BR112014010493A2 - método e unidade de multimídia para processar um fluxo de transporte de radiodifusão digital - Google Patents
método e unidade de multimídia para processar um fluxo de transporte de radiodifusão digitalInfo
- Publication number
- BR112014010493A2 BR112014010493A2 BR112014010493A BR112014010493A BR112014010493A2 BR 112014010493 A2 BR112014010493 A2 BR 112014010493A2 BR 112014010493 A BR112014010493 A BR 112014010493A BR 112014010493 A BR112014010493 A BR 112014010493A BR 112014010493 A2 BR112014010493 A2 BR 112014010493A2
- Authority
- BR
- Brazil
- Prior art keywords
- multimedia unit
- processing
- transport stream
- conditional access
- unit
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
- H04N21/43853—Multiplex stream processing, e.g. multiplex stream decrypting involving multiplex stream decryption
-
- 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
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
- H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
- H04H60/23—Arrangements for conditional access to broadcast information or to broadcast-related services using cryptography, e.g. encryption, authentication, key distribution
-
- 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
- H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
-
- 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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23614—Multiplexing of additional data and video streams
-
- 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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/2368—Multiplexing of audio and video streams
-
- 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
- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25808—Management of client data
- H04N21/25816—Management of client data involving client authentication
-
- 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]
- H04N21/26609—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] using retrofitting techniques, e.g. by re-encrypting the control words used for pre-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]
- H04N21/40—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
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
- H04N21/4353—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream involving decryption of additional data
-
- 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
- H04N21/437—Interfacing the upstream path of the transmission network, e.g. for transmitting client requests to a VOD server
-
- 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]
- H04N21/60—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
- H04N21/61—Network physical structure; Signal processing
- H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
- H04N21/6175—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving transmission via Internet
-
- 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
- H04N21/637—Control signals issued by the client directed to the server or network components
- H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
- H04N21/63775—Control signals issued by the client directed to the server or network components directed to server for uploading keys, e.g. for a client to communicate its public key to the server
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Databases & Information Systems (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Graphics (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
resumo “método e unidade de multimídia para processar um fluxo de transporte de radiodifusão digital” a presente invenção se refere a um método para gerenciar um processa-mento de um fluxo de transporte de radiodifusão digital (10) recebido a partir de um radiodifusor (20) através de uma rede (50), por uma unidade de multimídia (30) identificada por um identificador pessoal. esta unidade de multimídia é conectável a um módulo de segurança (38) associado à unidade de multimídia. esta unidade de multimídia também é conectável a um servidor (40) através de uma conexão ip (45) dotada de um caminho de retorno (43). o fluxo de transporte (10) que compreende os pacotes de conteúdo embaralhados (15) e as mensagens de acesso condicional embaralhadas (12) que são necessárias para desembaralhar os pacotes de conteúdo. o método que compreende as etapas de: enviar as mensagens de acesso condicional (12), para seu processamento, a partir da unidade de multimídia (30), para o servidor (40) através do caminho de retorno (43) ou para o módulo de segurança (38), que depende de um comando de seleção, verificar a autenticação da unidade de multimídia (30) e/ou a validade dos direitos de acesso alocados na unidade de multimídia (30); se a autenticação falhar ou se os direitos alocados não forem válidos impedir, então, qualquer processamento adicional da mensagem de acesso condicional (12), obter de maneira segura, na unidade de multimídia (30), os dados de controle (13) que correspondem às mensagens de acesso condicional (12), desembaralhar os pacotes de conteúdo de dados de áudio/vídeo (15) por meio dos dados de controle (13) na unidade de multimídia (30).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161553271P | 2011-10-31 | 2011-10-31 | |
EP11187260.2A EP2587827A1 (en) | 2011-10-31 | 2011-10-31 | Method and hybrid multimedia unit for descrambling a digital broadcast transport stream |
PCT/EP2012/069693 WO2013064325A1 (en) | 2011-10-31 | 2012-10-05 | Method and multimedia unit for processing a digital broadcast transport stream |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112014010493A2 true BR112014010493A2 (pt) | 2017-04-25 |
Family
ID=45065678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112014010493A BR112014010493A2 (pt) | 2011-10-31 | 2012-10-05 | método e unidade de multimídia para processar um fluxo de transporte de radiodifusão digital |
Country Status (7)
Country | Link |
---|---|
US (1) | US10091537B2 (pt) |
EP (2) | EP2587827A1 (pt) |
KR (2) | KR102004681B1 (pt) |
CN (1) | CN103975604B (pt) |
BR (1) | BR112014010493A2 (pt) |
CA (1) | CA2853712A1 (pt) |
WO (1) | WO2013064325A1 (pt) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104185070B (zh) * | 2013-05-20 | 2017-12-29 | 青岛海尔电子有限公司 | 电视不同显示窗口的切换方法 |
CN113225369A (zh) | 2015-01-06 | 2021-08-06 | 安博科技有限公司 | 用于中立应用程序编程接口的系统和方法 |
JP2018507639A (ja) * | 2015-01-28 | 2018-03-15 | アンブラ テクノロジーズ リミテッドUmbra Technologies Ltd. | グローバル仮想ネットワークについてのシステム及び方法 |
EP4293979A3 (en) | 2015-04-07 | 2024-04-17 | Umbra Technologies Ltd. | System and method for virtual interfaces and advanced smart routing in a global virtual network |
FR3044442B1 (fr) * | 2015-11-27 | 2018-02-09 | Viaccess | Procede d’identification de processeurs de securite. |
WO2017098326A1 (en) | 2015-12-11 | 2017-06-15 | Umbra Technologies Ltd. | System and method for information slingshot over a network tapestry and granularity of a tick |
US11743332B2 (en) | 2016-04-26 | 2023-08-29 | Umbra Technologies Ltd. | Systems and methods for routing data to a parallel file system |
GB2553295B (en) * | 2016-08-25 | 2020-12-16 | Samsung Electronics Co Ltd | Managing communications between a broadcast receiver and a security module |
GB2575032B (en) | 2018-06-22 | 2022-01-12 | Samsung Electronics Co Ltd | Apparatus, systems and methods for accessing CAS protected content |
CN110730365A (zh) * | 2019-09-02 | 2020-01-24 | 上海商米科技集团股份有限公司 | 一种保护视频数据安全的方法、装置和计算机存储介质 |
KR102285304B1 (ko) * | 2020-02-04 | 2021-08-02 | 에스케이브로드밴드주식회사 | 이벤트방송관리장치 및 그 동작 방법 |
WO2023205413A1 (en) * | 2022-04-22 | 2023-10-26 | Trilogy 5G, Inc. | Return path for broadcast system and method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8312267B2 (en) * | 2004-07-20 | 2012-11-13 | Time Warner Cable Inc. | Technique for securely communicating programming content |
US8266429B2 (en) * | 2004-07-20 | 2012-09-11 | Time Warner Cable, Inc. | Technique for securely communicating and storing programming material in a trusted domain |
FR2894757B1 (fr) | 2005-12-13 | 2008-05-09 | Viaccess Sa | Procede de controle d'acces a un contenu embrouille |
JP5223924B2 (ja) * | 2008-08-07 | 2013-06-26 | 富士通株式会社 | データ放送システム |
EP2278513A1 (en) * | 2009-07-15 | 2011-01-26 | Nagravision SA | Method for preventing the use of a cloned user unit communicating with a server |
US8869224B2 (en) * | 2009-07-09 | 2014-10-21 | Echostar Technologies L.L.C. | Addressable account commands |
CN102498702A (zh) * | 2009-07-20 | 2012-06-13 | 美国唯美安视国际有限公司 | 用于检测克隆回放装置的系统和方法 |
FR2954875B1 (fr) * | 2009-12-28 | 2012-01-27 | Viaccess Sa | Procedes de dechiffrement, de transmission et de reception de mots de controle, support d'enregistrement et serveur pour ces procedes |
FR2959905B1 (fr) * | 2010-05-04 | 2012-07-27 | Viaccess Sa | Procede de dechiffrement,de transmission et de reception de mots de controle, support d'enregistrement et serveur de mots de controle pour la mise en oeuvre de ces procedes |
-
2011
- 2011-10-31 EP EP11187260.2A patent/EP2587827A1/en not_active Withdrawn
-
2012
- 2012-10-05 EP EP12769428.9A patent/EP2774382A1/en not_active Withdrawn
- 2012-10-05 KR KR1020197011246A patent/KR102004681B1/ko active IP Right Grant
- 2012-10-05 US US14/354,975 patent/US10091537B2/en active Active
- 2012-10-05 KR KR1020147011772A patent/KR20140089530A/ko active IP Right Grant
- 2012-10-05 WO PCT/EP2012/069693 patent/WO2013064325A1/en active Application Filing
- 2012-10-05 BR BR112014010493A patent/BR112014010493A2/pt not_active Application Discontinuation
- 2012-10-05 CA CA2853712A patent/CA2853712A1/en not_active Abandoned
- 2012-10-05 CN CN201280053994.2A patent/CN103975604B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2587827A1 (en) | 2013-05-01 |
WO2013064325A1 (en) | 2013-05-10 |
US10091537B2 (en) | 2018-10-02 |
KR102004681B1 (ko) | 2019-10-01 |
US20140304728A1 (en) | 2014-10-09 |
CN103975604B (zh) | 2017-12-22 |
EP2774382A1 (en) | 2014-09-10 |
CA2853712A1 (en) | 2013-05-10 |
CN103975604A (zh) | 2014-08-06 |
KR20140089530A (ko) | 2014-07-15 |
KR20190045382A (ko) | 2019-05-02 |
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B11B | Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements | ||
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