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:
Aug. 20, 2002
Filed:
Oct. 18, 1999
Applicant:
Inventors:
Lutz Eisenmann, Pascnbach, DE;
Robert Griessbach, Weyarn, DE;
Christian Marschner, Munich, DE;
Yan Lu, Freising, DE;
Assignee:
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B 1/326 ;
U.S. Cl.
CPC ...
G08B 1/326 ;
Abstract
In a method for capacitive object recognition in vehicles, two capacitive electrodes are charged with alternating voltage and the presence of an object is detected by the change in the capacitance in the capacitor. The two electrodes are charged sequentially and individually with alternating voltages. The alternating currents that result in the leads of the two electrodes are analyzed jointly.