Method of and means for establishing two-way communication betwe

Details Method of and means for establishing two-way communication betwe Method of and means for establishing two-way communication betwe

1978-01-13

1979-07-24

Robinson, Thomas A.

Telegraphy

Systems

Printing

179 16F, H04L 514

Patent

active

041623711

ABSTRACT:
Two stations of a telecommunication system, interconnected by a single two-way signal link, have respective signal transmitters each working into an impedance network with a first branch connected to the two-way link and a second branch forming a voltage divider. Each station also has a signal receiver energized through a comparator which recovers the incoming signal from a composite signal present at a junction point between the two-way link and the first network branch by subtracting a balancing signal, available at the voltage divider, from this composite signal. The comparator may comprise a differential amplifier or a digital subtractor.

REFERENCES:
patent: 3519743 (1970-07-01), Herter
patent: 3862364 (1975-01-01), Inose et al.
patent: 4012590 (1977-03-01), Haass

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