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:
Oct. 28, 2008
Filed:
Jan. 19, 2005
Shoji Yokoi, Nagoya, JP;
Yoshihiro Kobayashi, Komagane, JP;
Masayuki Takahashi, Nasushiobara, JP;
NGK Insulators, Ltd., Nagoya, JP;
Seiko Epson Corporation, Shinjuku-Ku, JP;
Seiko NPC Corporation, Chuo-Ku, JP;
Abstract
It is provided a system for measuring a physical quantity based on a detection signal using a vibrator, a self-oscillating circuitA oscillating a driving vibration in the vibratorand a detection circuit for outputting a detection signal from the vibrator. The self-oscillating circuitA comprises a current-voltage converterand a low pass filter. The detection circuit comprises a charge amplifier circuit amplifying an output signal from the vibrator, and the current-voltage converter and the charge amplifier circuit are formed in a monolithic IC.