| 摘要 |
<p>In the present invention, when key pressing speed and key release speed for keys are detected on the basis of counter (44) values in which values are built up each time a key is operated via a key switch (SW1, SW2), the number of digits for data having bit units, which is data showing key pressing speed, and number of digits having bit units, which is data showing key release speed, are made the same.</p> |
