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:
Sep. 06, 2022
Filed:
Sep. 06, 2017
Mitsubishi Electric Corporation, Tokyo, JP;
Yuta Atobe, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A comparison unit () compares a measurement value, which is one of changes over time in a voltage value of a bus line (), distance transition of the voltage value, changes over time in an impedance value of the bus line (), and distance transition of the impedance value that have been measured, with a normal value, which is one of changes over time in a voltage value of the bus line (), distance transition of the voltage value, changes over time in an impedance value of the bus line (), and distance transition of the impedance value in a normal state, and extracts a difference between the measurement value and the normal value. An unauthorized connection determination unit () evaluates the difference between the measurement value and the normal value extracted by the comparison unit (), so as to determine whether an unauthorized device is connected to the bus line ().