Threshold circuit

Details Threshold circuit Threshold circuit

1976-01-29

1977-11-01

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307360, 328115, H03K 520, H03K 518

Patent

active

040567389

ABSTRACT:
A threshold circuit for signal receiving equipment, particularly optical signals travelling to or from a rapidly flying object comprises a threshold determining device having an input accepting signal and noise pulses and an output emitting transmitted pulses which correspond to the signal and noise pulses that pass the threshold unit. Control circuits determine the threshold that is employed in response to the received signal and noise pulses. If the received signal and noise pulses have a relatively low amplitude, a relatively low predetermined threshold is employed. If the received noise and/or signal pulses increase in amplitude for a sufficient length of time, the control circuits respond by raising the threshold.

REFERENCES:
patent: 3758868 (1973-09-01), Brown
patent: 3801830 (1974-04-01), Boyer

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