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:
Oct. 14, 2025
Filed:
Mar. 01, 2023
Applicant:
Yokogawa Electric Corporation, Tokyo, JP;
Inventor:
Youichi Iwano, Tokyo, JP;
Assignee:
Yokogawa Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08C 19/02 (2006.01); G01R 19/00 (2006.01); G08C 19/08 (2006.01); H04B 3/54 (2006.01); G08C 19/00 (2006.01);
U.S. Cl.
CPC ...
G08C 19/02 (2013.01); G01R 19/0038 (2013.01); G08C 19/08 (2013.01); H04B 3/548 (2013.01); G08C 19/00 (2013.01);
Abstract
There is provided a two-wire transmitter that is connected to an external circuit via two transmission lines and that operates by using an input voltage and a current signal supplied from the external circuit, the two-wire transmitter including: a constant current circuit that controls the current signal in accordance with a detection result from a sensor; and a shunt regulator circuit that controls a circuit voltage in accordance with the input voltage, in which the shunt regulator circuit controls the circuit voltage such that the circuit voltage increases as the input voltage increases.