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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...

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Bibliographische Detailangaben
1. Verfasser:	GUSTAFSON K A H
Format:	Patent
Sprache:	swe
Schlagworte:	AIMING AMMUNITION AMMUNITION FUZES ARMING OR SAFETY MEANS THEREFOR BLASTING CONTROLLING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HEATING LIGHTING MECHANICAL ENGINEERING PHYSICS REGULATING SELECTING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES WEAPON SIGHTS WEAPONS
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Beschreibung
Zusammenfassung:	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.