Key inputting device and character inputting method utilizing direction key

An input device and character input technology, applied in the field of key structure, can solve the problems of time delay, user inconvenience, etc.
CN1344092AInactive Publication Date: 2002-04-10SAMSUNG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SAMSUNG ELECTRONICS CO LTD
Publication Date
2002-04-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

A key input device is provided for inputting digits / letters / characters / symbols by a keypad. In the key input device, a mode key is pressed to select one of a plurality of key matrixes for a corresponding mode, which is displayed on a display. A first directional key is used for inter-cell movement in the displayed key matrix and a second directional key is used to select an intended digit / letter / character / symbol within a cell. In the character input methodfor the device, a mode with a unique key matrix is set by pressing a mode key. An intended cell is moved to within the key matrix by pressing a first directional key. An intended digit / letter / character / symbol is selected in the cell by pressing a second directional key, and then is displayed.
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Description

technical field

[0001] The present invention generally relates to a key structure, a key input device and a character input method in a device for inputting numbers and characters using a small keyboard, and particularly relates to a method of using a few keys to press the known 3*4 key input scheme to represent possible method for all characters used. Background technique

[0002] Many key input devices and character input methods have been developed in the field of mobile wireless terminal devices in order to easily represent desired characters while minimizing the area of ​​the key input devices as the terminal size tends to shrink. These key input devices include a well-known 3*4 key input scheme, a two-way (-way) slide key input scheme, and a four-way key input scheme. The latter two input schemes are suggested as equivalent substitutes for the 3*4 key input scheme.

[0003] Due to the minimal space requirement of the keypad, the 3x4 key input schem...

Claims

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