Digital FM demodulation apparatus demodulating sampled digital F

Details Digital FM demodulation apparatus demodulating sampled digital F Digital FM demodulation apparatus demodulating sampled digital F

1994-01-05

1995-08-22

Pascal, Robert J.

Demodulators

Frequency modulation demodulator

Input signal converted to and processed in pulse form

329343, 455214, H03D 100

Patent

active

054444160

ABSTRACT:
The digital FM demodulation apparatus includes a sampling unit, a frequency specifying unit, and a demodulated value specifying unit. The sampling unit samples an FM modulated wave at predetermined intervals. The frequency specifying unit specifies a frequency of the FM modulated wave at the time of sampling based on a plurality of sampled values. The demodulated value specifying unit specifies a demodulated value corresponding to the frequency to provide the demodulated value.

REFERENCES:
patent: 4543532 (1985-09-01), Kasser
patent: 4567442 (1986-01-01), Haussmann
patent: 4875017 (1989-10-01), Sakazaki
patent: 4994754 (1991-02-01), Ohta
"Digital Circuits for Television Signal" by Yoshizumi Eto et al., Sep. 25, 1989 p. 76.
Nikkei Electronics 1992 Dec. 7 (No. 569) Masao Tomita et al pp. 165-170.

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