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:
Dec. 09, 2025
Filed:
Apr. 19, 2023
Valeo Schalter Und Sensoren Gmbh, Bietigheim-Bissingen, DE;
VALEO SCHALTER UND SENSOREN GMBH, Bietigheim-Bissingen, DE;
Abstract
A method for determining a state of a driver monitoring device includes generating a first image. The first image is based on an image of an interior illuminated by means of an illumination device. The method includes dividing the first image into multiple image sections. The method includes determining a maximum intensity of pixels of a first group of image sections of the first image and an average intensity of a second group of image sections of the first image and determining a difference in illumination of the first image by dividing the maximum intensity of the first group by the mean intensity of the second group. The method includes determining whether or not a diffuser is functional and properly arranged and activating or deactivating the illumination device for driver monitoring if the difference in illumination of the first image is smaller or greater than a lower threshold value.