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METHOD FOR DETECTING TOUCH INPUT AND TOUCH INPUT DEVICE THEREFOR

  • US 20180329475A1
  • Filed: 05/10/2018
  • Published: 11/15/2018
  • Est. Priority Date: 05/11/2017
  • Status: Active Grant
First Claim
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1. A method for detecting a touch input at a touch input device, the method comprising:

  • after a wake-up of the touch input device, scanning at least one function touch button of the touch input device and at least one comparison touch button of the touch input device;

    detecting a change in capacitance generated by the at least one function touch button and a change in capacitance generated by the at least one comparison touch button as a result of the scanning of the at least one function touch button and the at least one comparison touch button;

    determining whether an expected touch input corresponds to an intention of a user or to a first environmental change causing the change in capacitance generated by the at least one function touch button;

    comparing the change in capacitance generated by the at least one function touch button with the change in capacitance generated by the at least one comparison touch button; and

    determining whether the expected touch input is a determined touch input corresponding to the intention of the user or a touch input corresponding to a second environmental change based on the comparison of the change in capacitance generated by the at least one function touch button with the change in capacitance generated by the at least one comparison touch button.

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