ES2193705T3 - Red de comunicaciones. - Google Patents

Red de comunicaciones.

Info

Publication number
ES2193705T3
ES2193705T3 ES99921688T ES99921688T ES2193705T3 ES 2193705 T3 ES2193705 T3 ES 2193705T3 ES 99921688 T ES99921688 T ES 99921688T ES 99921688 T ES99921688 T ES 99921688T ES 2193705 T3 ES2193705 T3 ES 2193705T3
Authority
ES
Spain
Prior art keywords
dbs
respect
encrypted
receiver unit
encryption scheme
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.)
Expired - Lifetime
Application number
ES99921688T
Other languages
English (en)
Inventor
Harold Aaron Ludtke
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.)
Sony Electronics Inc
Original Assignee
Sony Electronics Inc
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 Sony Electronics Inc filed Critical Sony Electronics Inc
Application granted granted Critical
Publication of ES2193705T3 publication Critical patent/ES2193705T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H04N21/23—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
    • 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
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40052—High-speed IEEE 1394 serial bus
    • H04L12/40104—Security; Encryption; Content protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40052—High-speed IEEE 1394 serial bus
    • H04L12/40117—Interconnection of audio or video/imaging devices
    • 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
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43607—Interfacing a plurality of external cards, e.g. through a DVB Common Interface [DVB-CI]
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2805—Home Audio Video Interoperability [HAVI] networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2838—Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Photovoltaic Devices (AREA)
  • Silicon Compounds (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Una red (200) de comunicaciones, para poner en práctica un acceso condicional, CA, distribuido, en un entorno de radiodifusión digital, que comprende: a) una unidad (210) receptora para recibir información desde un proveedor de servicios y acoplada a una red de comunicaciones digital en serie, comprendiendo la citada unidad (210) receptora: a1) un primer sintonizador (212), para generar, a partir de dicha información recibida, una primera señal digital codificada bajo un primer formato de encriptación; a2) un segundo sintonizador (214), para generar, a partir de dicha información recibida, datos fuera de banda OOB, en el que dicha primera señal digital y dichos datos OOB son transmitidos por la citada red de comunicación en serie, y b) una primera unidad (220) de CA, acoplada a la citada red de comunicaciones en serie, para recibir dicha primera señal digital y los citados datos OOB, estando prevista dicha primera unidad (220) de CA para generar, a partir de la citada primera señal digital,una primera señal digital desencriptada, DDS, en base a los datos OOB citados y a dicho primer formato de encriptación, estando también prevista la citada primera unidad (220) de CA para transmitir dicha primera DDS por la citada red de comunicaciones en serie.
ES99921688T 1998-05-06 1999-05-05 Red de comunicaciones. Expired - Lifetime ES2193705T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8451198P 1998-05-06 1998-05-06
US09/232,019 US6154206A (en) 1998-05-06 1999-01-14 Method and apparatus for distributed conditional access control on a serial communication network

Publications (1)

Publication Number Publication Date
ES2193705T3 true ES2193705T3 (es) 2003-11-01

Family

ID=26771064

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99921688T Expired - Lifetime ES2193705T3 (es) 1998-05-06 1999-05-05 Red de comunicaciones.

Country Status (9)

Country Link
US (1) US6154206A (es)
EP (1) EP1078510B1 (es)
JP (1) JP4394833B2 (es)
KR (1) KR100600484B1 (es)
AT (1) ATE233457T1 (es)
AU (1) AU3882899A (es)
DE (1) DE69905564T2 (es)
ES (1) ES2193705T3 (es)
WO (1) WO1999057889A1 (es)

Families Citing this family (121)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8584255B2 (en) * 1999-05-05 2013-11-12 Sony United Kingdom Limited Networked conditional access module
GB9809685D0 (en) * 1998-05-06 1998-07-01 Sony Uk Ltd Ncam AV/C CTS subunit proposal
CN1867068A (zh) 1998-07-14 2006-11-22 联合视频制品公司 交互式电视节目导视系统及其方法
US6859799B1 (en) 1998-11-30 2005-02-22 Gemstar Development Corporation Search engine for video and graphics
US7730300B2 (en) 1999-03-30 2010-06-01 Sony Corporation Method and apparatus for protecting the transfer of data
US6697489B1 (en) 1999-03-30 2004-02-24 Sony Corporation Method and apparatus for securing control words
US7071995B1 (en) * 1999-05-28 2006-07-04 Thomson Licensing Adaptive video image information processing system
US6912513B1 (en) * 1999-10-29 2005-06-28 Sony Corporation Copy-protecting management using a user scrambling key
JP3655510B2 (ja) * 1999-10-29 2005-06-02 株式会社東芝 ネットワーク接続装置、通信装置及びネットワーク接続方法
US7039614B1 (en) 1999-11-09 2006-05-02 Sony Corporation Method for simulcrypting scrambled data to a plurality of conditional access devices
MXPA02005434A (es) * 1999-12-03 2002-11-29 Thomson Licensing Sa Un sistema de procesamiento de informacion de imagen de video adaptivo.
US7298846B2 (en) 1999-12-13 2007-11-20 Scientific-Atlanta, Inc. Method of identifying multiple digital streams within a multiplexed signal
DE60027052T2 (de) * 1999-12-14 2006-09-28 Motorola, Inc. Verfahren und system zum auswählen von in-band-kanälen und zur identifizierung durch rückkanalen
US6757909B1 (en) * 1999-12-29 2004-06-29 Sony Corporation Internet set-top box having an in-band tuner and cable modem
US7146007B1 (en) * 2000-03-29 2006-12-05 Sony Corporation Secure conditional access port interface
GB0012331D0 (en) * 2000-05-23 2000-07-12 Harris Charles G Decoders
US6772434B1 (en) * 2000-05-24 2004-08-03 The Directv Group, Inc. Device and method for the integrated presentation of a secondary service as a part of a primary service
US6898285B1 (en) 2000-06-02 2005-05-24 General Instrument Corporation System to deliver encrypted access control information to support interoperability between digital information processing/control equipment
GB0013324D0 (en) * 2000-06-02 2000-07-26 Pace Micro Tech Plc Improvements to broadcast data receiver and data transmission apparatus
US20030206631A1 (en) * 2000-06-22 2003-11-06 Candelore Brant L. Method and apparatus for scrambling program data for furture viewing
FR2811783B1 (fr) * 2000-07-13 2002-10-04 Thomson Multimedia Sa Systeme et procede d'adressage d'une unite centrale d'un appareillage multi-dispositifs et appareillage correspondant
US7457414B1 (en) 2000-07-21 2008-11-25 The Directv Group, Inc. Super encrypted storage and retrieval of media programs with smartcard generated keys
US7203314B1 (en) 2000-07-21 2007-04-10 The Directv Group, Inc. Super encrypted storage and retrieval of media programs with modified conditional access functionality
US8140859B1 (en) 2000-07-21 2012-03-20 The Directv Group, Inc. Secure storage and replay of media programs using a hard-paired receiver and storage device
US7203311B1 (en) 2000-07-21 2007-04-10 The Directv Group, Inc. Super encrypted storage and retrieval of media programs in a hard-paired receiver and storage device
FR2812781A1 (fr) 2000-08-04 2002-02-08 Thomson Multimedia Sa Methode de distribution securisee de donnees numeriques representatives d'un contenu multimedia
US7103906B1 (en) 2000-09-29 2006-09-05 International Business Machines Corporation User controlled multi-device media-on-demand system
US20020042754A1 (en) * 2000-10-10 2002-04-11 Del Beccaro David J. System and method for receiving broadcast audio/video works and for enabling a consumer to purchase the received audio/video works
CN100397899C (zh) 2000-10-11 2008-06-25 联合视频制品公司 提供数据存储到点播媒体传递系统中服务器上的系统和方法
US6686880B1 (en) * 2000-10-25 2004-02-03 Xm Satellite Radio, Inc. Method and apparatus for prompting a reverse channel response from receiver in a digital broadcast system
GB0026207D0 (en) * 2000-10-26 2000-12-13 Koninkl Philips Electronics Nv Decoder expansion system
US7508454B1 (en) 2000-11-16 2009-03-24 Smardtv Sa Digital television conditional access methods and apparatus for simultaneously handling multiple television programs
WO2002041625A1 (en) * 2000-11-17 2002-05-23 Scm Microsystems Gmbh Digital television conditional access methods and apparatus for simultaneously handling multiple television programs
JP2002164898A (ja) * 2000-11-24 2002-06-07 Matsushita Electric Ind Co Ltd データ送受信装置及びデータ送受信方法
US20020083470A1 (en) * 2000-12-21 2002-06-27 Philips Electronics North America Corporation System and method for sending out-of-band service information to a host device
GB0031437D0 (en) * 2000-12-22 2001-02-07 Koninkl Philips Electronics Nv Distributed digital television system and related method
US8677423B2 (en) 2000-12-28 2014-03-18 At&T Intellectual Property I, L. P. Digital residential entertainment system
US8601519B1 (en) * 2000-12-28 2013-12-03 At&T Intellectual Property I, L.P. Digital residential entertainment system
SE0004936D0 (sv) * 2000-12-29 2000-12-29 Nokia Corp Common interface module and method related thereto
KR20030090741A (ko) * 2001-04-16 2003-11-28 톰슨 라이센싱 에스.에이. 1394 디스크램블링 모듈을 구비한 디지털 케이블 준비시스템
US20030056213A1 (en) * 2001-05-16 2003-03-20 Mcfaddin James E. Method and system for delivering a composite information stream over a computer network
US7386129B2 (en) * 2001-05-30 2008-06-10 Digeo, Inc. System and method for multimedia content simulcast
CN1513258A (zh) * 2001-06-05 2004-07-14 �ʼҷ����ֵ������޹�˾ 接口单元
US7895616B2 (en) 2001-06-06 2011-02-22 Sony Corporation Reconstitution of program streams split across multiple packet identifiers
US7139398B2 (en) 2001-06-06 2006-11-21 Sony Corporation Time division partial encryption
US7747853B2 (en) 2001-06-06 2010-06-29 Sony Corporation IP delivery of secure digital content
US7383561B2 (en) * 2001-06-29 2008-06-03 Nokia Corporation Conditional access system
US7574723B2 (en) * 2001-07-19 2009-08-11 Macrovision Corporation Home media network
ES2295105T3 (es) * 2001-07-26 2008-04-16 Irdeto Access B.V. Sistema para la validacion de tiempo horario.
KR100403889B1 (ko) * 2001-08-02 2003-11-03 전자부품연구원 디지털 유선방송을 위한 피오디 모듈의 ｏｏｂ 물리층처리장치
US7463737B2 (en) * 2001-08-15 2008-12-09 Digeo, Inc. System and method for conditional access key encryption
WO2003028287A1 (en) 2001-09-21 2003-04-03 Hughes Electronics Corporation Method and apparatus for controlling paired operation of a conditional access module and an integrated receiver and decoder
US7409562B2 (en) 2001-09-21 2008-08-05 The Directv Group, Inc. Method and apparatus for encrypting media programs for later purchase and viewing
WO2003042988A1 (en) * 2001-11-15 2003-05-22 Sony Corporation System and method for controlling the use and duplication of digital content distributed on removable media
US6857490B2 (en) * 2001-12-11 2005-02-22 Robert T. Quigg Stair-climbing wheelchair
US7765567B2 (en) 2002-01-02 2010-07-27 Sony Corporation Content replacement by PID mapping
US7823174B2 (en) 2002-01-02 2010-10-26 Sony Corporation Macro-block based content replacement by PID mapping
WO2003063465A2 (en) * 2002-01-16 2003-07-31 Aviom, Inc. System and method for transmitting audio or video data using multiple levels of protection
US20040114758A1 (en) * 2002-04-15 2004-06-17 Carlsgaard Eric Stephen Digital system prepared for coble with 1394 de-scrambling module
US8818896B2 (en) 2002-09-09 2014-08-26 Sony Corporation Selective encryption with coverage encryption
US8931010B2 (en) * 2002-11-04 2015-01-06 Rovi Solutions Corporation Methods and apparatus for client aggregation of media in a networked media system
US8572408B2 (en) 2002-11-05 2013-10-29 Sony Corporation Digital rights management of a digital device
US7724907B2 (en) 2002-11-05 2010-05-25 Sony Corporation Mechanism for protecting the transfer of digital content
US7134089B2 (en) * 2002-11-13 2006-11-07 Microsoft Corporation Directional focus navigation
US7225458B2 (en) * 2002-11-21 2007-05-29 The Directv Group, Inc. Method and apparatus for ensuring reception of conditional access information in multi-tuner receivers
US7000241B2 (en) * 2002-11-21 2006-02-14 The Directv Group, Inc. Method and apparatus for minimizing conditional access information overhead while ensuring conditional access information reception in multi-tuner receivers
CA2506598A1 (en) * 2002-11-27 2004-07-01 Rgb Networks, Inc. Method and apparatus for time-multiplexed processing of multiple digital video programs
KR100452399B1 (ko) * 2002-12-12 2004-10-08 한국전자통신연구원 디지털 케이블 방송에서의 패키지 서비스 관리 시스템 및그 방법
US8667525B2 (en) 2002-12-13 2014-03-04 Sony Corporation Targeted advertisement selection from a digital stream
US8645988B2 (en) 2002-12-13 2014-02-04 Sony Corporation Content personalization for digital content
US7493646B2 (en) 2003-01-30 2009-02-17 United Video Properties, Inc. Interactive television systems with digital video recording and adjustable reminders
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
US7574691B2 (en) * 2003-03-17 2009-08-11 Macrovision Corporation Methods and apparatus for rendering user interfaces and display information on remote client devices
US7213228B2 (en) * 2003-03-17 2007-05-01 Macrovision Corporation Methods and apparatus for implementing a remote application over a network
CA2537294C (en) * 2003-08-29 2015-05-12 Rgb Networks, Inc. Video multiplexer system providing low-latency vcr-like effects and program changes
CA2542624C (en) * 2003-10-16 2015-06-16 Maxxian Technology Inc. Method and system for detecting and preventing unauthorized signal usage in a content delivery network
US8191160B2 (en) * 2003-10-16 2012-05-29 Rene Juneau Method and system for auditing and correcting authorization inconsistencies for reception equipment in a content delivery network
US7853980B2 (en) 2003-10-31 2010-12-14 Sony Corporation Bi-directional indices for trick mode video-on-demand
US20050147247A1 (en) * 2003-11-14 2005-07-07 Westberg Thomas E. Interactive television systems having POD modules and methods for use in the same
US20050132405A1 (en) * 2003-12-15 2005-06-16 Microsoft Corporation Home network media server with a jukebox for enhanced user experience
US7548624B2 (en) 2004-01-16 2009-06-16 The Directv Group, Inc. Distribution of broadcast content for remote decryption and viewing
US7580523B2 (en) 2004-01-16 2009-08-25 The Directv Group, Inc. Distribution of video content using client to host pairing of integrated receivers/decoders
US7599494B2 (en) 2004-01-16 2009-10-06 The Directv Group, Inc. Distribution of video content using a trusted network key for sharing content
WO2005084024A1 (en) * 2004-02-18 2005-09-09 Thomson Licensing S.A. Method and apparatus for optimizing bandwidth in broadcast/multicast video systems
US7849064B2 (en) 2004-04-23 2010-12-07 Tvworks, Llc Application programming interface combining asset listings
US11336971B2 (en) 2004-04-23 2022-05-17 Comcast Cable Communications Management, Llc Application programming interface combining asset listings
US7908295B2 (en) * 2004-04-23 2011-03-15 Tvworks, Llc Extending data records for dynamic data and selective acceptance based on hardware profile
US7590243B2 (en) 2004-05-04 2009-09-15 The Directv Group, Inc. Digital media conditional access system for handling digital media content
WO2006017330A2 (en) * 2004-07-13 2006-02-16 Matsushita Electric Industrial Co. Ltd. Video-on-demand session mobility in a home network
KR100631735B1 (ko) * 2004-07-14 2006-10-09 삼성전자주식회사 멀티미디어 데이터 거래 시스템 및 방법
US8086575B2 (en) 2004-09-23 2011-12-27 Rovi Solutions Corporation Methods and apparatus for integrating disparate media formats in a networked media system
US8671457B2 (en) * 2004-10-15 2014-03-11 Maxxian Technology Inc. Method and system for identifying and correcting location discrepancies for reception equipment in a content delivery network
US20060130110A1 (en) * 2004-12-13 2006-06-15 Yong-Seong Cho Apparatus for receiving MPEG-2 A/V data using cable modem
US7895617B2 (en) 2004-12-15 2011-02-22 Sony Corporation Content substitution editor
US8041190B2 (en) 2004-12-15 2011-10-18 Sony Corporation System and method for the creation, synchronization and delivery of alternate content
US7436792B1 (en) * 2005-01-03 2008-10-14 Paul Diamond For-fee distribution of consumer-selected content items between different satellite radio service providers
US7768388B2 (en) 2005-01-05 2010-08-03 Rovi Solutions Corporation Methods and apparatus for providing notifications in a media system
KR100636282B1 (ko) * 2005-06-30 2006-10-19 삼성전자주식회사 디지털 방송 시스템에서의 채널 전환 장치 및 방법
US20070011704A1 (en) * 2005-07-05 2007-01-11 Anglin Richard L Jr Content exchange system
US9325944B2 (en) 2005-08-11 2016-04-26 The Directv Group, Inc. Secure delivery of program content via a removable storage medium
US9467322B2 (en) * 2005-12-27 2016-10-11 Rovi Solutions Corporation Methods and apparatus for integrating media across a wide area network
US8607287B2 (en) 2005-12-29 2013-12-10 United Video Properties, Inc. Interactive media guidance system having multiple devices
US9681105B2 (en) 2005-12-29 2017-06-13 Rovi Guides, Inc. Interactive media guidance system having multiple devices
US8185921B2 (en) 2006-02-28 2012-05-22 Sony Corporation Parental control of displayed content using closed captioning
US8095466B2 (en) 2006-05-15 2012-01-10 The Directv Group, Inc. Methods and apparatus to conditionally authorize content delivery at content servers in pay delivery systems
US8996421B2 (en) 2006-05-15 2015-03-31 The Directv Group, Inc. Methods and apparatus to conditionally authorize content delivery at broadcast headends in pay delivery systems
US8001565B2 (en) 2006-05-15 2011-08-16 The Directv Group, Inc. Methods and apparatus to conditionally authorize content delivery at receivers in pay delivery systems
US7992175B2 (en) 2006-05-15 2011-08-02 The Directv Group, Inc. Methods and apparatus to provide content on demand in content broadcast systems
US8775319B2 (en) 2006-05-15 2014-07-08 The Directv Group, Inc. Secure content transfer systems and methods to operate the same
US7929551B2 (en) * 2006-06-01 2011-04-19 Rovi Solutions Corporation Methods and apparatus for transferring media across a network using a network interface device
US9225761B2 (en) 2006-08-04 2015-12-29 The Directv Group, Inc. Distributed media-aggregation systems and methods to operate the same
US9178693B2 (en) 2006-08-04 2015-11-03 The Directv Group, Inc. Distributed media-protection systems and methods to operate the same
US20080294561A1 (en) * 2007-05-22 2008-11-27 Microsoft Corporation Media content deciphered when initiated for playback
US20090019492A1 (en) 2007-07-11 2009-01-15 United Video Properties, Inc. Systems and methods for mirroring and transcoding media content
US8601526B2 (en) 2008-06-13 2013-12-03 United Video Properties, Inc. Systems and methods for displaying media content and media guidance information
US20090316892A1 (en) * 2008-06-20 2009-12-24 Candelore Brant L Crypto micro-module using IEEE 1394 for stream descrambling
US10063934B2 (en) 2008-11-25 2018-08-28 Rovi Technologies Corporation Reducing unicast session duration with restart TV
US9014546B2 (en) 2009-09-23 2015-04-21 Rovi Guides, Inc. Systems and methods for automatically detecting users within detection regions of media devices
US8805418B2 (en) 2011-12-23 2014-08-12 United Video Properties, Inc. Methods and systems for performing actions based on location-based rules
EP2829077A1 (en) * 2012-03-19 2015-01-28 SmarDTV S.A. A system and method for networking conditional access functionalities
US9674563B2 (en) 2013-11-04 2017-06-06 Rovi Guides, Inc. Systems and methods for recommending content

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4599647A (en) * 1983-11-03 1986-07-08 General Instrument Corporation Receiver with interface for interaction with controller-decoder
US5058160A (en) * 1988-04-29 1991-10-15 Scientific-Atlanta, Inc. In-band controller
NL8900307A (nl) * 1989-02-08 1990-09-03 Philips Nv Publiek communicatiesysteem met gedistribueerde stations, alsmede station en substations voor gebruik in zo een communicatiesysteem.
RU2153234C2 (ru) * 1992-12-09 2000-07-20 Дискавери Коммьюникейшнз, Инк. Устройство для использования в головной станции системы кабельного телевидения (варианты) и способ распределения программ абонентам в системе кабельного телевидения
US5784095A (en) * 1995-07-14 1998-07-21 General Instrument Corporation Digital audio system with video output program guide
US5771064A (en) * 1995-11-29 1998-06-23 Scientific-Atlanta, Inc. Home communications terminal having an applications module
HRP970160A2 (en) * 1996-04-03 1998-02-28 Digco B V Method for providing a secure communication between two devices and application of this method
FR2769779B1 (fr) * 1997-10-14 1999-11-12 Thomson Multimedia Sa Procede de controle d'acces a un reseau domestique et dispositif mettant en oeuvre le procede

Also Published As

Publication number Publication date
DE69905564T2 (de) 2003-12-11
WO1999057889A1 (en) 1999-11-11
KR100600484B1 (ko) 2006-07-13
ATE233457T1 (de) 2003-03-15
AU3882899A (en) 1999-11-23
DE69905564D1 (de) 2003-04-03
EP1078510B1 (en) 2003-02-26
EP1078510A1 (en) 2001-02-28
JP2002514859A (ja) 2002-05-21
US6154206A (en) 2000-11-28
JP4394833B2 (ja) 2010-01-06
KR20010052303A (ko) 2001-06-25

Similar Documents

Publication Publication Date Title
ES2193705T3 (es) Red de comunicaciones.
EP0891670B1 (en) Method for providing a secure communication between two devices and application of this method
EP0787391B1 (en) Conditional access system
US7698568B2 (en) System and method for using DRM to control conditional access to broadband digital content
US6266415B1 (en) Process for protecting an information item transmitted from a security element to a decoder and protection system using such a process
CA2173176C (en) Data security scheme for point-to-point communication sessions
CA1237779A (en) Transmitter/receiver for signals on the scramble unit
JP4913989B2 (ja) ブロードキャストディジタルデータ受信システム
KR950026251A (ko) 디지털신호에 따른 억세스를 제어하기 위한 방법과 장치
JPH04286434A (ja) 安全な通信網を保つための端末の機能更新方法とその装置
KR100709318B1 (ko) 디지털 방송을 위한 수신제한서비스 키 할당 방법 및 시스템
KR20080014929A (ko) Ｄｒｍ을 이용하여 광대역 디지털 콘텐츠에 대한 조건부접근을 제어하는 시스템 및 방법
GB2140656A (en) Television transmission system
EP0179612A2 (en) Cryptographic system for direct broadcast satellite network
US7836300B2 (en) Security integrated circuit
KR20040075930A (ko) 시간 의존 조건부 액세스 제공 시스템
US4636854A (en) Transmission system
KR20050090399A (ko) 디지털 유료 텔레비젼의 액세스 제어 방법
JP4521392B2 (ja) デコーダ及びスマートカードに関連した有料テレビジョンシステム、そのようなシステムにおける権利失効方法、及びそのようなデコーダに送信されたメッセージ
KR100546526B1 (ko) 정보 출력 장치 및 정보 출력 방법
JPH0220188A (ja) ペイテレビ受信装置
JPH10178629A (ja) 限定受信放送受信装置
US4651205A (en) Television transmission system
CA2250833C (en) Method for providing a secure communication between two devices and application of this method
KR20020070124A (ko) 복수의 운용자들로부터 스크램블된 신호들을 수신하기위한 소형 저가 시스템