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:
Feb. 10, 2026
Filed:
Oct. 13, 2023
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Denso Corporation, Kariya, JP;
Shinnosuke Sugawara, Toyota, JP;
Tokuya Inagaki, Kariya, JP;
Shogo Watanabe, Kariya, JP;
Ryosuke Murakami, Kariya, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A communication system includes a relay device and a diagnosis target device. The relay device includes a port configured to connect a diagnostic tool. The diagnosis target device is connected to the relay device via a bus. The relay device determines whether a communication path of diagnostic data for diagnosing the diagnosis target device is correct when the relay deice has received the diagnostic data, the diagnostic data being data that is transferred between the relay device and the diagnostic tool. The relay device sends to the diagnosis target device a monitoring result including a determination result as to whether the communication path of the diagnostic data is correct.