ATE405049T1 - System zur gesicherten verschlüsselung eines audiostroms - Google Patents

System zur gesicherten verschlüsselung eines audiostroms

Info

Publication number
ATE405049T1
ATE405049T1 AT03798955T AT03798955T ATE405049T1 AT E405049 T1 ATE405049 T1 AT E405049T1 AT 03798955 T AT03798955 T AT 03798955T AT 03798955 T AT03798955 T AT 03798955T AT E405049 T1 ATE405049 T1 AT E405049T1
Authority
AT
Austria
Prior art keywords
stream
main stream
nominal
frames
audio
Prior art date
Application number
AT03798955T
Other languages
English (en)
Inventor
Daniel Lecomte
Daniela Parayre-Mitzova
Original Assignee
Medialive
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 Medialive filed Critical Medialive
Application granted granted Critical
Publication of ATE405049T1 publication Critical patent/ATE405049T1/de

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/233Processing of audio elementary streams
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04KSECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00Secret communication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/439Processing of audio elementary streams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462Content or additional data management e.g. creating a master electronic programme guide from data received from the Internet and a Head-end or controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81Monomedia components thereof
    • H04N21/8106Monomedia components thereof involving special audio data, e.g. different tracks for different languages
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835Generation of protective data, e.g. certificates

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Security & Cryptography (AREA)
  • Health & Medical Sciences (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Stereophonic System (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Storage Device Security (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
AT03798955T 2002-10-03 2003-10-03 System zur gesicherten verschlüsselung eines audiostroms ATE405049T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0212267A FR2845543B1 (fr) 2002-10-03 2002-10-03 Systeme d'embrouillage securise de flux audio

Publications (1)

Publication Number Publication Date
ATE405049T1 true ATE405049T1 (de) 2008-08-15

Family

ID=32011371

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03798955T ATE405049T1 (de) 2002-10-03 2003-10-03 System zur gesicherten verschlüsselung eines audiostroms

Country Status (6)

Country Link
EP (1) EP1582022B1 (de)
AT (1) ATE405049T1 (de)
AU (1) AU2003299159A1 (de)
DE (1) DE60322958D1 (de)
FR (1) FR2845543B1 (de)
WO (1) WO2004032418A2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100437526C (zh) * 2004-04-20 2008-11-26 松下电器产业株式会社 记录再生装置及内容数据保护系统
FR2898451B1 (fr) 2006-03-13 2008-05-09 Medialive Procede et equipement de distribution de contenus audiovisuels numeriques securises par des solutions interoperables

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5058159A (en) * 1989-06-15 1991-10-15 Macrovision Corporation Method and system for scrambling and descrambling audio information signals
EP1095517A1 (de) * 1998-04-21 2001-05-02 Verance Corporation Multimediaadoptives verschlüsselungssystem
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
ATE270798T1 (de) * 2000-12-15 2004-07-15 Dolby Lab Licensing Corp Teilverschlüsselung von zusammengesetzten bitströmen
ES2266481T3 (es) * 2001-04-18 2007-03-01 Koninklijke Philips Electronics N.V. Codificacion de audio con encriptacion parcial.

Also Published As

Publication number Publication date
DE60322958D1 (de) 2008-09-25
WO2004032418A2 (fr) 2004-04-15
FR2845543A1 (fr) 2004-04-09
AU2003299159A8 (en) 2004-04-23
FR2845543B1 (fr) 2005-02-04
EP1582022B1 (de) 2008-08-13
AU2003299159A1 (en) 2004-04-23
WO2004032418A3 (fr) 2004-08-05
EP1582022A2 (de) 2005-10-05

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Legal Events

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