Accession Number : ADD009257

Title :   Frequency Discriminator.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Rittenbach,Otto E

Report Date : 25 Aug 1981

Pagination or Media Count : 16

Abstract : This report describes a new type of frequency discriminator in which the signal is applied to a pair of channels, one of which includes a frequency pass circuit which may comprise a parallel resonant circuit, and the other a frequency stop circuit which may comprise a resonant trap. The channels also include means to differentially shift the phases of the signals therein by 90 deg. The two channel outputs are applied to an analog multiplier and the dc value of the output thereof is the discriminator output. (Author)

Descriptors :   *Patent applications, *Discriminators, *Frequency modulation, Carrier frequencies, Bandpass filters, Bandstop filters, Dual channel, Parallel orientation, Direct current, Analog systems, Circuits, Frequency, Traps, Value, Resonance, Channels, Output

Subject Categories : Electrical and Electronic Equipment
      Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE