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Space recognition method and apparatus of input device

  • US 20070299626A1
  • Filed: 06/13/2007
  • Published: 12/27/2007
  • Est. Priority Date: 06/21/2006
  • Status: Abandoned Application
First Claim
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1. A method of recognizing space according to the movement of an input device, the method comprising:

  • measuring angular velocity data using an angular velocity sensor;

    measuring acceleration data using an accelerometer;

    estimating a bias of the angular velocity sensor using the acceleration data;

    calculating Euler angles between a reference navigational frame and a body frame using the angular velocity data and the acceleration data; and

    identifying position information of the input device according to the movement of the input device by using the calculated Euler angles.

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