| 摘要 |
<p>PURPOSE:To allow the input and the display to coincide by constituting the title device so that a parallax correction can be executed by providing a parallax correction quantity setting means. CONSTITUTION:A control circuit 1 constituted of a microprocessor executes a control of the whole device in accordance with a program of a program memory 2. To said circuit, a conductive transparent input tablet 4, an indicator 9, a correction data memory 10 and parallax correction quantity setting means 11, 13 in the X and Y axis directions are connected. First of all, when plotting is executed with an input pen 6 on the input tablet 4, the control circuit 1 which has inputted its position coordinate data (X, Y) as a digital signal of an A/D converter 7 reads out a correction data which has been stored in advance in the correction data memory 10, derives display coordinate data which has eliminated a linear distortion, output it to a display control circuit 8 and executes a display on an indicator 9. In this state, in case a parallax has been generate, said setting means 11, 13 are adjusted in a state that the input pen 6 has been placed at one point on the tablet 4, and a visual field correction is executed.</p> |
