Television – Two-way video and voice communication – User positioning
Patent
1993-03-26
1996-10-15
Groody, James J.
Television
Two-way video and voice communication
User positioning
348 16, 370 62, H04N 715
Patent
active
055659101
ABSTRACT:
A data and television network for digital computer workstations that operate on a local area network (LAN) to exchange data. The network includes a private branch exchange (PBX) having a plurality of television ports for transmitting and receiving television signals, an electronic switch for selectively connecting each television port with any other television port, and a control computer (PC), connected to the LAN and to the switch, for decoding data messages received from a workstation via the LAN and controlling the interconnection of the television ports by the switch in response thereto. A software program, stored in and operable on the computer of each workstation, generates the data messages to be transmitted via the LAN to the control computer of the PBX.
REFERENCES:
patent: 4564940 (1986-01-01), Tahata
patent: 4847829 (1989-07-01), Tompkins et al.
patent: 4885747 (1989-12-01), Foglia
patent: 5010399 (1991-04-01), Goodman et al.
Daskalakis, A "Key Systems for Picturephone .TM. Service" Bell Laboratories Record pp. 270-277 Oct. 1971.
Brown Floyd
Gunnarsson Gunnar
Marzullo Daniel
Rowse William T.
Groody James J.
Harvey David E.
Vionx, Inc.
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