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:
Mar. 21, 2017
Filed:
Jan. 11, 2013
Applicant:
Smart Technologies Ulc, Calgary, CA;
Inventors:
Cameron Taylor, Calgary, CA;
Clinton Lam, Calgary, CA;
Assignee:
SMART TECHNOLOGIES ULC, Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/038 (2013.01); G06F 3/03 (2006.01); G06F 3/042 (2006.01); G06T 7/00 (2006.01); G06F 3/0354 (2013.01);
U.S. Cl.
CPC ...
G06F 3/0383 (2013.01); G06F 3/0304 (2013.01); G06F 3/0425 (2013.01); G06F 3/0428 (2013.01); G06T 7/004 (2013.01); G06T 7/0022 (2013.01); G06F 3/03545 (2013.01);
Abstract
An interactive input system comprises at least one imaging device configured to capture image frames of a region of interest comprising a background and at least one background feature. Processing structure is configured to compare the image frames to determine if the location of the at least one background feature has changed signifying system displacement.