The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 16, 2016
Filed:
Mar. 30, 2011
David Gregory Popovich, Nepean, CA;
Yunqiu Rachel Wang, Calgary, CA;
Vaughn E. Keenan, Calgary, CA;
Grant Mcgibney, Calgary, CA;
Robbie Rattray, Calgary, CA;
Patrick James Gurtler, Ottawa, CA;
Chris Willson, Calgary, CA;
Nicholas Svensson, Calgary, CA;
David Gregory Popovich, Nepean, CA;
Yunqiu Rachel Wang, Calgary, CA;
Vaughn E. Keenan, Calgary, CA;
Grant McGibney, Calgary, CA;
Robbie Rattray, Calgary, CA;
Patrick James Gurtler, Ottawa, CA;
Chris Willson, Calgary, CA;
Nicholas Svensson, Calgary, CA;
SMART Technologies ULC, Calgary, CA;
Abstract
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.