Method of detecting signal degradation fault conditions within SONET and SDH signals
February 11, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesDigital code word detection Continuous on-line link error rate detector utilizing the frame bit error rate Digital audio data muting system and method Fast communication link bit error rate estimator Apparatus and method for alerting computer users in a wireless LAN of a service area transition Programmable jump window for sonet compliant bit error monitoring Communication system with link margin control and method Apparatus and method for suppressing protection switching in a digital communication system in the event of an error burst Apparatus and method employing a window reset for excessive bit error rate alarm detection and clearing Bit error rate detection system InventorsAssigneeApplicationNo. 021833 filed on 02/11/1998US Classes:375/224, TESTING370/241, DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION)370/242, Fault detection375/227, Signal noise375/228, With indicator714/48, Error detection or notification714/704Error count or rateExaminersPrimary: Chin, StephenAssistant: Ha, Dac V. Attorney, Agent or FirmInternational ClassH04B 017/00Foreign Application Priority Data1997-02-11 CAAbstractIn 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.Other References
Field of SearchTESTINGSignal noise With indicator Error detection or notification State error (i.e., content of instruction, data, or message) Control flow state sequence monitored (e.g., watchdog processor for control-flow checking) Error checking code Error count or rate Transmission facility testing DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION) Fault detection Determination of communication parameters | |
