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:
Dec. 22, 2015
Filed:
Mar. 20, 2012
Qiyue Zhang, Cupertino, CA (US);
Michael A. Horton, Mountain View, CA (US);
Ralph M. Kling, Sunnyvale, CA (US);
Semen Shtigluz, Fremont, CA (US);
Qiyue Zhang, Cupertino, CA (US);
Michael A. Horton, Mountain View, CA (US);
Ralph M. Kling, Sunnyvale, CA (US);
Semen Shtigluz, Fremont, CA (US);
Moog Inc., East Aurora, NY (US);
Abstract
A true north heading is determined by using gyroscopes of differing accuracy and orienting a gyroscope of a higher accuracy to a direction that is more sensitive to azimuth change (e.g., an east/west direction). A gyroscope with a lower accuracy is placed perpendicular to the gyroscope with a higher accuracy and can be oriented towards a north or south direction. The gyroscopes may be placed on a rotatable platform to properly orient the gyroscopes. The higher-accuracy gyroscope may be implemented by using multiple gyroscopes oriented in the same direction.