| 发明名称 |
Transmission system of aerial ultrasonic pulse and ultrasonic transmitter and receiver used in the system |
| 摘要 |
The disclosure relates to a system for aerially transmitting an ultrasonic view of a vibration mode, small in angle of direction, in a clear state and to a transmitter and a receiver used in the system. According to the system, an ultrasonic pulse can be used for distance measurement, control and other signal means even at relatively short distance.
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| 申请公布号 |
US4326274(A) |
申请公布日期 |
1982.04.20 |
| 申请号 |
US19800165385 |
申请日期 |
1980.07.03 |
| 申请人 |
KABUSHIKI KAISHA MORITA SEISAKUSHO |
发明人 |
HOTTA, MITSUHIKO;FURUICHI, SHUHEI;SHIGIHARA, TAKANORI |
| 分类号 |
H04R1/00;B06B1/06;G10K11/00;H04B11/00;H04R1/20;H04R17/00;(IPC1-7):H04R17/00 |
主分类号 |
H04R1/00 |
| 代理机构 |
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