发明授权
US5142254A Ultrasonic delay line device with an adjusting circuit for adjusting
delay time, a comb-shaped filter using the ultrasonic delay line device
and a method of adjusting delay time
失效
具有用于调整延迟时间的调整电路的超声波延迟线装置，使用超声波延迟线装置的梳状滤波器和调整延迟时间的方法
- 专利标题： Ultrasonic delay line device with an adjusting circuit for adjusting delay time, a comb-shaped filter using the ultrasonic delay line device and a method of adjusting delay time
- 专利标题（中）： 具有用于调整延迟时间的调整电路的超声波延迟线装置，使用超声波延迟线装置的梳状滤波器和调整延迟时间的方法
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申请号： US575570申请日： 1990-08-31
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公开(公告)号： US5142254A公开(公告)日： 1992-08-25
- 发明人: Etsuji Kimura , Naomitsu Umemura , Masahiko Maeda
- 申请人： Etsuji Kimura , Naomitsu Umemura , Masahiko Maeda
- 申请人地址： JPX Tokyo
- 专利权人： Asahi Glass Company Ltd.
- 当前专利权人： Asahi Glass Company Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX1-104870 19890908
- 主分类号： H03H9/30
- IPC分类号： H03H9/30 ; H03H9/36 ; H03H9/38
摘要：
An ultrasonic delay line device has an adjusting circuit for adjusting delay time provided between two terminals at the power input side of an ultrasonic delay line, wherein the adjusting circuit includes a serial connection of a fixed capacitor and a variable resistor connected between said two terminals of the power input side and a fixed coil connected in parallel with the serial connection of the fixed capacitor and the variable resistor.
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