NL1000964C2 - Werkwijze voor het via het vercijferen/ontcijferen van berichten toegang tot informatie verschaffen, alsmede zendinrichting, alsmede ontvang- inrichting. - Google Patents

Werkwijze voor het via het vercijferen/ontcijferen van berichten toegang tot informatie verschaffen, alsmede zendinrichting, alsmede ontvang- inrichting. Download PDF

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Publication number
NL1000964C2
NL1000964C2 NL1000964A NL1000964A NL1000964C2 NL 1000964 C2 NL1000964 C2 NL 1000964C2 NL 1000964 A NL1000964 A NL 1000964A NL 1000964 A NL1000964 A NL 1000964A NL 1000964 C2 NL1000964 C2 NL 1000964C2
Authority
NL
Netherlands
Prior art keywords
user
message
users
encryption
information
Prior art date
Application number
NL1000964A
Other languages
English (en)
Dutch (nl)
Inventor
Johan Van Tilburg
Andries Pieter Hekstra
Original Assignee
Nederland Ptt
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 Nederland Ptt filed Critical Nederland Ptt
Priority to NL1000964A priority Critical patent/NL1000964C2/nl
Priority to EP96202140A priority patent/EP0759675B1/fr
Priority to AT96202140T priority patent/ATE215290T1/de
Priority to DE69620077T priority patent/DE69620077D1/de
Priority to CA002182772A priority patent/CA2182772A1/fr
Priority to JP8210371A priority patent/JPH09153870A/ja
Application granted granted Critical
Publication of NL1000964C2 publication Critical patent/NL1000964C2/nl

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
    • H04N7/167—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
    • 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
    • H04N21/254—Management at additional data server, e.g. shopping server, rights management server
    • H04N21/2541—Rights Management
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Storage Device Security (AREA)
  • Information Transfer Between Computers (AREA)
NL1000964A 1995-08-10 1995-08-10 Werkwijze voor het via het vercijferen/ontcijferen van berichten toegang tot informatie verschaffen, alsmede zendinrichting, alsmede ontvang- inrichting. NL1000964C2 (nl)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL1000964A NL1000964C2 (nl) 1995-08-10 1995-08-10 Werkwijze voor het via het vercijferen/ontcijferen van berichten toegang tot informatie verschaffen, alsmede zendinrichting, alsmede ontvang- inrichting.
EP96202140A EP0759675B1 (fr) 1995-08-10 1996-07-29 Méthode pour réaliser l'accès d'information par chiffrage/déchiffrage de messages comprenant récepteur et émetteur
AT96202140T ATE215290T1 (de) 1995-08-10 1996-07-29 Verfahren zum zugriff auf informationen durch ver-und entschlüsselung einschliesslich der sende- und empfangsgeräte
DE69620077T DE69620077D1 (de) 1995-08-10 1996-07-29 Verfahren zum Zugriff auf Informationen durch Ver- und Entschlüsselung einschliesslich der Sende- und Empfangsgeräte
CA002182772A CA2182772A1 (fr) 1995-08-10 1996-08-06 Methode d'acces a l'information au moyen de messages chiffres et emetteur et recepteur connexes
JP8210371A JPH09153870A (ja) 1995-08-10 1996-08-09 受信装置のほか送信装置ならびに、暗号化／翻訳メッセージにより、情報へのアクセスを得る方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1000964A NL1000964C2 (nl) 1995-08-10 1995-08-10 Werkwijze voor het via het vercijferen/ontcijferen van berichten toegang tot informatie verschaffen, alsmede zendinrichting, alsmede ontvang- inrichting.
NL1000964 1995-08-10

Publications (1)

Publication Number Publication Date
NL1000964C2 true NL1000964C2 (nl) 1997-02-11

Family

ID=19761426

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1000964A NL1000964C2 (nl) 1995-08-10 1995-08-10 Werkwijze voor het via het vercijferen/ontcijferen van berichten toegang tot informatie verschaffen, alsmede zendinrichting, alsmede ontvang- inrichting.

Country Status (6)

Country Link
EP (1) EP0759675B1 (fr)
JP (1) JPH09153870A (fr)
AT (1) ATE215290T1 (fr)
CA (1) CA2182772A1 (fr)
DE (1) DE69620077D1 (fr)
NL (1) NL1000964C2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1547363A4 (fr) * 2002-09-12 2011-03-02 Thomson Licensing Systeme personnel pour messages video

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0256596A2 (fr) * 1986-08-13 1988-02-24 Philips Electronics Uk Limited Décodage de signaux transmis brouillés
EP0343805A2 (fr) * 1988-05-27 1989-11-29 General Instrument Corporation Of Delaware Reproduction de clés protégées en utilisant des données de génération de clés distribuées
EP0438145A2 (fr) * 1990-01-19 1991-07-24 Hans Peter Stegmaier Bâche et dispositif pour l'enrouler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0256596A2 (fr) * 1986-08-13 1988-02-24 Philips Electronics Uk Limited Décodage de signaux transmis brouillés
EP0343805A2 (fr) * 1988-05-27 1989-11-29 General Instrument Corporation Of Delaware Reproduction de clés protégées en utilisant des données de génération de clés distribuées
EP0438145A2 (fr) * 1990-01-19 1991-07-24 Hans Peter Stegmaier Bâche et dispositif pour l'enrouler

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANGEBAUD D ET AL: "CONDITIONAL ACCESS MECHANISMS FOR ALL-DIGITAL BROADCAST SIGNALS", IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, vol. 38, no. 3, 1 August 1992 (1992-08-01), pages 188 - 194, XP000311835 *

Also Published As

Publication number Publication date
EP0759675A1 (fr) 1997-02-26
EP0759675B1 (fr) 2002-03-27
JPH09153870A (ja) 1997-06-10
ATE215290T1 (de) 2002-04-15
CA2182772A1 (fr) 1997-02-11
DE69620077D1 (de) 2002-05-02

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Legal Events

Date Code Title Description
PD2B A search report has been drawn up
TD Modifications of names of proprietors of patents

Owner name: KONINKLIJKE KPN N.V.

VD1 Lapsed due to non-payment of the annual fee

Effective date: 20040301