| 摘要 |
<p>PURPOSE:To uniformize an attenuation factor and to improve coordinate detection accuracy by forming at least one of the two poles feeders in a loop shape or forming one of them to the loop-shaped feeder and the other to the Y-shaped feeder. CONSTITUTION:As the two feeders for detecting a coordinate on a position detecting plane designated by an operator by using a position indicator, both of Y-shaped and loop-shaped feeders are used. Namely, this device uses both of a Y-shaped feeder 31 as the feeder of the low attenuation factor for a position detecting member close to a point A and uses a loop-shaped feeder 41 as the feeder of the low attenuation factor for a position detecting member away from the point A. When one of two feeders is loop-shaped at least, the attenuation factor of the feeder for the position detecting member at a position away from a junction is lowered. When one of the feeders is loop-shaped and the other is Y-shaped, as a result, the attenuation factor of all the detecting members is uniformized.</p> |
