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:
Sep. 16, 2025

Filed:

Apr. 24, 2023
Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventors:

Daisuke Saito, Tokyo, JP;

Yuki Hirono, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/40 (2022.01); H04L 67/12 (2022.01);
U.S. Cl.
CPC ...
H04L 63/1416 (2013.01); H04L 67/12 (2013.01);
Abstract

An illegal signal detection apparatus for detecting input of an illegal signal to a communication network for which a signal is expected to be input at a predetermined cycle, the illegal signal detection apparatus including: a measuring unit for measuring, in time series, a time interval among a plurality of continuous signals input to the communication network; and a determination unit for judging, if a time interval between a first signal and a second signal that should be transmitted at the cycle is longer than the cycle, and a signal interval between the second signal and a signal that is input immediately before is equal to or smaller than a predetermined interval, that a competition has occurred when transmitting the second signal to determine that the second signal is an arbitrated normal signal.


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