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Method and apparatus for tracking input positions via electric field communication

  • US 10,430,011 B2
  • Filed: 03/19/2018
  • Issued: 10/01/2019
  • Est. Priority Date: 05/19/2009
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • a display;

    an electrode configured to measure a strength of an input electric field radiated from an object; and

    a controller configured to detect an input position of the object on the display based on the strength of the input electric field,wherein the input electric field is generated by a voltage supplied by an electric field communication (EFC) transmitter which is connected to the object.

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