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:
Apr. 02, 2024
Filed:
May. 18, 2023
Koninklijke Philips N.v., Eindhoven, NL;
Wilhelmus Gerardus Maria Ettes, Leeuwarden, NL;
Eddy Gerrit Veltman, Steenbergen, NL;
Henricus Antonius Gerardus Van Vugt, Heldmond, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A power transfer device is a power transmitter () or a power receiver () conducting power transfer using an electromagnetic power transfer signal employing a repeating time frame comprising a power transfer time interval and an object detection time interval. A power transfer circuit () comprises a power transfer coil () receiving or generating the power transfer signal during the power transfer time intervals. A communicator () communicates with the other device via an electromagnetic communication signal. A communication resonance circuit () comprises a communication antenna () for transmitting or receiving the electromagnetic communication signal. During the communication, the communication resonance circuit () provides a resonance at a first resonance frequency to the communicator (). A controller () adapts the communication resonance circuit to not provide the resonance at the first resonance frequency to the communicator during object detection time intervals. The approach may provide improved detection of resonance objects, such as smart cards (e.g. NFC cards).