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:
Apr. 02, 2019
Filed:
Aug. 26, 2015
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Jean Pierre Von Der Weid, Rio de Janeiro, BR;
Gustavo Castro Do Amaral, Rio de Janeiro, BR;
Diego Rodrigo Villafani Caballero, Rio de Janeiro, BR;
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL), Stockholm, SE;
Abstract
A method for monitoring an optical fiber link comprises generating a monitoring signal used for monitoring the optical fiber link, combining the generated monitoring signal with a data signal to be transmitted over the optical fiber link, detecting backscattering of the monitoring signal from the optical fiber link, detecting a change in characteristic of the detected backscattered monitoring signal, and determining, from the detected change in characteristic, at least one location along the optical fiber link where the monitoring signal is modified, and signal loss at this location.