Binary frequency-shift keying demodulator and...

Details Binary frequency-shift keying demodulator and... Binary frequency-shift keying demodulator and...

2006-01-24

2006-01-24

Mis, David (Department: 2817)

Demodulators

Frequency shift keying or minimum shift keying demodulator

C329S301000, C375S324000, C375S334000

Reexamination Certificate

active

06989710

ABSTRACT:
A BFSK demodulator comprises a three-channel frequency-to-voltage converter, an information signal inputting the first-channel frequency-to-voltage converter, a converted information signal inputting the second-channel frequency-to-voltage converter, wherein outputs of first and second channel frequency-to-voltage converter are connected with a capacitor, a output voltage signal produced by the first and second frequency-to-voltage converters and the capacitor, inputting into a positive terminal of the comparator after high frequency noise filtering through a first low-pass filter, a carrier signal inputs into the third-channel frequency-to-voltage converter; and an output from the third-channel frequency-to-voltage converter connected to a capacitor; and a reference voltage signal is produced after high frequency noise filtering through a second low-pass filter, producing a demodulated signal after comparing the information voltage signal with the reference voltage.

REFERENCES:
patent: 5022055 (1991-06-01), Leveque
patent: 6480060 (2002-11-01), Kawai

Affiliated with

Also associated with

Rating

Binary frequency-shift keying demodulator and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3569508