Patent ID: 7970371

Claim:
A receiving apparatus comprising: a receiving portion for receiving a wireless signal generated on the basis of a baseband signal having either a predetermined frequency band or a baseband signal having any of partial frequency bands gained by dividing the predetermined frequency band into a number of portions; a signal processing portion for carrying out a frequency conversion on the wireless signal received by the receiving portion so as to generate the baseband signal; a band shifter for shifting the frequency band of the baseband signal by such an amount of shift that the center frequency of at least a specific partial frequency band is in the vicinity of 0 Hz; a filter portion for outputting a partial signal, which is gained by sampling a signal component of the frequency band having a bandwidth of the specific partial frequency band with approximately 0 Hz as the center frequency, from the baseband signal of which the frequency band has been shifted by the band shifter; a determining portion for determining the frequency band of the baseband signal on the basis of the partial signal outputted from the filter portion; and a decoding portion for decoding the baseband signal by using the results of determination by the determining portion.