| 摘要 |
<p>PURPOSE:To input the position data of two points by one coordinate indicator. CONSTITUTION:The coordinate indicator 8 to be used on a coordinate detecting part on which plural loop coils are arrayed is provided with an absolute coordinate indicator 8A and a relative coordinate indicator 8B connected to the indicator 8A through a mechanical connection means 9 so that a distance L between both the indicators 8A, 8B can be changed and the indicator 8A includes coils and a capacitor and is provided with a tuning circuit for transmitting/receiving radio waves to/from loop coils arranged on the coordinate detecting part and a control means for controlling a transmitting signal from the tuning circuit to the loop coils in accordance with the distance L between both the indicators 8A, 8B.</p> |
