| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio communication apparatus capable of reducing power consumption and making extremely small the possibility of erroneous activation caused by other signals in the same frequency band as compared with a conventional system. <P>SOLUTION: In a responder (radio communication apparatus) 12 for communicating with an interrogator 11 by microwaves, an inherent activation command transmitted from the interrogator 11 is received and the responder 12 is turned on for enabling communication with the interrogator 11, only when the received activation command coincides with a reference command for determination. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
