| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem of a conventional ultrasonic sensor device in which signal lines several times the number of sensors are needed, and the system thereof is complicated with this, causing high cost, whereas a vehicle ultrasonic signal processor for detecting an obstacle such as human or a wall near an own vehicle and for reporting information therefor to a driver, is extensively known as such device. SOLUTION: Received waveforms from a plurality of sensors are processed by a single signal line. Hence, the number of signal lines is largely reduced. Since the system is simplified, the cost is suppressed low. COPYRIGHT: (C)2009,JPO&INPIT
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