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:
Mar. 08, 2022
Filed:
Dec. 18, 2020
Hitachi, Ltd., Tokyo, JP;
Mayuko Tanaka, Tokyo, JP;
HITACHI, LTD, Tokyo, JP;
Abstract
A communication monitoring apparatus holds a communication pair model and the number of communications of a communication pair generated during, before, and after a determination target period, calculates the number of model communications of the other of the pair during the determination target period from the communication pair model and the number of communications of one of the pair, compares a value based on a difference between the number of communications of the other of the pair and the number of model communication with a threshold value, and if an abnormality is determined to have possibly occurred in a communication of the communication pair during the determination target period, based on the number of communications of the communication pair during a total time, and on the communication pair model, determine whether the abnormality has occurred in the communication of the communication pair.