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:
Aug. 07, 2018
Filed:
Oct. 18, 2016
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Martin Bouda, Plano, TX (US);
FUJITSU LIMITED, Kawasaki, JP;
Abstract
Methods and systems are provided for monitoring a network link in an optical transport network. The method includes injecting a first level of added noise to the data stream at the receiver for a first period. The method further includes calculating a first bit error rate (BER) for the first period. The method also includes injecting a second level of added noise to the data stream at the receiver for a second period, the second level of added noise different than the first level of added noise, wherein the first and second periods do not overlap. The method further includes calculating a second BER for the second period. In addition, the method includes determining a characteristic of the network link based on the first BER and the second BER.