	US 11,716,155 B2
	Method for testing in-vehicle radio broadcast receiver device
Marcin Szelest, Cracow (PL); and Pawel Skruch, Mogilany (PL)
Assigned to Aptiv Technologies Limited, St. Michael (BB)
Filed by Aptiv Technologies Limited, St. Michael (BB)
Filed on Apr. 14, 2022, as Appl. No. 17/659,296.
Claims priority of application No. 21170541 (EP), filed on Apr. 26, 2021.
Prior Publication US 2022/0345233 A1, Oct. 27, 2022
Int. Cl. H04B 17/00 (2015.01); H04B 17/26 (2015.01); H04B 1/16 (2006.01); H04H 40/36 (2008.01)

CPC H04B 17/26 (2015.01) [H04B 1/1646 (2013.01); H04H 40/36 (2013.01)]

20 Claims

1. A method comprising:

receiving, by a receiver antenna, a radio signal carrying an audio information from a radio broadcasting source;

splitting, by a splitter, the received radio signal into a first radio signal stream and a second radio signal stream;

transmitting, by the splitter, the first radio signal stream to a radio broadcast receiver device under test;

transmitting, by the splitter, the second radio signal stream to a tester and recorder device;

at the radio broadcast receiver device under test:

converting the first radio signal stream into a demodulated audio signal; and

transmitting the demodulated audio signal to the tester and recorder device; and

at the tester and recorder device:

receiving via a first input the demodulated audio signal;

determining a spectrum of frequencies over time of said demodulated audio signal;

inputting the determined spectrum of frequencies into an artificial intelligence (AI) module of audio abnormality detection;

receiving via a second input the second radio signal stream;

converting the second radio signal stream into a data signal;

recording the data signal into a temporary storage memory; and

when the AI module outputs a positive detection of audio abnormality, controlling a transfer of data from the temporary storage memory into a permanent storage memory, the transferred data corresponding to a time window including the detected audio abnormality.