Method and device for establishing bidirectional communications

Details Method and device for establishing bidirectional communications Method and device for establishing bidirectional communications

1987-05-04

1989-02-14

Brown, Thomas W.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379 94, 379142, 379205, 379247, 379357, H04M 157, H04M 356, H04M 1100, H04Q 372

Patent

active

048052051

ABSTRACT:
A method and a device for establishing communication between several persons distant from one another. The method allows, by means of an appropriate spatial multiplexing, speech signals and signalling signals to be transmitted simultaneously between at least two stations ST1, ST2 connected together by a special connection. Each station comprises at least one communication unit U' comprising a microphone, a badge reader identifying a person, and a synoptic panel representing the geographical situation of the stations of a same network by display constituted by diodes and the illumination state of which indicates the state of each station of the network during a conference.

REFERENCES:
patent: 3686440 (1972-08-01), Kroeger
patent: 3700814 (1972-10-01), Spraker
patent: 3725947 (1973-04-01), Albertini et al.
patent: 3870830 (1975-03-01), Tapiei
patent: 3932709 (1976-01-01), Hoff et al.
patent: 4071710 (1978-01-01), Burnett
patent: 4184048 (1980-01-01), Alcaide
patent: 4304968 (1981-12-01), Klausner et al.
patent: 4326123 (1982-04-01), Hosterman
"A Communication System for Remote Conference" published in Systems Technology, No. 24, Jun. 1976, pp. 17-21.
"The Evolution of a Multimode Multilocation Audioconferencing System" published in Electro Conference Record, vol. 4, Apr. 1979, pp. 1-11.

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