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:
Apr. 07, 2015
Filed:
Dec. 19, 2008
Applicants:
Jean-michel Caron, Paris, FR;
Vincent Ragot, Paris, FR;
Inventors:
Jean-Michel Caron, Paris, FR;
Vincent Ragot, Paris, FR;
Assignee:
Sagem Defense Securite, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01P 15/00 (2006.01); G01L 9/12 (2006.01); G01C 19/5691 (2012.01); G01C 25/00 (2006.01);
U.S. Cl.
CPC ...
G01C 19/5691 (2013.01); G01C 25/005 (2013.01);
Abstract
A method of correcting the gain of a capacitive member having electrodes that are movable relative to each other including the steps of successively applying to one of the electrodes, reduced bias voltages having opposite signs and a common value below a threshold for which a remanent field generated by said reduced bias voltages can be measured, making corresponding measurements of the output signals from the capacitive member; taking an average, and correcting the gain of the capacitive member as a function of the measured output signal.