CA2073920A1 - Teleconference terminal equipment and teleconference module - Google Patents

Teleconference terminal equipment and teleconference module

Info

Publication number
CA2073920A1
CA2073920A1 CA2073920A CA2073920A CA2073920A1 CA 2073920 A1 CA2073920 A1 CA 2073920A1 CA 2073920 A CA2073920 A CA 2073920A CA 2073920 A CA2073920 A CA 2073920A CA 2073920 A1 CA2073920 A1 CA 2073920A1
Authority
CA
Canada
Prior art keywords
control unit
teleconference
terminal equipment
control
camera
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
CA2073920A
Other languages
French (fr)
Other versions
CA2073920C (en
Inventor
Yoji Shibata
Masaaki Takizawa
Hitoshi Matsushima
Kiyoshi Ishida
Atsuo Yoshida
Atsushi Ishibashi
Takehiko Yamada
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.)
Hitachi Ltd
Original Assignee
Yoji Shibata
Masaaki Takizawa
Hitoshi Matsushima
Kiyoshi Ishida
Atsuo Yoshida
Atsushi Ishibashi
Takehiko Yamada
Hitachi, 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 JP3174046A external-priority patent/JPH0522719A/en
Priority claimed from JP4014173A external-priority patent/JPH05207452A/en
Application filed by Yoji Shibata, Masaaki Takizawa, Hitoshi Matsushima, Kiyoshi Ishida, Atsuo Yoshida, Atsushi Ishibashi, Takehiko Yamada, Hitachi, Ltd. filed Critical Yoji Shibata
Publication of CA2073920A1 publication Critical patent/CA2073920A1/en
Application granted granted Critical
Publication of CA2073920C publication Critical patent/CA2073920C/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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems

Abstract

A teleconference terminal equipment adapted to construct an AV meeting system as an intended use, comprising a network interface and communications network control unit, a multimedia multiplexing/demultiplexing and interterminal signal control unit which multiplexes and demultiplexes video data and control data contained in a communication frame to be transmitted by the control unit and a communication frame received by the same, respectively, a picture codec which codes and decodes video data, a video input/output interface which connects an external camera to the picture codec, a camera control/external device multiconnector, and a CPU which controls an operation of the external camera through the multiconnector on the basis of control data delivered from the control unit.
CA002073920A 1991-07-15 1992-07-15 Teleconference terminal equipment and teleconference module Expired - Fee Related CA2073920C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP3-174046 1991-07-15
JP3174046A JPH0522719A (en) 1991-07-15 1991-07-15 Av meeting terminal
JP4-14173 1992-01-29
JP4014173A JPH05207452A (en) 1992-01-29 1992-01-29 Video conference module

Publications (2)

Publication Number Publication Date
CA2073920A1 true CA2073920A1 (en) 1993-01-16
CA2073920C CA2073920C (en) 1998-11-24

Family

ID=26350071

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002073920A Expired - Fee Related CA2073920C (en) 1991-07-15 1992-07-15 Teleconference terminal equipment and teleconference module

Country Status (5)

Country Link
US (3) US5477546A (en)
EP (2) EP0523617B1 (en)
AU (2) AU645431B2 (en)
CA (1) CA2073920C (en)
DE (1) DE69222479T2 (en)

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AU1963992A (en) 1993-01-21
EP0778704A2 (en) 1997-06-11
EP0778704A3 (en) 1997-08-20
US5477546A (en) 1995-12-19
DE69222479T2 (en) 1998-04-09
AU645431B2 (en) 1994-01-13
CA2073920C (en) 1998-11-24
US5606554A (en) 1997-02-25
EP0523617B1 (en) 1997-10-01
US5936945A (en) 1999-08-10
EP0523617A3 (en) 1993-09-15
EP0523617A2 (en) 1993-01-20
DE69222479D1 (en) 1997-11-06
AU5182793A (en) 1994-02-03
AU661928B2 (en) 1995-08-10

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