Radio Receiver
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United States of America Patent
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Issued Date -
Mar 24, 2016
app pub date -
Sep 21, 2015
filing date -
Sep 24, 2014
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Abstract
An AM/FM radio receiver includes an AM/FM demodulation circuit that is configured to demodulate a signal that is received; a mute circuit that is configured to perform, on the signal demodulated by the demodulation unit, a mute process with a characteristic corresponding to an electric field strength of the signal that is received; a volume balance optimizing circuit configured to control a volume level of the signal after the mute process to be constant when the volume level of the signal is within a predetermined range; and a low-input attenuation circuit configured to receive an input signal of which the volume level has been controlled by the volume balance optimizing circuit and to attenuate the input signal when the volume level is lower than a predetermined level.
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