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:
Aug. 10, 2010

Filed:

Aug. 25, 2005
Applicant:

Yasuhiro Yamasaki, Tokyo, JP;

Inventor:

Yasuhiro Yamasaki, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

A data receiving portion receives data from a network. A filtering portion classifies the data received at the data receiving portion by flow. A condition monitoring portion monitors, for each flow, ACK-number information and SN-number information of the received data. A quality-determining portion determines whether or not a packet loss has occurred and the position of occurrences of packet losses, on the basis of information from the condition monitoring portion.


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