Coordinate positioning system and method with in-the-air positioning function
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United States of America Patent
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Apr 17, 2012
Grant Date -
Feb 19, 2009
app pub date -
Aug 14, 2008
filing date -
Aug 14, 2007
priority date (Note) -
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Abstract
A coordinate positioning system with in-the-air positioning function includes an illuminator and an image sensor. The illuminator produces a directional light. The image sensor receives the directional light produced by the illuminator and produces an image corresponding to the directional light to accordingly analyze the image and obtain a rotating angle corresponding to the directional light.
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