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:
Feb. 16, 2021
Filed:
Aug. 20, 2018
Valeo Schalter Und Sensoren Gmbh, Bietigheim-Bissingen, DE;
Jean-Francois Bariant, Bietigheim-Bissingen, DE;
Mathieu Baicry, Bietigheim-Bissingen, DE;
Matthias Thomen, Ratingen, DE;
Valeo Schalter und Sensoren GmbH, Bietigheim-Bissingen, DE;
Abstract
The invention relates to a method for operating an ultrasonic sensor apparatus () for a motor vehicle (), in which a diaphragm of a first ultrasonic sensor () is excited to emit a first ultrasonic signal using a frequency-modulated first excitation signal () and a diaphragm of a second ultrasonic sensor () is excited to emit a second ultrasonic signal using a frequency-modulated second excitation signal, wherein the diaphragm of the first ultrasonic sensor () and the diaphragm of the second ultrasonic sensor () have the same resonant frequency (fR), wherein the first excitation signal () comprises a first frequency range (fa) and the second excitation signal comprises a second frequency range (fb) that differs from the first frequency range (fa), wherein a temporal profile of a maximum amplitude (Am) of the first excitation signal () and a temporal profile of a maximum amplitude (Am) of the second excitation signal are changed.