Capacitive sensor , sensing device , sensing system and electronic equipment

Capacitive sensor , sensing device , sensing system and electronic equipment

CN
  • CN 205,028,266 U
  • Filed: 09/23/2015
  • Issued: 02/10/2016
  • Est. Priority Date: 09/23/2015
  • Status: Active Grant
First Claim
Patent Images

1. a capacitance type sensor, comprising:

  • Multiple sensing unit, arrange in array, each sensing unit comprises;

    Sensing electrode, can be coupled to target object in a capacitive manner, and sensing electrode is for loading reference signal;

    WithSensing circuit, comprises differential pair tube, and described differential pair tube is for responding because of the close of target object or the change touching caused reference signal on sensing electrode, and the second AC signal that corresponding generation two is different.

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