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:
Jan. 29, 2019
Filed:
Jul. 14, 2016
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Tsuyoshi Okami, Hamamatsu, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu, JP;
Abstract
A capacitance-to-voltage conversion circuit including a variable capacitance element, an integration circuit, and first and second sample and hold circuits. Capacitance value of the variable capacitance element varies depending on a physical quantity. The integration circuit outputs a voltage as a result of integration. The first sample and hold circuit samples and holds the voltage. The second sample and hold circuit samples and holds the sampled voltage and performs a simultaneous sampling operation in synchronism with the first sample and hold circuit at the same period as at least an initial sampling period. The second sample and hold circuit performs a sampling operation at a rear-end period in a sampling period of the first sample and hold circuit other than the sampling period.