Error detection/correction and fault detection/recovery – Pulse or data error handling – Transmission facility testing
Reexamination Certificate
2006-05-16
2006-05-16
Decady, Albert (Department: 2138)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Transmission facility testing
C370S241100, C370S249000
Reexamination Certificate
active
07047459
ABSTRACT:
The present invention provides system and method of identifying a failure location in any datapath in a set of datapaths in a communication element, each datapath of the set of datapaths traversing from an ingress point through at least a first component to an egress point. In an embodiment, the method comprises: providing a diagnostic cell adapted to be inserted at a starting point upstream of the first component in the any datapath; providing at least a first diagnostic cell counter module adapted to be associated with a first location in the first component, the first diagnostic cell counter module adapted to recognize when the diagnostic cell passes the first location and adapted to track passage of the diagnostic cell past the first location; inserting the diagnostic cell into the any datapath at the starting point; and analyzing the diagnostic cell counter module to identify the failure location in the any datapath.
REFERENCES:
patent: 5710760 (1998-01-01), Moll
patent: 6141326 (2000-10-01), Minami
patent: 6442694 (2002-08-01), Bergman et al.
patent: 6597689 (2003-07-01), Chiu et al.
patent: 6700873 (2004-03-01), Sugaya et al.
Chuah John Tiong-Heng
Moffette Joseph
(Marks & Clerk)
Alcated Canada Inc.
De'cady Albert
Mitchell Richard J.
Tabone, Jr. John J.
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