DE60104213D1 - Teilverschlüsselung von zusammengesetzten bitströmen - Google Patents

Teilverschlüsselung von zusammengesetzten bitströmen

Info

Publication number
DE60104213D1
DE60104213D1 DE60104213T DE60104213T DE60104213D1 DE 60104213 D1 DE60104213 D1 DE 60104213D1 DE 60104213 T DE60104213 T DE 60104213T DE 60104213 T DE60104213 T DE 60104213T DE 60104213 D1 DE60104213 D1 DE 60104213D1
Authority
DE
Germany
Prior art keywords
bitstream
encrypted
assembled
data
encoded bitstream
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.)
Expired - Fee Related
Application number
DE60104213T
Other languages
English (en)
Other versions
DE60104213T2 (de
Inventor
Mead Truman
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.)
Dolby Laboratories Licensing Corp
Original Assignee
Dolby Laboratories Licensing Corp
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 Dolby Laboratories Licensing Corp filed Critical Dolby Laboratories Licensing Corp
Publication of DE60104213D1 publication Critical patent/DE60104213D1/de
Application granted granted Critical
Publication of DE60104213T2 publication Critical patent/DE60104213T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
DE60104213T 2000-12-15 2001-12-17 Teilverschlüsselung von zusammengesetzten bitströmen Expired - Fee Related DE60104213T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US25595400P 2000-12-15 2000-12-15
US255954P 2000-12-15
PCT/US2001/049333 WO2002062008A2 (en) 2000-12-15 2001-12-17 Partial encryption of assembled bitstreams

Publications (2)

Publication Number Publication Date
DE60104213D1 true DE60104213D1 (de) 2004-08-12
DE60104213T2 DE60104213T2 (de) 2005-08-25

Family

ID=22970527

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60104213T Expired - Fee Related DE60104213T2 (de) 2000-12-15 2001-12-17 Teilverschlüsselung von zusammengesetzten bitströmen

Country Status (7)

Country Link
EP (1) EP1342333B1 (de)
JP (1) JP2004519131A (de)
AT (1) ATE270798T1 (de)
AU (1) AU2002249824A1 (de)
CA (1) CA2436678A1 (de)
DE (1) DE60104213T2 (de)
WO (1) WO2002062008A2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7139398B2 (en) * 2001-06-06 2006-11-21 Sony Corporation Time division partial encryption
FR2845543B1 (fr) * 2002-10-03 2005-02-04 Medialive Systeme d'embrouillage securise de flux audio
US7630492B2 (en) 2002-10-03 2009-12-08 Daniel Lecomte Secure audio stream scramble system
FR2879878B1 (fr) 2004-12-22 2007-05-25 Thales Sa Procede de chiffrement selectif compatible pour flux video
WO2009007876A2 (en) * 2007-07-06 2009-01-15 Koninklijke Philips Electronics N.V. Warermarking and encryption of entropy-coded data using additive huffman table
US20100278338A1 (en) * 2009-05-04 2010-11-04 Mediatek Singapore Pte. Ltd. Coding device and method with reconfigurable and scalable encryption/decryption modules

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69332529T2 (de) * 1992-07-21 2003-08-14 Matsushita Electric Ind Co Ltd Verschlüsselungsvorrichtung
DE19907964C1 (de) * 1999-02-24 2000-08-10 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Erzeugen eines verschlüsselten Datenstroms und Vorrichtung und Verfahren zum Erzeugen eines entschlüsselten Audio- und/oder Videosignals

Also Published As

Publication number Publication date
EP1342333A2 (de) 2003-09-10
WO2002062008A3 (en) 2003-01-03
CA2436678A1 (en) 2002-08-08
WO2002062008A2 (en) 2002-08-08
EP1342333B1 (de) 2004-07-07
ATE270798T1 (de) 2004-07-15
WO2002062008A8 (en) 2003-10-30
JP2004519131A (ja) 2004-06-24
AU2002249824A1 (en) 2002-08-12
DE60104213T2 (de) 2005-08-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee