Automatic threshold circuit

Details Automatic threshold circuit Automatic threshold circuit

1975-03-31

1976-12-21

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307235K, 307237, 328147, H03K 520, H03B 302

Patent

active

039990834

ABSTRACT:
An automatic threshold circuit to establish a threshold that is a specified umber of db above the input's rms frequency weighted noise value wherein the input is compared with the feedback threshold value, the result of which is coupled to a limiter for providing an output of +1, or -1 volt, depending on the input's relationship to the reference. The output of the limiter is combined with a preselected value and integrated. The integrated output is coupled through a clamping circuit that limits its output to positive values, which values are the feedback voltage coupled to the comparator.

REFERENCES:
patent: 3548206 (1970-12-01), Ogle et al.
patent: 3576451 (1971-04-01), Markow
patent: 3737790 (1973-06-01), Brown
patent: 3743950 (1973-07-01), Sellari, Jr. et al.

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