NL8003541A - Gecombineerd draadomroep- en videofoonstelsel. - Google Patents

Gecombineerd draadomroep- en videofoonstelsel. Download PDF

Info

Publication number
NL8003541A
NL8003541A NL8003541A NL8003541A NL8003541A NL 8003541 A NL8003541 A NL 8003541A NL 8003541 A NL8003541 A NL 8003541A NL 8003541 A NL8003541 A NL 8003541A NL 8003541 A NL8003541 A NL 8003541A
Authority
NL
Netherlands
Prior art keywords
subscriber
frequency
bus lines
signals
microprocessor
Prior art date
Application number
NL8003541A
Other languages
English (en)
Dutch (nl)
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.)
Filing date
Publication date
Application filed by Communications Patents Ltd filed Critical Communications Patents Ltd
Publication of NL8003541A publication Critical patent/NL8003541A/nl

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/77—Wired systems using carrier waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Small-Scale Networks (AREA)
NL8003541A 1979-06-19 1980-06-18 Gecombineerd draadomroep- en videofoonstelsel. NL8003541A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7921335 1979-06-19
GB7921335 1979-06-19

Publications (1)

Publication Number Publication Date
NL8003541A true NL8003541A (nl) 1980-12-23

Family

ID=10505949

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8003541A NL8003541A (nl) 1979-06-19 1980-06-18 Gecombineerd draadomroep- en videofoonstelsel.

Country Status (13)

Country Link
US (1) US4386365A (de)
JP (1) JPS5619243A (de)
AU (1) AU535400B2 (de)
BE (1) BE883882A (de)
CA (1) CA1147449A (de)
CH (1) CH651162A5 (de)
DE (1) DE3022359A1 (de)
ES (1) ES8101830A1 (de)
FR (1) FR2459590A1 (de)
IT (1) IT1129012B (de)
NL (1) NL8003541A (de)
SE (1) SE448048B (de)
ZA (1) ZA803471B (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5819087A (ja) * 1981-07-24 1983-02-03 Pioneer Electronic Corp Ｃａｔｖシステムにおけるデ−タ
US4645872A (en) * 1982-04-01 1987-02-24 John Hopkins University Videophone network system
FR2543385B1 (fr) * 1983-03-23 1985-07-12 Telecommunications Sa Reseau cable de videocommunication
US4716585A (en) 1985-04-05 1987-12-29 Datapoint Corporation Gain switched audio conferencing network
US4710917A (en) * 1985-04-08 1987-12-01 Datapoint Corporation Video conferencing network
US4686698A (en) * 1985-04-08 1987-08-11 Datapoint Corporation Workstation for interfacing with a video conferencing network
US4893326A (en) * 1987-05-04 1990-01-09 Video Telecom Corp. Video-telephone communications system
US4849811A (en) * 1988-07-06 1989-07-18 Ben Kleinerman Simultaneous audio and video transmission with restricted bandwidth
US5014267A (en) * 1989-04-06 1991-05-07 Datapoint Corporation Video conferencing network
US5343240A (en) * 1991-11-04 1994-08-30 At&T Bell Laboratories Bidirectional video telephony using shared channels on coaxial cable networks
GB2263041B (en) * 1991-12-30 1996-03-20 Nynex Corp System for integrated distribution of switched voice and television on coaxial cable and with video signal transmission originating from subscriber locations
US5278889A (en) * 1992-07-29 1994-01-11 At&T Bell Laboratories Video telephony dialing
US5329308A (en) * 1992-07-29 1994-07-12 At&T Bell Laboratories Bidirectional video telephony between cable television and switched telephone systems
US5675373A (en) * 1994-08-19 1997-10-07 Marion County School Board Interactive television service utilizing both unidirectional and omnidirectional broadcasting
WO2000051350A1 (en) 1999-02-22 2000-08-31 Terk Technologies Corp. Video transmission system and method utilizing phone lines in multiple unit dwellings
DE102013210381B3 (de) * 2013-06-05 2014-05-28 Siemens Aktiengesellschaft Signalübertragung von und zu einer Lokalspule einer Magnetresonanzanlage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1272594A (en) * 1968-08-09 1972-05-03 Communications Patents Ltd Improvements in and relating to wired broadcasting systems
GB1306367A (de) * 1969-06-06 1973-02-07
US3706996A (en) * 1970-04-14 1972-12-19 Theodore Hafner Frequency adjustment for two-way video transmission
GB1314457A (en) * 1970-11-12 1973-04-26 Communications Patents Ltd Wired broadcasting systems
GB1414127A (en) * 1971-12-03 1975-11-19 Communications Patents Ltd Wired broadcasting systems

Also Published As

Publication number Publication date
ES492437A0 (es) 1980-12-16
ZA803471B (en) 1981-06-24
JPS5619243A (en) 1981-02-23
IT8048999A0 (it) 1980-06-17
SE448048B (sv) 1987-01-12
FR2459590B1 (de) 1984-11-30
SE8004343L (sv) 1980-12-20
CH651162A5 (de) 1985-08-30
AU5902380A (en) 1981-01-08
CA1147449A (en) 1983-05-31
IT1129012B (it) 1986-06-04
ES8101830A1 (es) 1980-12-16
US4386365A (en) 1983-05-31
FR2459590A1 (fr) 1981-01-09
AU535400B2 (en) 1984-03-22
BE883882A (fr) 1980-10-16
DE3022359A1 (de) 1981-01-29

Similar Documents

Publication Publication Date Title
NL8003541A (nl) Gecombineerd draadomroep- en videofoonstelsel.
FI82578C (fi) Kabeltelevisionssystem foer selektiv saendning av i foervaeg bandade video- och ljudmeddelanden.
US4339816A (en) Conferencing apparatus and methods for a frequency division multiplex communications system
EP0166595B1 (de) Nachrichtenkommunikationssystem
US4345273A (en) Broad band switching system
JPH0286384A (ja) 動画像情報サービスシステム及び該システム用ヘッドエンド装置
US4107471A (en) Frequency division multiplex communications system
JPH07221738A (ja) 光通信網におけるパケット転送交換のための方法および装置
JPH10508437A (ja) アッドドロップ光学スペクトル分割マルチプレクサ
JPS58129847A (ja) 光チヤネルを有する通信網
CA1175535A (en) Process for switching time-multiplexed signals transmitted on a carrier, including in particular an optical carrier, and a device embodying this process
US3236951A (en) Channel changing equipment for timedivision multiplex communication
EP0086810A1 (de) Breitband-verknüpfungsanordnung
FI83468B (fi) Foerfarande foer inkoppling av extra samtalsvaegar och tonsignaler i en mellan tvao abonnenter raorande telefonfoerbindelse.
US4682349A (en) Switching system with video switching matrix
GB2053625A (en) Combined wired broadcasting and viewphone system
US3743785A (en) Telecommunication switching system employing time division multiplex connections
Graves The Heathrow broadband access system
Heydt et al. RACE project R1010 scenario for the implementation of coherent multichannel systems in the subscriber area of the European IBC network
JPH022796A (ja) 共用光ファイバリングを有するｃａｔｖシステム
KR100238726B1 (ko) 디지털 케이블 털레비전시스템의 가입자 분배회로및 가입자 증설방법
JPH04247729A (ja) 波長選択器
JPS63209291A (ja) 通信システムにおける多段スイツチフレームのためのスイツチ装置
KR20040066194A (ko) 다수의 컴퓨터 단자를 광대역 케이블에 접속하는 방법
JPH0746572A (ja) Ｃａｔｖシステムにおける加入者終端装置

Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BV The patent application has lapsed