Emery M Ku

US Patent:

20230099287, Mar 30, 2023

Filed:

Dec 2, 2022

Appl. No.:

18/073699

Inventors:

- Framingham MA, US
Lei Cheng - Wellesley MA, US
Ole Nielsen - Cambridge, GB
Emery Ku - Sudbury MA, US
Cedrik Bacon - Ashland MA, US

Assignee:

Bose Corporation - Framingham MA

International Classification:

H04R 1/10
G10K 11/178

Abstract:

An active noise reduction earbud includes a housing and a first feedforward microphone disposed in the housing. A first sound inlet opening extends through the housing and is configured to conduct external sound to the first feedforward microphone. 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.

US Patent:

20230075151, Mar 9, 2023

Filed:

Aug 25, 2021

Appl. No.:

17/412062

Inventors:

- Framingham MA, US
Emery M. Ku - Somerville MA, US

International Classification:

H04R 1/10
H04R 29/00
H04R 3/02

Abstract:

A system for detecting parasitic oscillation in a wearable audio device that includes an electro-acoustic transducer that is configured to develop sound for a user, a housing that holds the transducer, at least one of a feedforward microphone that is configured to detect sound outside of the housing and output a feedforward microphone signal and a feedback microphone that is configured to detect sound inside of the housing and output a feedback microphone signal, and an opening in the housing that emits sound pressure from the transducer. The system includes a parasitic oscillation detector that is configured to determine a fundamental frequency of at least one of the feedforward and feedback microphone signals and compare an amplitude of the determined fundamental frequency to a threshold level, to determine parasitic oscillation.

US Patent:

20230066351, Mar 2, 2023

Filed:

Aug 30, 2021

Appl. No.:

17/460865

Inventors:

- Framingham MA, US
Emery M. KU - Sudbury MA, US

International Classification:

G10K 11/178

Abstract:

A method performed by an audio output device is provided for detecting instabilities and taking mitigating actions. Specifically, an A-weighted dBA level of a raw feedback signal exceeding a threshold level trigger, at least, muting the driver. The described methods apply to detecting instabilities across a broad frequency spectrum.

US Patent:

20230026742, Jan 26, 2023

Filed:

Oct 7, 2022

Appl. No.:

17/962005

Inventors:

- Framingham MA, US
Emery M. Ku - Somerville MA, US

Assignee:

Bose Corporation - Framingham MA

International Classification:

H04R 3/04
G10L 21/0216
H04R 1/10
H04R 5/027
H04R 5/04

Abstract:

Technology described in this document can be embodied in an earpiece of an active noise reduction (ANR) device. The earpiece includes a plurality of microphones, wherein each of the plurality of microphones is usable for capturing ambient audio to generate input signals for both an ANR mode of operation and a hear-through mode of operation of the ANR device. The earpiece further includes a controller configured to: process a first subset of microphones from the plurality of microphones to generate input signals for the ANR mode of operation and process a second subset of microphones from the plurality of microphones to generate input signals for the hear-through mode of operation. The second subset of microphones excludes a first microphone from the plurality of microphones located closest to a noise pathway of the earpiece.

US Patent:

20210168503, Jun 3, 2021

Filed:

Feb 16, 2021

Appl. No.:

17/176585

Inventors:

- Framingham MA, US
Emery M. Ku - Somerville MA, US
Alexia Delhoume - Framingham MA, US
Michelle Gelberger - Cambridge MA, US

Assignee:

Bose Corporation - Framingham MA

International Classification:

H04R 3/04
H04R 5/033
H04R 5/04

Abstract:

A method and system directed to controlling Active Noise Reduction (ANR) audio devices with active noise reduction. The system generates one or more control signals, using a controller, to set one or more ANR parameters of a first and a second wearable audio device to a first ANR state; detects at least one of: whether the first wearable audio device is engaged with or removed from a first ear of a user, using a first sensor of the first wearable audio device; or whether a second wearable audio device is engaged with or removed form a second ear of a user, using a second sensor of the second wearable audio device; and automatically adjusts the one or more ANR parameters of the first and/or second wearable audio device to a second ANR state when either the first wearable audio device or the second wearable audio device, or both, are removed from an ear of the user, wherein the second ANR state comprises a reduction in a level of ANR at least at some frequencies compared to the first ANR state.

US Patent:

20210112338, Apr 15, 2021

Filed:

Dec 21, 2020

Appl. No.:

17/129615

Inventors:

- Framingham MA, US
Emery M. Ku - Somerville MA, US

International Classification:

H04R 3/04
G10L 21/0216
H04R 1/10
H04R 5/027
H04R 5/04

Abstract:

Technology described in this document can be embodied in an earpiece of an active noise reduction (ANR) device. The earpiece includes a plurality of microphones, wherein each of the plurality of microphones is usable for capturing ambient audio to generate input signals for both an ANR mode of operation and a hear-through mode of operation of the ANR device. The earpiece further includes a controller configured to: process a first subset of microphones from the plurality of microphones to generate input signals for the ANR mode of operation, process a second subset of microphones from the plurality of microphones to generate input signals for the hear-through mode of operation, detect that a particular microphone of the second subset is acoustically coupled to an acoustic transducer of the ANR device in the hear-through mode of operation, and in response to the detection, process the input signals from the second subset of microphones without using input signals from the particular microphone.

US Patent:

20210076131, Mar 11, 2021

Filed:

Sep 9, 2019

Appl. No.:

16/565293

Inventors:

- Framingham MA, US
Emery M. Ku - Somerville MA, US
Alexia Delhoume - Framingham MA, US
Michelle Gelberger - Cambridge MA, US

Assignee:

Bose Corporation - Framingham MA

International Classification:

H04R 3/04
H04R 5/04
H04R 5/033

Abstract:

A method and system directed to controlling Active Noise Reduction (ANR) audio devices with active noise reduction. The system generates one or more control signals, using a controller, to set one or more ANR parameters of a first and a second wearable audio device to a first ANR state; detects at least one of: whether the first wearable audio device is engaged with or removed from a first ear of a user, using a first sensor of the first wearable audio device; or whether a second wearable audio device is engaged with or removed form a second ear of a user, using a second sensor of the second wearable audio device; and automatically adjusts the one or more ANR parameters of the first and/or second wearable audio device to a second ANR state when either the first wearable audio device or the second wearable audio device, or both, are removed from an ear of the user, wherein the second ANR state comprises a reduction in a level of ANR at least at some frequencies compared to the first ANR state.

US Patent:

20200374629, Nov 26, 2020

Filed:

May 24, 2019

Appl. No.:

16/422239

Inventors:

- Framingham MA, US
Emery M. Ku - Somerville MA, US

International Classification:

H04R 3/04
H04R 5/027
H04R 5/04
H04R 1/10
G10L 21/0216

Abstract:

Technology described in this document can be embodied in an earpiece of an active noise reduction (ANR) device. The earpiece includes a plurality of microphones, wherein each of the plurality of microphones is usable for capturing ambient audio to generate input signals for both an ANR mode of operation and a hear-through mode of operation of the ANR device. The earpiece further includes a controller configured to: process a first subset of microphones from the plurality of microphones to generate input signals for the ANR mode of operation, process a second subset of microphones from the plurality of microphones to generate input signals for the hear-through mode of operation, detect that a particular microphone of the second subset is acoustically coupled to an acoustic transducer of the ANR device in the hear-through mode of operation, and in response to the detection, process the input signals from the second subset of microphones without using input signals from the particular microphone.