| 摘要 |
<p>PURPOSE:To simplify operations and to reduce the coordinate input time, by providing plural switches, which are turned on in accordance with the depression depth, in the upper part of a control level for coordinate input of a CRT to input coordinates and designate the coordinate input. CONSTITUTION:In case that cursors form a cross, cursors 11 and 12 are displayed when a switch 22 in the upper end of a controller 2 is depressed. The intersecting point between cursors 11 and 12 is moved optionally by the operation of a lever 21 to determine coordinates. When the switch 22 is depressed more deeply, the coordinate input designation is transmitted to a terminal machine 1. A permanent magnet 23 is fixed at the inside of the operating part 22, and switches 24 and 25 of Hall elements are provided longitudinally at the inside of the level 21. Signal lines 27 and 28 are connected to switches 24 and 25. When swiches 24 and 25 are turned on by the depression of the permanent magnet, cursors are displayed and the input is designated.</p> |
