US 11,897,331 B2
In-vehicle acoustic monitoring system for driver and passenger
Wei Wang, Sunnyvale, CA (US); Qi Luo, Sunnyvale, CA (US); Kecheng Xu, Sunnyvale, CA (US); Hongyi Sun, Sunnyvale, CA (US); Wesley Reynolds, Sunnyvale, CA (US); and Zejun Lin, Sunnyvale, CA (US)
Assigned to BAIDU USA LLC, Sunnyvale, CA (US)
Filed by Baidu USA LLC, Sunnyvale, CA (US)
Filed on Jan. 14, 2021, as Appl. No. 17/149,585.
Prior Publication US 2022/0219532 A1, Jul. 14, 2022
Int. Cl. G08B 23/00 (2006.01); B60K 28/02 (2006.01); B60W 60/00 (2020.01); B60W 30/182 (2020.01); B60W 50/14 (2020.01); G10L 25/51 (2013.01); H04R 1/02 (2006.01); H04R 1/08 (2006.01)
CPC B60K 28/02 (2013.01) [B60W 30/182 (2013.01); B60W 50/14 (2013.01); B60W 60/0013 (2020.02); B60W 60/0015 (2020.02); G10L 25/51 (2013.01); H04R 1/02 (2013.01); H04R 1/08 (2013.01); B60W 2540/229 (2020.02); B60W 2720/10 (2013.01); B60W 2720/12 (2013.01); H04R 2499/13 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method for operating a vehicle, the method comprising:
generating sound signals using one or more speakers disposed within the vehicle, wherein the sound signals are not audible;
receiving reflected sound signals from a driver or a passenger of the vehicle by one or more microphones disposed within the vehicle;
detecting a behavior-induced acoustic pattern based on the reflected sound signals received by the one or more microphones;
analyzing the behavior-induced acoustic pattern to determine a behavior of the driver or the passenger of the vehicle; and
generating an alert according to the behavior of the driver or the passenger of the vehicle in view of a set of one or more rules.