| 摘要 |
<p>PURPOSE:To remarkably shorten measuring time by providing third grit constitution to specify a driving line, specifying the driving line neighboring to a position where a position indicator is positioned, and performing the position deciding operation of only the driving line in the periphery of this driving line. CONSTITUTION:The third grit constitution not shown in figure to specify which driving line 1i generates its working magnetic field by cooperating with the position indicator 6 out of a driving line group 1 to which an alternate current is supplied by a driving line scanner 3 is provided on a reading plane. When the alternate current is supplied to the driving line 1i neighboring to the position indicated by the position indicator 6, a voltage over a prescribed level is induced in the third grit constitution. By detecting the voltage, it is possible to specify the driving line neighboring to the position indicated by the position indicator 6, and to perform fast reading.</p> |
