BE791941A - Perfectionnements concernant les recepteurs de television - Google Patents

Perfectionnements concernant les recepteurs de television

Info

Publication number
BE791941A
BE791941A BE791941DA BE791941A BE 791941 A BE791941 A BE 791941A BE 791941D A BE791941D A BE 791941DA BE 791941 A BE791941 A BE 791941A
Authority
BE
Belgium
Prior art keywords
advancements
television receivers
concerning television
concerning
receivers
Prior art date
Application number
Other languages
English (en)
Inventor
E J Gardini
Original Assignee
Communications Patents Ltd
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 date
Publication of BE791941A publication Critical patent/BE791941A/fr

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
BE791941D 1971-11-25 Perfectionnements concernant les recepteurs de television BE791941A (fr)

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
BE791941A true BE791941A (fr) 1973-03-16

Family

ID=10472182

Family Applications (1)

Application Number Title Priority Date Filing Date
BE791941D BE791941A (fr) 1971-11-25 Perfectionnements concernant les recepteurs de television

Country Status (14)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917978C2 (de) * 1979-05-04 1983-12-22 Volker Joachim 4400 Münster Remme Kabelkommunikationssystem
ATE16548T1 (de) * 1982-04-29 1985-11-15 Deltavisie Bv System zur uebertragung von programm- oder datensignalen.
DE3382546D1 (de) * 1982-05-14 1992-05-27 Communications Patents Ltd Kommunikationssystem.
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 (fr) * 1963-07-24 1965-08-27 Skiatron Elect & Tele émetteurs-récepteurs asservis dits transponders retransmettant des signaux produits par la station centrale

Also Published As

Publication number Publication date
GB1412586A (en) 1975-11-05
IT973721B (it) 1974-06-10
AU467268B2 (en) 1975-11-27
CH552316A (de) 1974-07-31
JPS4864802A (fr) 1973-09-07
IL40808A (en) 1976-08-31
MTP730B (en) 1973-08-10
SE387027B (sv) 1976-08-23
DE2257644B2 (de) 1979-05-17
AU4920072A (en) 1974-05-23
ES408940A1 (es) 1975-10-16
IL40808A0 (en) 1973-01-30
NL7215797A (fr) 1973-05-29
FR2161122B1 (fr) 1978-03-03
DE2257644C3 (de) 1980-01-17
DE2257644A1 (de) 1973-05-30
FR2161122A1 (fr) 1973-07-06
ZA728024B (en) 1973-07-25

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: COMMUNICATIONS PATENTS LTD

Effective date: 19841127