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:
May. 20, 2003
Filed:
Dec. 13, 1999
Applicant:
Inventor:
Kazuhiro Ebara, Shiga-ken, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 9/04 ; H01L 4/108 ;
U.S. Cl.
CPC ...
G01P 9/04 ; H01L 4/108 ;
Abstract
A vibrating gyroscope includes: a vibrator having an driving electrode and two detecting electrodes; a first drive circuit for applying a first drive signal to the driving electrode; a second drive circuit for applying a second drive signal having an inverted phase of the drive signal, or an inverted phase of a detection signal detected from the two detecting electrodes, to the detecting electrodes; and a detection circuit for detecting the detected signal in correspondence with the rotational angular velocity from the two detecting electrodes.