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:
Jun. 24, 2008
Filed:
Nov. 29, 2005
Method of and apparatus for eliminating quadrature-generated signals in magnetic cross-loop antennas
Applicants:
Paul Johanessen, Lexington, MA (US);
Andrie Grebnev, Bedford, MA (US);
Inventors:
Paul Johanessen, Lexington, MA (US);
Andrie Grebnev, Bedford, MA (US);
Assignee:
Megapulse, Inc., Billerica, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 1/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A technique for reducing radio frequency signal navigation errors in systems such as Loran-C and the like, comprising the use of an orthogonally crossed pair of antenna windings on a ferrite cross, tuned to the carrier radio frequency to generate from the received signals both in-phase and quadrature circulating current components, and providing for the eliminating only of the quadrature current components.
Johanessen, Paul. (2008). Method of and apparatus for eliminating quadrature-generated signals in magnetic cross-loop antennas (U.S. Patent No. 7391369). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7391369
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile