公开(公告)号：US09213448B2

公开(公告)日：2015-12-15

申请号：US14097257

申请日：2013-12-05

Applicant: PixArt Imaging Inc.

Inventor： Yu-Chia Lin ,  Chun-Yi Lu ,  Chun-Sheng Lin ,  Yu-Hsiang Huang ,  Hsin-Chi Cheng

IPC: G06F3/042

CPC classification number: G06F3/0428

Abstract: A method of calculating a coordinate of a touch medium is disclosed in the present invention. The method includes obtaining a first image to determine whether the first image overlaps a first threshold, generating a first interceptive boundary when the first image overlaps the first threshold, obtaining a second image to generate a second interceptive boundary by overlap of the second image and a second threshold, determining whether the first interceptive boundary overlaps the second interceptive boundary, and confirming a status of the touch medium according to determination.

Abstract translation: 在本发明中公开了一种计算触摸媒体坐标的方法。 该方法包括获取第一图像以确定第一图像是否与第一阈值重叠，当第一图像与第一阈值重叠时产生第一截取边界，获得第二图像以通过第二图像和第二图像的重叠生成第二截截边界 第二阈值，确定第一截取边界是否与第二截取边界重叠，以及根据确定确认触摸媒体的状态。