| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it easier to find discriminators when the discriminators are either left behind in an automobile or lost near the automobile. SOLUTION: Discriminators 9, 10 are provided with acoustic signal generators 9a, 10a. Each of the signal generators 9a, 10a can generate at least one acoustic signal 11, 12 to warn a user of a predetermined condition of the discriminators 9, 10. When the discriminators 9, 10 are verified by discrimination means, the signal generators 9a, 10a respond to inquiry signals transmitted by the discrimination means 1 and can generate acoustic verification signals.</p> |
