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:
Dec. 28, 2021
Filed:
Mar. 22, 2019
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Hideo Haneda, Matsumoto, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 19/5776 (2012.01); G01C 19/56 (2012.01); H01L 41/113 (2006.01); H03F 3/45 (2006.01); H03M 1/06 (2006.01); H03M 1/08 (2006.01);
U.S. Cl.
CPC ...
G01C 19/5776 (2013.01); H01L 41/1132 (2013.01); H03F 3/45076 (2013.01); H03F 3/45475 (2013.01); H03M 1/0624 (2013.01); H03M 1/08 (2013.01); H03F 2200/129 (2013.01); H03F 2203/45116 (2013.01); H03F 2203/45512 (2013.01); H03F 2203/45526 (2013.01);
Abstract
A circuit device includes a detection signal terminal to which a detection signal from a vibrator is input, a digital signal terminal that performs at least one of an input and an output of a digital signal, a detection circuit, and a signal generation circuit that generates a noise reduction signal based on the digital signal. The detection circuit includes an amplification circuit that amplifies the detection signal. The amplification circuit performs addition processing of a signal obtained by amplifying the detection signal and the noise reduction signal.