MOTION RECOGNITION METHOD
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United States of America Patent
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app pub date -
Nov 29, 2013
filing date -
Jan 30, 2013
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Abstract
A motion recognition method includes: a light detecting step of detecting light reflected by the reflective body to measure a luminous intensity of the light by the light receiving element; a first coordinate setting step of setting a planar coordinate (X1, Y1) of the reflective body; a second coordinate setting step of setting a planar coordinate (X2, Y2) of the reflective body; and a direction determining step of obtaining an angle (θ) between a line segment connecting the origin and the planar coordinate (X1, Y1) in the first position and a line segment connecting the planar coordinate (X1, Y1) in the first position and the planar coordinate (X2, Y2) in the second position and determining that the reflective body moves in a direction passing through a ½ point of the angle (θ) in the first position by the data processing unit.
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