Error detection/correction and fault detection/recovery – Pulse or data error handling – Error count or rate
Reexamination Certificate
2005-07-05
2005-07-05
Dildine, R. Stephen (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Error count or rate
C398S003000, C398S005000, C398S027000, C714S708000, C714S712000
Reexamination Certificate
active
06915463
ABSTRACT:
Methods and network nodes are provided which are adapted to perform protection switching on the basis of raw signal quality information, such as raw BER information, in a manner which instigates the protection switching before an actual failure has occurred. In some embodiments, these methods leverage forward error correction and uncorrected BER to effect traffic redirection before faults are observed at layer2and above. This is as opposed to the method of switching layer2traffic in response to bitstream characteristics observed at that layer.
REFERENCES:
patent: 4677619 (1987-06-01), Kawai
patent: 5587996 (1996-12-01), Mizuno
patent: 5627837 (1997-05-01), Gillett
patent: 5764651 (1998-06-01), Bullock et al.
patent: 6141532 (2000-10-01), Mizuike et al.
patent: 6295614 (2001-09-01), Peters et al.
patent: 6570682 (2003-05-01), Robinson et al.
patent: 889601 (1999-01-01), None
patent: 1083711 (2000-08-01), None
“Viterbi Decoding Algorithm for Convolutional Codes with Repeat Request” by Hirosuke Yamamoto et al.; IEEE Transactions on Information Theory, vol. IT-26 No. 26. Sep. 1980 pp 540-547.
“Monitoring Voice over IP Service Quality” by Dr. Alan Clark; Telchemy Inc., Suwanee, GA copyright 2001 URL: http://www.telchemy.com/conferences/2001/supernet.pdf.
“4-month Astrological Forecast” by Madam Lulu; Apr. 24, 1997; URL: https://mmm707.vwh1.net/madam4/psy-ast5a.htm.
“Anticipations and Hopes for the Immediate Future” by Alfred Russel Wallace; The Clarion (London) Jan. 1, 1904 p. 1 URL: http://www.wku.edu/˜smithch/wallace/S610.htm.
Carpini Walter Joseph
Donnelly Victoria
Johnsen Hans Frederick
Vieregge Richard Charles
Dildine R. Stephen
Donnelly Victoria
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