1984-05-31
1985-11-19
Rubinson, Gene Z.
179 99A, 179 99R, H04M 906, H04M 908
Patent
active
045544131
ABSTRACT:
A key telephone system uses four wires for transmission of voice and audio signals to and from the telephone stations and other components which are part of the system. A plurality of telephone stations are provided, each having a two wire audio input port, a separate two wire audio output port, and a data port. Communcation paths are established through a crosspoint matrix. The matrix includes a first group of addressable crosspoint switches for coupling selected transmit signal paths to selected first link points. A second group of such switches is provided for coupling selected receive signal paths to selected second link points. A third group of such switches couples selected first link points to selected second link points. A link searching routine determines which links are available for effecting communication paths. A minimizing function shares communication paths among common signals when possible.
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Faublas Serge
Pinede Edouard
Stevens Peter F.
Di Vito Elio
Lipsitz Barry R.
PKS/Communications, Inc.
Rubinson Gene Z.
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