FI912752A0 - Styrfoerfarande och -anordning foersett med villkorlig ingaong foer televisionssaendare. - Google Patents

Styrfoerfarande och -anordning foersett med villkorlig ingaong foer televisionssaendare.

Info

Publication number
FI912752A0
FI912752A0 FI912752A FI912752A FI912752A0 FI 912752 A0 FI912752 A0 FI 912752A0 FI 912752 A FI912752 A FI 912752A FI 912752 A FI912752 A FI 912752A FI 912752 A0 FI912752 A0 FI 912752A0
Authority
FI
Finland
Prior art keywords
villkorlig
televisionssaendare
styrfoerfarande
ingaong
anordning
Prior art date
Application number
FI912752A
Other languages
English (en)
Other versions
FI912752A (fi
Inventor
Jean Claude Jouet
Jean Pierre Vigarie
Original Assignee
Matra Communication
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 Matra Communication filed Critical Matra Communication
Publication of FI912752A0 publication Critical patent/FI912752A0/fi
Publication of FI912752A publication Critical patent/FI912752A/fi

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
    • H04N21/25—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
    • H04N21/45—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
    • 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)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Studio Devices (AREA)
FI912752A 1990-06-08 1991-06-07 Styrfoerfarande och -anordning foersett med villkorlig ingaong foer televisionssaendare. FI912752A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9007165A FR2663179B1 (fr) 1990-06-08 1990-06-08 Procede et dispositif transcontroleurs pour installation de diffusion de programmes de television a acces conditionnel.

Publications (2)

Publication Number Publication Date
FI912752A0 true FI912752A0 (fi) 1991-06-07
FI912752A FI912752A (fi) 1991-12-09

Family

ID=9397424

Family Applications (1)

Application Number Title Priority Date Filing Date
FI912752A FI912752A (fi) 1990-06-08 1991-06-07 Styrfoerfarande och -anordning foersett med villkorlig ingaong foer televisionssaendare.

Country Status (7)

Country Link
EP (1) EP0461029B1 (fi)
JP (1) JPH0795725B2 (fi)
AU (1) AU636039B2 (fi)
DE (1) DE69108781D1 (fi)
FI (1) FI912752A (fi)
FR (1) FR2663179B1 (fi)
NO (1) NO178650C (fi)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI97928C (fi) * 1994-03-21 1997-03-10 Nokia Technology Gmbh Menetelmä digitaalisessa muodossa siirrettävän televisiolähetyksen salaamiseksi
FR2718594B1 (fr) * 1994-04-06 1996-04-26 France Telecom Procédé de diffusion de programmes à accès conditionnel progressif et à séparation du flux d'information.
EP1244306B1 (en) * 1994-07-08 2008-02-06 Sony Corporation Receiving controlled-access broadcast signals for more than one playback
FR2729521A1 (fr) * 1995-01-17 1996-07-19 Thomson Consumer Electronics Procede de protection des messages de gestion d'un systeme de controle d'acces et dispositif pour sa mise en oeuvre
FR2730116A1 (fr) * 1995-01-31 1996-08-02 Thomson Broadband Systems Systeme de deport d'un embrouilleur de signal de television
FR2732537B1 (fr) * 1995-03-31 1997-06-13 Canal Plus Sa Procede et installation d'enregistrement d'informations numeriques cryptees
FR2750554B1 (fr) * 1996-06-28 1998-08-14 Thomson Multimedia Sa Systeme a acces conditionnel et carte a puce permettant un tel acces
DE19630707A1 (de) * 1996-07-30 1998-02-05 Deutsche Telekom Ag Verfahren und Anordnungen zur Vermeidung unberechtiger Benutzung von Verteilernetzen
FR2752655B1 (fr) * 1996-08-20 1998-09-18 France Telecom Procede et equipement pour affecter a un programme de television deja en acces conditionnel un acces conditionnel complementaire
US5937067A (en) * 1996-11-12 1999-08-10 Scientific-Atlanta, Inc. Apparatus and method for local encryption control of a global transport data stream
FR2755810B1 (fr) * 1996-11-14 1998-12-31 Thomson Multimedia Sa Procede de certification de donnees par embrouillage et systeme de certification utilisant un tel procede
EP0858184A3 (en) 1997-02-07 1999-09-01 Nds Limited Digital recording protection system
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
IL123554A (en) 1998-03-04 2003-01-12 Nds Ltd Key delivery in a secure broadcasting system
US7668311B2 (en) * 2000-01-28 2010-02-23 Nagracard S.A. Method and system for transmission of decrypting information
WO2001091466A2 (en) 2000-05-22 2001-11-29 Nds Limited Dynamically shifting control word
FR2831360B1 (fr) * 2001-10-19 2004-02-06 Viaccess Sa Protocole interactif de gestion a distance du controle d'acces a des informations embrouillees
DE602004008586T2 (de) 2003-03-04 2008-05-21 Gamelogic Inc., Waltham Verfahren und vorrichtung mit bedingtem zugang
JP4536091B2 (ja) * 2007-07-30 2010-09-01 日本放送協会 限定受信方式の処理装置及び処理方法
JP4536092B2 (ja) * 2007-07-30 2010-09-01 日本放送協会 限定受信方式の処理装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU618285B2 (en) * 1987-09-14 1991-12-19 British Telecommunications Public Limited Company Method of communicating digital signals and receiver for use with such method
GB2214677B (en) * 1988-01-26 1991-06-26 Philips Electronic Associated Decoding transmitted scrambled signals
JPH01246979A (ja) * 1988-03-29 1989-10-02 Kondeishiyonaru Akusesu Technol Kenkyusho:Kk 有料番組分配装置及び暗号鍵の分配方法
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.

Also Published As

Publication number Publication date
AU7828591A (en) 1991-12-12
NO912179D0 (no) 1991-06-06
NO178650C (no) 1996-05-02
JPH04233345A (ja) 1992-08-21
EP0461029B1 (fr) 1995-04-12
FR2663179A1 (fr) 1991-12-13
EP0461029A1 (fr) 1991-12-11
AU636039B2 (en) 1993-04-08
NO178650B (no) 1996-01-22
JPH0795725B2 (ja) 1995-10-11
NO912179L (no) 1991-12-09
FI912752A (fi) 1991-12-09
FR2663179B1 (fr) 1992-09-11
DE69108781D1 (de) 1995-05-18

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Legal Events

Date Code Title Description
FD Application lapsed