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DK0485887T3 - Apparat og fremgangsmåde til opgradering af terminaler for at opretholde et sikkert kommunikationsnet - Google Patents

Apparat og fremgangsmåde til opgradering af terminaler for at opretholde et sikkert kommunikationsnet

Info

Publication number
DK0485887T3
DK0485887T3 DK91118977.7T DK91118977T DK0485887T3 DK 0485887 T3 DK0485887 T3 DK 0485887T3 DK 91118977 T DK91118977 T DK 91118977T DK 0485887 T3 DK0485887 T3 DK 0485887T3
Authority
DK
Denmark
Prior art keywords
security
maintain
communications network
secure communications
elements
Prior art date
Application number
DK91118977.7T
Other languages
Danish (da)
English (en)
Inventor
James Neil Esserman
Jerrold A Heller
Original Assignee
Gen Instrument Corp
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 Gen Instrument Corp filed Critical Gen Instrument Corp
Application granted granted Critical
Publication of DK0485887T3 publication Critical patent/DK0485887T3/da

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
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Small-Scale Networks (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Communication Control (AREA)
  • Computer And Data Communications (AREA)
DK91118977.7T 1990-11-16 1991-11-07 Apparat og fremgangsmåde til opgradering af terminaler for at opretholde et sikkert kommunikationsnet DK0485887T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/614,940 US5144664A (en) 1990-11-16 1990-11-16 Apparatus and method for upgrading terminals to maintain a secure communication network

Publications (1)

Publication Number Publication Date
DK0485887T3 true DK0485887T3 (da) 1998-03-02

Family

ID=24463349

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91118977.7T DK0485887T3 (da) 1990-11-16 1991-11-07 Apparat og fremgangsmåde til opgradering af terminaler for at opretholde et sikkert kommunikationsnet

Country Status (12)

Country Link
US (1) US5144664A (ko)
EP (1) EP0485887B1 (ko)
JP (2) JP3015175B2 (ko)
KR (1) KR100188426B1 (ko)
AT (1) ATE156645T1 (ko)
AU (1) AU635887B2 (ko)
CA (1) CA2055132C (ko)
DE (1) DE69127171T2 (ko)
DK (1) DK0485887T3 (ko)
ES (1) ES2104645T3 (ko)
IE (1) IE80615B1 (ko)
NO (1) NO300080B1 (ko)

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Also Published As

Publication number Publication date
KR920011274A (ko) 1992-06-27
EP0485887A3 (en) 1992-12-09
EP0485887A2 (en) 1992-05-20
KR100188426B1 (ko) 1999-06-01
NO914477D0 (no) 1991-11-15
AU635887B2 (en) 1993-04-01
EP0485887B1 (en) 1997-08-06
IE913860A1 (en) 1992-05-20
ES2104645T3 (es) 1997-10-16
NO914477L (no) 1992-05-18
DE69127171T2 (de) 1998-01-29
JPH04286434A (ja) 1992-10-12
CA2055132A1 (en) 1992-05-17
DE69127171D1 (de) 1997-09-11
NO300080B1 (no) 1997-04-01
CA2055132C (en) 2000-05-02
IE80615B1 (en) 1998-10-21
US5144664A (en) 1992-09-01
ATE156645T1 (de) 1997-08-15
JP2000134196A (ja) 2000-05-12
JP3015175B2 (ja) 2000-03-06
AU8788791A (en) 1992-05-21

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