| 摘要 |
An input device of a portable terminal is provided. The input device includes a keypad unit consisting of a plurality of key buttons, a board consisting of a plurality of pressure sensors and dome switches for generating signals when pressed, an actuator for simultaneously pressing the corresponding dome switch and the corresponding pressure sensor when a key button is pressed, and a controller for performing and finishing a first operation based on the signal generated by the relevant dome switch if generation of the signal generated by the dome switch stops before a valid time has expired, and for performing a second operation based on a pressure change sensed by the relevant pressure sensors simultaneously pressed until the generation of the signal generated by the relevant dome switch remains after the valid time has expired.
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