| http://www.w3.org/ns/prov#value | - In a case in which a pointing instrument such as a finger or a pen is inserted to the coordinate input/detection area blocks the laser beam in the area, the optical coordinate input/detection device obtains a pulse number of a pulse motor rotating the polygonal mirror, based on light-intensity distribution at a light-receiving device provided in each of the optical units, calculates an emission an
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