| 摘要 |
<p>PURPOSE:To improve the operability of a pointer by omitting the wire of the pointer. CONSTITUTION:This device is equipped with a tablet 12 in which a magnetic filed generating coil 14 which successively generates the alternating magnetic filed of a prescribed frequency crosses a sensing coil 15 which allows an induced voltage to be induced by crossing this magnetic field, to X and Y-axial directions, a pointer 13 which intensifies a magnetic coupling in a resonated relation with both the magnetic field generating coil and the sensing coil on the tablet 12, and a processing means 25 which searches the peak position of an induced power induced by the sensing coil 15, and searches the coordinate of the pointer 13 from an intersection between the peak position of the induced power and the energized position of the magnetic field generating coil 14.</p> |
