US 12,337,687 B2
Audio alert generation method and apparatus
Temujin Gautama, Boutersem (BE); Christophe Marc Macours, Hodelge (BE); and Bernard Kuhn, Mühldorf am Inn (DE)
Assigned to NXP B.V., Eindhoven (NL)
Filed by NXP B.V., Eindhoven (NL)
Filed on May 2, 2023, as Appl. No. 18/310,642.
Claims priority of application No. 22172061 (EP), filed on May 6, 2022.
Prior Publication US 2023/0356593 A1, Nov. 9, 2023
Int. Cl. H04R 3/00 (2006.01); B60K 35/00 (2006.01); B60K 35/26 (2024.01)
CPC B60K 35/00 (2013.01) [H04R 3/00 (2013.01); B60K 35/26 (2024.01); H04R 2499/13 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of generating an audible alert by a digital audio system configured to operate in a first operating mode and a second operating mode, the method comprising:
generating or receiving, by a first partition of the digital audio system, an alert signal;
outputting, by the first partition, the alert signal to a second partition of the digital audio system;
receiving, by the first partition, a processed alert signal from the second partition, the processed alert signal based on processing in the second partition at least a segment of the alert signal received from the first partition;
analysing the processed alert signal to define whether the digital audio system operates in the first operating mode or the second operating mode; and
in the first operating mode, outputting, by the first partition, an alert output signal comprising the alert signal; and
in the second operating mode, outputting, by the first partition, an alert output signal comprising the processed alert signal from the second partition;
wherein the first system partition is outside of the second system partition and
wherein the digital audio system operates in the first operating mode when the second partition is non-functional based on the analysis of the processed alert signal and operates in the second operating mode when the second partition is functional based on the analysis of the processed alert signal.