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Method and device for sensing rotation of wheel in portable terminal

  • US 9,110,520 B2
  • Filed: 06/28/2007
  • Issued: 08/18/2015
  • Est. Priority Date: 11/23/2006
  • Status: Expired due to Fees
First Claim
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1. A method of sensing a rotation of a wheel in a portable terminal, the method comprising:

  • storing at least one mapping table which correlates interrupt values and the status values of a plurality of sensors to the rotation of the wheel;

    producing at least one interrupt through any one of the plurality of sensors provided in the wheel according to the rotation of the wheel;

    confirming an interrupt value of the produced interrupt and a status value of a sensor which does not produce the interrupt among the plurality of sensors; and

    determining that the wheel is rotated in a direction corresponding to the interrupt value and the status value with reference to the at least one mapping table.

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