DK168775A - CABLE TV SYSTEM - Google Patents

CABLE TV SYSTEM

Info

Publication number
DK168775A
DK168775A DK168775A DK168775A DK168775A DK 168775 A DK168775 A DK 168775A DK 168775 A DK168775 A DK 168775A DK 168775 A DK168775 A DK 168775A DK 168775 A DK168775 A DK 168775A
Authority
DK
Denmark
Prior art keywords
cable
Prior art date
Application number
DK168775A
Other languages
Danish (da)
Inventor
H H J Grotjohann
J J J D Bont
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of DK168775A publication Critical patent/DK168775A/en

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
    • H04N7/17345—Control of the passage of the selected programme
    • H04N7/17354—Control of the passage of the selected programme in an intermediate station common to a plurality of user terminals
    • 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
DK168775A 1974-04-22 1975-04-18 CABLE TV SYSTEM DK168775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7405405A NL7405405A (en) 1974-04-22 1974-04-22 TELEVISION DISTRIBUTION SYSTEM.

Publications (1)

Publication Number Publication Date
DK168775A true DK168775A (en) 1975-10-23

Family

ID=19821200

Family Applications (1)

Application Number Title Priority Date Filing Date
DK168775A DK168775A (en) 1974-04-22 1975-04-18 CABLE TV SYSTEM

Country Status (13)

Country Link
JP (1) JPS604633B2 (en)
AT (1) AT337277B (en)
AU (1) AU500019B2 (en)
BE (1) BE828232A (en)
CA (1) CA1055597A (en)
CH (1) CH585994A5 (en)
DE (1) DE2457492C2 (en)
DK (1) DK168775A (en)
FR (1) FR2268418B1 (en)
GB (1) GB1506924A (en)
IT (1) IT1032713B (en)
NL (1) NL7405405A (en)
SE (1) SE404121B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2807986A1 (en) * 1978-02-22 1979-08-30 Hertz Inst Heinrich SYSTEM FOR INTERACTIVE CABLE TV
CA1142244A (en) * 1979-08-22 1983-03-01 Eric J. Gargini Wired broadcasting system with subscriber controlled switched programme selection
NL8006976A (en) * 1980-12-22 1982-07-16 Delta Kabel Bv SWITCHING SYSTEM.
US4491983A (en) * 1981-05-14 1985-01-01 Times Fiber Communications, Inc. Information distribution system
AT382276B (en) * 1981-08-03 1987-02-10 Elektromos Hiradastechnikai Ki WITH AN ANTENNA SYSTEM FOR A DISTRICT ASSEMBLED TWO-WAY MESSAGE SYSTEM BETWEEN TWO OR MORE ANY PARTICIPANTS
GB2117210A (en) * 1982-01-26 1983-10-05 Kenneth James Fenning Video transmission system
CA1177558A (en) * 1982-04-15 1984-11-06 Groupe Videotron Ltee. (Le) Cable network data transmission system
GB2164229B (en) * 1982-05-14 1986-08-20 Communications Patents Ltd Communications system
DE3382546D1 (en) * 1982-05-14 1992-05-27 Communications Patents Ltd COMMUNICATION SYSTEM.
GB2127257A (en) * 1982-08-17 1984-04-04 Visionhire Cable Limited Distribution apparatus
DE3246225C2 (en) * 1982-12-14 1985-07-18 ANT Nachrichtentechnik GmbH, 7150 Backnang Broadband distribution system with a large number of channels
DE3339636A1 (en) * 1983-11-02 1985-05-15 Blaupunkt-Werke Gmbh, 3200 Hildesheim Cable television system
FR2558674B1 (en) * 1984-01-19 1988-05-06 Telecommunications Sa VIDEOCOMMUNICATION DISTRIBUTION NETWORK
NL8400860A (en) * 1984-03-16 1985-10-16 Nl Standard Electric Mij B V CABLE TELEVISION NETWORK.
EP0167237A3 (en) * 1984-05-31 1988-08-03 AMERICAN TELEVISION & COMMUNICATIONS CORPORATION Cable television system
GB8428647D0 (en) * 1984-11-13 1984-12-19 Communications Patents Ltd Communication system
JP2658030B2 (en) * 1987-01-30 1997-09-30 ソニー株式会社 Information transmission equipment
US4887152A (en) * 1987-01-30 1989-12-12 Sony Corporation Message delivery system operable in an override mode upon reception of a command signal
DE3840254C1 (en) * 1988-11-29 1990-06-07 Neuberger Nachrichten- Und Antennentechnik Gmbh, 8000 Muenchen, De

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639840A (en) * 1969-11-28 1972-02-01 Spencer Kennedy Lab Inc Multicarrier transmission system

Also Published As

Publication number Publication date
CA1055597A (en) 1979-05-29
JPS604633B2 (en) 1985-02-05
DE2457492C2 (en) 1983-06-01
SE404121B (en) 1978-09-18
FR2268418A1 (en) 1975-11-14
IT1032713B (en) 1979-06-20
FR2268418B1 (en) 1982-05-28
JPS512354A (en) 1976-01-09
SE7504478L (en) 1975-10-23
DE2457492A1 (en) 1975-10-30
NL7405405A (en) 1975-10-24
AT337277B (en) 1977-06-27
ATA307775A (en) 1976-10-15
AU500019B2 (en) 1979-05-10
BE828232A (en) 1975-10-22
GB1506924A (en) 1978-04-12
AU8033475A (en) 1976-10-28
CH585994A5 (en) 1977-03-15

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)