| 摘要 |
A sensor coil pattern used in combination with a coordinate input apparatus is provided, that is adapted to accurately detect positions if a noise source, such as a converter or an electrically closed conductor, exists at the periphery of the apparatus. The apparatus is provided with a sensor surface having a sensor coil pattern of many sensor coils arranged thereon in parallel with each other in position detecting directions, a position indicator, a coil or a resonance circuit incorporated therein and a switching means so connected as to select simultaneously one of a plurality of a sensor coil. The many sensor coils include a predetermined number of sensor coils individually connected to the switching means and said predetermined number of sensor coils includes at least one or a plurality of sensor coils counted from one end of the arrangement. <IMAGE> |
