SIGNAL PROCESSOR, SIGNAL PROCESSING SYSTEM, CELLULAR PHONE AND SIGNAL PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a signal processor inhibiting one signal from receiving an adverse effect of the other signal in the signal processor having the combined use of two or more different radio signals and decreasing no reception sensitivity in the signal processor.

SOLUTION: The signal processor comprises: an antenna 103 receiving the externally transmitted radio signal; a check sum decision unit 217 deciding the signal quality of the received radio signal; and a notch filter 201 removing a frequency component agreeing with that of the radio signal transferred in the signal processor from the transmitted radio signal when the check sum decision unit 217 decides that the quality of the radio signal falls to a specified level or below.

COPYRIGHT: (C)2006,JPO&NCIPI