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:
Apr. 23, 2019
Filed:
Jun. 21, 2017
Applicant:
Hitachi, Ltd., Tokyo, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/24 (2006.01); H03K 17/975 (2006.01); G01D 3/02 (2006.01);
U.S. Cl.
CPC ...
G01D 5/24 (2013.01); H03K 17/975 (2013.01); G01D 3/02 (2013.01);
Abstract
A CV conversion amplifier is provided that can secure a sufficient capacitance-to-voltage conversion gain and a sufficient amplitude range of an output voltage with a small consumption current. A capacitive sensor using the CV conversion amplifier is provided with low electric power, low noise, and a wide tolerance of input signals. The CV conversion amplifier accepts outputs, as inputs, from a first capacitance and a second capacitance whose capacitance is changed depending on a physical quantity and converts a capacitance value into a voltage.
Oshima, Takashi. (2019). Cv conversion amplifier and capacitive sensor (U.S. Patent No. 10267655). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10267655
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile