Distributed control teleconferencing voice bridge

Details Distributed control teleconferencing voice bridge Distributed control teleconferencing voice bridge

1989-10-31

1992-05-12

Dwyer, James L.

Telephonic communications

Telephone line or system combined with diverse electrical...

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

379203, 379205, H04M 1100

Patent

active

051134314

ABSTRACT:
An arrangement for teleconferencing voice and data is provided through an arrangement that includes a voice bridge that offers individual control of the conferencing setup. The voice bridge comprises a crossbar with crosspoints that include a series connection of two switches and a resistor. One switch of each crosspoint is associated with the row of the crosspoint while the other switch of the crosspoint is associated with the column of the crosspoint. A user, connected to a selected row and column of the crossbar for the "talk" and "listen" functions, respectively, controls the row switches in the crosspoints connected to the user's row and the column switches in the crosspoints connected to the user's column.

REFERENCES:
patent: 4082923 (1978-04-01), Okuhara
patent: 4817082 (1989-03-01), Orsic
E. D. Haszto and N. D. Weber, "ALLIANCE Teleconferencing Services Boost Business Efficiency", AT&T Technology, vol. 3, No. 1 (1988).

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