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:
Jun. 27, 2023
Filed:
Mar. 08, 2022
Koninklijke Philips N.v., Eindhoven, NL;
Wilhelmus Gerardus Maria Ettes, Leeuwarden, NL;
Andries Van Wageningen, Wijlre, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A power receiver receives a wireless power transfer from a power transfer signal generated by a wireless power transmitter during a power transfer phase. The power transfer signal employing a repeating time frame during the power transfer phase where the frame comprises at least a power transfer time interval and a foreign object detection time interval. The power receiver comprises a synchronizer () which synchronizes a local time reference to the repeating time frame and a load controller () which disconnects a load () during at least part of the foreign object time detection time intervals during at least part of the power transfer phase. The timing of the disconnecting is dependent on the local time reference. A mode controller () switches between a first operational mode and a second operational mode for the power transfer time intervals in response to a reliability measure for the synchronization.