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:
Mar. 06, 2018
Filed:
Aug. 27, 2013
Philips Lighting Holding B.v., Eindhoven, NL;
Jurgen Mario Vangeel, Beerse, BE;
Wijnand Johannes Rietman, Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
According to a first aspect of the invention, a method () of operating a presence detector () is provided, comprising the steps of transmitting () a first wave signal in a first time slot () for detecting presence of an object, based on an echo of the first wave signal, and if presence of an object is detected, changing () a property parameter of the first wave signal. According to a second aspect of the invention, a method () of operating a presence detector () is provided, comprising the steps of monitoring (), in a first time slot (), a property parameter of a first wave signal transmitted from another presence detector (), and transmitting () a control signal upon detection of a change in the monitored property parameter of the first wave signal. The invention is advantageous in that presence information is communicated between different presence detectors without any need for additional communication systems, thereby reducing technical complexity and costs.