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. 13, 2016
Filed:
Mar. 12, 2014
Applicant:
Northrop Grumman Litef Gmbh, Freiburg, DE;
Inventors:
Guenter Spahlinger, Stuttgart, DE;
Olaf Deppe-Reibold, Emmendingen, DE;
Assignee:
Northrop Grumman LITEF GmbH, , DE;
Primary Examiner:
Int. Cl.
CPC ...
G01C 19/72 (2006.01);
U.S. Cl.
CPC ...
G01C 19/721 (2013.01); G01C 19/726 (2013.01);
Abstract
A fiber-optic Sagnac interferometer in a rotation rate sensor comprises a multifunctional integrated optical chip (MIOC) with a MIOC transfer function. A digital filter is connected upstream to the multi-functional integrated optical chip, whose filter transfer function corresponds basically to the inverse MIOC transfer function such that the MIOC transfer function is compensated by the filter transfer function. Corresponding coefficients of the filter transfer function may be determined in a main control loop.