Patent Number: 6,310,911

Title: Method of detecting signal degradation fault conditions within SONET and SDH signals

Abstract: In a method of detecting signal degradation conditions in synchronous digital signals, the error monitors first detect the presence and/or absence of a particular bit error ratio by integrating received parity errors over time. Subsequently a monitor client reacts to notifications from bit error rate monitors that the state of the presence/absence of specific bit error ratios has changed to generate an alarm condition when appropriate.

Inventors: Burke; Dan (Nepean, CA), Jennings; Alan (Kanata, CA)

Assignee: Alcatel Canada Inc.

International Classification: H04J 3/14 (20060101); H04Q 11/04 (20060101); H04L 1/20 (20060101); H04B 017/00 ()

Expiration Date: 10/30/2018