Patent ID: 8243579

Claim:
An OFDM receiving circuit for processing an OFDM signal, the circuit comprising: a low noise amplifier configured to amplify a received OFDM signal representing received data in an OFDM format; and a plurality of demodulation paths between the low noise amplifier and a combiner for combining data, wherein each of the plurality of demodulation paths includes an oversampled digital converter, a digital filter, and a demodulator, and is configured to receive an output signal of the low noise amplifier and to output demodulated data, wherein the OFDM signal comprises a plurality of bands each to include a plurality of OFDM sub-carriers, and each of the plurality of demodulation paths is configured to subject a down-converted OFDM signal from the low noise amplifier in a corresponding one of the plurality of bands to a respective oversampled digital converter, digital filter, and demodulator, and to output the demodulated data, wherein the combiner is configured to combine the demodulated data being outputted from the plurality of demodulation paths, to output the received data, and wherein a bandwidth of one of the plurality of bands nearest to a center frequency of the band of the OFDM signal is larger than that of one of the plurality of bands farthest from the center frequency.