Pilot tone demodulator

Details Pilot tone demodulator Pilot tone demodulator

1977-01-03

1978-07-11

Claffy, Kathleen H.

179 15BT, 325 36, 325 49, H04B 168, H04B 310

Patent

active

041003764

ABSTRACT:
A communication system for inphase and quadrature modulation of low frequency signals wherein the modulated signal frequency bands lie close to a carrier, the system including a pilot tone having a fixed frequency ratio to the carrier, the system further including a demodulator employing the pilot tone in a phase locked loop for synthesizing a coarse replica of the carrier, a filter incorporating inphase and quadrature channels utilizing the coarse carrier for extracting the actual carrier from the modulated signal spectrum and synchronous detection of the signals by means of the extracted carrier.

REFERENCES:
patent: 3571717 (1971-03-01), Monrolin
patent: 3594651 (1971-07-01), Wolejsza
patent: 3701023 (1972-10-01), Fang

Affiliated with

Also associated with

Rating

Pilot tone demodulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-263692