Patent ID: 7280525

Claim:
A wireless communication device for performing wireless communication through set operational frequency bands, the wireless communication device comprising: a storage section for storing the set frequency bands, variable values for the respective frequency bands, and a first frequency band used for a normal service operation; a power supply section for supplying a power for performing the normal service operation in accordance with an input command; a comparison section for determining whether a received frequency is synchronized with spaced frequencies set in the first frequency band, if the power is supplied; and a control section for, as a result of such determining in the comparison section, if it is determined that the received frequency is not synchronized with any of the spaced frequencies, comparing whether the received frequency is synchronized with spaced frequencies set in second frequency bands other than the first frequency band used for the normal service operation among the received frequency and the frequency bands stored in the storage section, and if the synchronized frequency is included in the second frequency band, selecting an operational frequency band as the second frequency band.