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:
Nov. 22, 2022
Filed:
Oct. 25, 2018
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Takanori Iwai, Tokyo, JP;
Anan Sawabe, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 41/142 (2022.01); H04L 1/00 (2006.01); H04L 43/08 (2022.01); H04L 47/24 (2022.01); G16Y 10/75 (2020.01);
U.S. Cl.
CPC ...
H04L 41/142 (2013.01); H04L 1/002 (2013.01); H04L 43/08 (2013.01); H04L 47/24 (2013.01); G16Y 10/75 (2020.01);
Abstract
A traffic analysis apparatus includes: a first means that estimates a state sequence from time-series data of communication traffic based on a hidden Markov model, and groups, into one group, a plurality of patterns with resembling state transitions in the state sequence to perform extraction of a state sequence, with taking the plurality of patterns grouped into one group as one state; and a second means that determines an application state corresponding to the time-series data based on the state sequence extracted by the first means and predetermined application characteristics.