Numeric keypad character input method

Abstract

The invention discloses a numeric keypad character input method which is characterized by using buttons 0-9 on a numeric keypad, and the code length of numerical coding is 4-5 bits. The numerical coding method comprises the following steps of: for characters, taking the total stroke number of a character represented by two numerals as a first bit and a second bit, taking the first three strokes of the character to be coded as third to fifth bits, and inputting a stop code when the total code length is less than 5 bits, wherein the correspondence between the stroke codes and the strokes is as follows: 0 represents the horizontal or right-lifting stroke, 1 represents the vertical stroke, 2 represents the left-falling stroke, 3 represents point or the right-falling stroke, and 4 represents the folding stroke; and for letters, numerals and symbols, taking two numerals as arrangement sequence, one numeral as an identifier and the fourth bit as a stop code. Characters and other symbols can be input by using the same method without changing the input state, and the method has low coincident code rate and is applicable to various input devices with numeric keypads.

Description

technical field [0001] The invention relates to a method for inputting characters to a processing device with an input device, in particular to a method for inputting Chinese characters, letters, numbers and other symbols by using a numeric keyboard with keys 0-9. Background technique [0002] With the continuous expansion of computer technology application fields, the requirements for text input are also increasing. In the application, it is necessary to input numbers, letters, Chinese characters, punctuation marks, operators and other printable characters through the keyboard. We generally call them characters. Generally, the above-mentioned types of characters will appear in the input content. [0003] In many applications, the input device is only equipped with a small keyboard, which generally includes number keys 0 to 9, keys * and #, such as keys on a mobile phone. ATM machines and other equipment are also equipped with small keyboards. In addition, some devices with...

AI Technical Summary

Problems solved by technology

If the device supports other input characters at the same time, such as Japanese input, Russian input, etc., the number of keystrokes will be more when switching. Moreover, frequent switching between different input methods will cause confusion in the user's memory and lead to input errors.

[0004] Another problem is that due to the use of multi-letter shared numeric keys, when inputting letters and when inputting Chinese characters with the pinyin input method, repeated input of the same key often occurs, and when switching the input state, it is also necessary to repeatedly input the switching key. For soft keyboards such as those used on touch screens, this can lead to a significant decrease in input speed, or an increase in input errors