Dropout compensation circuit

Details Dropout compensation circuit Dropout compensation circuit

1983-02-08

1985-04-02

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358163, 358167, 358314, 358336, 360 381, H04N 514, H04N 521

Patent

active

045090785

ABSTRACT:
A dropout compensation circuit includes a low-pass filter and sequential first and second buffer amplifiers. Between the buffer amplifiers is arranged a switch which is opened in response to dropout detection, and a capacitor for holding the input voltage. A feedback circuit is connected between the output of the second buffer amplifier and the input of the first buffer amplifier, which may include a switch or a feedback resistor.

REFERENCES:
patent: 3969759 (1976-07-01), Amery
patent: 3989893 (1976-11-01), Eisema
patent: 4076969 (1978-02-01), Sacks
patent: 4376289 (1983-03-01), Reitmeier et al.

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