公开(公告)号：US09354749B2

公开(公告)日：2016-05-31

申请号：US14052481

申请日：2013-10-11

Applicant: PixArt Imaging Inc.

Inventor： Cheng-Nan Tsai ,  Tzung-Min Su ,  Chih-Hsin Lin ,  Yaun-Yu Peng ,  Yu-Chia Lin ,  Chuan-Ching Lin ,  Teng Wei Hsu

IPC: G06F3/042

CPC classification number: G06F3/042

Abstract: There is provided an optical touch system including a touch surface, a plurality of image sensors and a plurality or compensation light sources, wherein each of the image sensors is adjacent to one of the compensation light sources. When one of the image sensors is capturing an image frame, the compensation light source not adjacent to and within a field of view of the image sensor which is capturing the image frame irradiates so as to compensate a brightness distribution of the image frame.

Abstract translation: 提供了一种包括触摸表面，多个图像传感器和多个或补偿光源的光学触摸系统，其中每个图像传感器与补偿光源中的一个相邻。 当其中一个图像传感器正在拍摄图像帧时，不相邻并且在拍摄图像帧的图像传感器的视场内的补偿光源被照射以补偿图像帧的亮度分布。