| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To display a balance of advance payment in an advance payment discount service for an ETC in an ETC on-vehicle apparatus. <P>SOLUTION: The ETC on-vehicle apparatus 2 refers to an ETC toll server 53 via the Internet 52 for a balance of advance payment in the ETC advance payment discount service to specify the balance (step 830), stores the specified balance (step 440), and displays the specified and stored balance on a display device in a car navigation device (step 460). <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
