NO166909C - Noekkelsignalsystem for aa reprodusere et abonnentnoekkelsignal i en signalgjenoppretter. - Google Patents

Noekkelsignalsystem for aa reprodusere et abonnentnoekkelsignal i en signalgjenoppretter.

Info

Publication number
NO166909C
NO166909C NO850986A NO850986A NO166909C NO 166909 C NO166909 C NO 166909C NO 850986 A NO850986 A NO 850986A NO 850986 A NO850986 A NO 850986A NO 166909 C NO166909 C NO 166909C
Authority
NO
Norway
Prior art keywords
signal
subscriber
key
descrambler
unique
Prior art date
Application number
NO850986A
Other languages
English (en)
Norwegian (no)
Other versions
NO850986L (no
NO166909B (no
Inventor
Karl E Moerder
Original Assignee
Titan Linkabit Corporations
Cabel Home Communication 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 Titan Linkabit Corporations, Cabel Home Communication Corp filed Critical Titan Linkabit Corporations
Publication of NO850986L publication Critical patent/NO850986L/no
Publication of NO166909B publication Critical patent/NO166909B/no
Publication of NO166909C publication Critical patent/NO166909C/no

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Error Detection And Correction (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Semiconductor Lasers (AREA)
  • Push-Button Switches (AREA)
  • Circuits Of Receivers In General (AREA)
  • Pens And Brushes (AREA)
  • Telephone Function (AREA)
NO850986A 1984-03-15 1985-03-13 Noekkelsignalsystem for aa reprodusere et abonnentnoekkelsignal i en signalgjenoppretter. NO166909C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/589,741 US4634808A (en) 1984-03-15 1984-03-15 Descrambler subscriber key production system utilizing key seeds stored in descrambler

Publications (3)

Publication Number Publication Date
NO850986L NO850986L (no) 1985-09-16
NO166909B NO166909B (no) 1991-06-03
NO166909C true NO166909C (no) 1991-09-11

Family

ID=24359313

Family Applications (1)

Application Number Title Priority Date Filing Date
NO850986A NO166909C (no) 1984-03-15 1985-03-13 Noekkelsignalsystem for aa reprodusere et abonnentnoekkelsignal i en signalgjenoppretter.

Country Status (9)

Country Link
US (1) US4634808A (fr)
EP (1) EP0155762B1 (fr)
JP (1) JPS6116643A (fr)
AT (1) ATE55035T1 (fr)
AU (1) AU566316B2 (fr)
CA (1) CA1225458A (fr)
DE (1) DE3578792D1 (fr)
DK (1) DK166247C (fr)
NO (1) NO166909C (fr)

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Also Published As

Publication number Publication date
NO850986L (no) 1985-09-16
EP0155762A3 (en) 1987-06-03
AU3954085A (en) 1985-09-19
DK166247C (da) 1993-08-16
JPS6116643A (ja) 1986-01-24
DE3578792D1 (de) 1990-08-30
CA1225458A (fr) 1987-08-11
ATE55035T1 (de) 1990-08-15
EP0155762A2 (fr) 1985-09-25
EP0155762B1 (fr) 1990-07-25
AU566316B2 (en) 1987-10-15
JPH0380380B2 (fr) 1991-12-24
DK166247B (da) 1993-03-22
DK85085D0 (da) 1985-02-25
DK85085A (da) 1985-09-16
NO166909B (no) 1991-06-03
US4634808A (en) 1987-01-06

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