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:
Apr. 07, 2026
Filed:
May. 30, 2022
Valeo Schalter Und Sensoren Gmbh, Bietigheim-Bissingen, DE;
Jean Francois Bariant, Bietigheim-Bissingen, DE;
Radhakrishna Chivukula, Bietigheim-Bissingen, DE;
Anto Joys Yesuadimai Michael, Bietigheim-Bissingen, DE;
VALEO SCHALTER UND SENSOREN GMBH, Bietigheim-Bissingen, DE;
Abstract
A method for operating an ultrasonic sensor is disclosed. The ultrasonic sensor includes a membrane and an exciter element for exciting the membrane and for detecting a vibration of the membrane. The method includes obtaining calibration data from a storage unit storing the calibration data. The calibration data includes information about a first frequency response of the ultrasonic sensor in a sending direction depending on a membrane excitation frequency at different membrane temperatures and information about a second frequency response of the ultrasonic sensor in a receiving direction depending on a membrane vibration frequency at different temperatures. The method also includes determining a current membrane temperature, determining a sensitivity of the ultrasonic sensor, and controlling an electric current provided to the exciter element and a gain of the ultrasonic sensor based on a difference between the determined sensitivity and a prestored sensitivity.