| 摘要 |
<p>PURPOSE:To constitute the title device so that a homogeneous vibration detecting signal can be obtained with regard to all vibration sensors and a coordinate can be detected with high accuracy by setting a mechanical resonance frequency of the vibration sensor higher than vibration frequency detected by the vibration sensor. CONSTITUTION:An input tablet consisting of a vibration transfer plate 8 is allowed to execute a coordinate input by a vibrating pen 3, and in accordance with inputted coordinate information, an input image is displayed on an indicator 11' consisting of a CRT which is superposed and placed on the input tablet. In such a case, a resonance frequency of a vibration sensor 6 is set higher than a vibration frequency inputted to the vibration transfer plate 8. In such a way, as for a vibration frequency band used actually for a coordinate operation, a vibration detection characteristic of the vibration sensor 6 can be broadened, and by eliminating an influence of the resonance frequency of the vibration sensor 6 by a simple and inexpensive means, an exact coordinate operation can be executed.</p> |
