发明授权
- 专利标题： Ultrasonic wave watching device of moving object detecting type
- 专利标题（中）： 超声波检测装置的移动物体检测类型
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申请号： US719159申请日： 1976-08-31
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公开(公告)号： US4114146A公开(公告)日： 1978-09-12
- 发明人: Hiromitsu Inoue , Hiroshi Ohashi , Susumu Katayama
- 申请人： Hiromitsu Inoue , Hiroshi Ohashi , Susumu Katayama
- 申请人地址： JP Osaka
- 专利权人： Matsushita Electric Works, Ltd.
- 当前专利权人： Matsushita Electric Works, Ltd.
- 当前专利权人地址： JP Osaka
- 优先权： JP50/111114 19750913; JP50/111115 19750913; JP50/149815 19751215; JP51/21467 19760228
- 主分类号： G01S15/52
- IPC分类号： G01S15/52 ; G08B13/16 ; G08B13/24
摘要：
This invention provides an ultrasonic wave watching device for detecting a moving object wherein an ultrasonic wave signal generated by an oscillator is transmitted from a transmitter, reflected signals from a stationary object and moving object are received by a receiver and the variation with time of the phase difference between these received signals and the transmitted signal is detected to determine the presence and moving direction of the moving object.
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