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Recognizing technology of two finger gesture input of capacitive touch screen

A technology of capacitive touch screen and recognition technology, applied in the input/output process of data processing, electrical digital data processing, instruments, etc., can solve the problems of large chip storage space, reduce gesture recognition rate, increase software algorithm, etc., to prevent errors , Improve the recognition success rate and improve the effect of recognition efficiency

Active Publication Date: 2012-12-12
江西联创(万年)电子有限公司
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AI Technical Summary

Problems solved by technology

[0009] Using the existing two-finger gesture recognition technology, the trajectory information of the two fingers must be recorded at the same time, which takes up a lot of storage space in the touch screen control chip
In addition, when confirming the trajectory in the above process 4, a large number of calculations and judgments are required, which increases the software algorithm and reduces the efficiency; and once the trajectory is confirmed wrong (for example, it should be AC, BD is mistaken for AD, BC), and finally Gesture matching will not be successful, thereby reducing the recognition rate of gestures

Method used

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  • Recognizing technology of two finger gesture input of capacitive touch screen

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Embodiment

[0033] Example: see figure 1 , the specific capacitive touch screen input two-finger gesture defined in the present invention means that during the movement of the two fingers, the distance between the two fingers is always fixed along with the change of the movement track 101 . The solid line represents the moving track 101 of the finger, and the arrow represents the moving direction; the distance d indicated by the dotted arrow is the distance at any moment during the synchronous movement of the two fingers, and its size remains unchanged. As long as the gesture definition that meets the following conditions can be used as an applicable input gesture for the gesture recognition technology mentioned in the present invention:

[0034] 1) At any time, there are only two points appearing on the capacitive touch screen at the same time;

[0035] 2) No matter how the positions of two points change on the touch screen, the distance between them always remains the same.

[0036]...

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Abstract

The invention provides recognizing technology of two finger gesture input of a capacitive touch screen. In the process of moving two fingers, with the change of moving tracks, the distance between the two fingers is always not changed. In the specific recognizing process, the track of a single finger is recorded and matched according to the single finger gesture so as to simplify the two finger gesture recognition to single finger recognition, so that the requirements for hardware resource demand to a touch screen chip are greatly reduced, and the two finger gesture recognizing efficiency is improved; and meanwhile, as the two finger gesture recognition is simplified to the single finger track recognition, a large amount of operation and judgment is not needed when the tracks are confirmed, the possibility of errors can be prevented, and further, the success rate of gesture recognizing is improved.

Description

technical field [0001] The invention relates to a capacitive touch screen input recognition technology, in particular to a capacitive touch screen two-finger gesture input recognition technology. Background technique [0002] With the application of capacitive touch screen more and more widely and the improvement of multi-point recognition technology, the original definition of single-finger gestures is limited by its number and can no longer meet the growing application needs of users. Therefore, it is necessary to implement multi-finger gesture input The application of capacitive touch screen is expanded. Among the multi-finger gestures, two-finger gestures are considered first because they are most in line with the user's usage habits and are the easiest to implement. However, compared with single-finger gestures, the recognition of two-finger gestures is undoubtedly more difficult than single-finger gestures because it needs to track and analyze two points at the same ...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 沈焕
Owner 江西联创(万年)电子有限公司
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