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:
Jul. 23, 2024
Filed:
Sep. 14, 2018
Koninklijke Philips N.v., Eindhoven, NL;
Wilhelmus Gerardus Maria Ettes, Leeuwarden, NL;
Eddy Gerrit Veltman, Steenbergen, NL;
Andries Van Wageningen, Wijlre, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A wireless power transmitter () comprises a driver () generating a drive signal for a transmitter coil () thereby generating a power transfer signal during power transfer intervals of a repeating time frame comprising at least one power transfer interval and one foreign object detection interval. A test generator () generates a test drive signal for a test coil () thereby generating an electromagnetic test signal during foreign objectdetection intervals. A foreign object detector () performs a foreign object detection test in response to a measured parameter for the test drive signal during the foreign object detection intervals. An adapter () generates a varying test drive signal for the test coil () during an adaptation interval, and determines a test drive signal parameter value in response to the varying test drive signal. The test generator () sets a signal property of the test drivesignal during at least one foreign object detection interval in response to the test drive signal parameter value.