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:
Sep. 29, 2015
Filed:
Nov. 08, 2011
Anatole M. Lokshin, Huntington Beach, CA (US);
Vitaly Kuzkin, Saint Petersburg, RU;
Nikolay Dvas, Saint Petersburg, RU;
Anatole M. Lokshin, Huntington Beach, CA (US);
Vitaly Kuzkin, Saint Petersburg, RU;
Nikolay Dvas, Saint Petersburg, RU;
AlpineReplay, Inc., Huntington Beach, CA (US);
Abstract
Embodiments of the present disclosure are directed to a method and apparatus for calibration of gyro sensors by using magnetic sensor measurements and background computation during normal product operation. In one embodiment, magnetic sensor measurements are used to adjust gyro gain by comparing measured magnetic vector orientation with its expected orientation computed from gyro integration. The background process constantly compares this discrepancy for various values of gyro gain and selects the one that minimizes such error on average. In one embodiment, device orientation obtained by gyro integration is improved by using magnetic sensor measurements.