公开(公告)号：US09898137B2

公开(公告)日：2018-02-20

申请号：US15598226

申请日：2017-05-17

Applicant: PIXART IMAGING INC.

Inventor： Tse Chung Su ,  Ming Hung Tsai ,  Chi-Chieh Liao

IPC: G06F3/045 ,  G06F3/041 ,  G06F3/044 ,  G06F3/0354

CPC classification number: G06F3/0418 ,  G06F3/03545 ,  G06F3/044

Abstract: An object positioning method for touch panel is disclosed. In the method, an amount of sensing of a sensing signal can be detected and a sensing coordinate of an object can be obtained based on the detection. A positioning coordinate of the object can be locked in a point-locked mode when the amount of sensing of the sensing signal decreases continuously to be larger than a first threshold time and the amount of sensing of the sensing signal is smaller than a first sensing threshold value. Otherwise, the point-locked mode of the positioning coordinate of the object can be unlocked when the amount of sensing of the sensing signal is larger than a first sensing threshold value.