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:
Aug. 27, 2019
Filed:
Mar. 26, 2018
Applicant:
Cognitive Systems Corp., Waterloo, CA;
Inventors:
Oleksiy Kravets, Petersburg, CA;
Yunfeng Piao, Kitchener, CA;
Assignee:
Cognitive Systems Corp., Waterloo, Ontario, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/00 (2006.01); G01S 13/04 (2006.01);
U.S. Cl.
CPC ...
G01S 13/04 (2013.01); G01S 13/003 (2013.01);
Abstract
In a general aspect, a monitoring system detects presence of an object in a space, e.g., when no motion is detected. Motion of an object in a space is detected by analyzing a first set of signals based on wireless signals transmitted in a first time period. Lack of motion in the space is detected by analyzing a second set of signals based on wireless signals transmitted in a second, subsequent time period. Whether the object was present in the space during the second time period is detected by analyzing the second set of signals.