Phase demodulator

Details Phase demodulator Phase demodulator

H - Electricity

03

K

329/11

H03K 9/04 (2006.01) H03D 3/00 (2006.01) H03D 3/18 (2006.01) H03D 3/24 (2006.01)

Patent

CA 1045219

PHASE DEMODULATOR ABSTRACT OF THE DISCLOSURE A reference carrier signal is combined with a phase modu- lated signal of the same basic frequency to generate an output signal the amplitude of which varies in accordance with the phase difference between the phase modulated signal and the reference carrier. The permissible modulation angle is in- creased by vectorally adding the phase modulated signal with a reference signal having a phase different from the compari- son reference carrier. The vector sum signal is amplitude- limited so that the signal produced by the comparison will only be responsive to phase angle and not amplitude.

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