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. 23, 2017
Filed:
Aug. 26, 2013
Continental Automotive France, Toulouse, FR;
Continental Automotive Gmbh, Hannover, DE;
David Mirassou, Toulouse, FR;
CONTINTENTAL AUTOMOTIVE FRANCE, Toulouse, FR;
CONTINENTAL AUTOMOTIVE GMBH, Hannover, DE;
Abstract
A measurement amplifying circuit () for a piezo-electric sensor () positioned in an internal combustion engine supplying a signal to be measured, includes: a module () for generating a common mode voltage; a differential amplifier (); and a subtraction module (). The module () for generating a common mode voltage is to be connected to a wall () of the engine, the module () for generating a common mode voltage being suitable for supplying a common mode voltage signal (Vcm) reproducing the variations of an engine signal (Sb) received from the wall () of the engine.