| 摘要 |
<p>PURPOSE:To reduce the coordinate input error by validating the input of a pointed position on a tablet when the pressing force of an input pointer is right at the time of operation of the input pointer. CONSTITUTION:When an input pen 6 is pressed to a tablet 5, a voltage corresponding to the pressing force is generated in piezoelectric transducers 31A and 31B, and this voltage is amplified by a preamplifier 32 and is outputted as a pressing signal to an operation control part 1. The operation control part 1 compares the inputted pressing signal with a known value preliminarily stored in an incorporated RAM or the like to detect the pressing force. Based on this detection result, the coordinate position pointed by the input pointer 6 is detected when the pressing force is right. Thus, the coordinate input error is reduced.</p> |
