Television – Two-way video and voice communication – User positioning
Patent
1994-05-17
1998-10-06
Flynn, Nathan J.
Television
Two-way video and voice communication
User positioning
379158, 379202, 370 62, H04N 715, H04N 536
Patent
active
058185135
ABSTRACT:
A multi-site video conference control system comprising a number of video conference terminals respectively situated at a number of sites and a video conference control unit for controlling a video conference. A communication line interface provided at each terminal makes a single calling with respect to the video conference control unit. A connection data section, which is provided at each terminal, manages connection data for other terminals to be connected and transmits the connection data to the video conference control unit. A control calling section, which is provided at the video conference control unit, calls the terminal corresponding to the connection data to be transmitted from the connection data section, based on the single calling. A connection controller, which is provided at the video conference control unit, connects the calling terminal, whose communication line interface made the single calling, and the other terminals called by the control calling section, with communication lines.
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patent: 4995071 (1991-02-01), Weber et al.
patent: 5408526 (1995-04-01), McFarland et al.
"Multipoint Multimedia Conference", IEEE Communications Magazine, May 1992, pp. 44-50.
IEEE INFOCOM' 91--The Conference on Computer Communications--Proceedings vol. 3, 11 Apr. 1991, Bal Harbour, FL, pp. 1127-1144, Tanigawa et al, "Personal Multimedia-Multipoint Teleconference System".
Hatanaka Masanobu
Natori Hiroaki
Okazaki Reiko
Sano Shoichi
Takei Hitoshi
Flynn Nathan J.
Fujitsu Limited
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