Phase locked loop circuit for demodulating suppressed carrier si

Details Phase locked loop circuit for demodulating suppressed carrier si Phase locked loop circuit for demodulating suppressed carrier si

1985-10-03

1987-02-10

Grimm, Siegfried H.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329124, 370 11, 370100, 375 77, 375 81, 375 88, 375120, 455202, 455260, H03D 124, H03D 302, H04L 2722

Patent

active

046425730

ABSTRACT:
A phase locked loop circuit for use in a heterodyne receiver for stably demodulating a carrier-suppressed double-sideband signal such as a 2-phase or 4-phase PSK signal. The phase locked loop circuit comprises a reference oscillator oscillating at a frequency corresponding to an intermediate frequency, and the frequency difference between the reference frequency and the input frequency is detected by a Costas loop, a signal indicative of the frequency difference being fed back to a local oscillator through a loop filter thereby stabilizing the intermediate frequency.

REFERENCES:
patent: 4048566 (1977-09-01), Carson et al.

Affiliated with

Also associated with

Rating

Phase locked loop circuit for demodulating suppressed carrier si does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase locked loop circuit for demodulating suppressed carrier si, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase locked loop circuit for demodulating suppressed carrier si will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2364867