Active stylus calibration method, active stylus and electronic device

Abstract

The embodiment of the invention provides an active stylus calibration method, an active stylus and an electronic device. The method comprises: the electronic device with a touch display screen establishing network connection with an active stylus, then detecting a function signal emitted by the active stylus, determining the distance between the active stylus and the touch display screen accordingto a detected parameter value corresponding to the function signal, wherein the smaller the parameter value is, the larger the distance is; when the distance is equal to the first threshold value, starting timing, when the timing duration reaches the set duration and the distance is equal to the second threshold value, sending a pressure calibration instruction to the active stylus through the network, the active stylus calibrating the pressure sensor according to the pressure calibration instruction, and the problems of mistaken calibration and water leakage of the active stylus can be solved.

Description

technical field [0001] The present application relates to the field of terminal technology, and in particular to an active stylus calibration method, an active stylus and electronic equipment. Background technique [0002] With the development of touch technology, more and more mobile terminals use touch to perform human-computer interaction. The touch screen of the mobile terminal can be operated not only by finger touch, but also by a stylus. [0003] Stylus includes passive stylus and active stylus. Among them, the function of the passive stylus is equivalent to that of a human finger. When the passive stylus touches the touch screen, a small part of the current flows into the passive stylus from the touch point on the touch screen, which is equivalent to touch The change of electrode capacitance at the point, the control chip of the touch screen can determine the position of the touch point by detecting the change of electrode capacitance. The tip of a passive stylus ...

AI Technical Summary

Problems solved by technology

However, when the active stylus is written under a fixed pressure, according to the above judgment conditions, it will be mistaken for no change in the pressure value of the pressure sensor, and a miscalibration will occur, resulting in that if the user’s subsequent pressure on the pen is lower than the reference value , the report point cannot be generated between the touch screens (or commonly known as "no water")

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