Switched capacitor pilot phase and magnitude detector

Details Switched capacitor pilot phase and magnitude detector Switched capacitor pilot phase and magnitude detector

1989-08-14

1990-06-12

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

381 13, H04H 500

Patent

active

049339745

ABSTRACT:
A switched capacitor low pass filter is used to sample an FM stereo composite signal with non-overlapping clock signal to achieve phase or magnitude detection of the 19 kHz pilot without being adversely affected by the presence of information at or about 57 kHz.

REFERENCES:
patent: 4569072 (1986-02-01), van Roermund
patent: 4723286 (1988-02-01), Kamp
patent: 4860354 (1989-08-01), van Roermund

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