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GB2053625B - Combined wired broadcasting and viewphone system - Google Patents

Combined wired broadcasting and viewphone system

Info

Publication number
GB2053625B
GB2053625B GB8018220A GB8018220A GB2053625B GB 2053625 B GB2053625 B GB 2053625B GB 8018220 A GB8018220 A GB 8018220A GB 8018220 A GB8018220 A GB 8018220A GB 2053625 B GB2053625 B GB 2053625B
Authority
GB
United Kingdom
Prior art keywords
viewphone
wired broadcasting
combined wired
combined
broadcasting
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB8018220A
Other versions
GB2053625A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Communications Patents Ltd
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
Priority to GB8018220A priority Critical patent/GB2053625B/en
Publication of GB2053625A publication Critical patent/GB2053625A/en
Application granted granted Critical
Publication of GB2053625B publication Critical patent/GB2053625B/en
Expired legal-status Critical Current

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)
GB8018220A 1979-06-19 1980-06-04 Combined wired broadcasting and viewphone system Expired GB2053625B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8018220A GB2053625B (en) 1979-06-19 1980-06-04 Combined wired broadcasting and viewphone system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7921335 1979-06-19
GB8018220A GB2053625B (en) 1979-06-19 1980-06-04 Combined wired broadcasting and viewphone system

Publications (2)

Publication Number Publication Date
GB2053625A GB2053625A (en) 1981-02-04
GB2053625B true GB2053625B (en) 1983-09-01

Family

ID=26271896

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8018220A Expired GB2053625B (en) 1979-06-19 1980-06-04 Combined wired broadcasting and viewphone system

Country Status (1)

Country Link
GB (1) GB2053625B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8527038D0 (en) * 1985-11-02 1985-12-04 Midlands Video Systems Ltd Switching system
DE19607236A1 (en) * 1996-02-27 1997-08-28 Sel Alcatel Ag Communication system and transfer device for multimedia communication
RU2298489C1 (en) * 2005-11-07 2007-05-10 Игорь Владимирович Устименко Device to reduce induction effect of traction system onto adjacent communication lines

Also Published As

Publication number Publication date
GB2053625A (en) 1981-02-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930604