Transition detector

Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons

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Details

307353, 307358, 328114, 328132, H03K 5153

Patent

active

040398587

ABSTRACT:
A circuit for detecting the transition of an input signal from one level to another includes comparator means having one input to which is applied the input signal and having another input connected to a digital storage means. The input signal is coupled to the digital storage means via a sampling gate which is controlled by means of feedback derived from the output of the comparator means. The comparator means compares the instantaneous value of the signal versus a previous value of the signal sampled via the sampling means and stored in the storage means. When the input signal changes level and assumes a new value, different from the stored value, the output of the comparator means goes from a first binary value to a second binary value enabling the sampling means and causing the new value of the input signal to be applied to and stored in the digital storage means. The output of the comparator means then returns to the first binary value disabling the sampling means.

REFERENCES:
patent: 3958132 (1976-05-01), Livesay

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