| 摘要 |
The present invention discloses a keypad for entering alphanumerical data, the keypad comprises at least ten multidirectional keys respectively representing basic digits of decimal numerals, wherein each multidirectional key has at least two orientations of freedom permitting said multidirectional key to be selectively depressed along at least two different directions, one of the directions represents one of the basic digits of decimal numerals and other directions represent various characters, such that the keypad is capable of reducing number of said multidirectional keys in order to enter any digit of alphanumerical data with one action of depressing said multidirectional key to a predetermined direction.
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