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. 29, 2013
Filed:
May. 30, 2006
Applicant:
Xavier Hourne, Cugnaux, FR;
Inventor:
Xavier Hourne, Cugnaux, FR;
Assignee:
Valeo Securite Habitacle, Creteil, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01);
U.S. Cl.
CPC ...
G01R 27/2605 (2013.01);
Abstract
A device for detecting a variation in the capacitance of a variable capacitive structure, wherein the device generates voltage pulses, charges the variable capacitive structure using the voltage pulses, discharges the variable capacitive structure toward a reference capacitor, detects a voltage threshold across the terminals of the reference capacitor, determines a number of charges and/or discharges of the variable capacitive structure corresponding to the voltage threshold, and detects a variation in the number of charges and/or discharges with respect to a number of charges and/or discharges previously obtained.