Invention Grant
US08446392B2 Method for determining the location of a pointer in a pointer input region, and interactive input system executing the method
有权
用于确定指针在指针输入区域中的位置的方法，以及执行该方法的交互式输入系统
- Patent Title: Method for determining the location of a pointer in a pointer input region, and interactive input system executing the method
- Patent Title (中): 用于确定指针在指针输入区域中的位置的方法，以及执行该方法的交互式输入系统
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Application No.: US12619173Application Date: 2009-11-16
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Publication No.: US08446392B2Publication Date: 2013-05-21
- Inventor: Yunqiu (Rachel) Wang , Grant McGibney , Gerald Morrison
- Applicant: Yunqiu (Rachel) Wang , Grant McGibney , Gerald Morrison
- Applicant Address: CA Calgary, Alberta
- Assignee: SMART Technologies ULC
- Current Assignee: SMART Technologies ULC
- Current Assignee Address: CA Calgary, Alberta
- Agency: Katten Muchin Rosenman, L.L.P.
- Main IPC: G06F3/042
- IPC: G06F3/042
Abstract:
An interactive input system comprises a touch surface, and imaging system associated with the touch surface and processing structure. The imaging system comprises an optical sensor array that spans at least a portion of the area of the touch surface, and the processing structure communicates with the imaging system and analyzes images received by the imaging system to determine whether at least one pointer is near to the touch surface and the location of the at least one pointer in respect of the touch surface based at least in part on the edge sharpness of the at least one pointer.
Public/Granted literature
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