Patent ID: 6744828
Filing Date: 2004-06-01
Classification: H04L

Abstract:
A receiving apparatus for receiving an OFDM signal which is transmitted in a form of a frame having a no-signal portion and a data portion subjected to OFDM modulation by a plurality of sub-carriers,said receiving apparatus comprising: frequency conversion section for converting a tuned signal into an intermediate frequency signal; noise detection section for detecting a noise component contained in said no-signal portion as a noise component contained in a signal of the sub-carrier frequencies; and frequency deviation section for deviating the intermediate frequency within an interval of the sub-carrier frequencies in accordance with the noise component contained in said no-signal portion detected by said noise detection section; and error rate detection section for detecting an error rate at a time of decoding data contained in said data portion, wherein said frequency deviation section deviates the intermediate frequency within the interval of the sub-carrier frequencies in accordance with the noise component contained in said no-signal portion detected by said noise detection section and the error rate thus detected.