Method and circuit for the demodulation of time discrete, freque

Details Method and circuit for the demodulation of time discrete, freque Method and circuit for the demodulation of time discrete, freque

1987-03-23

1988-04-12

Zazworsky, John

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

307529, H03D 100

Patent

active

047377291

ABSTRACT:
A method for demodulation of a time discrete, sampled, frequency modulated digitized signal arriving as samples, each having a digital value, at a constant rate of repetition of one clock period TA per sample, including delay lines through which the signal to be demodulated are conducted, the method which includes taking three consecutive digital samples of the signal, the first sample at the initial time T and the second sample after two clock periods and a third sample taken after one clock period respectively, adding the digital value of the first and second sample forming their sum, dividing the sum by the digital value of the third sample, forming a division, the division forming a digital sample which represents a sample of the demodulated signal.

REFERENCES:
patent: 4035735 (1977-07-01), Akashi et al.
patent: 4054841 (1977-10-01), Henaff et al.

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