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:
Apr. 21, 2020
Filed:
Nov. 01, 2017
Applicant:
Avigilon Fortress Corporation, Vancouver, CA;
Inventors:
Himaanshu Gupta, Herdon, VA (US);
Andrew J. Chosak, Bethleham, PA (US);
Geoffrey R. Taylor, Reston, VA (US);
Paul C. Brewer, Arlington, VA (US);
Niels Haering, Reston, VA (US);
Alan J. Lipton, Austin, TX (US);
Assignee:
AVIGILON FORTRESS CORPORATION, Vancouver, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 17/00 (2006.01); G08B 13/196 (2006.01);
U.S. Cl.
CPC ...
H04N 17/002 (2013.01); G08B 13/1963 (2013.01);
Abstract
A method to determine a base focal length of a pan-tilt-zoom (PTZ) camera system. The method includes generating a spherical mosaic with a feature track by the camera system and determining, by the camera system, a base focal length by analyzing a conic trajectory created by the feature track on an image plane.