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ELECTRONIC DEVICE FOR RECOGNIZING ASYNCHRONOUS DIGITAL PEN AND RECOGNIZING METHOD THEREOF

  • US 20140191967A1
  • Filed: 12/04/2013
  • Published: 07/10/2014
  • Est. Priority Date: 01/04/2013
  • Status: Active Grant
First Claim
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1. An electronic device comprising a digital pen, the electronic device comprising:

  • at least three reception sensors installed in the electronic device at positions that are separated from one another, the at least three reception sensors configured to receive a waveform generated by a waveform generator of the digital pen; and

    a processor configured to calculate an input coordinate of the digital pen using a difference of velocities and reception times of the waveform received by the at least three reception sensors.

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