Input method and device of intelligent pen on intelligent display terminal and intelligent pen

Abstract

The invention discloses an input method and device of an intelligent pen on an intelligent display terminal and the intelligent pen. The method comprises the following steps: receiving track data input by a intelligent pen, and transcoding the track data; adaptively removing a plurality of points in the transcoded data according to the sampling frame rate of the intelligent pen, and recording thenumber of removed points and coordinate points of remaining data; calculating derivatives of adjacent points in the coordinate points, reserving the coordinate points corresponding to all inflection points as a feature point array, and removing other points; and drawing and displaying an input track of the intelligent pen according to the feature points and the number of the removal points. According to the input method of the intelligent pen on the intelligent display terminal, the defects that keyboard, mouse and intelligent pen input modes are inflexible and a screen is small are overcome,the problem that handwriting is not clear due to the fact that a dot matrix pen is low in response speed is solved, a track consistent with original handwriting is synchronously presented on a touch screen, and the user experience is improved. And the quality of mobile office and online teaching is improved.

Description

technical field [0001] The invention relates to the technical field of intelligent electronic equipment, in particular to an input method and device for an intelligent pen on an intelligent display terminal and the intelligent pen. Background technique [0002] At present, the application of mobile office and online education is gradually widespread. It mainly provides cloud users with a better application experience through intelligent input devices, combined with technologies such as compression, streaming, and encoding; at the same time, through audio and video processing, conferences and education Move from offline to online to improve office and teaching efficiency. In the prior art, the commonly used methods for online meetings or teaching are usually divided into three categories: first, writing on the shared whiteboard through the keyboard and mouse, but this method has many restrictions due to the inflexible input methods of the mouse and keyboard, which leads to ha...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a smart pen input method, device and smart pen on the smart display terminal, which overcomes the shortcomings of inflexible input methods such as keyboard and mouse, touch screen, and capacitive pen, and the writing area is limited by the screen. Due to the problem of unclear handwriting caused by the slow system response speed of the dot matrix pen, the trajectory consistent with the original handwriting can be synchronously presented on the smart display terminal, which improves the quality of mobile office and online teaching

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