Tone decoder

Details Tone decoder Tone decoder

1987-06-29

1988-09-06

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328133, 328140, 307520, 307522, 36472409, 36472803, H03K 906, G06F 738

Patent

active

047696109

ABSTRACT:
This tone decoder utilizes three correlators for detecting the presence of a desired tone signal. A main correlator correlates to the desired tone frequency, while two side correlators are used to correlate to frequencies above and below the desired tone frequency. Tone detection is indicated by correlation of the main correlation and absence of correlation by the side correlators. Improved bandwidth and/or correlation time is achieved as compared to utilizing a single correlator.

REFERENCES:
patent: 3806938 (1974-04-01), Zegarski et al.
patent: 3937899 (1976-02-01), Denenberg
patent: 3993956 (1976-11-01), Gilmore et al.
patent: 4216463 (1980-05-01), Backof, Jr. et al.
patent: 4302817 (1981-11-01), Labedz
patent: 4513385 (1985-04-01), Muri
patent: 4660164 (1987-04-01), Leibowitz

Affiliated with

Also associated with

Rating

Tone decoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tone decoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tone decoder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1608529