Circuit arrangement for the ungrounded transmission of signals t

Details Circuit arrangement for the ungrounded transmission of signals t Circuit arrangement for the ungrounded transmission of signals t

1976-02-03

1977-06-21

Rolinec, Rudolph V.

Amplifiers

Modulator-demodulator-type amplifier

330165, 330199, 330207A, H03F 338

Patent

active

040314804

ABSTRACT:
A circuit arrangement for the ungrounded transmission of signals through testing points in communication systems with the aid of high-frequency oscillations. The high-frequency oscillations are controlled on the one side of the testing point and are rectified on the other side of the testing point. The rectified signals are utilized to reproduce the signals again. A resonant circuit is adjusted to the high-frequency oscillations and is galvanically separately coupled to a high-frequency generator. The resonant circuit is also connected to a modulation circuit and to the input of the testing point. The resonant circuit is coupled inductively to a demodulation circuit which forms the output of the testing point.

REFERENCES:
patent: 2627539 (1953-02-01), Tomkins
patent: 2756286 (1956-07-01), Johnson et al.
patent: 2898454 (1959-08-01), Loughlin
patent: 3931582 (1976-01-01), Kato et al.

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