Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-05-31
2009-12-22
Lee, Benjamin C (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S500000, C340S540000, C367S038000, C367S043000, C367S045000, C375S224000, C375S227000, C375S228000, C375S229000, C375S232000, C375S243000, C375S300000, C375S316000, C375S318000, C375S340000, C361S182000
Reexamination Certificate
active
07636051
ABSTRACT:
A statistical value update unit calculates the fluctuation of measurement data. A filtering processing unit extracts a normal white noise component from the fluctuation of the measurement data using an adaptive lattice filter. A statistical test unit determines whether or not the variance of the normal white noise component is out of a predetermined scope in reference distribution. A change decision unit detects a stationary change of the status of a target system based on a detection ratio of an outlier.
REFERENCES:
patent: 5602761 (1997-02-01), Spoerre et al.
patent: 2005-157579 (2005-06-01), None
patent: 2005-285040 (2005-10-01), None
Sanghoon Lee and Sungwoon Choi, Adaptive Process Monitoring Using Scale CUSUM for Serially Correlated Processes, 1997, Comuter ind. Engng vol. 33, Nos. 3-4, pp. 737-740, Dept. of Industrial Engineering, Kyung Won University Seong Nam, Korea.
Benjamin Friedlander, Lattice Filters for Adaptive Processing, Proceedings of the IEEE, vol. 70, No. 8, Aug. 1982.
Chugo Akira
Imai Satoshi
Nakamichi Koji
Ueno Hitoshi
Yamada Akiko
Fujitsu Limited
Fujitsu Patent Center
Lee Benjamin C
Yacob Sisay
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