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. 06, 2012
Filed:
Sep. 19, 2007
Taketsugu Yao, Tokyo, JP;
Taketsugu Yao, Tokyo, JP;
OKI Electric Industry Co., Ltd., Tokyo, JP;
Abstract
There is provided an unauthorized terminal inferring device () device that is connected to a plurality of communications terminal devices (IDi) by a multi-hop network. The device () includes a communications terminal information control portion () that controls identification information and key information for the communications terminal devices (IDi), a transmission portion () that transmits challenge information to the devices (IDi), a receiving portion () that receives from the devices (IDi) response information that corresponds to the challenge information, a response information verification portion () that verifies whether or not an authenticator that is contained in the response information is correct, and an unauthorized terminal device inferring processing portion () that, in a case where the verification result indicates that the response information is not legitimate, requests that each of the devices (IDi) retransmit received and generated information, then infers which communications terminal device performed the unauthorized behavior.