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. 29, 2014
Filed:
Jun. 05, 2009
Jean-marcel Aubry, Bourogne, FR;
Jean-Marcel Aubry, Bourogne, FR;
Faurecia Bloc Avant, Nanterre, FR;
Abstract
This device () allows the detection of the presence of an object in a detection zone by measuring a variation in capacitance brought about by the presence of the object. It includes an element () for emitting an electric field, an element () for receiving an electric field, and elements for measuring the coupling capacitance between the emission element () and the reception element (), the emission element () emitting an electrical signal received by the reception element () so that a coupling capacitance of a predetermined value is established between the emission element () and the reception element () when no object is present in the detection zone, a variation in the coupling capacitance indicating the displacement of an object in the detection zone and the establishment of a capacitance of a different value from the predetermined value indicating the presence of a static object.