US 11,838,719 B2
Active noise reduction earbud
Andrew Donald Munro, Northborough, MA (US); Lei Cheng, Wellesley, MA (US); Ole Nielsen, Cambridge (GB); Emery Ku, Sudbury, MA (US); and Cedrik Bacon, Ashland, MA (US)
Assigned to Bose Corporation, Framingham, MA (US)
Filed by Bose Corporation, Framingham, MA (US)
Filed on Dec. 2, 2022, as Appl. No. 18/073,699.
Application 18/073,699 is a continuation of application No. 17/362,625, filed on Jun. 29, 2021, granted, now 11,540,043.
Prior Publication US 2023/0099287 A1, Mar. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G10K 11/178 (2006.01); H04R 1/10 (2006.01)
CPC H04R 1/1083 (2013.01) [G10K 11/17857 (2018.01); G10K 11/17873 (2018.01); G10K 11/17881 (2018.01); H04R 1/1016 (2013.01); G10K 2210/1081 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An active noise reduction (ANR) earbud comprising:
a housing;
a first feedforward microphone disposed in the housing;
a first sound inlet opening extending through the housing and configured to conduct external sound to the first feedforward microphone,
wherein the first sound inlet opening is configured to sit within a concha cavum of a user's ear and faces toward an auricle of the user's ear when the earbud is worn.