Reception device and method for adjusting reception device
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United States of America Patent
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May 15, 2018
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N/A
app pub date -
Feb 22, 2016
filing date -
Feb 23, 2015
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Abstract
A reception device receives a radio frequency (RF) signal and obtains a data signal from the RF signal in a desired reception channel. The reception device includes a bandpass filter, and first and second test signals are input to the bandpass filter in the test mode to obtain bandpass-filtered first and second test signals, respectively. Each of frequencies of the first and second test signals is lower and higher than a frequency of the desired reception channel, respectively. The reception device detects lower and higher frequency signal intensities from the bandpass-filtered first and second test signals, respectively, in the test mode, and adjusts a central frequency of the passband of the bandpass filter using a difference between the lower and higher frequency signal intensities so as to reduce a difference between the central frequency of the passband and the frequency of the desired reception channel.
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