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. 20, 2022

Filed:

Jul. 22, 2020
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventor:

Hiroki Koga, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/327 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3278 (2013.01);
Abstract

An input device () is connectable to a switch () to receive a state of the switch () input as a voltage corresponding to the state. The input device () includes an output circuit () to output a first voltage or a second voltage different from the first voltage, an input circuit () to receive the voltage input from the output circuit () via the switch () in a closed state and output input signals () corresponding to the input voltage, a diagnoser () to determine whether the input signals change in response to switching of the voltage from the output circuit () to the second voltage, and a generator () to generate a state signal () indicating the state of the switch () based on the input signals (). The second voltage differs from a reference voltage input to the input circuit () while the switch () is open.


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