| 发明名称 |
Positioning module, optical touch system and method of calculating a coordinate of a touch medium |
| 摘要 |
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. |
| 申请公布号 |
US9213448(B2) |
申请公布日期 |
2015.12.15 |
| 申请号 |
US201314097257 |
申请日期 |
2013.12.05 |
| 申请人 |
PixArt Imaging Inc. |
发明人 |
Lin Yu-Chia;Lu Chun-Yi;Lin Chun-Sheng;Huang Yu-Hsiang;Cheng Hsin-Chi |
| 分类号 |
G06F3/042 |
主分类号 |
G06F3/042 |
| 代理机构 |
|
代理人 |
Hsu Winston;Margo Scott |
| 主权项 |
1. A method of calculating a coordinate of a touch medium, the method comprising:
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; and confirming the touch medium is at a hovering status when the first interceptive boundary does not overlap the second interceptive boundary. |
| 地址 |
Science-Based Industrial Park, Hsin-Chu TW |
