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:
Mar. 23, 2021
Filed:
Apr. 26, 2016
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Abstract
In an inertial sensor that includes an angular rate detection circuit having a structure synchronized with a resonant frequency of an angular rate detection element, an object thereof is to realize an angle output having high accuracy with less integration error in an integration circuit for detecting an angle. The inertial sensor includes an angular rate detection element chip Cthat has a mechanical structure for angular rate detection; and a signal processing LSI chip Cthat is angular rate detection circuit for detecting an angular rate from the angular rate detection element chip C. The signal processing LSI chip Ccalculates an angle by sampling a signal obtained from the angular rate detection element chip Cat a discrete time synchronized with a drive frequency of the angular rate detection element chip C