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. 28, 2017
Filed:
Nov. 05, 2014
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Katsuhiko Maki, Chino, JP;
Takashi Nomiya, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 19/56 (2012.01); G01C 19/00 (2013.01); G01C 19/5614 (2012.01); G01C 19/5776 (2012.01);
U.S. Cl.
CPC ...
G01C 19/5614 (2013.01); G01C 19/5776 (2013.01);
Abstract
A detection device includes: a drive circuit which receives a feedback signal from a physical quantity transducer and drives the physical quantity transducer; a detection circuit which receives a detection signal from the physical quantity transducer and detects a desired signal; and a control unit which controls switching on/off of an AGC loop in the drive circuit. The drive circuit outputs a drive signal based on a control voltage that is set by the AGC loop in an on-period of the AGC loop to the physical quantity transducer and thus drives the physical quantity transducer in an off-period of the AGC loop.