H - Electricity – 04 – H
Patent
H - Electricity
04
H
325/37
H04H 5/00 (2006.01)
Patent
CA 1116242
PHM 40408 LOW FREQUENCY AM STEREOPHONIC BROADCAST AND RECEIVING APPARATUS Abstract of the Disclosure 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.
299405
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
LandOfFree
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