BE845006A - Perfectionnements relatifs aux dispositifs de telediffusion par cables ou relatifs a ceux-ci - Google Patents

Perfectionnements relatifs aux dispositifs de telediffusion par cables ou relatifs a ceux-ci

Info

Publication number
BE845006A
BE845006A BE2055229A BE2055229A BE845006A BE 845006 A BE845006 A BE 845006A BE 2055229 A BE2055229 A BE 2055229A BE 2055229 A BE2055229 A BE 2055229A BE 845006 A BE845006 A BE 845006A
Authority
BE
Belgium
Prior art keywords
cable broadcasting
broadcasting devices
devices
improvements related
cable
Prior art date
Application number
BE2055229A
Other languages
English (en)
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 filed Critical
Publication of BE845006A publication Critical patent/BE845006A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H04K3/40—Jamming having variable characteristics
    • H04K3/41—Jamming having variable characteristics characterized by the control of the jamming activation or deactivation time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/166—Passage/non-passage of the television signal, e.g. jamming, band suppression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/10—Jamming or countermeasure used for a particular application
    • H04K2203/14—Jamming or countermeasure used for a particular application for the transfer of light or images, e.g. for video-surveillance, for television or from a computer screen

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Selective Calling Equipment (AREA)
BE2055229A 1975-08-09 1976-08-09 Perfectionnements relatifs aux dispositifs de telediffusion par cables ou relatifs a ceux-ci BE845006A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33294/75A GB1554411A (en) 1975-08-09 1975-08-09 Control systems

Publications (1)

Publication Number Publication Date
BE845006A true BE845006A (fr) 1976-12-01

Family

ID=10351060

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2055229A BE845006A (fr) 1975-08-09 1976-08-09 Perfectionnements relatifs aux dispositifs de telediffusion par cables ou relatifs a ceux-ci

Country Status (10)

Country Link
US (1) US4367557A (fr)
JP (1) JPS5237709A (fr)
AU (1) AU501189B2 (fr)
BE (1) BE845006A (fr)
CA (1) CA1102881A (fr)
CH (1) CH621883A5 (fr)
DE (1) DE2635162C2 (fr)
ES (1) ES450580A1 (fr)
GB (1) GB1554411A (fr)
NL (1) NL182118C (fr)

Families Citing this family (247)

* Cited by examiner, † Cited by third party
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AU1669676A (en) 1978-02-16
NL182118C (nl) 1988-01-04
DE2635162C2 (de) 1983-10-13
CH621883A5 (en) 1981-02-27
GB1554411A (en) 1979-10-17
CA1102881A (fr) 1981-06-09
NL7608794A (nl) 1977-02-11
NL182118B (nl) 1987-08-03
ES450580A1 (es) 1977-12-16
DE2635162A1 (de) 1977-02-24
US4367557A (en) 1983-01-04
JPS5237709A (en) 1977-03-23
AU501189B2 (en) 1979-06-14

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