US 11,856,377 B2
Active noise reduction audio devices and systems
David R. Minich, Natick, MA (US); Emery M. Ku, Somerville, MA (US); Alexia Delhoume, Framingham, MA (US); and Michelle Gelberger, Cambridge, MA (US)
Assigned to Bose Corporation, Framingham, MA (US)
Filed by Bose Corporation, Framingham, MA (US)
Filed on Feb. 16, 2021, as Appl. No. 17/176,585.
Application 17/176,585 is a continuation of application No. 16/565,293, filed on Sep. 9, 2019, granted, now 10,959,019.
Prior Publication US 2021/0168503 A1, Jun. 3, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04R 3/04 (2006.01); H04R 5/033 (2006.01); H04R 5/04 (2006.01)
CPC H04R 3/04 (2013.01) [H04R 5/033 (2013.01); H04R 5/04 (2013.01); G10K 2210/1081 (2013.01); H04R 2460/01 (2013.01)] 20 Claims
OG exemplary drawing
 
14. An Active Noise Reduction (ANR) audio system, comprising:
a first wearable audio device comprising:
a first sensor arranged to determine if the first wearable audio device is engaged with or removed from a first ear of a user;
a second wearable audio device comprising:
a second sensor arranged to determine if the second wearable audio device is engaged with or removed from a second ear of the user; and
a controller arranged to:
set one or more ANR parameters of the first and the second wearable audio device to a first ANR state;
detect that the first wearable audio device is removed from the first ear of the user; and
automatically adjust the one or more ANR parameters of the second wearable audio device to a second ANR state when the first wearable audio device is removed from the first ear of the user, wherein the second ANR state comprises a reduction in a level of ANR compared to the first ANR state.