Device for inputting English characters for a mobile communication terminal, and method for same

Abstract

The present invention relates to a device for inputting English characters for a mobile communication terminal, comprising: a keypad input unit having a plurality of keys for inputting English characters; a display unit which outputs English characters in accordance with the input operation of the keypad input unit; an English character completion unit which reads English characters corresponding to the input from the keypad input unit from a database with pre-stored English characters, and provides the read English characters to the display unit; and a control unit connected to each unit to control the units. The keypad input unit has numeric keys with numerals '0' to '9' and function keys with '*' and '#' arranged into a 34 matrix.; The numeric keys with numerals '1' to '9' serve as a plurality of English character buttons for inputting English characters, and the numeric key with numeral '0' serves as a space button for spacing among characters. Either the '*' key or the '#' key of the function keys serves as a last button for the continuous input of English characters and a special character button for inputting special characters. The other of the function keys, which does not serve as the last button and the special character input button, serves as a shift button for performing a character input mode setting and word-converting function for setting a character input mode for inputting the upper / lower case of the English characters and converting the inputted words into upper / lower case, and performing a character-converting function for converting inputted English characters into upper / lower case one by one.

Description

technical field [0001] The present invention relates to a mobile communication terminal letter input device and its input method, in particular to a mobile communication terminal letter input device and its input method, which can arrange letters according to the use frequency of letters and the interrelationship of continuous input, and can be more Input letters quickly, and when trying to input letters to mobile communication terminals such as mobile phones, PDAs, etc., by smoothly and quickly inputting letters assigned to the same keys, and by conveniently placing words / characters in their capital letters and Switching between lowercase letters makes its keyboard layout optimal for one-handed users. Background technique [0002] In general, there are a total of 26 letters of the input characters in English, and about 230,000 words are formed by combinations of these letters. Therefore, in order to input letters in the mobile communication terminal using a 3*4 keypad, the...

AI Technical Summary

Problems solved by technology

[0010] However, in the case where a shift function key needs to be pressed while inputting a letter, the user may not be able to press the shift key first and then the letter because his / her attention is on the spelling

In this case, the traditional mobile communication terminal will cause inconvenience, because it is necessary to move the cursor to the corresponding position by manipulating the direction keys to delete the corresponding letter, and then it is necessary to input the corresponding letter again after pressing the conversion function key

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