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:
Oct. 13, 2020
Filed:
Oct. 30, 2018
Facebook Technologies, Llc, Menlo Park, CA (US);
Yi Zhao, Redmond, WA (US);
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
Multiple magnetic field generators have predetermined positions relative to a wearable device, such as a glove, and emit magnetic fields. Additionally, one or more magnetic field sensors are positioned on locations of the wearable device. A magnetic field sensor generates an output signal based on magnetic fields emitted by the magnetic field generator and detected by the magnetic field sensor. From the output signal and the predetermined positions of the magnetic field generators relative to the wearable device, a position and an orientation of the magnetic field sensor in a global coordinate system is determined. In some embodiments, a trained machine learning model is employed in conjunction with trilateration to obtain the position and orientation of the magnetic field sensor from its output signal.