Patent ID: 8320270

Claim:
A wireless apparatus comprising: a mode selector operative to select a communication mode for performing communication with a wireless apparatus to be communicated or a calibration mode for a calibration process; a weight vector acquirer operative to acquire a weight vector by executing a first algorithm, which is for a null steering directivity control, on a plurality of reception signals when the calibration mode is being selected by the mode selector and to acquire a weight vector by executing a second algorithm different from the first algorithm when the communication mode is being selected by the mode selector, wherein the plurality of reception signals are generated by a single signal source; an outputter operative to output a plurality of transmission signals weighted by the weight vector acquired by the weight vector acquirer; and a correction value acquirer operative to acquire a correction value for readjusting the result of the null steering directivity control after the transmission signals are output by the outputter when the calibration mode is being selected by the mode selector, wherein the outputter outputs a plurality of transmission signals after correcting the transmission signals by using the correction value acquired by the correction value acquirer when the communication mode is being selected by the mode selector.