| 摘要 |
A terminal and a ranging method therefor. The terminal comprises an electro-acoustic transducer (1), and the electro-acoustic transducer (1) has a vibrating portion (11), an ultrasonic receiving portion (13), a driving portion (12), and a control portion (14). The control portion (14) receives a ranging instruction, controls the driving portion (12) to drive the vibrating portion (11) to output an ultrasonic signal, receives an ultrasonic signal that is output by the ultrasonic receiving portion (13) and returned after colliding with a target, and calculates a distance between the terminal and the target. |
