US 11,812,217 B2
Wearable audio device with inner microphone adaptive noise reduction
Alaganandan Ganeshkumar, North Attleboro, MA (US)
Assigned to Bose Corporation, Framingham, MA (US)
Filed by Bose Corporation, Framingham, MA (US)
Filed on Apr. 6, 2022, as Appl. No. 17/714,561.
Application 17/714,561 is a continuation of application No. 16/999,353, filed on Aug. 21, 2020, granted, now 11,330,358.
Prior Publication US 2022/0232310 A1, Jul. 21, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04R 1/10 (2006.01); G10K 11/178 (2006.01)
CPC H04R 1/1083 (2013.01) [G10K 11/17815 (2018.01); G10K 11/17873 (2018.01); G10K 11/17875 (2018.01); G10K 2210/1081 (2013.01); G10K 2210/3026 (2013.01); G10K 2210/3027 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A wearable two-way communication audio device, comprising:
an external microphone configured to be acoustically coupled to an environment outside an ear canal of a user;
an inner microphone configured to be acoustically coupled to an environment inside the ear canal of the user;
an external processing system that processes signals from the external microphone and generates a processed external signal;
an internal processing system that processes signals from the inner microphone and generates a processed internal signal, wherein the internal processing system adaptively generates a noise reduced internal signal in response to the signals captured by the external microphone; and
a mixer that mixes the processed external signal with the processed internal signal to generate a mixed signal, wherein a mixing ratio of the processed external signal and the processed internal signal is based on a detected speech of the user and an amount of detected external noise.