| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a security device capable of blocking a dishonest act against an on-vehicle communication system through a connector for connection of an out-vehicle device. <P>SOLUTION: A security device 5, capable of achieving a security function that prevents any other frame than a permit frame from being presented to a main bus 3a from a tool bus 3b through a connector 4, comprises: a switch 51 that conducts and blocks the main bus 3a and the tool bus 3b; and a control circuit 52 that detects an ID of data on the tool bus 3b and controls an on-off state of the switch according to the detection result. <P>COPYRIGHT: (C)2013,JPO&INPIT |
