MX2011002474A - Un metodo para controlar el acceso a una pluralidad de canales por un receptor / descodificador. - Google Patents
Un metodo para controlar el acceso a una pluralidad de canales por un receptor / descodificador.Info
- Publication number
- MX2011002474A MX2011002474A MX2011002474A MX2011002474A MX2011002474A MX 2011002474 A MX2011002474 A MX 2011002474A MX 2011002474 A MX2011002474 A MX 2011002474A MX 2011002474 A MX2011002474 A MX 2011002474A MX 2011002474 A MX2011002474 A MX 2011002474A
- Authority
- MX
- Mexico
- Prior art keywords
- channel
- control word
- security module
- channel identifier
- decoder
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 102100031758 Extracellular matrix protein 1 Human genes 0.000 abstract 3
- 101000866526 Homo sapiens Extracellular matrix protein 1 Proteins 0.000 abstract 3
- 238000012795 verification Methods 0.000 abstract 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0877—Generation of secret information including derivation or calculation of cryptographic keys or passwords using additional device, e.g. trusted platform module [TPM], smartcard, USB or hardware security module [HSM]
-
- 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
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
- H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
- H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
-
- 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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/60—Digital content management, e.g. content distribution
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Mobile Radio Communication Systems (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
La presente invención está dirigida a proveer una manera de acelerar el cambio de canal, en particular para contenidos encriptados con verificación de los derechos de acceso. De acuerdo con la presente invención se propone un método para controlar el acceso a una pluralidad de canales por un receptor / descodificador (STB) que comprende un módulo de seguridad (SC); cada canal está encriptado por medio de una palabra de control de canal específica (CW1, CW2); cada canal tiene un identificador de canal (ID1, ID2) y trasporta mensajes de autorización ECM que contienen por lo menos la palabra de control del canal actual y las condiciones de acceso al canal; el método comprende los pasos de: -sintonizar un primer canal que tiene un primer identificador de canal (ID1); -trasmitir el primer identificador de canal (ID1) al módulo de seguridad (SC); -recibir primeros mensajes de autorización ECM1 que contienen una primera palabra de control (CW1); -trasmitir los primeros mensajes de autorización ECM1 al módulo de seguridad (SC); -desencriptar los primeros mensajes de autorización ECM1 y verificar las condiciones de acceso al canal; -si se satisfacen las condiciones de acceso, regresar la primera palabra de control (CW1) al receptor / descodificador.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10155684A EP2373018B1 (en) | 2010-03-05 | 2010-03-05 | A method for controlling access to a plurality of channels by a receiver/decoder |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2011002474A true MX2011002474A (es) | 2011-09-15 |
Family
ID=42232759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2011002474A MX2011002474A (es) | 2010-03-05 | 2011-03-04 | Un metodo para controlar el acceso a una pluralidad de canales por un receptor / descodificador. |
Country Status (8)
Country | Link |
---|---|
US (1) | US9609280B2 (es) |
EP (2) | EP2373018B1 (es) |
KR (1) | KR101762955B1 (es) |
CN (1) | CN102196316B (es) |
AT (1) | ATE557533T1 (es) |
BR (1) | BRPI1101807A2 (es) |
MX (1) | MX2011002474A (es) |
RU (1) | RU2519395C2 (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PL2697979T3 (pl) * | 2011-04-15 | 2017-04-28 | Nagravision S.A. | Sposób identyfikacji pochodzenia modułu zabezpieczającego w systemie dekodera telewizji płatnej |
IL213611A0 (en) * | 2011-06-16 | 2011-07-31 | Erez Waisbard | Secure fast channel changing |
US9106965B2 (en) | 2012-12-27 | 2015-08-11 | Echostar Technologies L.L.C. | Using idle resources to reduce channel change times |
EP2827601A1 (fr) * | 2013-07-19 | 2015-01-21 | Nagravision S.A. | Méthode et dispositif pour la protection des clés de déchiffrement d'un décodeur |
CN103997664B (zh) * | 2014-05-07 | 2018-05-01 | 深圳市九洲电器有限公司 | 一种音视频流的解扰方法及系统 |
US9854306B2 (en) | 2014-07-28 | 2017-12-26 | Echostar Technologies L.L.C. | Methods and systems for content navigation among programs presenting advertising content |
US9756378B2 (en) | 2015-01-07 | 2017-09-05 | Echostar Technologies L.L.C. | Single file PVR per service ID |
CN104811773B (zh) * | 2015-04-28 | 2017-12-15 | 天脉聚源(北京)传媒科技有限公司 | 基于防盗链的频道播放实现方法、系统及设备 |
US9635413B2 (en) * | 2015-09-23 | 2017-04-25 | Echostar Technologies L.L.C. | Advance decryption key acquisition for streaming media content |
EP3399761A1 (en) * | 2017-05-05 | 2018-11-07 | Nagravision SA | Entitlement management |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2680589A1 (fr) * | 1991-08-19 | 1993-02-26 | France Telecom | Procede d'emission et de reception de programmes personnalises. |
FR2694860B1 (fr) | 1992-08-13 | 1994-09-30 | France Telecom | Procédés de diffusion et de réception de programmes de télévision à accès conditionnel à temps de commutation de programmes réduit. |
FR2715256B1 (fr) | 1994-01-19 | 1996-02-16 | France Telecom | Procédés d'émission et de réception de programmes à accès conditionnel gérés par un même opérateur. |
EP0926894A1 (en) * | 1997-12-23 | 1999-06-30 | CANAL+ Société Anonyme | Scrambling unit for a digital transmission system |
US6735313B1 (en) * | 1999-05-07 | 2004-05-11 | Lucent Technologies Inc. | Cryptographic method and apparatus for restricting access to transmitted programming content using hash functions and program identifiers |
EP1353501A1 (fr) * | 2002-04-11 | 2003-10-15 | Nagravision SA | Système de télévision à péage à pré-paiement |
EP1447976B1 (en) * | 2003-02-12 | 2019-06-19 | Irdeto B.V. | Method of controlling descrambling of a plurality of program transport streams, receiver system and portable secure device |
KR20060060014A (ko) | 2003-08-13 | 2006-06-02 | 톰슨 라이센싱 | 채널-변경 시간을 감소시키기 위한 디스크램블링 데이터의사전-처리 |
US20070234395A1 (en) | 2004-10-15 | 2007-10-04 | Vincent Dureau | Speeding up channel change |
EP1705915A1 (fr) * | 2005-03-22 | 2006-09-27 | Nagravision S.A. | Procédé de gestion de l'accès à des données à accès conditionnel pour un zapping rapide |
US8625792B2 (en) | 2008-01-16 | 2014-01-07 | Qualcomm Incorporated | Methods and apparatus to reduce channel switching time |
-
2010
- 2010-03-05 EP EP10155684A patent/EP2373018B1/en not_active Not-in-force
- 2010-03-05 AT AT10155684T patent/ATE557533T1/de active
-
2011
- 2011-02-22 EP EP11155288A patent/EP2373021A1/en not_active Withdrawn
- 2011-02-24 BR BRPI1101807-0A patent/BRPI1101807A2/pt not_active IP Right Cessation
- 2011-03-03 CN CN201110050655.6A patent/CN102196316B/zh active Active
- 2011-03-03 RU RU2011108040/08A patent/RU2519395C2/ru not_active IP Right Cessation
- 2011-03-04 MX MX2011002474A patent/MX2011002474A/es active IP Right Grant
- 2011-03-04 KR KR1020110019339A patent/KR101762955B1/ko active IP Right Grant
- 2011-03-07 US US13/042,011 patent/US9609280B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2373018A1 (en) | 2011-10-05 |
ATE557533T1 (de) | 2012-05-15 |
EP2373018B1 (en) | 2012-05-09 |
US9609280B2 (en) | 2017-03-28 |
CN102196316A (zh) | 2011-09-21 |
CN102196316B (zh) | 2015-03-11 |
RU2519395C2 (ru) | 2014-06-10 |
RU2011108040A (ru) | 2012-09-10 |
US20110219396A1 (en) | 2011-09-08 |
BRPI1101807A2 (pt) | 2012-08-07 |
EP2373021A1 (en) | 2011-10-05 |
KR101762955B1 (ko) | 2017-07-28 |
KR20110101084A (ko) | 2011-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration |