公开(公告)号：US09262011B2

公开(公告)日：2016-02-16

申请号：US13075508

申请日：2011-03-30

申请人： David Gregory Popovich ,  Yunqiu Rachel Wang ,  Vaughn E. Keenan ,  Grant McGibney ,  Robbie Rattray ,  Patrick James Gurtler ,  Chris Willson ,  Nicholas Svensson

发明人： David Gregory Popovich ,  Yunqiu Rachel Wang ,  Vaughn E. Keenan ,  Grant McGibney ,  Robbie Rattray ,  Patrick James Gurtler ,  Chris Willson ,  Nicholas Svensson

IPC分类号： G06F3/042

CPC分类号： G06F3/042 ,  G06F2203/04109

摘要： An interactive input system comprises an optical waveguide, a radiation source directing radiation into the optical waveguide, the radiation undergoing total internal reflection within the optical waveguide in response to at least one touch input on a surface of the optical waveguide. At least one imaging device is positioned adjacent to the waveguide, the at least one imaging device having a field of view looking inside the optical waveguide and capturing image frames thereof. Processing structure processes the image frames captured by the at least one imaging device to determine a location of the at least one touch input based on a frequency of reflections of the radiation appearing in the image frame.

摘要翻译： 交互式输入系统包括光波导，将辐射引导到光波导中的辐射源，响应于光波导的表面上的至少一个触摸输入，在光波导内经历全内反射的辐射。 至少一个成像装置被定位成与波导相邻，所述至少一个成像装置具有在光波导内部的视野并且捕获其图像帧。 处理结构处理由至少一个成像装置拍摄的图像帧，以基于出现在图像帧中的辐射的反射频率来确定至少一个触摸输入的位置。