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INFORMATION INPUTTING DEVICE AND INFORMATION INPUTTING METHOD

  • US 20120206417A1
  • Filed: 11/28/2011
  • Published: 08/16/2012
  • Est. Priority Date: 02/15/2011
  • Status: Abandoned Application
First Claim
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1. An information inputting device comprising:

  • an ultrasonic wave reception unit which receives an ultrasonic wave signal generated by an electronic pen;

    a reference signal reception unit which receives a reference signal generated by the electronic pen;

    a position measurement unit which measures a position of the electronic pen by using a time difference between a reception time of the reference signal received by the reference signal reception unit and a reception time of the ultrasonic wave signal received by the ultrasonic wave reception unit and inputs second position information indicating the position of the electronic pen; and

    an input means selection unit which outputs first position information input from a touch panel, which senses user'"'"'s contact and outputs the first position information, or the second position information according to user'"'"'s intention of use.

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