| 摘要 |
A three-dimensional coordinate input device includes an operation portion, a ferrite magnet provided within the operation portion, two pairs of Hall-effect elements provided on a substrate. One pair of the Hall-effect elements is used for detecting an X coordinate and the other pair of the Hall-effect elements is used for detecting a Y coordinate. When inclined and vertically moved by hand, the operation portion can be displaced in three-dimension. When the operation portion is inclined in any direction, an XY coordinate value can be obtained based on its inclination and inputted into a computer to be displayed on a coordinate space. By using a mean of output voltages of the Hall-effect elements, a Z coordinate value can be obtained and displayed on the coordinate space.
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