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:
May. 21, 2019
Filed:
Sep. 30, 2014
Applicant:
Freescale Semiconductor, Inc., Austin, TX (US);
Inventors:
Chad S. Dawson, Queen Creek, AZ (US);
John Wertz, Phoenix, AZ (US);
Assignee:
NXP USA, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01P 21/00 (2006.01); G01P 15/00 (2006.01);
U.S. Cl.
CPC ...
G01P 21/00 (2013.01); G01P 15/00 (2013.01);
Abstract
To calibrate an accelerometer, a rotating member is rotated over multiple periods, thereby causing the accelerometer attached to the rotating member to repeatedly turn over. A processor obtains acceleration measurements as the accelerometer turns and determines a set of local minima and maxima of the acceleration measurements. Based on these local minima and maxima, the processor determines a sensitivity of the accelerometer. The processor stores the sensitivity for use in adjusting subsequent accelerometer measurements, thus calibrating the accelerometer.