CREATION METHOD FOR CHARACTERS/WORDS AND THE INFORMATION AND COMMUNICATION SERVICE METHOD THEREBY

摘要

This invention rotates to a method for entering characters into a small keypad with a limited number of keys or information appliances with a liquid crystal panel such as PDA. The object of the present invention is to provide a character entry method to ensure the efficiency of letter entry, the expandability and adaptability of information services, and the information and communication service method thereby, which substantially obviates problems due to limitations and disadvantages of the multi-tap and single-tap method. The distinctive features of the present invention are representative character keys, a virtual keypad, and virtual key entry method on the virtual keypad mode, in entering multiple characters by means of a keypad with about 12 keys. Moreover, the present invention provides a character entry method ensuring the input efficiency of various characters. The present invention can be utilized as an interface in the mobile info-communication services.

主权项

1. A character input system comprising:
a software keypad including a plurality of multi-tap character keys: a touch screen configured to display information and the software keypad; a memory unit configured to store a plurality of characters and representative characters, the representative characters being characters representing a group of characters among the plurality of characters; and a control unit configured to:
operate a real keypad input mode for inputting a key on the software keypad;receive a user selection of the key from the plurality of multi-tap character keys on the software keypad in the real keypad input mode;in response to the user selection of the key, on which one of the representative characters is marked, change the real keypad input mode into a virtual keypad input mode and display, on the touch screen, the one of the representative characters and a group of characters represented by the one of the representative characters;receive a user selection of an input character from the group of characters represented by the one of the representative characters by using the plurality of multi-tap character keys on the software keypad, in the virtual keypad input mode; andgenerate the selected input character on the touch screen.