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:
Oct. 15, 2019
Filed:
Feb. 01, 2017
Signify Holding B.v., Eindhoven, NL;
David Ricardo Caicedo Fernandez, Eindhoven, NL;
Ashish Vijay Pandharipande, Eindhoven, NL;
Sandeep Kumar, Waalre, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
A method of testing a sensor unit which detects, locally at the sensor unit, whether a person appears in the images it captures. The method comprises causing a light-emitting device (e.g. screen of a user terminal) to emit a test pattern toward the sensor unit to be captured over a series of images, the test pattern comprising a spatio-temporal pattern of light simulating presence of a predetermined number of people. The method further comprises, at a processing apparatus external to the sensor unit, receiving one or more presence detection reports from the sensor unit indicating an apparent people count detected using the sensor unit when subject to the test pattern. The apparent people count is then compared with the predetermined number of people simulated by the test pattern. Based on this comparison, it is determining whether the sensor unit is functioning correctly.