BE474239A - - Google Patents

Info

Publication number
BE474239A
BE474239A BE474239DA BE474239A BE 474239 A BE474239 A BE 474239A BE 474239D A BE474239D A BE 474239DA BE 474239 A BE474239 A BE 474239A
Authority
BE
Belgium
Application number
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.)
Publication of BE474239A publication Critical patent/BE474239A/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
    • H04N7/169—Systems operating in the time domain of the television signal
    • H04N7/1693—Systems operating in the time domain of the television signal by displacing synchronisation signals relative to active picture signals or vice versa
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/02—Secret communication by adding a second signal to make the desired signal unintelligible
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
BE474239D 1947-06-30 BE474239A ( )

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1015394T 1947-06-30

Publications (1)

Publication Number Publication Date
BE474239A true BE474239A ( )

Family

ID=9572985

Family Applications (1)

Application Number Title Priority Date Filing Date
BE474239D BE474239A ( ) 1947-06-30

Country Status (2)

Country Link
BE (1) BE474239A ( )
FR (1) FR1015394A ( )

Also Published As

Publication number Publication date
FR1015394A (fr) 1952-09-16

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