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. 02, 2025
Filed:
Jun. 13, 2023
Niantic Spatial, Inc., San Francisco, CA (US);
Ben Benfold, Oxford, GB;
Niantic Spatial, Inc., San Francisco, CA (US);
Abstract
The present disclosure describes a method for estimating a pose of a client device using a magnetic field vector map. The method includes receiving a plurality of magnetic field measurements from a plurality of client devices, each magnetic field measurement describing a magnetic field vector at a geographic location. The method further includes grouping the magnetic field measurements into one or more region groups, aggregating the magnetic field measurements in each region group to generate a probability distribution of magnetic field vectors associated with the geographic region, determining a magnetic field vector within each geographic region, and generating a magnetic field vector map. Based on the magnetic field vector map, the method may include estimating a pose of a client device based on a user location of the client device and received magnetic field vector from the client device.