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.

Date of Patent:
Nov. 28, 2023

Filed:

Nov. 05, 2019
Applicant:

Nippon Telegraph and Telephone Corporation, Tokyo, JP;

Inventors:

Yuta Ukon, Tokyo, JP;

Shuhei Yoshida, Tokyo, JP;

Shoko Oteru, Tokyo, JP;

Namiko Ikeda, Tokyo, JP;

Koyo Nitta, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 43/08 (2022.01); H04L 43/062 (2022.01); H04L 43/10 (2022.01); H04L 69/22 (2022.01);
U.S. Cl.
CPC ...
H04L 43/062 (2013.01); H04L 43/08 (2013.01); H04L 43/10 (2013.01); H04L 69/22 (2013.01);
Abstract

A state detection circuit compares a target connection with an immediate previous connection based on an identifier of an incoming packet and detects a post-transitional state of the target connection based on a control flag of the incoming packet and on a pre-transitional state of the target connection detected just before if the target connection is identical with the immediate previous connection; and a connection counting circuit increments or decrements the number of target connections only when the detected post-transitional state indicates a start or end of the target connection.


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