Fm-demodulator

Details Fm-demodulator Fm-demodulator

H - Electricity

03

D

329/11

H03D 3/00 (2006.01) H03D 3/22 (2006.01) H04N 7/20 (2006.01)

Patent

CA 1194150

11 ABSTRACT FM-demodulator FM-demodulator for demodulating an FM-carrier which is, for example, modulated by a video signal and two sound subcarriers a Gilbert multiplier (13) and a phase shifting circuit (12) are used. Last-mentioned circuit is formed by elements of a bandpass-ladder filter consisting of at least three sections each representing one pole, the output (10) of the signal being provided before the "normal" output. This bandpass-ladder filter is of the Gaussian type.

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