CA2396821A1 - Acces conditionnel a des systemes video sur demande et securite associee - Google Patents

Acces conditionnel a des systemes video sur demande et securite associee Download PDF

Info

Publication number
CA2396821A1
CA2396821A1 CA002396821A CA2396821A CA2396821A1 CA 2396821 A1 CA2396821 A1 CA 2396821A1 CA 002396821 A CA002396821 A CA 002396821A CA 2396821 A CA2396821 A CA 2396821A CA 2396821 A1 CA2396821 A1 CA 2396821A1
Authority
CA
Canada
Prior art keywords
video
key
subscriber station
services
service
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
Application number
CA002396821A
Other languages
English (en)
Inventor
Michael C. Bertram
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.)
Sedna Patent Services LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2396821A1 publication Critical patent/CA2396821A1/fr
Abandoned 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]
    • H04N21/40—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]
    • H04N21/20—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
    • H04N21/25866—Management of end-user data
    • H04N21/25875—Management of end-user data involving end-user 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
    • H04N21/26613—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]
    • H04N21/40—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
    • H04N21/47—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
    • 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
    • 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
    • H04N7/17336—Handling of requests in head-ends
    • 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
    • H04N7/17345—Control of the passage of the selected programme
    • H04N7/17354—Control of the passage of the selected programme in an intermediate station common to a plurality of user terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Graphics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un système qui offre une transmission en toute sécurité et un contrôle total d'accès pour des dispositifs cibles. Ce système comprend notamment un centre de distribution, un système vidéo sur demande, un réseau de transmission et plusieurs dispositifs cibles. Le système vidéo sur demande est intéressant en ce qu'il permet le chiffrement de la transmission, la transmission de clés d'accès et le contrôle d'accès. Les dispositifs cibles comportent également des circuits permettant de communiquer avec le serveur vidéo, de déchiffrer la transmission et de contrôler l'accès à des services vidéo. Un procédé permettant d'assurer, à des stations abonnées, un accès conditionnel à des services vidéo, consiste à autoriser ces stations à recevoir les services vidéo; à recevoir, d'une première station abonnée, une première commande d'un premier service vidéo; et à transmettre, à ladite première station, des données de réglage afin de lui permettre de recevoir le premier service vidéo. Le procédé permet également d'empêcher le vol du contenu des transmissions grâce aux mesures suivantes: brouillage du premier service vidéo au moyen d'une première clé qui produit un premier service vidéo brouillé; brouillage de la première clé au moyen des données de chiffrement pour produire une première clé brouillée; distribution des données de chiffrement permettant à la pluralité de stations abonnées de déchiffrer la première clé brouillée; transmission du premier service vidéo brouillé à la pluralité de stations abonnées; et transmission de la première clé brouillée à la pluralité de stations abonnées.
CA002396821A 2000-01-14 2001-01-12 Acces conditionnel a des systemes video sur demande et securite associee Abandoned CA2396821A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US48306600A 2000-01-14 2000-01-14
US09/483,066 2000-01-14
PCT/US2001/001173 WO2001052543A1 (fr) 2000-01-14 2001-01-12 Acces conditionnel a des systemes video sur demande et securite associee

Publications (1)

Publication Number Publication Date
CA2396821A1 true CA2396821A1 (fr) 2001-07-19

Family

ID=23918499

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002396821A Abandoned CA2396821A1 (fr) 2000-01-14 2001-01-12 Acces conditionnel a des systemes video sur demande et securite associee

Country Status (4)

Country Link
EP (1) EP1247399A1 (fr)
AU (1) AU2001232794A1 (fr)
CA (1) CA2396821A1 (fr)
WO (1) WO2001052543A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7984463B2 (en) 2002-03-29 2011-07-19 Starz Entertainment, Llc Instant video on demand playback
US8806549B1 (en) 1999-10-13 2014-08-12 Starz Entertainment, Llc Pre-storing a portion of a program to allow user control of playback
US6983480B1 (en) 1999-10-13 2006-01-03 Starz Entertainment Group Llc Method for authorizing limited programming distribution
US8020186B1 (en) 1999-10-13 2011-09-13 Starz Entertainment, Llc Methods and systems for distributing on-demand programming
JP2003533075A (ja) * 1999-12-22 2003-11-05 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 データコンテンツへのアクセスを制御する条件付きアクセスシステム
US8707357B1 (en) 2001-04-23 2014-04-22 Starz Entertainment, Llc Thematic VOD navigation
US7739707B2 (en) 2001-11-20 2010-06-15 Starz Entertainment, Llc Parental controls using view limits
US7464392B2 (en) 2001-11-20 2008-12-09 Starz Encore Group Llc Viewing limit controls
US7486792B2 (en) 2002-08-23 2009-02-03 General Instrument Corporation Terrestrial broadcast copy protection system for digital television
GB2413026B (en) * 2003-02-12 2006-03-22 Video Networks Ltd System for capture and selective playback of broadcast programmes
WO2004075551A1 (fr) * 2003-02-21 2004-09-02 Alif R & D Sdn Bhd Systeme et procede destines a fournir des services de videotransmission securises
SE0301728D0 (sv) * 2003-06-13 2003-06-13 Television And Wireless Applic Adapter arrangement, method, system and user terminal for conditional access
US7827573B2 (en) 2004-04-05 2010-11-02 Comcast Cable Holdings, Llc Method and system for provisioning a set-top box
US8566894B2 (en) 2006-02-10 2013-10-22 Scott W. Lewis Method and system for distribution of media
US9740552B2 (en) 2006-02-10 2017-08-22 Percept Technologies Inc. Method and system for error correction utilized with a system for distribution of media
US8451850B2 (en) 2006-02-10 2013-05-28 Scott W. Lewis Method and system for distribution of media including a gigablock

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5870474A (en) * 1995-12-04 1999-02-09 Scientific-Atlanta, Inc. Method and apparatus for providing conditional access in connection-oriented, interactive networks with a multiplicity of service providers
US4430669A (en) * 1981-05-29 1984-02-07 Payview Limited Transmitting and receiving apparatus for permitting the transmission and reception of multi-tier subscription programs
EP0148235B1 (fr) * 1983-06-30 1988-10-05 Independent Broadcasting Authority Systeme de television a emission chiffree
JPS60253386A (ja) * 1984-05-30 1985-12-14 Toshiba Corp ケ−ブルテレビジヨンシステムの制御装置
US4866770A (en) * 1986-07-08 1989-09-12 Scientific Atlanta, Inc. Method and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication system
US5247364A (en) * 1991-11-29 1993-09-21 Scientific-Atlanta, Inc. Method and apparatus for tuning data channels in a subscription television system having in-band data transmissions
US5627892A (en) * 1995-04-19 1997-05-06 General Instrument Corporation Of Delaware Data security scheme for point-to-point communication sessions
BR9815600A (pt) * 1997-08-01 2004-06-29 Scientific Atlanta Método e aparelho para o encapsulamento de uma autorização de habilitação em um sistema de acesso condicional
DE69802540T2 (de) * 1997-08-01 2002-05-23 Scientific Atlanta System mit bedingtem zugang
US6118498A (en) * 1997-09-26 2000-09-12 Sarnoff Corporation Channel scanning and channel change latency reduction in an ATSC television receiver

Also Published As

Publication number Publication date
EP1247399A1 (fr) 2002-10-09
WO2001052543A1 (fr) 2001-07-19
AU2001232794A1 (en) 2001-07-24
WO2001052543A8 (fr) 2001-08-16

Similar Documents

Publication Publication Date Title
US20220021930A1 (en) Reduced Hierarchy Key Management System and Method
CA2173176C (fr) Systeme de securite pour la transmission de donnees de point a point
US9467658B2 (en) Method and apparatus for protecting the transfer of data
KR101059624B1 (ko) 조건부 액세스 개인용 비디오 레코더
EP1618666B1 (fr) Procede et dispositif de protection de transfert de donnees
US7565546B2 (en) System, method and apparatus for secure digital content transmission
US8385545B2 (en) Secure content key distribution using multiple distinct methods
US20040126093A1 (en) Conditional access system and method prevention of replay attacks
US20040083177A1 (en) Method and apparatus for pre-encrypting VOD material with a changing cryptographic key
US8160248B2 (en) Authenticated mode control
US20070143854A1 (en) Control of Enhanced Application Features Via A Conditional Access System
US8693692B2 (en) Direct delivery of content descrambling keys using chip-unique code
CA2396821A1 (fr) Acces conditionnel a des systemes video sur demande et securite associee
JP4802699B2 (ja) Ｖｏｄプリスクランブルシステムにおける限定受信制御方法、限定受信制御システムおよび限定受信制御装置
EP1534011A1 (fr) Système et procédé assurant la fourniture à la demande de contenus pre-cryptés par la suppression du message de commande d'admissibilité

Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued
FZDE Discontinued

Effective date: 20101018