Apparatus for coupling a two-way transmission path to a one-way

Details Apparatus for coupling a two-way transmission path to a one-way Apparatus for coupling a two-way transmission path to a one-way

1980-04-11

1982-04-20

Konick, Bernard

H04B 158

Patent

active

043261094

ABSTRACT:
A one-way receiving path is connected to the input side of a first phase-shift network which produces signals in phase quadrature at its output side, which is connected to the input side of a second phase-shift network which is conjugate to the first and whose output side is connected to a one-way transmitting path. A two-way transmission path and a balancing impedance are connected to the junction between the phase-shift networks. The arrangement provides a balanced or unbalanced hybrid circuit. Each phase-shift network can comprise a symmetrical polyphase network with cascaded network sections for handling voice frequency signals.

REFERENCES:
patent: 1666206 (1928-04-01), Hartley
patent: 3329897 (1967-07-01), Preble
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patent: 3559042 (1971-01-01), Gingell
patent: 3740756 (1973-06-01), Sosin
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patent: 3823272 (1974-07-01), Tabalba
patent: 3849609 (1979-11-01), Voorman
patent: 3899643 (1975-08-01), Tabalba
patent: 4123712 (1978-10-01), Mikhael

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