Abstract: An operating method and apparatus are applied to a portable electronic device for performing plural touch operating modes and a press operating mode. In this method, the portable electronic device is first to determine whether the touch keypad is touched or not. Then, it is determined whether the metal dome is pressed or not. If the resilient metal dome under the touch keypad is pressed, the press operating mode is entered. Otherwise, one of the plural touch operating modes is entered and a touch locus of user touching is detected.

Abstract: The present invention is to provide an input method and arrangement for a portable electronic device installed with a software for showing a virtual disk on a screen on a phone body of the portable electronic device, wherein the virtual disk includes a plurality of fixed marks along its periphery and each of the fixed marks represents a numeral, a character, or a letter. Thus, while inputting a movement signal by manipulating a control button on the phone body will move a moving mark on the periphery of the virtual disk from the fixed mark labeled as an origin to a location desired by a user along the fixed marks. Furthermore, a corresponding one of the fixed marks is activated to generate a corresponding numeral, character, or letter. Then the moving mark returns to the fixed mark labeled as an origin after traversing the periphery of the virtual disk.

Abstract: A handwriting input system includes an input module for receiving a plurality of handwriting operations, a control module for displaying at least one handwritten character via an optional interface, wherein the handwritten character is generated according to a respective one of the handwriting operations and a comparing module for recognizing the handwritten character in order to generate a corresponding command.