Touch sensor
    1.
    发明授权
    Touch sensor 失效
    触摸传感器

    公开(公告)号:US5465091A

    公开(公告)日:1995-11-07

    申请号:US197533

    申请日:1994-02-16

    IPC分类号: H03K17/96 H03K17/975

    CPC分类号: H03K17/962

    摘要: A touch sensor has an LC oscillator circuit 1, 2, 3, and 4, a rectification circuit 10 which rectifies outputs of the oscillator circuit 1, 2, 3, and 4, a voltage detection circuit 12, 13, 14, and 15 which detects the rectified voltage, and a sensor plate 8 connected to the input section of the rectification circuit, and detecting contact of a finger with the sensor plate 8 by enabling the voltage detection circuit 12, 13, 14, and 15 to detects a drop of equivalent impedance due to a finger touching the sensor plate 8 as a change of voltage.

    摘要翻译: 触摸传感器具有LC振荡电路1,2,3和4,整流电路10,其对振荡电路1,2,3和4的输出进行整流,电压检测电路12,13,14和15,其中 检测整流电压,以及连接到整流电路的输入部分的传感器板8,并且通过使电压检测电路12,13,14和15能够检测到手指与传感器板8的接触, 由于手指接触传感器板8而产生的等效阻抗作为电压的变化。