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:
Dec. 02, 2014
Filed:
May. 09, 2008
Applicants:
Jeremy Hansen, Calgary, CA;
Trevor R. Wellington, Calgary, CA;
Mark Slevinsky, Calgary, CA;
Inventors:
Assignee:
SMART Technologies ULC, , CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/042 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0421 (2013.01);
Abstract
An interactive input system comprises a bezel at least partially surrounding a region of interest. The bezel has a plurality of bands thereon with at least some adjacent bands having different optical properties. At least one imaging device looks into the region of interest and sees the at least one bezel so that acquired images comprise regions corresponding to the bands. Processing structure processes pixels of a plurality of the regions to detect the existence of a pointer in the region of interest.