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:
Mar. 26, 2013
Filed:
Oct. 15, 2010
Tomoatsu Tanahashi, Tokyo, JP;
Yoshiro Yamaha, Tokyo, JP;
Tomoatsu Tanahashi, Tokyo, JP;
Yoshiro Yamaha, Tokyo, JP;
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Abstract
There is provided a two-wire transmitter capable of obtaining a signal reflecting a continuous change in a sensor signal, and in addition, facilitating a configuration or processing in a subsequent stage. The two-wire transmitter that outputs an analog voltage signal Vbased upon a sensor signal Vto a transmission line Nincludes: an intermediate potential generation circuit () for generating an intermediate potential between the transmission line Nand a transmission line N; an operational amplifier () to which the sensor signal Vand a feedback signal Vare supplied; and a current source () for generating a current Iflowing from the transmission line Nto the transmission line N, based upon a control signal output from the operational amplifier (). In this situation, the control signal controls the operational amplifier () to equalize the sensor signal Vand the feedback signal V