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:
Jul. 24, 1984
Filed:
Oct. 29, 1982
Applicant:
Inventor:
Uwe Krogmann, Uberlingen-Nussdorf, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
33324 ;
Abstract
By means of a two-axis, electrically restrained gyro with vertical spin axis, North direction is determined from the ratio of the horizontal components of the angular rate of the earth. The gyro is rotatable about a vertical axis into 0.degree.-, 90.degree.-, 180.degree.- and 270.degree.-positions. The signals thus obtained are stored. A signal processing circuit operating with various differences of these signals and ratios of such differences provides the North deviation unaffected by gyro drift and scale factor error.
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Krogmann, Uwe. (1984). Instrument for the automatic determination of north direction (U.S. Patent No. 4461089). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4461089
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile