Coordinate detecting method

Details Coordinate detecting method Coordinate detecting method

G - Physics

08

C

340/135.1

G08C 21/00 (2006.01) G06F 3/033 (2006.01)

Patent

CA 1276258

ABSTRACT OF THE DISCLOSURE A coordinate detecting method, adapted to a coordinate input device comprising an input plane having a plurality of parallel embedded loops, establishes a plurality of coarse regions while taking as a reference the polarity reversing positions of a magnetic field detected when these loops are scanned in sequence. The method comprises the steps of specifying one coarse region to be interpolated, interpolating the designation position of a coordinate designating member within the specified coarse region, and calculating the coordinate of the designation position on the basis of the coordi- nate position of the specified coarse region and an interpolation value obtained in the interpolating step.

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