<p>An interactive input system comprises at least two imaging devices associated with a region of interest. The at least two imaging devices acquire images of the region of interest from different locations and have overlapping fields of view. At least one receiver is operable to receive data output by an active pointer when the pointer is both within and outside the fields of view of the imaging devices. Processor structure processes data acquired by the at least two imaging devices and the at least one receiver to detect the existence of an active pointer and to determine the location of the pointer within the region of interest.</p>
申请公布号
WO2007079590(A1)
申请公布日期
2007.07.19
申请号
WO2007CA00051
申请日期
2007.01.12
申请人
SMART TECHNOLOGIES INC.;MORRISON, GERALD;AKITT, TREVOR;KEENAN, VAUGHN EDWARD
发明人
MORRISON, GERALD;AKITT, TREVOR;KEENAN, VAUGHN EDWARD