公开(公告)号：US11899879B2

公开(公告)日：2024-02-13

申请号：US17281187

申请日：2018-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Honglei Luo ,  Junyong Zhang ,  Weihuan Li ,  Yejian Xu

IPC: G06F3/041 ,  G06F3/044 ,  G06F1/3234 ,  G06F3/0354 ,  G06F3/0488

CPC classification number: G06F3/041662 ,  G06F1/3262 ,  G06F3/03545 ,  G06F3/0442 ,  G06F3/0488 ,  G06F2203/04106

Abstract: A stylus detection method includes detecting, by a terminal, an input signal of a stylus at a first frequency, receiving a first input of the stylus through a touchscreen, detecting, in response to the first input, the input signal of the stylus at a second frequency, detecting the input signal of the stylus at a third frequency when detecting the input signal of the stylus at the second frequency and when a duration in which the terminal does not detect the input signal of the stylus is greater than a first time period. The second frequency is greater than the third frequency and the third frequency is greater than the first frequency.

公开(公告)号：US20210397342A1

公开(公告)日：2021-12-23

申请号：US17281187

申请日：2018-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Honglei Luo ,  Junyong Zhang ,  Weihuan Li ,  Yejian Xu

IPC: G06F3/041 ,  G06F1/3234 ,  G06F3/0354 ,  G06F3/044 ,  G06F3/0488

Abstract: A stylus detection method includes detecting, by a terminal, an input signal of a stylus at a first frequency, receiving a first input of the stylus through a touchscreen, detecting, in response to the first input, the input signal of the stylus at a second frequency, detecting the input signal of the stylus at a third frequency when detecting the input signal of the stylus at the second frequency and when a duration in which the terminal does not detect the input signal of the stylus is greater than a first time period. The second frequency is greater than the third frequency and the third frequency is greater than the first frequency.