NO300080B1 - System, terminal og fremgangsmåte for å oppgradere terminaler for å opprettholde sikkerheten ved kommunikasjonsnettverk - Google Patents

System, terminal og fremgangsmåte for å oppgradere terminaler for å opprettholde sikkerheten ved kommunikasjonsnettverk Download PDF

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Publication number
NO300080B1
NO300080B1 NO914477A NO914477A NO300080B1 NO 300080 B1 NO300080 B1 NO 300080B1 NO 914477 A NO914477 A NO 914477A NO 914477 A NO914477 A NO 914477A NO 300080 B1 NO300080 B1 NO 300080B1
Authority
NO
Norway
Prior art keywords
terminals
security
algorithm
signals
encryption
Prior art date
Application number
NO914477A
Other languages
English (en)
Norwegian (no)
Other versions
NO914477L (no
NO914477D0 (no
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
Publication of NO914477D0 publication Critical patent/NO914477D0/no
Publication of NO914477L publication Critical patent/NO914477L/no
Publication of NO300080B1 publication Critical patent/NO300080B1/no

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)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Computer And Data Communications (AREA)
NO914477A 1990-11-16 1991-11-15 System, terminal og fremgangsmåte for å oppgradere terminaler for å opprettholde sikkerheten ved kommunikasjonsnettverk NO300080B1 (no)

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 (3)

Publication Number Publication Date
NO914477D0 NO914477D0 (no) 1991-11-15
NO914477L NO914477L (no) 1992-05-18
NO300080B1 true NO300080B1 (no) 1997-04-01

Family

ID=24463349

Family Applications (1)

Application Number Title Priority Date Filing Date
NO914477A NO300080B1 (no) 1990-11-16 1991-11-15 System, terminal og fremgangsmåte for å oppgradere terminaler for å opprettholde sikkerheten ved kommunikasjonsnettverk

Country Status (12)

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

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Also Published As

Publication number Publication date
ES2104645T3 (es) 1997-10-16
CA2055132A1 (en) 1992-05-17
IE80615B1 (en) 1998-10-21
EP0485887A2 (en) 1992-05-20
KR100188426B1 (ko) 1999-06-01
JPH04286434A (ja) 1992-10-12
DE69127171T2 (de) 1998-01-29
JP2000134196A (ja) 2000-05-12
KR920011274A (ko) 1992-06-27
NO914477L (no) 1992-05-18
NO914477D0 (no) 1991-11-15
EP0485887B1 (en) 1997-08-06
DK0485887T3 (da) 1998-03-02
AU635887B2 (en) 1993-04-01
EP0485887A3 (en) 1992-12-09
AU8788791A (en) 1992-05-21
JP3015175B2 (ja) 2000-03-06
IE913860A1 (en) 1992-05-20
CA2055132C (en) 2000-05-02
DE69127171D1 (de) 1997-09-11
ATE156645T1 (de) 1997-08-15
US5144664A (en) 1992-09-01

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