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:
Nov. 12, 2024
Filed:
Nov. 15, 2023
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Yosuke Ohashi, Aichi, JP;
Masateru Furuta, Aichi, JP;
KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO, Aichi, JP;
Abstract
Provided is a communication system including: a first device configured to transmit encrypted information that is encrypted by using a first encryption key; and a second device configured to execute a predetermined process based on the encrypted information obtained from the first device, and a second encryption key that is common to the first encryption key. The first device includes a first change section configured to change the first encryption key in the case where a first condition is satisfied. The second device includes a second change section configured to change the second encryption key in the case where a second condition is satisfied, the second condition being common to the first condition.