发明名称 |
Touch system and pointer coordinate detection method therefor |
摘要 |
A pointer coordinate detection method for a touch system includes the steps of: capturing an image window looking across a plate surface with at least one image sensor; identifying a height coordinate of a pointer relative to the touch system according to a variation of each column of pixels in the image window; and calculating a plane coordinate of the pointer relative to the touch system according to an image position of the pointer in the image window. The present invention further provides a touch system. |
申请公布号 |
US8659577(B2) |
申请公布日期 |
2014.02.25 |
申请号 |
US20100813599 |
申请日期 |
2010.06.11 |
申请人 |
SU TZUNG MIN;CHEN HSIN CHIA;LU CHIH HUNG;PIXART IMAGING INC. |
发明人 |
SU TZUNG MIN;CHEN HSIN CHIA;LU CHIH HUNG |
分类号 |
G06F3/042 |
主分类号 |
G06F3/042 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|