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:
Jul. 13, 1999
Filed:
Nov. 21, 1996
Kazuhiro Ebara, Toyama, JP;
Katsumi Fujimoto, Toyama-ken, JP;
Abstract
A vibration gyroscope includes a vibrator. The vibrator has a vibration member formed in a regular triangular prism shape. On side faces of the vibration member, three piezoelectric elements are formed, respectively. Two of the piezoelectric elements are connected to the input terminal of an oscillation circuit through resistors which serve as the loads of the two piezoelectric elements, respectively. The output terminal of the oscillation circuit is connected to the other piezoelectric element. The former piezoelectric elements are also connected to the non-inverting input terminal and the inverting input terminal of a differential amplifier circuit, respectively. By changing the impedances of the resistors, the characteristics of the vibration gyroscope is adjusted.