Pressure detection method, device, system, touch chip and electronic equipment

Abstract

The application provides a pressure detection method, which can be used for preventing the delayed display of the writing pressure of the active pen on the screen. This method is used to detect the pressure generated by the active pen above the screen. The active pen includes a first electrode, a second electrode and a pressure sensor. The first electrode is used to output a first coding signal, and the second electrode is used to output a second coding signal when the pressure sensor detects the first pressure generated by the active pen. The first detection signal corresponding to the firstcoding signal is used to determine the position of the active pen on the screen. The second detection signal corresponding to the second coding signal is used to calibrate the position. The method includes the following steps: when the information of the first pressure is not received, whether the active pen presses the screen is determined according to the second detection signal; if it is determined that the active pen presses the screen, the handwriting of the active pen is displayed through the screen according to the second pressure, and the second pressure is the preset pressure.

Description

technical field [0001] The embodiments of the present application relate to the field of information technology, and more specifically, relate to a pressure detection method, device, system, touch chip and electronic equipment. Background technique [0002] At present, active pens, as the main peripheral input accessories of electronic equipment, are gradually attracting the attention of the market. The pen tip of the active pen will emit signals, and a certain number of horizontal detection electrodes and vertical detection electrodes are distributed on the touch plane, so the signals emitted from the pen tip can be detected through the detection electrodes, and calculated according to the detection signals The two-dimensional position coordinates of the pen tip on the touch plane. [0003] Usually, a pressure sensor can also be set in the active pen to detect the pressure generated by the active pen, so as to adjust the handwriting of the active pen on the screen accordin...

AI Technical Summary

Problems solved by technology

However, the wireless communication method will cause a transmission delay. After the active pen generates pressure, the screen may not be able to receive the pressure information in time, resulting in a delay in the display of the writing pressure on the screen and affecting the user experience.

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