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:
Feb. 28, 2017
Filed:
Aug. 23, 2013
Applicant:
Peter Q. Oakley, Langley, WA (US);
Inventor:
Peter Q. Oakley, Langley, WA (US);
Assignee:
Fluke Corporation, Everett, WA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 3/04 (2006.01); G01S 3/22 (2006.01); H01Q 11/08 (2006.01); H01Q 21/08 (2006.01); H01P 5/22 (2006.01);
U.S. Cl.
CPC ...
G01S 3/043 (2013.01); G01S 3/22 (2013.01); H01P 5/227 (2013.01); H01Q 11/08 (2013.01); H01Q 21/08 (2013.01);
Abstract
At least two input signals, each characterizing a radio signal having a radio frequency (RF), are received. The input signals are converted into at least three output signals. The output signals have a unique combination of corresponding magnitudes for each RF phase difference between the input signals. A set of magnitudes corresponding to the output signals is measured using a mobile measuring device. An RF phase angle value is determined based the measured set of magnitudes. The RF phase angle value is converted into an angle value indicative of the direction of arrival of the radio signal.