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:
Apr. 15, 2008

Filed:

Sep. 26, 2003
Applicants:

Hiroaki Etoh, Kanagawa-ken, JP;

Kunikazu Yoda, Tokyo, JP;

Inventors:

Hiroaki Etoh, Kanagawa-ken, JP;

Kunikazu Yoda, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/30 (2006.01); G06F 15/173 (2006.01);
U.S. Cl.
CPC ...
Abstract

Systems, apparatus and methods to monitor communications conducted via a host computer placed under the management of security measures such as firewalls or routers' filtering capabilities. A communications monitoring system which includes a packet input means for connecting to predetermined points on a network via a network interface and receiving communications packets flowing at the points; and matching means for performing real-time matching between two packet streams composed of received communications packets each time a communications packet is received. If the two packet streams are highly similar, it is highly likely that an attack or intrusion is being made and an alert is issued.


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