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:
May. 24, 2016
Filed:
Oct. 19, 2011
Applicants:
Zhiying Zhang, Ontario, CA;
Ilia Voloh, Ontario, CA;
Jorge Eduardo Cardenas Medina, Guadalajara, ES;
Inventors:
Zhiying Zhang, Ontario, CA;
Ilia Voloh, Ontario, CA;
Jorge Eduardo Cardenas Medina, Guadalajara, ES;
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 15/00 (2006.01); G01R 21/00 (2006.01); H02H 7/28 (2006.01); H02H 3/04 (2006.01);
U.S. Cl.
CPC ...
H02H 7/28 (2013.01); H02H 3/046 (2013.01); H02H 3/048 (2013.01);
Abstract
A device includes interface circuitry. The interface circuitry receives first input signals related to measurements of characteristics of electricity passing through a first power line. The device includes filtering circuitry that filters the first input signals to generate filtered data. The device also includes a processor that estimates an oscillation frequency of the filtered data via a time-domain frequency estimation method.