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, 2023
Filed:
Jul. 12, 2022
Industrial Technology Research Institute, Hsinchu, TW;
Lu-Po Liao, Taoyuan, TW;
Chin-Fu Kuo, Tainan, TW;
Liang-Ying Liu, Zhubei, TW;
Yu-Sheng Lin, Tainan, TW;
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu, TW;
Abstract
The differential capacitor device includes a differential capacitor sensing component, a calibration capacitor assembly and two output terminals. The differential capacitive sensing element has a common point terminal, a first non-common point terminal and a second non-common point terminal, and the common point terminal is configured to receive an input voltage. The calibration capacitor assembly has a first calibration capacitor and a second calibration capacitor, one terminal of the calibration capacitor assembly is coupled to the first non-common point terminal and the second non-common point terminal, and the other terminal of the calibration capacitor assembly is configured to receive a first calibration voltage and a second calibration voltage. The two output terminals are respectively coupled to the first non-common point terminal and the second non-common point terminal to output a first signal and a second signal.