Transmitting and receiving apparatus

Details Transmitting and receiving apparatus Transmitting and receiving apparatus

1975-04-02

1977-01-11

Claffy, Kathleen H.

179 1HF, 179102, H04B 152, H04B 336

Patent

active

040028607

ABSTRACT:
Only one reversible electro-acoustic converter is used to act without a press-to-talk switch or the like as a transmitter and a receiver. The electro-acoustic converter is connected to a communication line through two 2 - 4 converters in the form of hybrid transformers which are interconnected to form a transmitting system and a receiving system.

REFERENCES:
patent: 2282465 (1942-05-01), Edwards
patent: 2535063 (1950-12-01), Halstead
patent: 2812388 (1957-11-01), Thomas
patent: 3178648 (1965-04-01), Tanner
patent: 3778563 (1973-12-01), Bise et al.
patent: 3784755 (1974-01-01), Cambridge et al.
patent: 3889058 (1975-06-01), Gabr
patent: 3908095 (1975-09-01), Jinsenji
patent: 3946169 (1976-03-01), Miya

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