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.

Date of Patent:
Jul. 02, 2019

Filed:

Mar. 05, 2014
Applicant:

Trusted Positioning Inc., Calgary, CA;

Inventors:

Ahmed Wahdan, Calgary, CA;

Jacques Georgy, Calgary, CA;

Walid Abdelfatah, Calgary, CA;

Aboelmagd Noureldin, Calgary, CA;

Assignee:

InvenSense, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 25/00 (2006.01); G01C 17/02 (2006.01); G01C 17/38 (2006.01);
U.S. Cl.
CPC ...
G01C 25/00 (2013.01); G01C 17/02 (2013.01); G01C 17/38 (2013.01);
Abstract

A method and apparatus for fast magnetometer calibration with little space coverage is described herein. The present method and apparatus is capable of performing both 2-dimensional (2D) and 3-dimensional (3D) calibration for a magnetometer (magnetic sensor) and calculating calibration parameters. The present method and apparatus does not need the user to be involved in the calibration process and there are no required specific movements that the user should perform. The present method and apparatus performs magnetometer calibration in 2D or 3D depending on the natural device movements whatever the application that the magnetometer is used in.


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