Receiver circuit for automatic correction of DC level disturbanc

Details Receiver circuit for automatic correction of DC level disturbanc Receiver circuit for automatic correction of DC level disturbanc

1975-11-24

1977-06-14

Griffin, Robert L.

Telegraphy

Code transmitters

Rotary contact

325324, 325474, H04L 1524

Patent

active

040299040

ABSTRACT:
In a receiver of a transmission system for binary pulse signals whose DC level is disturbed during transmission, an accurate correction of the disturbing DC components is obtained even for pulse signals deviating considerably from the nominal transmission speeds and peak values, by using a correction circuit having two parallel branches between input and output. The first branch includes a capacitor between input and output and the second branch includes a peak detector and a comparator which co-operate for generating a binary decision signal which is applied to the output via a resistor. The AC components of the pulse signals are only passed through the first branch and the DC components inherent in the pulse signals are only passed through the second branch.

REFERENCES:
patent: 3008007 (1961-11-01), De Koker et al.
patent: 3590386 (1971-06-01), Tisi
patent: 3778722 (1973-12-01), Stein

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