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:
Jul. 01, 2025
Filed:
Sep. 10, 2020
Continental Automotive Gmbh, Hannover, DE;
Gerhard Dochow, Wetzlar, DE;
Joachim Perrevoort, Münster, DE;
Continental Automotive Technologies GmbH, Hannover, DE;
Abstract
A method for operating a functionally safe audio output system with a computing node with a simple certification and a complex computing node, the method comprising generating a code assigned to a warning in the computing node with a simple certification, transmitting the code to the complex computing node, generating, in a first computing process, an output signal having an acoustic watermark, transmitting the output signal to a second computing process independent of the first computing process, determining, in the second computing process independent of the first computing process, a code contained in the output signal, transmitting the code to the computing node with a simple certification, and verifying whether the audio output system is functionally safe on the basis of a comparison of the generated code with a code based on the received code.