Touch terminal and active touch pen detection method and system

Abstract

A touch terminal, and an active stylus detection method, and system. The method comprises the following steps: (S201) a controller of a touch screen separately scanning multiple pieces of noise information, of an active stylus of the touch screen, at multiple operating frequencies; (S202) the controller of the touch screen determining a target operating frequency according to the multiple pieces of noise information; and (S203) the controller of the touch screen sending the target operating frequency to the active stylus, and adjusting an operating frequency of the active stylus to the target operating frequency, so that both the active stylus and the touch screen work at the target operating frequency. The controller of the touch screen scans the multiple pieces of noise information, of the active stylus, at the multiple operating frequencies, so as to determine the target operating frequency of the active stylus, so that the active stylus works at the target operating frequency. In this way, use by a user is facilitated, the efficiency of communication between the active stylus and a touch screen terminal is improved, and active styluses of different frequencies are all applicable to the touch screen.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a touch terminal, an active touch pen detection method and system. Background technique [0002] Capacitive touch screens have become standard input devices for mobile electronic devices, and controllers driving capacitive touch screens generally have a frequency hopping function. In the past two years, active pens have gradually appeared on the market, and companies such as HTC, Ntrig, and Goodix have all launched active pen products. The active pen needs to be used together with the capacitive touch screen. figure 1 It is a schematic diagram of the structure of the touch screen. like figure 1 As shown, the main assembly consists of two pieces of glass. The glass above is Coverlens, which is the touch surface and also plays a protective role. The lower layer of glass is the substrate of the sensor, with driving electrodes and sensing electrodes distributed on the upper su...

AI Technical Summary

Problems solved by technology

Although this approach improves the problem to a certain extent, it still requires user intervention

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