CA2372810A1 - Procede et appareil de controle d'acces de services televisuels a la carte pre-cryptes - Google Patents

Procede et appareil de controle d'acces de services televisuels a la carte pre-cryptes Download PDF

Info

Publication number
CA2372810A1
CA2372810A1 CA002372810A CA2372810A CA2372810A1 CA 2372810 A1 CA2372810 A1 CA 2372810A1 CA 002372810 A CA002372810 A CA 002372810A CA 2372810 A CA2372810 A CA 2372810A CA 2372810 A1 CA2372810 A1 CA 2372810A1
Authority
CA
Canada
Prior art keywords
odb
accordance
content
encrypted content
user terminal
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.)
Abandoned
Application number
CA002372810A
Other languages
English (en)
Inventor
Reem Safadi
Lawrence D. Vince
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.)
Arris Technology Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2372810A1 publication Critical patent/CA2372810A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • 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, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • 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, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • H04N21/23473—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption by pre-encrypting
    • 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
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/64—Addressing
    • H04N21/6405—Multicasting
    • 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
    • H04N7/165—Centralised control of user terminal ; Registering at central
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un procédé et un appareil permettant de contrôler l'accès à un contenu télévisuel à la carte pré-crypté. La capacité de chiffrement existante au niveau des services télévisuels par câble, ou analogue, est étendue à un contenu pré-crypté à partir d'un serveur (12), demandé par un téléspectateur à un terminal d'utilisateur (20). Selon un mode de réalisation, le contenu pré-crypté (fourni, par exemple, par un dispositif de chiffrement (14)) peut être diffusé, ou multi-diffusé, à partir du serveur (12) vers un groupe de téléspectateurs. On peut faciliter des implantations d'algorithmes de contrôle d'admissibilité dont la complexité varie en fonction des besoins. En outre, on peut étendre le procédé afin de permettre un contrôle d'accès de contenu pré-crypté qui soit indépendant du protocole de transport utilisé. De tels protocoles comprennent notamment MPEG-2 et le protocole Internet (IP) qui peuvent également utiliser un cryptage à clé publique.
CA002372810A 1999-05-04 2000-04-12 Procede et appareil de controle d'acces de services televisuels a la carte pre-cryptes Abandoned CA2372810A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13236699P 1999-05-04 1999-05-04
US60/132,366 1999-05-04
PCT/US2000/009800 WO2000067483A1 (fr) 1999-05-04 2000-04-12 Procede et appareil de controle d'acces de services televisuels a la carte pre-cryptes

Publications (1)

Publication Number Publication Date
CA2372810A1 true CA2372810A1 (fr) 2000-11-09

Family

ID=22453686

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002372810A Abandoned CA2372810A1 (fr) 1999-05-04 2000-04-12 Procede et appareil de controle d'acces de services televisuels a la carte pre-cryptes

Country Status (6)

Country Link
EP (1) EP1175781A1 (fr)
AU (1) AU4235900A (fr)
CA (1) CA2372810A1 (fr)
MX (1) MXPA01010808A (fr)
TW (1) TW511377B (fr)
WO (1) WO2000067483A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60140125D1 (de) 2000-08-11 2009-11-19 Nds Ltd Ertragenem inhalt
US20020083438A1 (en) * 2000-10-26 2002-06-27 So Nicol Chung Pang System for securely delivering encrypted content on demand with access contrl
US6978022B2 (en) * 2000-10-26 2005-12-20 General Instrument Corporation System for securing encryption renewal system and for registration and remote activation of encryption device
US7257227B2 (en) * 2000-10-26 2007-08-14 General Instrument Corporation System for denying access to content generated by a compromised off line encryption device and for conveying cryptographic keys from multiple conditional access systems
US7080397B2 (en) * 2000-10-26 2006-07-18 General Instrument Corporation Communication protocol for content on demand system with callback time
EP1388126B1 (fr) 2001-05-17 2013-03-27 Nokia Corporation Autorisation d'acces a distance a un environnement intelligent

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3746098B2 (ja) * 1996-02-28 2006-02-15 株式会社日立製作所 データの暗号化装置
UA74766C2 (en) * 1997-03-21 2006-02-15 Canal Plus Sa Television service system and facilities for accessing the system
US6049539A (en) * 1997-09-15 2000-04-11 Worldgate Communications, Inc. Access system and method for providing interactive access to an information source through a networked distribution system

Also Published As

Publication number Publication date
MXPA01010808A (es) 2002-05-14
EP1175781A1 (fr) 2002-01-30
TW511377B (en) 2002-11-21
WO2000067483A1 (fr) 2000-11-09
AU4235900A (en) 2000-11-17

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued
FZDE Discontinued

Effective date: 20071207