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. 14, 2017
Filed:
Mar. 09, 2016
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Inventors:
Yosuke Ogawa, Yokohama Kanagawa, JP;
Shigeo Imai, Chiba Chiba, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 15/06 (2006.01);
U.S. Cl.
CPC ...
G01R 15/06 (2013.01);
Abstract
An impedance measuring circuit has an amplifier connected to a target and to amplify an input AC voltage with a gain corresponding to an impedance in the target and to output the voltage, and a voltage level setting circuit to set a DC voltage level in an output node of the amplifier when a first capacitor is connected between one end of the target and an output node of the amplifier and a second capacitor is connected between another end of the target and a node with a voltage correlated with the input AC voltage.