Input device for portable terminal and method thereof

An input device of a portable terminal, the device comprising:

• an input unit comprising at least one of:
• a touch unit to set a reference point corresponding to a touch detected on a touch screen;
• a pressure sensor to detect a pressure applied to the portable terminal;
• and
• a key pad to generate a key input event according to a key input;
• a sensor detection unit to detect a sensor signal generated by at least one of tilting, shaking, and grabbing of the portable terminal;
• a motion recognition unit to receive a motion signal generated in the portable terminal according to the sensor signal;
• a function controller to execute a first application program according to a user function corresponding to at least one of the detected touch, the detected pressure, the key input event, and the motion signal;
• and
• a storage unit to store the first application program.