| 摘要 |
<p>PURPOSE:To prevent the repeated depression of the same key in an operator's no input state and to reduce power consumption by sending specific information such as keyboard ID data when the ON state of a certain key is continued for a fixed time or more. CONSTITUTION:Key scanning is executed, key data are transferred to a current key data area KONT 1 and whether data coincident with the data of a preceding key data area KONT 2 exist or not is checked. Out of inconsistent data, ON data at the current time are turned on by a key data buffer KDTB and ON data at the preceding time are turned off by the buffer KDTB. Out of coincident data, the keyboard ID of ON data is transferred to the buffer KDTB. Consequently the repeated depression of the same key in the operator's no input state can be prevented and power consumption can be reduced.</p> |
