GB2294377A - Video-telephony communication apparatus - Google Patents

Video-telephony communication apparatus

Info

Publication number
GB2294377A
GB2294377A GB9525751A GB9525751A GB2294377A GB 2294377 A GB2294377 A GB 2294377A GB 9525751 A GB9525751 A GB 9525751A GB 9525751 A GB9525751 A GB 9525751A GB 2294377 A GB2294377 A GB 2294377A
Authority
GB
United Kingdom
Prior art keywords
video
telephony
communication apparatus
avx
telephony communication
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.)
Granted
Application number
GB9525751A
Other versions
GB2294377B (en
GB9525751D0 (en
Inventor
Anthony John Mullett
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.)
Amulet Electronics Ltd
Original Assignee
Amulet Electronics 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
Priority claimed from GB939312625A external-priority patent/GB9312625D0/en
Priority claimed from GB9407371A external-priority patent/GB9407371D0/en
Application filed by Amulet Electronics Ltd filed Critical Amulet Electronics Ltd
Publication of GB9525751D0 publication Critical patent/GB9525751D0/en
Publication of GB2294377A publication Critical patent/GB2294377A/en
Application granted granted Critical
Publication of GB2294377B publication Critical patent/GB2294377B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/567—Multimedia conference systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

At a video-telephony station control signals are generated e.g. by a mouse (104) or keyboard (103) and are sent to a remote audio-video exchange (AVX) together with video signals from a camera (105) and telephony traffic from a microphone (107) or telephone handset (108) for example. The AVX includes a control device, e.g. a microcontroller (116), which responds to the control signals to control telephony and video switching networks (117 and 118) to ensure parallel routing of the audio and video traffic. <IMAGE>
GB9525751A 1993-06-18 1994-06-17 Video-telephony communication apparatus Expired - Fee Related GB2294377B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB939312625A GB9312625D0 (en) 1993-06-18 1993-06-18 Video-telephony networks
GB9407371A GB9407371D0 (en) 1994-04-14 1994-04-14 Video-telephony communication system
PCT/GB1994/001318 WO1995001055A1 (en) 1993-06-18 1994-06-17 Video-telephony communication apparatus

Publications (3)

Publication Number Publication Date
GB9525751D0 GB9525751D0 (en) 1996-02-21
GB2294377A true GB2294377A (en) 1996-04-24
GB2294377B GB2294377B (en) 1998-01-28

Family

ID=26303088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9525751A Expired - Fee Related GB2294377B (en) 1993-06-18 1994-06-17 Video-telephony communication apparatus

Country Status (2)

Country Link
GB (1) GB2294377B (en)
WO (1) WO1995001055A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318021A (en) * 1996-10-03 1998-04-08 Motorola Inc wireline audio and vidoe conferencing and telephony
GB2319434A (en) * 1996-09-18 1998-05-20 Motorola Inc Audio/video conferencing and telephony

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020091850A1 (en) 1992-10-23 2002-07-11 Cybex Corporation System and method for remote monitoring and operation of personal computers
US5721842A (en) * 1995-08-25 1998-02-24 Apex Pc Solutions, Inc. Interconnection system for viewing and controlling remotely connected computers with on-screen video overlay for controlling of the interconnection switch
US6346964B1 (en) * 1996-12-31 2002-02-12 Video Networkcommunications, Inc. Interoffice broadband communication system using twisted pair telephone wires

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3816428A1 (en) * 1987-05-13 1988-12-08 Ricoh Kk IMAGE TRANSFER SYSTEM
GB2253120A (en) * 1991-02-12 1992-08-26 Terence John Edward Mechan A linked video telephone system
EP0528732A1 (en) * 1991-08-21 1993-02-24 Matra Communication Videophone method and installation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3816428A1 (en) * 1987-05-13 1988-12-08 Ricoh Kk IMAGE TRANSFER SYSTEM
GB2253120A (en) * 1991-02-12 1992-08-26 Terence John Edward Mechan A linked video telephone system
EP0528732A1 (en) * 1991-08-21 1993-02-24 Matra Communication Videophone method and installation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AT&T AND PHILIPS TELECOMMUNICATIONS: TRENDS IN TELE. vol2, no.1 1986 NURNBER, DE pages 13-27 *
Hitachi Review, vol 40. No.3, June 1991. TOKYO, JP Pages 257-262, XP277449 TAKIZAWA ET AL 'Desktop *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319434A (en) * 1996-09-18 1998-05-20 Motorola Inc Audio/video conferencing and telephony
GB2318021A (en) * 1996-10-03 1998-04-08 Motorola Inc wireline audio and vidoe conferencing and telephony

Also Published As

Publication number Publication date
GB2294377B (en) 1998-01-28
WO1995001055A1 (en) 1995-01-05
GB9525751D0 (en) 1996-02-21

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Legal Events

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

Effective date: 19990617