FM-stereo receiver

Details FM-stereo receiver FM-stereo receiver

1984-12-21

1987-04-14

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

329123, 329130, H04H 500

Patent

active

046584234

ABSTRACT:
In an FM-stereo receiver the demodulated stereo-difference signal is mixed with a non-sinusoidal signal of the sub-carrier frequency and the mixing product is used to modulate the frequency of an oscillator by means of which the aerial signal is converted to the intermediate frequency range. Interference in the reception is avoided because of the fact that the signal used for modulating the oscillator is free from third and fifth harmonics of the sub-carrier frequency.

REFERENCES:
patent: 4300020 (1981-11-01), Toyomaki
patent: 4502148 (1985-02-01), Ishida et al.
patent: 4523328 (1985-06-01), Kasperkovitz

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