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Mobile device, step counting method, and gravity direction detecting method

  • US 8,561,457 B2
  • Filed: 07/31/2012
  • Issued: 10/22/2013
  • Est. Priority Date: 07/29/2008
  • Status: Active Grant
First Claim
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1. A mobile device comprising:

  • an acceleration detecting portion to detect an acceleration;

    a gravity direction detecting portion to detect a gravity direction on the basis of said detected acceleration;

    a gravity direction acceleration calculating portion to calculate an acceleration in said detected gravity direction on the basis of said detected accelerations;

    a step counting portion to count a number of steps on the basis of said calculated gravity direction acceleration; and

    a vibration generating portion to generate vibration, whereinsaid step counting portion, while said vibration generating portion generates vibration, does not count the number of steps on the basis of said calculated gravity direction acceleration in a case where a predetermined condition is met.

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