Invention Application
- Patent Title: Active Stylus Calibration Method, Active Stylus, And Electronic Device
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Application No.: US17431391Application Date: 2020-02-21
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Publication No.: US20220137729A1Publication Date: 2022-05-05
- Inventor: Yang Zou , Junyong Zhang
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen, Guangdong
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen, Guangdong
- Priority: CN201910153176.3 20190228
- International Application: PCT/CN2020/076098 WO 20200221
- Main IPC: G06F3/0354
- IPC: G06F3/0354 ; G06F3/038 ; G06F3/041 ; G06F3/044 ; H04W4/80

Abstract:
An active stylus calibration method includes establishing, by an electronic device having a touchscreen, a network connection to an active stylus, detecting a function signal from the active stylus, determining a distance between the active stylus and the touchscreen based on a parameter value, obtained through detection, corresponding to the function signal, where a smaller parameter value indicates a larger distance, and when a timing is started when the distance is at a first threshold, the timing duration reaches a specified duration and the distance is at a second threshold, sending, through a network, a force calibration instruction to the active stylus to calibrate a force sensor based on the force calibration instruction.
Information query
IPC分类: