FR2843257B1 - Procede et systeme d'acces conditionnel applique a la protection de contenu - Google Patents

Procede et systeme d'acces conditionnel applique a la protection de contenu

Info

Publication number
FR2843257B1
FR2843257B1 FR0209878A FR0209878A FR2843257B1 FR 2843257 B1 FR2843257 B1 FR 2843257B1 FR 0209878 A FR0209878 A FR 0209878A FR 0209878 A FR0209878 A FR 0209878A FR 2843257 B1 FR2843257 B1 FR 2843257B1
Authority
FR
France
Prior art keywords
access method
conditional access
content protection
system applied
protection
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 - Lifetime
Application number
FR0209878A
Other languages
English (en)
Other versions
FR2843257A1 (fr
Inventor
Gilles Dubroeucq
Jean Pierre Vigarie
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.)
Viaccess SAS
Original Assignee
Viaccess SAS
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 Viaccess SAS filed Critical Viaccess SAS
Priority to FR0209878A priority Critical patent/FR2843257B1/fr
Publication of FR2843257A1 publication Critical patent/FR2843257A1/fr
Application granted granted Critical
Publication of FR2843257B1 publication Critical patent/FR2843257B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4334—Recording operations
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management 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
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management 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
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4627—Rights management associated to the content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • 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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
FR0209878A 2002-08-02 2002-08-02 Procede et systeme d'acces conditionnel applique a la protection de contenu Expired - Lifetime FR2843257B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0209878A FR2843257B1 (fr) 2002-08-02 2002-08-02 Procede et systeme d'acces conditionnel applique a la protection de contenu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0209878A FR2843257B1 (fr) 2002-08-02 2002-08-02 Procede et systeme d'acces conditionnel applique a la protection de contenu

Publications (2)

Publication Number Publication Date
FR2843257A1 FR2843257A1 (fr) 2004-02-06
FR2843257B1 true FR2843257B1 (fr) 2004-11-26

Family

ID=30129654

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0209878A Expired - Lifetime FR2843257B1 (fr) 2002-08-02 2002-08-02 Procede et systeme d'acces conditionnel applique a la protection de contenu

Country Status (1)

Country Link
FR (1) FR2843257B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8291236B2 (en) 2004-12-07 2012-10-16 Digital Keystone, Inc. Methods and apparatuses for secondary conditional access server
EP2273405A1 (fr) 2009-07-07 2011-01-12 Irdeto Access B.V. Traitement de contenu enregistrable dans un flux
EP2280544A1 (fr) * 2009-07-07 2011-02-02 Irdeto Access B.V. Transmission et enregistrement sécurisés d'un contenu

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1244306B1 (fr) * 1994-07-08 2008-02-06 Sony Corporation Réception de signaux de télédiffusion en accès conditionnel pour la reproduction plus d'une fois
EP0858184A3 (fr) * 1997-02-07 1999-09-01 Nds Limited Système de protection d'enregistrement numérique
EP0936774A1 (fr) * 1998-02-13 1999-08-18 CANAL+ Société Anonyme Enrégistrement de données numériques brouillées
JP4517436B2 (ja) * 2000-02-09 2010-08-04 ソニー株式会社 受信システム、受信装置、及び受信システムの制御方法

Also Published As

Publication number Publication date
FR2843257A1 (fr) 2004-02-06

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