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:
Feb. 19, 2008
Filed:
Oct. 16, 2003
Martin Huck, Möglingen, DE;
Dieter Beller, Korntal, DE;
Stefan Ansorge, Ohmden, DE;
Alcatel, Paris, FR;
Abstract
Failures are localized through the use of a Tandem Connection along a segment of a transmission path (P) to be monitored, non-intrusive intermediate Tandem Connection monitors (M), and temporary Tandem Connection sources created along the path segment in the case of a failure (F) in order to forward information about the fault location at least in downstream direction but preferably also in upstream direction. In particular, a failure adjacent network element (N) detects the failure and activates a temporary tandem connection source function (TS, TS). This function creates a valid tandem connection signal and insert therein a failed link identifier (TTI). The network element (N) terminating the tandem connection generates an alarm report including the failed link as indicated by the failed link identifier.