Signal stability recognition

Details Signal stability recognition Signal stability recognition

1980-07-07

1983-03-01

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307200A, 307517, 307359, 3281291, H03K 1728, H03K 526

Patent

active

043756018

ABSTRACT:
Apparatus for indicating when an analog or digital input signal remains sufficiently stable for a predetermined length of time. The apparatus continuously monitors the input signal instead of sampling it only at discrete points in time. The apparatus includes a memory which stores the value of the input signal at the time of the most recent occurrence of a reset signal, a comparator which produces the reset signal whenever the input signal differs from the memory signal by an amount greater than that allowed by a predetermined comparison criterion, and a timer for indicating that the input signal is stable when the reset signal has not been produced for a time exceeding the predetermined length of time.

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