| 摘要 |
<p>PURPOSE:To hold easily and without fail an original and to make a device thin and low-cost by arranging an electrode group to give a static attraction force and a magnetizing line group to read the coordinates by a magnetostriction system in a single body. CONSTITUTION:When an original paper 4 is mounted on the upper surface of the reading device and a direct current voltage is impressed by an electric power source 1, at respective parts of the original 4 facing a conductive line F through a dielectric layer A, the charge of the polarity different from the charge of the respective conductive lines occurs. As the result, the original 4 is attracted, fixed and held to the upper surface of the reading device by a static action. In such a condition, a pen 6, in which the voltage is impressed from a high frequency electric power source 5, draws a picture 7 on the original, out of a magnetizing line D arranged to a film B, the maximum electric current is detected through a corresponding line Yn by a detecting device 2. Thus, the value of Y coordinates can be known, in the same manner, the value of X coordinates can be known from the magnetizing line E arranged to a film C, and respective positions of the picture are detected from the both values. Such a value is inputted to the computer.</p> |
