发明名称 |
Method and device for touch identification, and touch screen |
摘要 |
Method and device for touch identification, and a touch screen are provided. The method includes: performing an axial scanning on a touch screen, and when a touch region is detected, recording scanning axes with scanning rays shielded; corresponding to the detected touch region, according to axial directions, obtaining sets of intersections of the scanning axes with scanning rays shielded; calculating a confidence level for each of the intersection in each set of intersections; and performing a coordinate fusion to all the sets of intersections which correspond to the touch region based on the confidence levels to obtain positions of the touch region. The device includes a scanning record unit, an intersection unit, a calculation unit and a coordinate fusion unit. In the present disclosure, an effective touch region on a touch screen may be better identified. |
申请公布号 |
US9292134(B2) |
申请公布日期 |
2016.03.22 |
申请号 |
US201414252753 |
申请日期 |
2014.04.14 |
申请人 |
SHANGHAI JINGYAN ELECTRONIC TECHNOLOGY CO. LTD |
发明人 |
Zhang Yuming;Zhao Lei;Xu Jiao |
分类号 |
G06F3/041;G06F3/042 |
主分类号 |
G06F3/041 |
代理机构 |
Kilpatrick Townsend & Stockton LLP |
代理人 |
Kilpatrick Townsend & Stockton LLP |
主权项 |
1. A method for touch identification, comprising:
performing an axial scanning on a touch screen, and when a touch region is detected, recording scanning axes with scanning rays shielded; corresponding to the detected touch region, according to axial directions, obtaining sets of intersections of the scanning axes with scanning rays shielded; calculating a confidence level for each of the intersection in each set of intersections; and performing a coordinate fusion to all the sets of intersections which correspond to the touch region based on the confidence levels to obtain positions of the touch region, wherein a portion of the touch region where a scanning axis locates is a parallelogram region, a base of the parallelogram region is an axial position of the touch region, and an angle between the base and a lateral side of the parallelogram region is a deflection angle of the scanning rays with scanning rays shielded. |
地址 |
Shanghai CN |