Communication system using unbalanced communication paths

Details Communication system using unbalanced communication paths Communication system using unbalanced communication paths

1987-10-29

1989-03-21

LaRoche, Eugene R.

Telephonic communications

Transmission line conditioning

Interference suppression

370 6, H04J 112

Patent

active

048151270

ABSTRACT:
A signal communication apparatus is used for a telephone system having a plurality of unbalanced communication paths. A feedback line of each unbalanced communication path is connected to a ground level and each unbalanced communication path including a phase reversing transformer. The phase reversing transformer produces two induced currents in the connected path if a speech signal is transmitted through another path. The induced currents are cancelled due to mutual interference.

REFERENCES:
patent: 2233473 (1941-03-01), Dixon

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