| 摘要 |
<P>PROBLEM TO BE SOLVED: To eliminate the need for entering a password when an authorized owner intentionally attaches a navigation device to another vehicle, and to prompt a robber to enter a password when attaching the navigation device to another vehicle. <P>SOLUTION: In the electronic device connected to an abnormality detector, when after the abnormality detector detects abnormality, the electronic device detects that the electronic device is attached to another vehicle or the like, password entry is prompted to identify the authorized owner, the use of the electronic device is restricted in the case of an unauthorized owner, a theft prevention system, an electronic device and a theft prevention method restricts the use of the electronic device. <P>COPYRIGHT: (C)2013,JPO&INPIT |
