Virtual keyboard control method and system

Abstract

The invention provides a virtual keyboard control method and system, and the method comprises the steps: obtaining an elastic wave signal generated on a substrate according to touch, and converting the elastic wave signal into a voltage signal; calculating to obtain touch information on the substrate according to the voltage signal, obtaining touch force and a touch position according to the touchinformation, comparing the touch force and the touch position with a preset threshold value, and obtaining a touch instruction through a comparison result; and obtaining corresponding target input key information according to the touch instruction and the touch position in the touch information, and outputting a corresponding control signal according to the target input key information. By meansof the virtual keyboard control method and system, accurate touch recognition can be provided on the premise that the size and weight of an existing keyboard are effectively reduced, the virtual keyboard control method and system are closer to the use habit of a user, and effective popularization of the virtual keyboard is facilitated.

Description

technical field [0001] The invention relates to the field of digital interaction, in particular to a virtual keyboard control method and system. Background technique [0002] With the development of electronic technology, the thinning and thinning of portable electronic equipment has become the primary research and development direction of electronic manufacturers, and users are paying more and more attention to the thinning and thinning of electronic equipment; in order to reduce the space occupied by portable electronic equipment and reduce its weight, A large number of mechanical devices that take up a large space are designated for replacement. The traditional keyboard is one of the above-mentioned components that need to be replaced and reduced. As a substitute product, the "virtual keyboard" came into being. [0003] In the prior art, the virtual keyboard mainly collects data such as the voltage difference when the user uses it through capacitive screens and other indu...

AI Technical Summary

Problems solved by technology

However, the virtual keys on the virtual keyboard are different from the physical keys set on the commonly used physical computer keyboards, and the user's fingers feel relatively different when touched. And make the touch position fall between the predetermined physical key and the adjacent physical key. At this time, the user's fingers can generally clearly feel that the touch position does not accurately fall on the desired predetermined physical key, that is, , in the actual button operation, the user can confirm whether the operation is correct according to the tactile sensation of the finger, but the virtual keyboard cannot provide the tactile sensation of the traditional keyboard, resulting in frequent user input errors; , also lead to when the user adopts conventional input habits, for example, when the user places his hand on the keyboard for touch input, it is difficult for these virtual keyboards to detect changes in capacitance and voltage, and it is impossible to accurately know the user's real input intention, so that the user can Very inconvenient to use

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