Space recognition method and apparatus of input device
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United States of America Patent
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Issued Date -
Dec 27, 2007
app pub date -
Jun 13, 2007
filing date -
Jun 21, 2006
priority date (Note) -
Abandoned
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Abstract
Provided are method and apparatus for recognizing space according to the movement of an input device. 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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