Article
Tone Detector (Using Spectral Moments) U.S. Patent 3,937,899
Engineering Faculty Publications
Document Type
Patent
Publication Date
2-1-1976
Disciplines
Abstract
A tone detector circuit for detecting the presence of a certain tone or tones in an input signal. An estimate is calculated for each of the following three parameters of the band limited spectrum of the input signal: total power, power mean frequency, and mean square power bandwidth. Each of the three input spectrum parameters is compared to the same parameter of the tone or tones desired to be detected. If a match within certain bounds occurs on all three parameters, the desired signal has been detected.
Published Citation
Denenberg; Jeffrey Neil. Tone Detector (Using Spectral Moments) U.S. Patent 3,937,899 issued February, 1976
Citation Information
Jeffrey N. Denenberg. "Tone Detector (Using Spectral Moments) U.S. Patent 3,937,899" (1976) Available at: http://works.bepress.com/jeffrey_denenberg/19/
U.S. Patent 3,937,899 issued February, 1976