Title: Dynamic digital time interval discriminator and method

Abstract: Circuitry for indicating the occurrence of a predetermined separation time between adjacent pairs of pulses in a sequence of pulses including a first counter having a first relatively high frequency clock signal applied thereto and the sequence of pulses applied to reset the counter for each pulse, a second counter having a relatively low frequency clock signal applied thereto with the second counter counting the total number of cycles from an initial or starting time, and comparators for comparing the number of cycles in the first counter to the number of cycles in the second counter and providing output signals when the comparison indicates that the separation time between adjacent pairs of pulses is within a predetermined range.

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Inventors: Stauers, Juris (Tempe, AZ, US)

Application Number: 946483
Filing Date: 1978-09-28
Publication_date: 1980-11-18
Assignee: Motorola, Inc. (Schaumburg, IL)
Primary Class(es): 342/115 368/118
Other Classes:
US Patent Ref:

3537003	Oct, 1970	Planta et al.	324/186.
3660842	May, 1972	Ballantyne	343/5.

Other Refs:
Primary Examiner: Tubbesing, T. H.
Assistant Examiner:
Attorney: Parsons; Eugene A.