Title:
VIDEO COMMUNICATION NETWORK BETWEEN VIDEO PHONE TERMINAL AND SCREEN BAND
Document Type and Number:
Japanese Patent JPS5943661
Kind Code:
A
Abstract:
A videocommunication network is connected between videophone terminals and a picture bank through voice switching units and wide-band switching units included in central offices. A purely telephonic communication can be established between two videophone terminals during a videocommunication between one of the two terminals and the picture bank. Once the videocommunication has been established between the videophone terminal and the picture bank via network voice switching units, the local telephone line assigned to the videophone terminal is automatically released while only a local wide-band line assigned to the videophone terminal is occupied for exchanging vision signals and also data signals with the picture bank via wide-band switching units.
Inventors:
ARAN POWARIE
Application Number:
JP13874583A
Publication Date:
March 10, 1984
Filing Date:
July 30, 1983
Export Citation:
Assignee:
ARAN POWARIE
International Classes:
H04M11/06; H04M3/00; H04M11/00; H04M11/08; H04N7/14; (IPC1-7): H04M3/00; H04M11/06; H04N7/14
Attorney, Agent or Firm:
Keiichi Yamamoto