FM receiver with digitally controlled antenna tuning circuitry

Details FM receiver with digitally controlled antenna tuning circuitry FM receiver with digitally controlled antenna tuning circuitry

2007-08-08

2010-11-09

Wendell, Andrew (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

C455S161300, C455S173100, C455S182300, C375S224000, C375S346000

Reexamination Certificate

active

07831229

ABSTRACT:
An FM receiver including an FM antenna that receives continuous wavelength signals, where the FM receiver is coupled to the FM antenna and operable to alter a center frequency of a gain profile of the FM antenna. The FM receiver includes a low noise amplifier module that is coupled to amplify the continuous wavelength signal to produce an amplified RF signal therefrom. A down conversion module is coupled to mix the amplified RF signal with a local oscillation to produce an information signal. A filter module is coupled to filter the information signal to produce a filtered information signal. A demodulation module is coupled to capture audio information from the filtered information signal. A signal monitoring module is coupled to monitor the FM signal quality of a received continuous wavelength signal. The signal monitoring module produces a signal quality indication therefrom. An antenna control module produces a signal value based upon the signal quality indication, wherein the signal value operates to alter the center frequency of a gain profile of the FM antenna.

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