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:
Apr. 02, 2024

Filed:

Aug. 15, 2022
Applicant:

Techmah Medical Llc, Knoxville, TN (US);

Inventor:

Mohamed R. Mahfouz, Knoxville, TN (US);

Assignee:

TECHMAH MEDICAL LLC, Knoxville, TN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 35/00 (2006.01); A61B 34/10 (2016.01); A61B 34/20 (2016.01); G01C 17/38 (2006.01); G01C 21/16 (2006.01); G01C 25/00 (2006.01); G01P 21/00 (2006.01); A61B 5/00 (2006.01); A61B 5/06 (2006.01); A61B 17/00 (2006.01);
U.S. Cl.
CPC ...
G01R 35/005 (2013.01); A61B 34/10 (2016.02); A61B 34/20 (2016.02); G01C 17/38 (2013.01); G01C 21/185 (2020.08); G01C 25/005 (2013.01); G01P 21/00 (2013.01); A61B 5/065 (2013.01); A61B 5/7242 (2013.01); A61B 2017/00725 (2013.01); A61B 2034/102 (2016.02); A61B 2034/105 (2016.02); A61B 2034/108 (2016.02); A61B 2034/2048 (2016.02); A61B 2560/0223 (2013.01); A61B 2562/0219 (2013.01);
Abstract

A method of calibrating an inertial measurement unit, the method comprising: (a) collecting data from the inertial measurement unit while stationary as a first step; (b) collecting data from the inertial measurement unit while repositioning the inertial measurement unit around three orthogonal axes of the inertial measurement unit as a second step; (c) calibrating a plurality of gyroscopes using the data collected during the first step and the second step; (d) calibrating a plurality of magnetometers using the data collected during the first step and the second step; (e) calibrating a plurality of accelerometers using the data collected during the first step and the second step; (f) where calibrating the plurality of magnetometers includes extracting parameters for distortion detection and using the extracted parameters to determine if magnetic distortion is present within a local field of the inertial measurement unit.


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Mahfouz, Mohamed. (2024). Imu calibration (U.S. Patent No. 11946995). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11946995

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