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. 28, 2014
Filed:
Sep. 05, 2007
Applicants:
Michael B. Libeskind, Yardley, PA (US);
Dat D. Ngo, Howell, NJ (US);
Inventors:
Michael B. Libeskind, Yardley, PA (US);
Dat D. Ngo, Howell, NJ (US);
Assignee:
Alcatel Lucent, Boulogne-Billancourt, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/00 (2013.01); H04B 10/077 (2013.01);
U.S. Cl.
CPC ...
H04B 10/0775 (2013.01);
Abstract
An apparatus and method for deriving fiber characteristics between two nodes in an optical communication network are disclosed. A roundtrip time for a signal to travel between two nodes is measured by sending the signal via the optical supervisory channel from a first node to a second node, which is configured for loopback operation. Fiber characteristics can be calculated based on the measured roundtrip time.