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.

Inactive Publication Date: 2002-04-10
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Notwithstanding this advantage, their key entry mechanism makes the user inconvenient, and there is a time delay in the key entry

Method used

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  • Key inputting device and character inputting method utilizing direction key
  • Key inputting device and character inputting method utilizing direction key
  • Key inputting device and character inputting method utilizing direction key

Examples

Experimental program
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Embodiment Construction

[0047] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

[0048] The "key array" used herein refers to a preset configuration of several keys to represent characters in a corresponding language mode according to the 4-direction (4-D) key structure of the present invention in the mobile wireless terminal. It should also be noted that a block of characters in a key array is called a cell. All characters usable in the 3x4 key entry scheme are represented by using two 4-D keys in the key array displayed on the display.

[0049] A key input device and a character input method are respectively described in two embodiments in FIGS. 1 to 6 and FIGS. 7 to 17B by using 4-D keys. Embodiments of a key input device and a character input method will first be described...

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PUM

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/023
CPCG06F3/0236
Inventor 金宰旭
Owner SAMSUNG ELECTRONICS CO LTD
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