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:
Aug. 26, 2025
Filed:
Dec. 12, 2022
U-blox Ag, Thalwil, CH;
Dimitris Kalogiros, Thalwil, CH;
Ioannis Sarris, Thalwil, CH;
Matthias Mahlig, Thalwil, CH;
Peter Karlsson, Thalwil, CH;
u-blox AG, Thalwil, CH;
Abstract
Calibrating an anchor point in a positioning system includes, in an example implementation, transmitting a localization signal between a mobile device and the anchor point, determining a first direction between the mobile device and the anchor point in a local coordinate system based on the transmitted localization signal, and determining a second direction between the mobile device and the anchor point in a global coordinate system based on the determined first direction and a stored anchor orientation of the anchor point, the anchor orientation defining the local coordinate system of the anchor point with respect to the global coordinate system. Calibrating the anchor point further includes acquiring a target position of the mobile device, the target position being associated with the transmitted localization signal, determining a third direction between the mobile device and the anchor point in the global coordinate system based on a known anchor position and the target position, and adjusting the stored anchor orientation based on the first direction and a difference between the second and the third direction.