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:
Sep. 23, 2025
Filed:
Dec. 16, 2021
Koninklijke Philips N.v., Eindhoven, NL;
Bernhard Gleich, Hamburg, DE;
Jürgen Erwin Rahmer, Hamburg, DE;
Ingo Schmale, Hamburg, DE;
Tim Nielsen, Hamburg, DE;
Richard Moessel, Hamburg, DE;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
A wireless passive marker device () to be tracked and a respective tracking system () are provided which make use of a sensing unit () comprising a resonator element () with piezoelectric properties and a coil element (), whereby an externally applied excitation field having a particular frequency is applied to act on the sensing unit () and wherein the sensing unit () responds to the externally applied excitation field by the resonator element () performing persisting mechanical oscillations in resonant mode, the persisting mechanical oscillations resulting in a piezoelectric voltage causing the coil element () to generate a magnetic field that may then be detected by the tracking system () and used for determining the position of the marker device () and/or sensing a physical property in the surrounding environment of the marker device ().