Digital FM demodulator and method with enhanced resolution

Details Digital FM demodulator and method with enhanced resolution Digital FM demodulator and method with enhanced resolution

1994-12-19

1996-02-27

Grimm, Siegfried H.

Demodulators

Frequency modulation demodulator

Having specific distortion, noise or other interference...

329341, 455214, 375328, H03D 300

Patent

active

054952042

ABSTRACT:
Digital FM demodulator and method in which zero-crossings of a frequency modulated input signal are detected, a binary pulse is provided for each of the zero-crossings, and the binary pulse stream is filtered digitally to provide enhanced resolution of the incremental phase (frequency) of the input signal over a period which is asynchronous with the input signal. In the disclosed embodiments, the digital filtering is done with comb decimation filters, with a higher order filter being employed where greater resolution is desired.

REFERENCES:
patent: 3571712 (1971-03-01), Hellwarth
patent: 3636454 (1972-01-01), Pasternack et al.
patent: 4541105 (1985-09-01), Lee et al.

Affiliated with

Also associated with

Rating

Digital FM demodulator and method with enhanced resolution does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1681772