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:
Oct. 21, 2008
Filed:
Apr. 13, 2006
David J. Simons, Modesto, CA (US);
Charles R. Carrigan, Tracy, CA (US);
Philip E. Harben, Livermore, CA (US);
Barry A. Kirkendall, Golden, CO (US);
Craig A. Schultz, Danville, CA (US);
David J. Simons, Modesto, CA (US);
Charles R. Carrigan, Tracy, CA (US);
Philip E. Harben, Livermore, CA (US);
Barry A. Kirkendall, Golden, CO (US);
Craig A. Schultz, Danville, CA (US);
Lawrence Livermore National Security, LLC, Livermore, CA (US);
Abstract
A method and apparatus is utilized to determine the bearing and/or location of sources, such as, alternating current (A.C.) generators and loads, power lines, transformers and/or radio-frequency (RF) transmitters, emitting electromagnetic-wave energy for which a Poynting-Vector can be defined. When both a source and field sensors (electric and magnetic) are static, a bearing to the electromagnetic source can be obtained. If a single set of electric (E) and magnetic (B) sensors are in motion, multiple measurements permit location of the source. The method can be extended to networks of sensors allowing determination of the location of both stationary and moving sources.