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. 15, 2017
Filed:
Jan. 19, 2016
Google Inc., Mountain View, CA (US);
Aveek Ravishekhar Purohit, Mountain View, CA (US);
William Alan Saperstein, San Carlos, CA (US);
Google Inc., Mountain View, CA (US);
Abstract
A system is disclosed for determining the size and location of an object in a monitored area. The system includes a passive infrared sensor (PIR) configured to detect infrared radiation in a monitored area, a lens system including a plurality of lenslets, the plurality of lenslets encoded to create a mask area within the monitored area, a reflective element configured to focus the infrared radiation in the monitored area onto the PIR sensor, and a processor. The processor is configured to detect a moving object in the monitored area, initiate the movement of the reflective element, generating an object signature over time as the reflective element is moved, and the size and location of the object is determined based on the object signature.