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. 11, 2020

Filed:

Jun. 20, 2018
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventor:

Makoto Fujiwara, Kyoto, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 12/40 (2006.01); H04L 12/413 (2006.01);
U.S. Cl.
CPC ...
H04L 63/1425 (2013.01); H04L 12/40 (2013.01); H04L 12/40169 (2013.01); H04L 12/413 (2013.01); H04L 2012/40215 (2013.01); H04L 2012/40273 (2013.01);
Abstract

Provided is a fraudulent message detection device that detects a fraudulent message in a bus network and includes: a resynchronization detector that detects an edge of a signal on a bus in the bus network and determines whether to perform resynchronization, so as to adjust a sampling point in a one-bit period; a transmission and receiving control unit that obtains a first logical value and a second logical value in a one-bit period after the resynchronization detector determines to perform the resynchronization, the first logical value being a logical value at a sampling point used before the edge is detected, the second logical value being a logical value at a sampling point after the resynchronization is performed; a comparator that compares the first and second logical values; and a fraud detection processing unit that executes post-fraud-detection processing, when the first and second logical values do not coincide.


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