SE9100986D0 - Tv-signaloeverfoerande betal-tv-system - Google Patents

Tv-signaloeverfoerande betal-tv-system

Info

Publication number
SE9100986D0
SE9100986D0 SE9100986A SE9100986A SE9100986D0 SE 9100986 D0 SE9100986 D0 SE 9100986D0 SE 9100986 A SE9100986 A SE 9100986A SE 9100986 A SE9100986 A SE 9100986A SE 9100986 D0 SE9100986 D0 SE 9100986D0
Authority
SE
Sweden
Prior art keywords
signal
transmitter
receivers
signals according
subscribed
Prior art date
Application number
SE9100986A
Other languages
English (en)
Other versions
SE9100986A (sv
SE466727B (sv
Inventor
Persson Bjoern
Elektronik Ab Factum
Svensson Tomas
Original Assignee
Persson Bjoern
Elektronik Ab Factum
Svensson Tomas
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 Persson Bjoern, Elektronik Ab Factum, Svensson Tomas filed Critical Persson Bjoern
Priority to SE9100986A priority Critical patent/SE466727B/sv
Publication of SE9100986D0 publication Critical patent/SE9100986D0/sv
Priority to PCT/SE1992/000148 priority patent/WO1992017984A1/en
Priority to AU13477/92A priority patent/AU1347792A/en
Publication of SE466727B publication Critical patent/SE466727B/sv
Publication of SE9100986A publication Critical patent/SE9100986A/xx

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
    • H04N7/171—Systems operating in the amplitude domain of the television signal
    • H04N7/1713—Systems operating in the amplitude domain of the television signal by modifying synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)
SE9100986A 1991-04-04 1991-04-04 Tv-signaloeverfoerande betal-tv-system SE466727B (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9100986A SE466727B (sv) 1991-04-04 1991-04-04 Tv-signaloeverfoerande betal-tv-system
PCT/SE1992/000148 WO1992017984A1 (en) 1991-04-04 1992-03-10 Tv-signal transmission pay-tv-system
AU13477/92A AU1347792A (en) 1991-04-04 1992-03-10 Tv-signal transmission pay-tv-system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9100986A SE466727B (sv) 1991-04-04 1991-04-04 Tv-signaloeverfoerande betal-tv-system

Publications (3)

Publication Number Publication Date
SE9100986D0 true SE9100986D0 (sv) 1991-04-04
SE466727B SE466727B (sv) 1992-03-23
SE9100986A SE9100986A (sv) 1992-03-30

Family

ID=20382350

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9100986A SE466727B (sv) 1991-04-04 1991-04-04 Tv-signaloeverfoerande betal-tv-system

Country Status (3)

Country Link
AU (1) AU1347792A (sv)
SE (1) SE466727B (sv)
WO (1) WO1992017984A1 (sv)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2541841A1 (fr) * 1983-02-25 1984-08-31 Radiotechnique Dispositif de dechiffrement d'images de television brouillees par application aux signaux video de permutations circulaires
US4642688A (en) * 1983-06-24 1987-02-10 Scientific Atlanta, Inc. Method and apparatus for creating encrypted and decrypted television signals

Also Published As

Publication number Publication date
WO1992017984A1 (en) 1992-10-15
SE9100986A (sv) 1992-03-30
SE466727B (sv) 1992-03-23
AU1347792A (en) 1992-11-02

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