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:
Jan. 01, 2019
Filed:
Sep. 24, 2015
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Flavio Protasio Ribeiro, Bellevue, WA (US);
Anatoly Churikov, Henderson, NV (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Examples of arrays of magnetometers that can be used as or as part of an inertial measurement unit (IMU) are disclosed herein. Various methods for using such arrays in order to obtain highly precise and locationally unique data, which can be used to correct for drift effects, are also disclosed. In certain embodiments, the Jacobian matrix of the magnetic field is computed from the magnetometer measurements. This Jacobian matrix data can be used to generate a magnetic field map for a particular environment and/or to locate position, velocity, and acceleration of the IMU by referencing such a magnetic field map.