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:
Oct. 06, 2026

Filed:

Mar. 31, 2025
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Tsuyoshi Kobayashi, Tokyo, JP;

Koichi Furuya, Tokyo, JP;

Noriyuki Fukui, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/44 (2013.01);
U.S. Cl.
CPC ...
G06F 21/44 (2013.01); G06F 2221/2103 (2013.01);
Abstract

An authentication device includes: a challenge data generation unit to generate challenge data from a registered electromagnetic characteristic; an expected value generation unit to perform a comparison between the registered electromagnetic characteristic and the generated challenge data, and generate a response data expected value representing a result of the comparison; a challenge data transmission unit to transmit the generated challenge data to a response device; a response data reception unit to receive response data related to a second authentication target device from the response device; and a response data determination unit to perform a comparison between the generated response data expected value and the received response data, and determine authenticity of the second authentication target device, and the response device performs a comparison between an electromagnetic characteristic acquired from the second authentication target device and the transmitted challenge data, and generates a result of the comparison as the response data.


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