| 摘要 |
The present invention relates to a data input apparatus which is capable of implementing more key values even in less area and causing a key position to be confirmed easily and thereby recognizing the confirmation of the key position intuitively while minimizing movements of finger when entering the key using the finger, especially thumb. The present invention can implement more key values with less number of switches and reduce movements of fingers during input operations, since the key input switch is shared with each other. Further, the present invention can allow the input position to be confirmed easily because of the step of selecting the unit cell which is a first input step, thereby allowing blind-touch operation.
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