C (zh) 2003-12-24
AU8194998A (en) 1999-03-11
AU750499B2 (en) 2002-07-18
EP0899733A1 (de) 1999-03-03
US6535858B1 (en) 2003-03-18
RU2229172C2 (ru) 2004-05-20
BR9806518A (pt) 2001-03-13
JPH11250512A (ja) 1999-09-17
DE69704352D1 (de) 2001-04-26
SG71803A1 (en) 2000-04-18
CA2245232C (en) 2007-01-23
TW374900B (en) 1999-11-21
KR100583906B1 (ko) 2006-09-06

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