DE3789178D1 - Dekodierung übertragener verschleierter Signale. - Google Patents

Dekodierung übertragener verschleierter Signale.

Info

Publication number
DE3789178D1
DE3789178D1 DE87201500T DE3789178T DE3789178D1 DE 3789178 D1 DE3789178 D1 DE 3789178D1 DE 87201500 T DE87201500 T DE 87201500T DE 3789178 T DE3789178 T DE 3789178T DE 3789178 D1 DE3789178 D1 DE 3789178D1
Authority
DE
Germany
Prior art keywords
veiled
signals
decoding transmitted
decoding
transmitted
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
DE87201500T
Other languages
English (en)
Other versions
DE3789178T2 (de
Inventor
Gerald Offley Crowther
Peter Robert Brennand
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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
Priority claimed from GB868619737A external-priority patent/GB8619737D0/en
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE3789178D1 publication Critical patent/DE3789178D1/de
Publication of DE3789178T2 publication Critical patent/DE3789178T2/de
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
    • 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
    • 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
    • H04N21/43—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
    • H04N21/47—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
    • H04N21/47211—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 pay-per-view content
    • 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
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)
DE3789178T 1986-08-13 1987-08-06 Dekodierung übertragener verschleierter Signale. Expired - Lifetime DE3789178T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868619737A GB8619737D0 (en) 1986-08-13 1986-08-13 Business management
GB08625487A GB2193867A (en) 1986-08-13 1986-10-24 Decoding transmitted scrambled signals in a pay television system

Publications (2)

Publication Number Publication Date
DE3789178D1 true DE3789178D1 (de) 1994-04-07
DE3789178T2 DE3789178T2 (de) 1994-08-25

Family

ID=26291169

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3789178T Expired - Lifetime DE3789178T2 (de) 1986-08-13 1987-08-06 Dekodierung übertragener verschleierter Signale.

Country Status (5)

Country Link
US (1) US4937866A (de)
EP (1) EP0256596B1 (de)
JP (1) JPH0793621B2 (de)
DE (1) DE3789178T2 (de)
FI (1) FI83828C (de)

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US5581614A (en) * 1991-08-19 1996-12-03 Index Systems, Inc. Method for encrypting and embedding information in a video program
US5220602A (en) * 1991-12-09 1993-06-15 General Instrument Corporation NICAM compatible television signal converter
US5272752A (en) * 1992-03-16 1993-12-21 Scientific-Atlanta, Inc. Authorization code lockout mechanism for preventing unauthorized reception of transmitted data
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.
US6771617B1 (en) 1993-06-17 2004-08-03 Gilat Satellite Networks, Ltd. Frame relay protocol-based multiplex switching scheme for satellite mesh network
US5434850A (en) 1993-06-17 1995-07-18 Skydata Corporation Frame relay protocol-based multiplex switching scheme for satellite
US5825969A (en) 1994-02-18 1998-10-20 Hitachi, Ltd. Information management apparatus for inhibiting reproduction in a video cassette recorder
US5619501A (en) * 1994-04-22 1997-04-08 Thomson Consumer Electronics, Inc. Conditional access filter as for a packet video signal inverse transport system
MY125706A (en) * 1994-08-19 2006-08-30 Thomson Consumer Electronics High speed signal processing smart card
US5652795A (en) 1994-11-14 1997-07-29 Hughes Electronics Method and apparatus for an adapter card providing conditional access in a communication system
US7224798B2 (en) * 1995-04-03 2007-05-29 Scientific-Atlanta, Inc. Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system
US8548166B2 (en) * 1995-04-03 2013-10-01 Anthony J. Wasilewski Method for partially encrypting program data
US6937729B2 (en) * 1995-04-03 2005-08-30 Scientific-Atlanta, Inc. Representing entitlements to service in a conditional access system
US5953418A (en) * 1995-06-14 1999-09-14 David Hall Providing selective data broadcast receiver addressability
GB9514525D0 (en) * 1995-07-15 1995-09-13 Philips Electronics Uk Ltd Data packet handling
US5852290A (en) * 1995-08-04 1998-12-22 Thomson Consumer Electronics, Inc. Smart-card based access control system with improved security
US6035037A (en) * 1995-08-04 2000-03-07 Thomson Electronic Consumers, Inc. System for processing a video signal via series-connected high speed signal processing smart cards
NL1000964C2 (nl) * 1995-08-10 1997-02-11 Nederland Ptt Werkwijze voor het via het vercijferen/ontcijferen van berichten toegang tot informatie verschaffen, alsmede zendinrichting, alsmede ontvang- inrichting.
JP4491069B2 (ja) * 1995-10-31 2010-06-30 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 時間シフト限定アクセス
JPH10164046A (ja) * 1996-11-29 1998-06-19 Canon Inc 送信方法、受信方法、送信装置、受信装置、伝送システム及び媒体
US6542610B2 (en) * 1997-01-30 2003-04-01 Intel Corporation Content protection for digital transmission systems
US7515712B2 (en) 1997-08-01 2009-04-07 Cisco Technology, Inc. Mechanism and apparatus for encapsulation of entitlement authorization in conditional access system
US20020002675A1 (en) 1997-08-06 2002-01-03 Ronald Roscoe Bush Secure encryption of data packets for transmission over unsecured networks
US5999623A (en) * 1997-11-05 1999-12-07 Globalstar L.P. Broadcast data access controller communication system
US6304658B1 (en) * 1998-01-02 2001-10-16 Cryptography Research, Inc. Leak-resistant cryptographic method and apparatus
US7587044B2 (en) 1998-01-02 2009-09-08 Cryptography Research, Inc. Differential power analysis method and apparatus
US6738905B1 (en) 1998-04-15 2004-05-18 Digital Video Express, L.P. Conditional access via secure logging with simplified key management
US8584255B2 (en) * 1999-05-05 2013-11-12 Sony United Kingdom Limited Networked conditional access module
WO1999067919A2 (en) * 1998-06-03 1999-12-29 Cryptography Research, Inc. Improved des and other cryptographic processes with leak minimization for smartcards and other cryptosystems
US6539092B1 (en) 1998-07-02 2003-03-25 Cryptography Research, Inc. Leak-resistant cryptographic indexed key update
EP1067720A1 (de) * 1999-07-05 2001-01-10 CANAL+ Société Anonyme Verfahren und Vorrichtung für die Übertragung und für den Empfang von Mitteilungen, insbesondere in Rundfunkübertragungen
KR100875609B1 (ko) * 1999-12-22 2008-12-24 이르데토 아인드호벤 비.브이. 데이터 컨텐트에 대한 액세스를 제어하기 위한 조건부 액세스 시스템
US20020053082A1 (en) * 2000-08-03 2002-05-02 Weaver J. Dewey Method and system for program guide delivery
US7103905B2 (en) * 2000-08-28 2006-09-05 Digeo, Inc. System and method to provide media programs for synthetic channels
US8082588B2 (en) * 2002-03-15 2011-12-20 Nagravision S.A. Secured storage method of encrypted data on a personal digital recorder
EP1500272A2 (de) * 2002-04-19 2005-01-26 Koninklijke Philips Electronics N.V. System und gerät fur bedingten zugriff
AU2003233104A1 (en) * 2002-06-12 2003-12-31 Koninklijke Philips Electronics N.V. Conditional access apparatus and method
US8396216B2 (en) * 2003-11-21 2013-03-12 Howard G. Pinder Partial dual-encryption using program map tables
US8160244B2 (en) * 2004-10-01 2012-04-17 Broadcom Corporation Stateless hardware security module
EP1662789A1 (de) * 2004-11-29 2006-05-31 Nagracard S.A. Zugangskontroll-verfahren zu verschlüsselten Daten
EP1705906A1 (de) * 2005-03-04 2006-09-27 Nagravision S.A. Verfahren zur Verwaltung einer von einem Provider gesendete Programmtabelle
EP1819163A1 (de) * 2006-02-10 2007-08-15 NagraCard SA Verfahren zur Zugangskontrolle durch Vorauszahlung
US20090268910A1 (en) * 2008-04-28 2009-10-29 Samsung Electronics Co., Ltd. Apparatus and method for initialization of a scrambling sequence for a downlink reference signal in a wireless network
WO2010111447A1 (en) 2009-03-25 2010-09-30 Pacid Technologies, Llc Method and system for securing a file
TW201105083A (en) 2009-03-25 2011-02-01 Pacid Technologies Llc Token for securing communication
US8934625B2 (en) 2009-03-25 2015-01-13 Pacid Technologies, Llc Method and system for securing communication
WO2010111448A1 (en) 2009-03-25 2010-09-30 Pacid Technologies, Llc Method and system for securing communication
TW201040781A (en) 2009-03-25 2010-11-16 Pacid Technologies Llc System and method for protecting a secrets file
CN102316377B (zh) * 2010-07-06 2013-11-13 中兴通讯股份有限公司南京分公司 一种处理ecm包的方法及装置
US8479021B2 (en) 2011-09-29 2013-07-02 Pacid Technologies, Llc Secure island computing system and method

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US4621285A (en) * 1980-12-10 1986-11-04 Jerrold Division, General Instrument Corporation Protected television signal distribution system
US4484217A (en) * 1982-05-11 1984-11-20 Telease, Inc. Method and system for remote reporting, particularly for pay television billing
US4613901A (en) * 1983-05-27 1986-09-23 M/A-Com Linkabit, Inc. Signal encryption and distribution system for controlling scrambling and selective remote descrambling of television signals
US4712238A (en) * 1984-06-08 1987-12-08 M/A-Com Government Systems, Inc. Selective-subscription descrambling
DE3579785D1 (de) * 1984-10-31 1990-10-25 Sony Corp Dekodiereinrichtungen fuer gebuehrenfernsehsysteme.
US4685131A (en) * 1985-03-11 1987-08-04 General Instrument Corp. Program blocking method for use in direct broadcast satellite system
DE3688855T2 (de) * 1985-05-01 1994-03-17 Gen Instrument Corp Satellitenübertragungssystem mit Direktübertragung.

Also Published As

Publication number Publication date
JPS6348028A (ja) 1988-02-29
FI83828C (fi) 1991-08-26
EP0256596B1 (de) 1994-03-02
FI83828B (fi) 1991-05-15
DE3789178T2 (de) 1994-08-25
FI873461A0 (fi) 1987-08-10
FI873461A (fi) 1988-02-14
US4937866A (en) 1990-06-26
JPH0793621B2 (ja) 1995-10-09
EP0256596A3 (en) 1990-03-21
EP0256596A2 (de) 1988-02-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N