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. 28, 2017
Filed:
Jan. 11, 2013
Applicant:
Smart Technologies Ulc, Calgary, CA;
Inventors:
Clinton Lam, Calgary, CA;
David Popovich, Calgary, CA;
Robbie Rattray, Calgary, CA;
Grant McGibney, Calgary, CA;
Assignee:
SMART TECHNOLOGIES ULC, Calgary, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/134 (2006.01); G06F 3/042 (2006.01); H04N 5/351 (2011.01); G06F 3/0354 (2013.01); H04N 9/31 (2006.01); F21V 5/04 (2006.01); F21V 21/14 (2006.01); G06F 3/038 (2013.01); G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0425 (2013.01); F21V 5/04 (2013.01); F21V 21/14 (2013.01); G03B 21/134 (2013.01); G06F 3/0354 (2013.01); G06F 3/0386 (2013.01); G06F 3/03542 (2013.01); G06F 3/042 (2013.01); G06F 3/0416 (2013.01); G06F 3/0418 (2013.01); G06F 3/0428 (2013.01); H04N 5/351 (2013.01); H04N 9/3179 (2013.01); H04N 9/3194 (2013.01);
Abstract
An image capture method comprises generating a synchronization signal based on modulated illumination; and synchronizing image frame capture of at least one image sensor using the synchronization signal with the illumination timing of an active pointer within a region of interest in the field of view of the at least one image sensor.