Multiplex communications – Wide area network – Packet switching
Patent
1981-10-02
1984-10-16
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 11, H04B 156
Patent
active
044778961
ABSTRACT:
A communication system is described in which information may be simultaneously transmitted in both directions over a single common wire between a base unit and a plurality of remote units. The information from the remote units is sent in the form of time divided multiplexed current pulses and the information from the base units is sent in the form of time divided voltage pulses. Optionally, the voltage signals ride on top of a D.C. potential which is extracted at the remoted units to power them.
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