H - Electricity – 03 – D
Patent
H - Electricity
03
D
H03D 1/24 (2006.01) H03D 1/04 (2006.01) H03D 1/22 (2006.01)
Patent
CA 2516767
A method of processing an AM radio signal comprises the step of receiving an AM radio signal including an upper sideband portion and a lower sideband portion, demodulating the upper sideband portion and the lower sideband portion to produce a demodulated upper sideband signal and a demodulated lower sideband signal, weighting the demodulated upper sideband signal and the demodulated lower sideband signal in response to noise power to produce a weighted demodulated upper sideband signal and a weighted demodulated lower sideband signal, and combining the weighted demodulated upper sideband signal and the weighted demodulated lower sideband signal to produce an output signal. Demodulators which process AM radio signals in accordance with the method, and receivers incorporating the demodulators, are also included.
Procédé servant à traiter un signal radio AM et consistant à recevoir un signal radio AM comprenant une partie de bande latérale supérieure et une partie de bande latérale inférieure, à démoduler ces parties de bande latérale supérieure et inférieure afin de produire un signal de bande latérale supérieure démodulé et un signal de bande latérale inférieure démodulé, à pondérer ces signaux démodulés en réponse à la puissance du bruit afin de produire des signaux démodulés et pondérés et à combiner ces signaux démodulés et pondérés afin de produire un signal de sortie. Démodulateurs servant à traiter des signaux radio AM selon ce procédé et recepteurs incorporant ces démodulateurs.
Kroeger Brian William
Ibiquity Digital Corporation
Smart & Biggar
LandOfFree
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