Television – Two-way video and voice communication – User positioning
Patent
1995-03-30
1996-12-31
Kostak, Victor R.
Television
Two-way video and voice communication
User positioning
348 12, 348 13, H04M 356
Patent
active
055898734
ABSTRACT:
A multipont TV conference system including a multipoint control unit connected with TV conference rooms through a communication network. The multipoint control unit includes: a register for registering names of TV conference rooms and groups, telephone numbers and seats of the rooms and flags indicating the room of a TV conference promoter, the room selected for participating the TV conference and the room not corresponding to calls from the multipoint control unit; and a control unit to control process, performed among the rooms by using registered matter in the register and images of the rooms, for selecting the room and the group, holding a TV conference, participating in a TV conference, intermediately participating in the TV conference and prohibiting the room not participating in a TV conference from observing images of and listening voice in other rooms under holding TV conferences.
REFERENCES:
patent: 4691347 (1987-09-01), Stanley et al.
patent: 5099510 (1992-03-01), Blinken, Jr. et al.
patent: 5323445 (1994-06-01), Nakatsuka
patent: 5369694 (1994-11-01), Bales et al.
patent: 5440624 (1995-08-01), Schoof, II
Natori Hiroaki
Sano Shoichi
Takei Hitoshi
Tamuki Shoichi
Flynn Nathan J.
Fujitsu Limited
Kostak Victor R.
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