| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wireless communication authenticity determination system which makes it difficult for unauthorized wireless communication to be formed with the use of a repeater. <P>SOLUTION: When a smart communication is performed, a vehicle 1 transmits LF radio waves 24a and 24b with distinct transmission strengths. For each of the LF radio waves 24a and 24b, an RSSIs is calculated when an electronic key 2 receives these LF radio waves. If the values of these RSSIs are in accordance with the transmission strengths, the smart communication is processed as a authentic communication. If the values of these RSSIs are inconsistent with the transmission strengths, the smart communication is processed as an unauthorized communication through the use of a repeater. <P>COPYRIGHT: (C)2012,JPO&INPIT |
