| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To normally access an ETC card prior to communicating with a roadside machine after the ETC card has been inserted. <P>SOLUTION: A CPU 10 detects the insertion of the ETC card 30 according to a signal from a card detection switch 13b, and at least prior to communicating with the roadside machine after the ETC card 30 has been inserted (S100), the CPU checks access to the card repeatedly at predetermined intervals (S102, S104, S106); when the access to the ETC card 30 is determined to be abnormal, the user is warned that the access to the ETC card 30 is abnormal (S110). <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
