US 12,149,903 B2
Device for detecting sound in the surroundings of an automobile
Jochen Reinmuth, Reutlingen (DE); Amin Jemili, Kusterdingen (DE); and Georg Bischopink, Pliezhausen (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on May 23, 2022, as Appl. No. 17/750,539.
Claims priority of application No. 10 2021 205 466.8 (DE), filed on May 28, 2021.
Prior Publication US 2022/0386028 A1, Dec. 1, 2022
Int. Cl. H04R 5/04 (2006.01); B60R 11/02 (2006.01); H04R 3/00 (2006.01)
CPC H04R 5/04 (2013.01) [B60R 11/0247 (2013.01); H04R 3/005 (2013.01); H04R 2499/13 (2013.01)] 7 Claims
OG exemplary drawing
 
7. A device for detecting sound in surroundings of an automobile, the device comprising: a first structure-borne noise sensor which is acoustically coupled to a first oscillating body at an outside of the automobile and provides a first audio signal; a second audio signal which represents further sound from an interior of the automobile; and a processing unit configured to subtract at least the second audio signal from the first audio signal,
wherein the device includes a further noise sensor, which is configured to detect sound from an interior of the automobile and to provide the second audio signal,
wherein the further noise sensor is a second structure-borne noise sensor, which is acoustically coupled to a second oscillating body at an inside of the automobile,
wherein the processing unit is configured to subtract a third audio signal which is provided by an active sound source in the automobile or an interior microphone, from the first audio signal.