NL7215797A - - Google Patents

Info

Publication number
NL7215797A
NL7215797A NL7215797A NL7215797A NL7215797A NL 7215797 A NL7215797 A NL 7215797A NL 7215797 A NL7215797 A NL 7215797A NL 7215797 A NL7215797 A NL 7215797A NL 7215797 A NL7215797 A NL 7215797A
Authority
NL
Netherlands
Application number
NL7215797A
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 NL7215797A publication Critical patent/NL7215797A/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
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N2007/17372—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream transmission being initiated or timed by a signal from upstream of the user terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N2007/1739—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal the upstream communication being transmitted via a separate link, e.g. telephone line

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Telephonic Communication Services (AREA)
  • Radio Relay Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
NL7215797A 1971-11-25 1972-11-22 NL7215797A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5482271A GB1412586A (en) 1971-11-25 1971-11-25 Wired broadcasting systems

Publications (1)

Publication Number Publication Date
NL7215797A true NL7215797A (en) 1973-05-29

Family

ID=10472182

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7215797A NL7215797A (en) 1971-11-25 1972-11-22

Country Status (14)

Country Link
JP (1) JPS4864802A (en)
AU (1) AU467268B2 (en)
BE (1) BE791941A (en)
CH (1) CH552316A (en)
DE (1) DE2257644C3 (en)
ES (1) ES408940A1 (en)
FR (1) FR2161122B1 (en)
GB (1) GB1412586A (en)
IL (1) IL40808A (en)
IT (1) IT973721B (en)
MT (1) MTP730B (en)
NL (1) NL7215797A (en)
SE (1) SE387027B (en)
ZA (1) ZA728024B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917978C2 (en) * 1979-05-04 1983-12-22 Volker Joachim 4400 Münster Remme Cable communication system
ATE16548T1 (en) * 1982-04-29 1985-11-15 Deltavisie Bv SYSTEM FOR TRANSMISSION OF PROGRAM OR DATA SIGNALS.
DE3382546D1 (en) * 1982-05-14 1992-05-27 Communications Patents Ltd COMMUNICATION SYSTEM.
GB2164229B (en) * 1982-05-14 1986-08-20 Communications Patents Ltd Communications system
US4605958A (en) * 1983-04-14 1986-08-12 Control Data Corporation Method and apparatus for detecting the channel to which an electronic receiver system is tuned
US4789860A (en) * 1985-03-12 1988-12-06 U.S. Philips Corp. Interface between a receiver and a sub-system
US4896209A (en) * 1987-02-10 1990-01-23 Sony Corporation Passenger vehicle polling system having a central unit for polling passenger seat terminal units

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1409479A (en) * 1963-07-24 1965-08-27 Skiatron Elect & Tele slave transceivers called transponders retransmitting signals produced by the central station

Also Published As

Publication number Publication date
GB1412586A (en) 1975-11-05
IT973721B (en) 1974-06-10
AU467268B2 (en) 1975-11-27
CH552316A (en) 1974-07-31
JPS4864802A (en) 1973-09-07
IL40808A (en) 1976-08-31
MTP730B (en) 1973-08-10
SE387027B (en) 1976-08-23
DE2257644B2 (en) 1979-05-17
AU4920072A (en) 1974-05-23
ES408940A1 (en) 1975-10-16
IL40808A0 (en) 1973-01-30
BE791941A (en) 1973-03-16
FR2161122B1 (en) 1978-03-03
DE2257644C3 (en) 1980-01-17
DE2257644A1 (en) 1973-05-30
FR2161122A1 (en) 1973-07-06
ZA728024B (en) 1973-07-25

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed