Accession Number : AD0164972
Title : Digital Frequency Discriminator.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Phillips,T. H.
Report Date : 22 MAY 1973
Pagination or Media Count : 7
Abstract : The patent describes a digital frequency comparator for determining the difference in frequency between two time-dependent input waveforms and for futher determining the sign relationship therebetween. Each of the input waveforms is applied to a bistable circuit arrangement which, through the use of logical coincidence gates, modulates the input data into a time-ordered format. A memory bistable circuit in conjunction with further logical coincidence circuit arrangements determines from the time reordered input waveform which one of said waveforms has the greater frequency along with the frequency difference therebetween.
Descriptors : *Comparators, *Patents, Discriminators, Digital systems, Bistable devices, Gates(Circuits)
Subject Categories : Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE