| 摘要 |
<p>PURPOSE:To simplify structure and to improve operability by detecting a signal transmitted from a signal generator, which is close or abutted to the desired position of a tablet, by a signal excited induced to an electrode line, which is arranged in the uniaxial direction of the tablet, and specifying the correspondent position of the signal generator on the tablet. CONSTITUTION:A signal generator 1, tablet 2 and means 10 to input the abutting position information of the signal generator 1 to the tablet are provided. Then, by calculating voltages outputted from an electrode line switcher 11 connected to the end part of each line on one side of an electrode line 8 in the tablet 2, first amplifier connected to the output side of the electrode line switcher 11 and second amplifier 13 to which the other end part of the electrode line 8 is totally connected, the position for the signal generator 1 to be abutted to the tablet 2 is determined. Thus, cost for arranging the electrode line 8 is reduced and the operability is improved.</p> |
