The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 22, 2009
Filed:
May. 31, 2006
Satoshi Imai, Kawasaki, JP;
Akiko Yamada, Kawasaki, JP;
Hitoshi Yamada, Tokyo, JP;
Hitoshi Ueno, Kawasaki, JP;
Koji Nakamichi, Kawasaki, JP;
Akira Chugo, Kawasaki, JP;
Satoshi Imai, Kawasaki, JP;
Akiko Yamada, Kawasaki, JP;
Hitoshi Yamada, Tokyo, JP;
Hitoshi Ueno, Kawasaki, JP;
Koji Nakamichi, Kawasaki, JP;
Akira Chugo, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
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.