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:
Feb. 26, 2013
Filed:
Aug. 22, 2008
Kentaro Yamasaki, Tokyo, JP;
Kentaro Yamasaki, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
It is an object to provide a data logger which solves a problem in which data required to analyze a cause of occurrence of abnormality cannot be acquired. Temporary memorystores newer data among data sequentially outputted from measurerwherein the number of the newer data corresponds to a specific number of times. Managerrepeatedly calculates an index value indicative of stability of the data outputted from measurerbased on the data stored in temporary memoryat least until the index value satisfies a predetermined stability condition. Further, if manageraccepts an abnormal value trigger, managersequentially stores the data outputted from measurerin main memory. When the index value satisfying the stability condition is calculated by manager, managerstops saving the data in main memory