BR0109835A - Sistema para a provisão de conteúdo embaralhado e sistema para o desembaralhamento de conteúdo embaralhado - Google Patents
Sistema para a provisão de conteúdo embaralhado e sistema para o desembaralhamento de conteúdo embaralhadoInfo
- Publication number
- BR0109835A BR0109835A BR0109835-7A BR0109835A BR0109835A BR 0109835 A BR0109835 A BR 0109835A BR 0109835 A BR0109835 A BR 0109835A BR 0109835 A BR0109835 A BR 0109835A
- Authority
- BR
- Brazil
- Prior art keywords
- control word
- scrambled content
- ecm
- scrambler
- scrambled
- Prior art date
Links
- 238000013475 authorization Methods 0.000 abstract 1
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]
- H04N21/20—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
- H04N21/26613—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 keys in general
-
- 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
- H04N21/41—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
- H04N21/44—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
- H04N21/4405—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 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]
- H04N21/40—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
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- 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
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
- H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
- H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Storage Device Security (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
"SISTEMA PARA A PROVISãO DE CONTEúDO EMBARALHADO E SISTEMA PARA O DESEMBARALHAMENTO DE CONTEúDO EMBARALHADO". A presente invenção refere-se a um sistema para a provisão de conteúdo embaralhado, que compreende um gerador de palavra de controle, cada palavra de controle incluindo um identificador de palavra de controle, um embaralhador para a provisão de um fluxo de pacotes de dados embaralhados, e um dispositivo de encriptação, para a provisão de mensagens de controle de autorização (ECM's). Um ou mais pacotes consecutivos são embaralhados usando-se a mesma palavra de controle (CW). Cada pacote inclui um identificador de palavra de controle, que identifica a palavra de controle usada. O dispositivo de encriptação de ECM provê ECM's, incluindo uma palavra de controle anterior (CW~ p~), uma palavra de controle atual (CW~ c~) e uma próxima palavra de controle (CW~ n~). Um sistema para o desembaralhamento de conteúdo embaralhado compreende um desembaralhador para o desembaralhamento de conteúdo embaralhado e um dispositivo de desencriptação para a desencriptação de ECM's, para a obtenção de palavras de controle. O dispositivo de desencriptação de ECM envia palavras de controle para o desembaralhador e o desembaralhador desembaralha os pacotes de dados do conteúdo embaralhado usando uma palavra de controle, que tem um identificador de palavra de controle correspondente ao identificador de palavra de controle do pacote de dados a ser desembaralhado. O sistema ainda compreende um dispositivo de armazenamento, para o armazenamento de conteúdo embaralhado e um meio para controlar a exibição do conteúdo armazenado, indo para frente e indo para trás. O sistema é programado para extrair EMCs e proporcionar o EMCs para o dispositivo de desencriptação de EMC para desencriptação. O sistema é programado para requisitar que o dispositivo de desencriptação de ECM proveja pelo menos uma próxima palavra de controle (CW~ n~) na exibição ou indo para frente, e proveja pelo menos uma palavra de controle anterior (CW~ p~) e uma palavra de controle atual (CW~ c~) indo para trás.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00201277A EP1143722B1 (en) | 2000-04-07 | 2000-04-07 | Data scrambling and descrambling system |
PCT/EP2001/003186 WO2001078387A2 (en) | 2000-04-07 | 2001-03-21 | Data scrambling and descrambling system |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0109835A true BR0109835A (pt) | 2003-06-24 |
Family
ID=8171322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0109835-7A BR0109835A (pt) | 2000-04-07 | 2001-03-21 | Sistema para a provisão de conteúdo embaralhado e sistema para o desembaralhamento de conteúdo embaralhado |
Country Status (14)
Country | Link |
---|---|
US (1) | US7116892B2 (pt) |
EP (1) | EP1143722B1 (pt) |
JP (1) | JP4772252B2 (pt) |
CN (1) | CN1190077C (pt) |
AU (1) | AU2001260138B2 (pt) |
BR (1) | BR0109835A (pt) |
CA (1) | CA2405266C (pt) |
DE (1) | DE60040724D1 (pt) |
ES (1) | ES2315219T3 (pt) |
HK (1) | HK1041143B (pt) |
MX (1) | MXPA02009818A (pt) |
TW (1) | TW540240B (pt) |
WO (1) | WO2001078387A2 (pt) |
ZA (1) | ZA200209032B (pt) |
Families Citing this family (50)
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WO2001091466A2 (en) * | 2000-05-22 | 2001-11-29 | Nds Limited | Dynamically shifting control word |
US7688803B1 (en) | 2000-09-01 | 2010-03-30 | Young Steven J | System and method for coordinating between multiple telephony channels |
US7200859B1 (en) | 2000-11-22 | 2007-04-03 | Digeo, Inc. | Apparatus and method for intelligent multimedia compression and distribution |
US6813643B2 (en) | 2001-01-05 | 2004-11-02 | Digeo, Inc. | Multimedia system with selectable protocol module including MPEG logic and docsis logic sharing a single tuner |
US20020116705A1 (en) | 2001-02-20 | 2002-08-22 | Perlman Stephen G. | System and method for processing conditional access data |
US7046805B2 (en) | 2001-03-20 | 2006-05-16 | Digeo, Inc. | System and method for efficiently storing and processing multimedia content |
US8077679B2 (en) | 2001-03-28 | 2011-12-13 | Qualcomm Incorporated | Method and apparatus for providing protocol options in a wireless communication system |
US8121296B2 (en) | 2001-03-28 | 2012-02-21 | Qualcomm Incorporated | Method and apparatus for security in a data processing system |
US9100457B2 (en) | 2001-03-28 | 2015-08-04 | Qualcomm Incorporated | Method and apparatus for transmission framing in a wireless communication system |
US7093277B2 (en) | 2001-05-30 | 2006-08-15 | Digeo, Inc. | System and method for improved multi-stream multimedia transmission and processing |
US7386129B2 (en) | 2001-05-30 | 2008-06-10 | Digeo, Inc. | System and method for multimedia content simulcast |
US7352868B2 (en) | 2001-10-09 | 2008-04-01 | Philip Hawkes | Method and apparatus for security in a data processing system |
US7649829B2 (en) | 2001-10-12 | 2010-01-19 | Qualcomm Incorporated | Method and system for reduction of decoding complexity in a communication system |
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JP2005514874A (ja) * | 2002-01-14 | 2005-05-19 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 時間依存条件付きアクセスを供給するシステム |
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JP4406815B2 (ja) | 2002-06-26 | 2010-02-03 | ソニー株式会社 | 情報処理装置および方法、記録媒体、並びにプログラム |
US20040151315A1 (en) * | 2002-11-06 | 2004-08-05 | Kim Hee Jean | Streaming media security system and method |
US20060285686A1 (en) * | 2002-12-20 | 2006-12-21 | Koninklijke Philips Electronics N.V. | Apparatus and method for processing streams |
US7599655B2 (en) | 2003-01-02 | 2009-10-06 | Qualcomm Incorporated | Method and apparatus for broadcast services in a communication system |
DE602004015946D1 (de) * | 2003-02-10 | 2008-10-02 | Koninkl Philips Electronics Nv | Erzeugung verschlüsselter videoinformationen |
US8098818B2 (en) | 2003-07-07 | 2012-01-17 | Qualcomm Incorporated | Secure registration for a multicast-broadcast-multimedia system (MBMS) |
US8718279B2 (en) | 2003-07-08 | 2014-05-06 | Qualcomm Incorporated | Apparatus and method for a secure broadcast system |
US8724803B2 (en) | 2003-09-02 | 2014-05-13 | Qualcomm Incorporated | Method and apparatus for providing authenticated challenges for broadcast-multicast communications in a communication system |
EP1698176A1 (fr) * | 2003-12-23 | 2006-09-06 | Viaccess | Procede et systeme d'acces conditionnel applique a la protection de contenu |
TW200603629A (en) * | 2004-04-22 | 2006-01-16 | Nagravision Sa | Method for processing contents intended for diffusion |
CN1722659B (zh) * | 2004-07-13 | 2011-02-23 | 耶德托存取公司 | 处理多路复用中的数据的方法和***以及解码多路复用的数据流的方法和*** |
US8359332B1 (en) | 2004-08-02 | 2013-01-22 | Nvidia Corporation | Secure content enabled drive digital rights management system and method |
US8402283B1 (en) | 2004-08-02 | 2013-03-19 | Nvidia Corporation | Secure content enabled drive system and method |
US8875309B1 (en) | 2004-12-15 | 2014-10-28 | Nvidia Corporation | Content server and method of providing content therefrom |
US8788425B1 (en) | 2004-12-15 | 2014-07-22 | Nvidia Corporation | Method and system for accessing content on demand |
US8751825B1 (en) * | 2004-12-15 | 2014-06-10 | Nvidia Corporation | Content server and method of storing content |
US8346807B1 (en) | 2004-12-15 | 2013-01-01 | Nvidia Corporation | Method and system for registering and activating content |
US8893299B1 (en) | 2005-04-22 | 2014-11-18 | Nvidia Corporation | Content keys for authorizing access to content |
EP1742473A1 (fr) * | 2005-07-06 | 2007-01-10 | Nagra France Sarl | Méthode de transmission d'un flux de données numériques et de messages de contrôle associés audit flux à destination d'équipements mobiles |
EP1798975A1 (fr) * | 2005-12-15 | 2007-06-20 | Nagra France Sarl | Procede de chiffrement et de dechiffrement d'un contenu a access conditionnel |
ATE451791T1 (de) * | 2006-01-03 | 2009-12-15 | Irdeto Access Bv | Verfahren zur entschlüsselung eines verschlüsselten datenobjekts |
EP1821538A1 (en) * | 2006-02-15 | 2007-08-22 | Irdeto Access B.V. | Method and system providing scrambled content |
US20080270311A1 (en) * | 2007-04-27 | 2008-10-30 | General Instrument Corporation | Method and Apparatus for Composing a Digital Rights Management License Format |
US8590028B2 (en) | 2007-07-09 | 2013-11-19 | Infosys Limited | Content licensing and conditional access using a mobile device |
US8068608B2 (en) * | 2007-12-17 | 2011-11-29 | Broadcom Corporation | Video processing system for scrambling video streams with dependent portions and methods for use therewith |
CN101516022B (zh) * | 2008-02-21 | 2010-12-08 | 上海明波通信技术有限公司 | 传输流模式加密信息信道解码的方法 |
EP2192773A1 (en) * | 2008-12-01 | 2010-06-02 | Irdeto Access B.V. | Content decryption device and encryption system using an additional key layer |
US7880990B2 (en) * | 2008-12-10 | 2011-02-01 | Hitachi Global Storage Technologies Netherlands B.V. | Patterned-media magnetic recording disk with cryptographically scrambled patterns and disk drive operable with the disk |
KR101133256B1 (ko) * | 2009-02-27 | 2012-04-09 | 한국과학기술원 | 시그니처 정보를 이용한 물리계층에서의 타임스탬프 처리장치 및 그 방법 |
FR2953672A1 (fr) * | 2009-12-08 | 2011-06-10 | France Telecom | Procede de dechiffrement de donnees par un equipement utilisateur comportant un terminal et un module de securite |
CN102714594B (zh) * | 2009-12-14 | 2016-08-10 | 住友电气工业株式会社 | 内容接收设备、内容再现设备、内容接收和再现设备、内容接收方法和程序 |
US8687807B2 (en) | 2011-01-26 | 2014-04-01 | Nagrastar, L.L.C. | Cascading dynamic crypto periods |
US10104406B2 (en) | 2013-06-21 | 2018-10-16 | Saturn Licensing Llc | Transmission apparatus, transmission method, reproduction apparatus, reproduction method and reception apparatus |
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JPH0743825B2 (ja) * | 1985-12-04 | 1995-05-15 | ソニー株式会社 | ダビング方式 |
TW241416B (pt) * | 1992-06-29 | 1995-02-21 | Sony Co Ltd | |
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EP1068728A1 (en) * | 1999-01-28 | 2001-01-17 | Koninklijke Philips Electronics N.V. | Transmission system |
US6725459B2 (en) * | 2001-02-09 | 2004-04-20 | Scientific-Atlanta, Inc. | Descrambling device for use in a conditional access system |
-
2000
- 2000-04-07 DE DE60040724T patent/DE60040724D1/de not_active Expired - Lifetime
- 2000-04-07 EP EP00201277A patent/EP1143722B1/en not_active Expired - Lifetime
- 2000-04-07 ES ES00201277T patent/ES2315219T3/es not_active Expired - Lifetime
-
2001
- 2001-03-21 CN CNB018061141A patent/CN1190077C/zh not_active Expired - Fee Related
- 2001-03-21 CA CA2405266A patent/CA2405266C/en not_active Expired - Fee Related
- 2001-03-21 AU AU2001260138A patent/AU2001260138B2/en not_active Ceased
- 2001-03-21 WO PCT/EP2001/003186 patent/WO2001078387A2/en active IP Right Grant
- 2001-03-21 BR BR0109835-7A patent/BR0109835A/pt not_active IP Right Cessation
- 2001-03-21 MX MXPA02009818A patent/MXPA02009818A/es active IP Right Grant
- 2001-03-21 JP JP2001575712A patent/JP4772252B2/ja not_active Expired - Fee Related
- 2001-03-21 US US10/257,219 patent/US7116892B2/en not_active Expired - Fee Related
- 2001-04-02 TW TW090107828A patent/TW540240B/zh not_active IP Right Cessation
-
2002
- 2002-04-09 HK HK02102620.2A patent/HK1041143B/zh not_active IP Right Cessation
- 2002-11-06 ZA ZA200209032A patent/ZA200209032B/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU6013801A (en) | 2001-10-23 |
HK1041143B (zh) | 2009-05-08 |
WO2001078387A2 (en) | 2001-10-18 |
EP1143722A1 (en) | 2001-10-10 |
AU2001260138B2 (en) | 2003-12-18 |
JP2003530785A (ja) | 2003-10-14 |
CN1190077C (zh) | 2005-02-16 |
MXPA02009818A (es) | 2003-03-27 |
US7116892B2 (en) | 2006-10-03 |
DE60040724D1 (de) | 2008-12-18 |
US20030152364A1 (en) | 2003-08-14 |
HK1041143A1 (en) | 2002-06-28 |
CA2405266C (en) | 2010-05-25 |
WO2001078387A3 (en) | 2002-10-24 |
CN1421097A (zh) | 2003-05-28 |
ZA200209032B (en) | 2003-08-28 |
CA2405266A1 (en) | 2001-10-18 |
ES2315219T3 (es) | 2009-04-01 |
EP1143722B1 (en) | 2008-11-05 |
TW540240B (en) | 2003-07-01 |
JP4772252B2 (ja) | 2011-09-14 |
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