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:
Nov. 03, 2015
Filed:
Apr. 01, 2010
Gerald Morrison, Calgary, CA;
David Holmgren, Calgary, CA;
Gerald Morrison, Calgary, CA;
David Holmgren, Calgary, CA;
SMART Technologies ULC, Calgary, CA;
Abstract
A camera-based touch system () includes a passive touch surface () and at least two cameras () associated with the touch surface. The at least two cameras () have overlapping fields of view (FOV) encompassing the touch surface. The at least two cameras () acquire images of the touch surface from different locations and generate image data. A processor () receives and processes image data generated by the at least two cameras to determine the location of the pointer relative to the touch surface when the pointer is captured in images acquired by the at least two cameras. Actual pointer contact with the touch surface and pointer hover above the touch surface can be determined.