Pulse or digital communications – Receivers – Amplitude modulation
Reexamination Certificate
2006-10-24
2006-10-24
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Receivers
Amplitude modulation
C375S235000, C375S316000, C375S270000, C455S296000, C455S126000, C370S529000
Reexamination Certificate
active
07127008
ABSTRACT:
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.
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Fan Chieh M.
iBiquity Digital Corporation
Lenart, Esq. Robert P.
Pietragallo Bosick & Gordon LLP
Zheng Eva
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