OFDM MODULATION SIGNAL DEMODULATOR, RECEIVING APPARATUS, AND RECEIVING AND DISPLAYING APPARATUS
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United States of America Patent
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Issued Date -
Jan 23, 2014
app pub date -
Jul 16, 2013
filing date -
Jul 23, 2012
priority date (Note) -
Abandoned
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Abstract
An OFDM modulation signal receiving apparatus by which a user can generally grasp a reception state of an OFDM modulation signal and take measures to improve the reception quality thereof. The OFDM modulation signal receiving apparatus includes: a demodulating part that demodulates an OFDM modulation signal to obtain a demodulation signal value on a modulation coordinate for each sub carrier; an intra-interval total sum value calculating part that sums up, for each frequency distribution interval of the sub carriers, comparison result values obtained by comparing the sub carrier signal value to a predetermined determination value to calculate an intra-interval total sum value of each frequency distribution interval; and a selection storage part that stores a piece of noise level data according to the intra-interval total sum value for each frequency distribution interval.
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