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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.:

US 9344189 B1

PDFFull Text
Expired
Date of Patent:
May. 17, 2016

Filed:

Mar. 20, 2012

System, a wavelength isolator and methods therein for supervision of a passive optical network

Applicants:

Giancarlo Vilela DE Faria, Rio de Janeiro, BR;

Guilherme Penello Temporao, Rio de Janeiro, BR;

Jean Pierre Von Der Weid, Rio de Janeiro, BR;

Inventors:

Giancarlo Vilela de Faria, Rio de Janeiro, BR;

Guilherme Penello Temporao, Rio de Janeiro, BR;

Jean Pierre Von der Weid, Rio de Janeiro, BR;

Assignee:

Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;

Attorney:

Myers Bigel & Sibley, P.A.

Primary Examiner:

Dzung Tran

Int. Cl.
CPC ...
H04B 10/08 (2006.01); H04B 10/071 (2013.01); H04B 10/272 (2013.01); G01M 11/00 (2006.01);
U.S. Cl.
CPC ...
H04B 10/071 (2013.01); G01M 11/3127 (2013.01); G01M 11/3136 (2013.01); H04B 10/272 (2013.01); H04Q 2213/1301 (2013.01);
Abstract

A system for supervision of a passive optical network includes an OTDR device, generating N+1 OTDR signals of wavelengths λ-λ, and transmitting the signals towards ONUs. The system includes a splitter having N output branches. An input of the splitter is connected to the output of the OTDR device and the output branches of the splitter are indirectly connected to the ONUs. The splitter splits the OTDR signals and forwards them towards the ONUs. The system includes a wavelength isolator having inputs connected to the splitter output branches. The wavelength isolator isolates, on individual inputs, one predetermined wavelength of the received OTDR signals per individual input, where two inputs of the wavelength isolator do not isolate the same wavelength, and forwards, from each of the inputs of the wavelength isolator, the OTDR signals to associated outputs towards the ONUs connected to the wavelength isolator by individual fiber links.

Find Patent Forward Citations

Vilela de Faria, Giancarlo. (2016). System, a wavelength isolator and methods therein for supervision of a passive optical network (U.S. Patent No. 9344189). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9344189

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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