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.

Date of Patent:
Jan. 03, 2017

Filed:

Nov. 05, 2013
Applicant:

Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);

Inventors:

Ahmed Mohamed Sayed Ahmed, Mequon, WI (US);

Brian J. Seibel, Grafton, WI (US);

Russel Kerkman, Milwaukee, WI (US);

Assignee:

Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/40 (2014.01); H02J 3/24 (2006.01); H02J 13/00 (2006.01); H02J 9/06 (2006.01);
U.S. Cl.
CPC ...
G01R 31/40 (2013.01); H02J 3/24 (2013.01); H02J 9/06 (2013.01); H02J 13/0006 (2013.01); Y02B 70/3291 (2013.01); Y02B 90/222 (2013.01); Y04S 20/12 (2013.01); Y04S 20/248 (2013.01);
Abstract

Described herein are methods, systems, and apparatuses for determining sag in a signal. In one example, a method of tracking sag in a signal includes, when in an initial state, monitoring for when the signal transitions to a sag state based at least on an output of a tracking filter. In response to the signal transitioning to the sag state, increasing a bandwidth of the tracking filter and, when in the sag state, monitoring for when the signal transitions to a recovering state. The method further includes, in response to the signal transitioning to the recovering state, decreasing the bandwidth of the tracking filter.


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