SE9002372L - Foerfarande och anordning foer tillgaangskontroll i distributionssystem foer ljud, bild och/eller data - Google Patents

Foerfarande och anordning foer tillgaangskontroll i distributionssystem foer ljud, bild och/eller data

Info

Publication number
SE9002372L
SE9002372L SE9002372A SE9002372A SE9002372L SE 9002372 L SE9002372 L SE 9002372L SE 9002372 A SE9002372 A SE 9002372A SE 9002372 A SE9002372 A SE 9002372A SE 9002372 L SE9002372 L SE 9002372L
Authority
SE
Sweden
Prior art keywords
channels
converters
signals
sound
procedure
Prior art date
Application number
SE9002372A
Other languages
English (en)
Other versions
SE9002372D0 (sv
SE504763C2 (sv
Inventor
M Ellstroem
Original Assignee
Televerket
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 Televerket filed Critical Televerket
Priority to SE9002372A priority Critical patent/SE504763C2/sv
Publication of SE9002372D0 publication Critical patent/SE9002372D0/sv
Publication of SE9002372L publication Critical patent/SE9002372L/sv
Publication of SE504763C2 publication Critical patent/SE504763C2/sv

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
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
SE9002372A 1990-07-06 1990-07-06 Förfarande och anordning för tillgångskontroll i distributionssystem för ljud, bild och/eller data SE504763C2 (sv)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9002372A SE504763C2 (sv) 1990-07-06 1990-07-06 Förfarande och anordning för tillgångskontroll i distributionssystem för ljud, bild och/eller data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9002372A SE504763C2 (sv) 1990-07-06 1990-07-06 Förfarande och anordning för tillgångskontroll i distributionssystem för ljud, bild och/eller data

Publications (3)

Publication Number Publication Date
SE9002372D0 SE9002372D0 (sv) 1990-07-06
SE9002372L true SE9002372L (sv) 1992-01-07
SE504763C2 SE504763C2 (sv) 1997-04-21

Family

ID=20379958

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9002372A SE504763C2 (sv) 1990-07-06 1990-07-06 Förfarande och anordning för tillgångskontroll i distributionssystem för ljud, bild och/eller data

Country Status (1)

Country Link
SE (1) SE504763C2 (sv)

Also Published As

Publication number Publication date
SE9002372D0 (sv) 1990-07-06
SE504763C2 (sv) 1997-04-21

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Legal Events

Date Code Title Description
NUG Patent has lapsed