| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a keyless entry device capable of preventing a conflict between responses from a plurality of portable machines which is caused on a vehicle side in a specific situation, and securing normal operation. <P>SOLUTION: A "Sync+Wakeup ID" is transmitted first from a first vehicle (time t1 to t2). A first portable machine paired with the first vehicle does not respond thereto, but if another second portable machine has an identical inversion code by chance, a "Welcome" response is transmitted (times t2 to t5). A "Who" command composed of a regular "Sync+Wakeup ID" and a "command plus additional data" is transmitted during the responce, so that the first portable machine can respond to "Who" normally (time t6). <P>COPYRIGHT: (C)2013,JPO&INPIT |
