CY1113006T1 - Φορεας πληροφοριων, ο οποιος περιλαμβανει πληροφοριες προσβασης - Google Patents

Φορεας πληροφοριων, ο οποιος περιλαμβανει πληροφοριες προσβασης

Info

Publication number
CY1113006T1
CY1113006T1 CY20121100263T CY121100263T CY1113006T1 CY 1113006 T1 CY1113006 T1 CY 1113006T1 CY 20121100263 T CY20121100263 T CY 20121100263T CY 121100263 T CY121100263 T CY 121100263T CY 1113006 T1 CY1113006 T1 CY 1113006T1
Authority
CY
Cyprus
Prior art keywords
bits
information
access information
random
variation
Prior art date
Application number
CY20121100263T
Other languages
English (en)
Inventor
Aalbert Stek
Martinus W Blum
Rompaey Bart Van
Jacobus P J Heemskerk
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of CY1113006T1 publication Critical patent/CY1113006T1/el

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
    • G11B20/0021—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
    • 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
    • G11B20/0021—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
    • G11B20/00297—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 a management area, e.g. the video manager [VMG] of a DVD
    • G11B20/00304—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 a management area, e.g. the video manager [VMG] of a DVD the key being stored in the lead-in area [LIA]
    • 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
    • G11B20/00405—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 by varying characteristics of the recording track, e.g. by altering the track pitch or by modulating the wobble track
    • 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
    • G11B20/00579—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 data encoding, e.g., modulation schemes violating run-length constraints, causing excessive DC content, or involving uncommon codewords or sync patterns
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1288—Formatting by padding empty spaces with dummy data, e.g. writing zeroes or random data when de-icing optical discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Storage Device Security (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

Η εφεύρεση αναφέρεται σε ένα φορέα πληροφοριών για την τήρηση πληροφοριών χρήστη, όπου ο φορέας πληροφοριών περιλαμβάνει πληροφορίες πρόσβασης με τη μορφή δυαδικών ψηφίων πληροφοριών πρόσβασης για την πρόσβαση στις πληροφορίες χρήστη, όπου οι πληροφορίες πρόσβασης αποθηκεύονται στο φορέα πληροφοριών σε μία μεταβολή μίας παραμέτρου, η οποία μεταβολή είναι ανιχνεύσιμη μέσω ολοκληρωματικής ανίχνευσης. Τα δυαδικά ψηφία πληροφοριών πρόσβασης περιπλέκονται σύμφωνα με μία προκαθορισμένη μέθοδο περιπλοκής. Μέσω της περιπλοκής των δυαδικών ψηφίων πληροφοριών πρόσβασης σύμφωνα με μία προκαθορισμένη μέθοδο περιπλοκής, η ανίχνευση των πληροφοριών πρόσβασης δεν είναι δυνατή όσο δεν είναι γνωστή η μέθοδος περιπλοκής. Η χρήση της τεχνικής ολοκληρωματικής ανίχνευσης έχει σαν αποτέλεσμα οι πληροφορίες πρόσβασης να είναι γνωστές μόνο σε όποιον γνωρίζει πως πρέπει να γίνεται επεξεργασία του σήματος, το οποίο λαμβάνεται αφού αναγνώζεται η περιοχή, η οποία περιλαμβάνει τα δυαδικά ψηφία πληροφοριών πρόσβασης. Με αυτό τον τρόπο εμποδίζεται περαιτέρω η έκνομη ανάκτηση των πληροφοριών χρήστη.
CY20121100263T 2003-02-20 2012-03-14 Φορεας πληροφοριων, ο οποιος περιλαμβανει πληροφοριες προσβασης CY1113006T1 (el)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1022743 2003-02-20
EP04708423A EP1597727B1 (en) 2003-02-20 2004-02-05 Information carrier comprising access information

Publications (1)

Publication Number Publication Date
CY1113006T1 true CY1113006T1 (el) 2016-04-13

Family

ID=32906716

Family Applications (1)

Application Number Title Priority Date Filing Date
CY20121100263T CY1113006T1 (el) 2003-02-20 2012-03-14 Φορεας πληροφοριων, ο οποιος περιλαμβανει πληροφοριες προσβασης

Country Status (13)

Country Link
US (1) US8718277B2 (el)
EP (2) EP1959448B1 (el)
JP (2) JP4672645B2 (el)
KR (1) KR101016988B1 (el)
CN (2) CN101577132B (el)
AT (1) ATE539436T1 (el)
CY (1) CY1113006T1 (el)
DK (1) DK1597727T3 (el)
ES (1) ES2379551T3 (el)
PT (1) PT1597727E (el)
SI (1) SI1597727T1 (el)
TW (1) TWI364968B (el)
WO (1) WO2004075187A1 (el)

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Also Published As

Publication number Publication date
US20060190741A1 (en) 2006-08-24
PT1597727E (pt) 2012-03-22
CN101577132A (zh) 2009-11-11
JP4824730B2 (ja) 2011-11-30
JP2006518525A (ja) 2006-08-10
EP1597727B1 (en) 2011-12-28
SI1597727T1 (sl) 2012-05-31
US8718277B2 (en) 2014-05-06
WO2004075187A1 (en) 2004-09-02
TW200423670A (en) 2004-11-01
EP1597727A1 (en) 2005-11-23
DK1597727T3 (da) 2012-04-16
JP4672645B2 (ja) 2011-04-20
ATE539436T1 (de) 2012-01-15
KR20050111591A (ko) 2005-11-25
EP1959448A3 (en) 2009-07-29
EP1959448B1 (en) 2013-04-10
TWI364968B (en) 2012-05-21
CN1751347A (zh) 2006-03-22
EP1959448A2 (en) 2008-08-20
KR101016988B1 (ko) 2011-02-25
JP2009009696A (ja) 2009-01-15
ES2379551T3 (es) 2012-04-27
CN1751347B (zh) 2011-12-07
CN101577132B (zh) 2015-05-27

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