Embedded-device-based character input method with single key and double knobs combined

An embedded device, character input technology, applied in the input/output process of data processing, electrical digital data processing, instruments, etc., can solve the problem of not providing enough buttons, knobs, and unable to install enough auxiliary input devices, etc., to achieve display Intuitive and easy-to-implement effects

Inactive Publication Date: 2014-03-26
AVIC NO 631 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] General-purpose aircraft is a type of small airborne equipment platform, which cannot be equipped with sufficient auxiliary input equipment like ground equipment
On such small airborne devices, it is often necessary to input specific characters to real

Method used

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  • Embedded-device-based character input method with single key and double knobs combined
  • Embedded-device-based character input method with single key and double knobs combined
  • Embedded-device-based character input method with single key and double knobs combined

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Example Embodiment

[0028] 1. Definition of use

[0029] It is stipulated that the input of specific characters on this airborne embedded device should meet the following conditions:

[0030] 1) Input character set Φ, this character set can be customized according to the application needs of the device, such as numbers 0-9, English letters A-Z, Chinese characters and specific symbols can also be input;

[0031] 2) The total number of characters N of the character set Φ;

[0032] 3) The character set Φ has at least one null character;

[0033] 4) Determine the maximum length L of the input string according to the background of the device;

[0034] 5) When inputting a character string, the input position of the character is called the character position P;

[0035] 6) The length of each input string is Lc;

[0036] 7) The character on each character position P must be a certain element in the character set Φ;

[0037] 8) When inputting a character string, the character position P can move free...

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Abstract

The invention provides an embedded-device-based character input method with a single key and double knobs combined. Operation can be easily and conveniently carried out by means of the method, and a character input device is simple in structure. The method includes the following steps that firstly, a key and knob character input mode is started; secondly, the knob A is rotated, characters in a character set phi appear at a current character input position sequentially, and the knob A is stopped from being rotated when the needed character appears, which indicates that the character is selected; thirdly, the knob B is rotated, the current character input position moves according to the rotation sequence, and the knob B is stopped from being rotated when the current character input position moves to the position of the character needing to be input, which indicates that the position corresponds to the character selected in the second step; fourthly, the second step and the third step are sequentially and repeatedly executed till a needed character string is completely and correctly displayed; fifthly, a key is pressed, and then a system can be informed that input of the needed character string is completed.

Description

technical field [0001] The invention relates to a character input device and method based on an embedded device. Background technique [0002] The mobile phone is the platform where people use embedded devices to input the most characters. It uses ten number keys to input 26 letters and numbers, and a switch button is used to select whether the nine input keys are to input letters or numbers. When in the number input mode, these ten keys are in the number input mode, representing their corresponding number characters; when in the letter input mode, the characters corresponding to the numbers from 0 to 9 are as follows: 0 (empty); 1 ( NULL); 2(ABC); 3(DEF); 4(GHI); 5(JKL); 6(MNO); 7(PQRS); 8(TUV); 9(WXYZ). When it is necessary to input a specific character, select the number button with the character and press it continuously, and the letters of the character will appear in a cycle, thereby realizing the input of letters. The traditional airborne cockpit input device is to ...

Claims

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Application Information

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IPC IPC(8): G06F3/023
Inventor 缪炜涛李莉赵茜王青刘文李文军
Owner AVIC NO 631 RES INST
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