GB2022963A - A communication system - Google Patents

A communication system

Info

Publication number
GB2022963A
GB2022963A GB7826475A GB7826475A GB2022963A GB 2022963 A GB2022963 A GB 2022963A GB 7826475 A GB7826475 A GB 7826475A GB 7826475 A GB7826475 A GB 7826475A GB 2022963 A GB2022963 A GB 2022963A
Authority
GB
United Kingdom
Prior art keywords
signals
audio
video
cable
domestic
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.)
Withdrawn
Application number
GB7826475A
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.)
Sims Williams C T
Original Assignee
Sims Williams C T
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 Sims Williams C T filed Critical Sims Williams C T
Priority to GB7826475A priority Critical patent/GB2022963A/en
Publication of GB2022963A publication Critical patent/GB2022963A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
    • 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
    • H04N7/148—Interfacing a video terminal to a particular transmission medium, e.g. ISDN

Abstract

A communication system comprising an apparatus 1 which will accept television video signals and/or audio signals and/or control signals, and enable a domestic TV receiving set 4 connected at the end of a single cable 5 remote from the apparatus to be used as a TV video and/or sound monitor. A controller may be added at the remote end of the cable to control the camera, audio circuits, and provide a call system. By using different frequencies two or more such systems may use the same cable, and simultaneous two way sound and vision links may be set up. Also a domestic TV may be used to select one of a number of camera signals by means of its tuning push buttons. The audio 3 and video 2 inputs are modulated M1, M2 on respective carriers. <IMAGE>
GB7826475A 1978-06-07 1978-06-07 A communication system Withdrawn GB2022963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7826475A GB2022963A (en) 1978-06-07 1978-06-07 A communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7826475A GB2022963A (en) 1978-06-07 1978-06-07 A communication system

Publications (1)

Publication Number Publication Date
GB2022963A true GB2022963A (en) 1979-12-19

Family

ID=10497887

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7826475A Withdrawn GB2022963A (en) 1978-06-07 1978-06-07 A communication system

Country Status (1)

Country Link
GB (1) GB2022963A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885795A (en) * 1987-11-06 1989-12-05 Bunting, Inc. Hospital digital data transfer system
EP0420289A2 (en) * 1989-09-28 1991-04-03 Matsushita Electric Industrial Co., Ltd. Cable-saving type CCTV system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885795A (en) * 1987-11-06 1989-12-05 Bunting, Inc. Hospital digital data transfer system
EP0420289A2 (en) * 1989-09-28 1991-04-03 Matsushita Electric Industrial Co., Ltd. Cable-saving type CCTV system
EP0420289A3 (en) * 1989-09-28 1992-05-06 Matsushita Electric Industrial Co., Ltd. Cable-saving type cctv system
US5623304A (en) * 1989-09-28 1997-04-22 Matsushita Electric Industrial Co., Ltd. CCTV system using multiplexed signals to reduce required cables

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)