Method and device for inputting characters via direction key

Abstract

The invention discloses a method and a device for inputting characters via a direction key. The method comprises the steps of establishing a mapping linear relationship between the charterer to be input into a character collection and a direction key input sequence; establishing at least one code table indicating the mapping relationship, wherein the mapping relationship are expressed as a vector multiplication linear formula consisting of code table numbers and the direction key input sequence; and inputting characters via a selecting key of the code table and a direction key. The inputting of characters comprises the steps of: S10) switching among code tables according to the input of the selecting key of the code table, until confirming a code table being a current code table; S20) displaying prompt information of the current code table on a display, the input direction key input sequence and the input characters; and S30) confirming the input characters in the current code table according to an input sequence of the direction key. The invention can input a great number of characters with fewer keys, decreasing the occupied space and simplifying the structure of electronic device. Furthermore, the direction key, the confirming key and the selecting key of the code table are based on the keys of the current electronic device, such as electronic book reader, video and audio player, etc.

Description

technical field [0001] The invention relates to text input of electronic equipment, in particular to a method for object input through keys, especially a method for character input through direction keys. Background technique [0002] The text input of electronic devices mainly includes handwriting input and keyboard input. Some devices also support point-and-click input through the touch screen. In essence, the screen area is used as a simulated keyboard, which also belongs to the idea of ​​keyboard input. For keyboard input, standard full-keyboard input, such as the keyboard of a computer or a PDA with a full-keyboard, a smart phone, etc. provide the most complete functions, but the full-keyboard requires a relatively large space area, so the use is limited. For this reason, a variety of input methods have been developed for keyboards with fewer keys, among which a 4×3 12-key numeric keypad (keypad) for text input is the most typical. Along with the wide application of mo...

AI Technical Summary

Problems solved by technology

The structure of the device can be very simple, even without modification on the basis of existing hardware, and this input method can overcome the defect in the prior art that a single character must be pressed multiple times due to the reduction in the number of input keys

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