Low frequency AM stereophonic broadcast and receiving apparatus

Details Low frequency AM stereophonic broadcast and receiving apparatus Low frequency AM stereophonic broadcast and receiving apparatus

1980-04-23

1982-06-01

Bookbinder, Marc E.

H04H 500

Patent

active

043329780

ABSTRACT:
Apparatus is described for transmitting and receiving stereophonic broadcasts in the low frequency commercial AM broadcast band. A transmitter is described which modulates the phase and amplitude of a broadcast signal with separate information signals. A pilot tone may also be included to identify the transmission as stereophonic. Receiving means for detecting the PM and AM components to derive separate signals for stereophonic reception are included.

REFERENCES:
patent: 3089095 (1963-05-01), Webb
patent: 3167614 (1965-01-01), Holt et al.
patent: 3218393 (1965-11-01), Kahn
patent: 3908090 (1975-09-01), Kahn

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