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Touch Type Operation Input Device

  • US 20140292699A1
  • Filed: 06/13/2014
  • Published: 10/02/2014
  • Est. Priority Date: 12/16/2011
  • Status: Active Grant
First Claim
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1. A touch type operation input device comprising:

  • a piezoelectric sensor configured to generate an output voltage in accordance with a pressing force;

    a touch sensor configured to detect an operation input; and

    a pressing force detection unit configured to detect pressing force on the basis of the output voltage of the piezoelectric sensor,when the pressing force detection unit obtains a detection result indicating that the operation input on the basis of an output signal from the touch sensor is above a predetermined value, the pressing force detection unit fixes a reference voltage, and detects the pressing force from a difference between the output voltage and the reference voltage.

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