Stereo broadcast system

Details Stereo broadcast system Stereo broadcast system

1981-08-21

1983-09-27

Griffin, Robert L.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329 50, H04H 500

Patent

active

044069227

ABSTRACT:
The signal transmitted is a compatible amplitude modulated carrier with amplitude directly proportional to the monaural information or 1+L+R up to a frequency near the upper end of the normal program spectrum. Above the transition region, the amplitude becomes a pure quadrature function. The instantaneous phase varies as a function of the quadrature phase relationship. Transmitter and receiver embodiments are disclosed.

REFERENCES:
patent: 3067293 (1962-12-01), Moore
patent: 3102167 (1963-08-01), Barton
patent: 3217105 (1965-11-01), Barton
patent: 3231672 (1966-01-01), Collins, Jr. et al.
patent: 3732375 (1973-05-01), Huribayashi
patent: 4218586 (1980-08-01), Parker
patent: 4236042 (1980-11-01), Leitch

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