Method and device for inputting characters by touch screen

Abstract

The invention discloses a method for inputting characters by a touch screen, comprising the following steps: dividing each simulation press key on a soft keyboard of the touch screen into at least two areas; enabling each area to correspond to one character, and storing coordinate range parameters of each simulation press key as well as coordinate range parameters corresponding to each area on the simulation press key in the soft keyboard and a mapping relation between each area and the character; acquiring initial position coordinate parameters corresponding to initial input operation; determining the simulation press key to which the initial input operation belongs according to the acquired initial position coordinate parameters, and amplifying the simulation press key according to amplification parameters set in advance; acquiring termination position coordinate parameters corresponding to termination input operation; and determining input characters according to the termination position coordinate parameters. The invention also discloses a device for inputting characters by a touch screen. Applying the device can reduce the operation frequency of a user and reduce the probability of choosing error characters, thereby improving the character input efficiency.

Description

technical field [0001] The invention relates to character input technology, in particular to a method and device for character input on a touch screen. Background technique [0002] At present, small electronic devices such as mobile phones and personal digital assistants usually input characters by clicking the simulated keyboard on the touch screen. The simulated keyboard is also called a soft keyboard. Two characters, the characters include one or any combination of letters, numbers and symbols. [0003] In the following description, the character input is described by taking the touch screen of the mobile phone as an example. When inputting characters, the user clicks a simulated button on the soft keyboard, and all the characters on the simulated button are displayed on the mobile phone, and the user selects one or more characters from the displayed characters to determine the character to be input. [0004] It can be seen from the above that in practical applications...

AI Technical Summary

Problems solved by technology

[0004] It can be seen from the above that in practical applications, due to the limitation of the external dimensions of the mobile phone itself, the external dimensions of the touch screen and the soft keyboard on the mobile phone are small, the characters displayed on the soft keyboard are small, and the size of the simulated keys set on the soft keyboard is also small. Therefore, when entering characters, due to the small size of the displayed characters, it is difficult for the user to select the characters, and often the wrong characters are selected, and the accuracy of character input is low; further, each analog button is also defined with at least When inputting two characters, the user needs to click multiple times (for multiple operations or selections) to select the desired character from at least two characters. The operation is cumbersome, and it takes a long time to input characters, which reduces the input efficiency. The work efficiency is low, and the wrong characters are often selected

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