| 摘要 |
<p>PROBLEM TO BE SOLVED: To make the processor thin and lightweight and to efficiently input characters, etc., by detecting pressure applied to positions corresponding to respective keys of a virtual keyboard displayed on a display screen, and performing input processing for a character string, etc., according to the pressure signals of the detected keys. SOLUTION: A transparent plate type tablet device 240 having lattice-shaped grids arranged detects pressure applied to all the grating points at the same time and inputs pressure data on all pressure sensing points to an applied pressure distribution processing module 241 at constant time intervals. The pressure distribution processing module 241 detects information regarding whether respective keys including modification keys are pressed at constant time intervals, detects whether or not each key is pressed newly or continuously according to whether its data rise or fall, and sends the result to a central processor 231 and also informs the central processor 231 of information showing whether or not the position or kind of the display keyboard, etc., is updated.</p> |
