公开(公告)号：US20150009172A1

公开(公告)日：2015-01-08

申请号：US14198730

申请日：2014-03-06

Applicant: PIXART IMAGING INC.

Inventor： TSE CHUNG SU ,  MING HUNG TSAI ,  CHI-CHIEH LIAO

IPC: G06F3/044 ,  G06F3/041

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

Abstract: An object positioning method for touch panel is disclosed. The method includes steps as follows: obtaining a motion estimation vector according to the operational analysis of a positioning coordinate and a sensing coordinate, and determining whether the length of the motion estimation vector is smaller than a predetermined distance or not, if the length of the motion estimation vector is smaller than the predetermined distance, outputting the positioning coordinate; on the contrary, if the length of the motion estimation vector is larger than the predetermined distance, updating the value of the positioning coordinate and outputting the positioning coordinate updated.

Abstract translation: 公开了一种用于触摸面板的物体定位方法。 该方法包括以下步骤：根据定位坐标和感测坐标的操作分析获得运动估计向量，并且确定运动估计向量的长度是否小于预定距离，如果 运动估计向量小于预定距离，输出定位坐标; 相反，如果运动估计向量的长度大于预定距离，则更新定位坐标的值并输出更新的定位坐标。

公开(公告)号：US20170255333A1

公开(公告)日：2017-09-07

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: G06F3/041 ,  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.

公开(公告)号：US20160299633A1

公开(公告)日：2016-10-13

申请号：US15187932

申请日：2016-06-21

Applicant: PIXART IMAGING INC.

Inventor： TSE CHUNG SU ,  MING HUNG TSAI ,  CHI-CHIEH LIAO

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

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

Abstract: An object positioning method for touch panel is disclosed. The method includes steps as follows: obtaining a motion estimation vector according to the operational analysis of a positioning coordinate and a sensing coordinate, and determining whether the length of the motion estimation vector is smaller than a predetermined distance or not, if the length of the motion estimation vector is smaller than the predetermined distance, outputting the positioning coordinate; on the contrary, if the length of the motion estimation vector is larger than the predetermined distance, updating the value of the positioning coordinate and outputting the positioning coordinate updated.