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. 09, 2013
Filed:
Apr. 21, 2010
Peter Van Gastel, Solingen, DE;
Iko Lindic, Essen, DE;
Peter Van Gastel, Solingen, DE;
Iko Lindic, Essen, DE;
Huf Hulsbeck & Furst GmbH & Co. KG, Velbert, DE;
Abstract
A solution for sensor electronics provided in a door handle of a vehicle with a sensor control circuit () that is provided on a circuit board () and with a sensor electrode () of a capacitive sensor for detection of the approach of an object to the door handle connected to the sensor control circuit through which the sensitivity is improved, interference is decreased, and a compact structure is achieved. This task is solved by sensor electronics with a ground-metallization plane having a ground potential and a shielding electrode provided between the sensor electrode () and the ground-metallization plane, whereby the circuit board () has at least four metallization planes () insulated from each other by insulating layers (), whereby a first metallization plane () is provided on an upper side () of circuit board () including wiring connections between the components of the sensor control circuit (), a second metallization plane () that is the ground-metallization plane, a third metallization plane () that includes the shielding electrode, and a fourth metallization plane () that includes the sensor electrode () so that the wiring connections of the components of the sensor control circuit () are provided on one side of the ground-metallization plane and the shielding electrode and the sensor electrode () on the other side of the ground-metallization plane.