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:
Nov. 25, 2014
Filed:
Feb. 17, 2011
Applicants:
Joseph E. Sluz, Ellicott City, MD (US);
Juan C. Juarez, Windsor Mill, MD (US);
David W. Young, Clarksville, MD (US);
Inventors:
Joseph E. Sluz, Ellicott City, MD (US);
Juan C. Juarez, Windsor Mill, MD (US);
David W. Young, Clarksville, MD (US);
Assignee:
The Johns Hopkins University, Baltimore, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 10/06 (2006.01); H04B 10/67 (2013.01); H04B 10/2581 (2013.01);
U.S. Cl.
CPC ...
H04B 10/674 (2013.01); H04B 10/2581 (2013.01);
Abstract
To stabilize power to an optical multimode receiver a multimode variable optical attenuator is connected to the receiver with the attenuator's voltage being controlled using a feedback signal provided by an output detector, the signal being processed using a control algorithm based on proportional-integrate-differential theory.