US 12,136,409 B2
Managing characteristics of active noise reduction
John Rule, Framingham, MA (US)
Assigned to Bose Corporation, Framingham, MA (US)
Filed by Bose Corporation, Framingham, MA (US)
Filed on Feb. 7, 2023, as Appl. No. 18/165,468.
Application 18/165,468 is a continuation of application No. 17/225,338, filed on Apr. 8, 2021, granted, now 11,600,256.
Application 17/225,338 is a continuation of application No. 17/154,114, filed on Jan. 21, 2021, abandoned.
Application 17/154,114 is a continuation of application No. 16/857,382, filed on Apr. 24, 2020, granted, now 10,937,410, issued on Mar. 2, 2021.
Prior Publication US 2023/0186892 A1, Jun. 15, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G10K 11/178 (2006.01); H04R 1/10 (2006.01)
CPC G10K 11/17873 (2018.01) [G10K 11/17823 (2018.01); H04R 1/1083 (2013.01); G10K 2210/3026 (2013.01); G10K 2210/3028 (2013.01); G10K 2210/3056 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method comprising:
in response to sensing that an earpiece of an active noise reduction (ANR) headphone has been positioned in, on, or around the ear:
(i) receiving a first input signal captured by one or more sensors associated with the ANR headphone;
(ii) computing, by one or more processing devices, a frequency domain representation of the first input signal for a set of discrete frequencies;
(iii) generating, by the one or more processing devices based on the frequency domain representation of the input signal, a set of parameters for a digital filter disposed in an ANR signal flow path of the ANR headphone; and
(iv) processing a second input signal in the ANR signal flow path using the generated set of parameters to generate an output signal for driving the electroacoustic transducer of the ANR headphone.