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 PDFInfo
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000013475 authorization Methods 0.000 claims description 50
- 230000006854 communication Effects 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000003116 impacting effect Effects 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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 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
-
- 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
- H04N21/23473—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream 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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60140125D1 (de) | 2000-08-11 | 2009-11-19 | Nds Ltd | Ertragenem inhalt |
US7080397B2 (en) | 2000-10-26 | 2006-07-18 | General Instrument Corporation | Communication protocol for content on demand system with callback time |
US20020083438A1 (en) * | 2000-10-26 | 2002-06-27 | So Nicol Chung Pang | System for securely delivering encrypted content on demand with access contrl |
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 |
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 |
WO2002093502A1 (fr) * | 2001-05-17 | 2002-11-21 | Nokia Corporation | Autorisation d'acces a distance a un environnement intelligent |
Family Cites Families (3)
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 |
HU229694B1 (en) * | 1997-03-21 | 2014-05-28 | Nagra France Sas | Conditional access 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 |
-
2000
- 2000-04-12 MX MXPA01010808A patent/MXPA01010808A/es unknown
- 2000-04-12 CA CA002372810A patent/CA2372810A1/fr not_active Abandoned
- 2000-04-12 EP EP00922124A patent/EP1175781A1/fr not_active Withdrawn
- 2000-04-12 WO PCT/US2000/009800 patent/WO2000067483A1/fr not_active Application Discontinuation
- 2000-04-12 AU AU42359/00A patent/AU4235900A/en not_active Abandoned
- 2000-04-19 TW TW89107372A patent/TW511377B/zh active
Also Published As
Publication number | Publication date |
---|---|
TW511377B (en) | 2002-11-21 |
AU4235900A (en) | 2000-11-17 |
WO2000067483A1 (fr) | 2000-11-09 |
EP1175781A1 (fr) | 2002-01-30 |
MXPA01010808A (es) | 2002-05-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Discontinued | ||
FZDE | Discontinued |
Effective date: 20071207 |