| 摘要 |
The present invention provides a user interface device, method and the portable terminal thereof, comprising: a sensing surface, formed by at least one sensing unit; a sensing keypad, formed by at least one sensing key from placing parts on the said sensing surface; a sensing circuit connected to the said sensing surface; the said sensing circuit generates position signal of a sensing object when the sensing object is in effective sensing range of the said sensing surface; the said sensing circuit also reports ON/OFF status signal of the said sensing key. The important benefits of the present invention are: it provides this new handwriting text input function while keeping the original physical size of the mobile handset and original functionality of the digit keypad of the mobile handset intact.
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