| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a device capable of eliminating unnecessary signals such as signals of other channels at the time of DSRC (Dedicated Short Range Communication) communications, in order to improve the reliability of a received data. <P>SOLUTION: A control microcomputer 1 changes a receiving minimum threshold level of a detecting circuit 13 for every channel. A received signal above the receiving minimum threshold level is received in a predetermined setting channel, and then roadside-vehicle communication processing is performed under the condition that FCMC is a normal data. Moreover, among channels which fulfil a condition of over a first receiving minimum threshold level, roadside-vehicle communication processing is performed for a channel which fulfills a condition of over a second receiving minimum threshold level that exceeds the first threshold level (S1-S13). <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
