Patents by Inventor Matthias Thomen

Matthias Thomen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for operating an ultrasonic sensor apparatus for a motor vehicle with adaptation of a temporal profile of an amplitude in frequency-modulated excitation signals
    Patent number: 10921445
    Abstract: The invention relates to a method for operating an ultrasonic sensor apparatus (3) for a motor vehicle (1), in which a diaphragm of a first ultrasonic sensor (4a) is excited to emit a first ultrasonic signal using a frequency-modulated first excitation signal (10a) and a diaphragm of a second ultrasonic sensor (4b) is excited to emit a second ultrasonic signal using a frequency-modulated second excitation signal, wherein the diaphragm of the first ultrasonic sensor (4a) and the diaphragm of the second ultrasonic sensor (4b) have the same resonant frequency (fR), wherein the first excitation signal (10a) 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 (10a) and a temporal profile of a maximum amplitude (Am) of the second excitation signal are changed.
    Type: Grant
    Filed: August 20, 2018
    Date of Patent: February 16, 2021
    Assignee: Valeo Schalter und Sensoren GmbH
    Inventors: Jean-Francois Bariant, Mathieu Baicry, Matthias Thomen
  • Method for operating an ultrasonic sensor apparatus for a motor vehicle with adaptation of a temporal profile of an amplitude in frequency-modulated excitation signals
    Publication number: 20190056495
    Abstract: The invention relates to a method for operating an ultrasonic sensor apparatus (3) for a motor vehicle (1), in which a diaphragm of a first ultrasonic sensor (4a) is excited to emit a first ultrasonic signal using a frequency-modulated first excitation signal (10a) and a diaphragm of a second ultrasonic sensor (4b) is excited to emit a second ultrasonic signal using a frequency-modulated second excitation signal, wherein the diaphragm of the first ultrasonic sensor (4a) and the diaphragm of the second ultrasonic sensor (4b) have the same resonant frequency (fR), wherein the first excitation signal (10a) 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 (10a) and a temporal profile of a maximum amplitude (Am) of the second excitation signal are changed.
    Type: Application
    Filed: August 20, 2018
    Publication date: February 21, 2019
    Applicant: VALEO Schalter und Sensoren GmbH
    Inventors: Jean-Francois Bariant, Mathieu Baicry, Matthias Thomen