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11.发明申请公开(公告)号：US20220020351A1
公开(公告)日：2022-01-20
申请号：US17488509
申请日：2021-09-29
Applicant: Bose Corporation
Inventor： Ole Mattis Nielsen , David J. Warkentin , Lei Cheng , Brandon Lee Olmos , Michael P. O'Connell
IPC: G10K11/178 , H04R1/10 , H04R3/00
Abstract: Various aspects include a wearable audio device having active noise reduction (ANR), where the ANR device includes: a feedback microphone; an electroacoustic transducer; and a feedback compensator configured to output a noise reduction signal to the electroacoustic transducer in response to a feedback signal from the feedback microphone, wherein the feedback compensator includes a tunable filter that modulates a loop gain in response to an adverse low frequency event being detected in the noise reduction signal outputted from the tunable filter, wherein the tunable filter is configured to maintain a substantially similar loop gain shape near a low frequency cross-over as the low frequency cross-over changes during loop gain modulation.
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公开(公告)号：US10601387B2
公开(公告)日：2020-03-24
申请号：US16171951
申请日：2018-10-26
Applicant: Bose Corporation
Inventor： Shiufun Cheung , Zukui Song , David J. Warkentin
Abstract: The technology described herein can be embodied in a method for estimating a power spectral density of noise, the method including receiving an input signal representing audio captured using a microphone. The input signal includes a first portion that represents acoustic outputs from two or more audio sources, and a second portion that represents a noise component. The method also includes iteratively modifying a frequency domain representation of the input signal, such that the modified frequency domain representation represents a portion of the input signal in which effects due to the first portion are substantially reduced. The method further includes determining, from the modified frequency domain representation, an estimate of a power spectral density of the noise, and generating a control signal configured to adjust one or more gains of an acoustic transducer. The control signal is generated based on the estimate of the power spectral density of the noise.
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公开(公告)号：US20190115006A1
公开(公告)日：2019-04-18
申请号：US16229292
申请日：2018-12-21
Applicant: Bose Corporation
Inventor： Wade P. Torres , David Easterbrook , Paul T. Bender , David J. Warkentin , Steven H. Isabelle , Ryan C. Struzik
IPC: G10K11/178 , H04R3/12
Abstract: A method and system for a noise cancellation comprises an amplifier in communication with three or more speakers disposed in an area. A system controller produces a driver signal for each of the speakers in response to a signal from at least one microphone detecting sound in the area and communicates the driver signals to the amplifier. The amplifier drives each speaker with the driver signal produced for that speaker. In response to the driver signals, the speakers emit sound having a magnitude and phase that combine to attenuate a noise field in the area.
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公开(公告)号：US10199030B2
公开(公告)日：2019-02-05
申请号：US15465968
申请日：2017-03-22
Applicant: Bose Corporation
Inventor： Wade P. Torres , David Easterbrook , Paul T. Bender , David J. Warkentin , Steven H. Isabelle , Ryan C. Struzik
IPC: G10K11/178 , H04R3/12 , H04R1/02 , H04R1/40 , H04S7/00
Abstract: A method and system for a noise cancellation comprises an amplifier in communication with the three or more speakers disposed in an area. A system controller produces a driver signal for each of the speakers in response to a signal from at least one microphone detecting sound in the area and communicates the driver signals to the amplifier. The amplifier drives each speaker with the driver signal produced for that speaker. In response to the driver signals, the speakers emit sound that combined produces a substantially uniform sound pressure field for a particular zone within the area. The substantially uniform sound pressure field produced by the speakers has a magnitude and phase adapted to attenuate a noise field in the area corresponding to the sound detected by the at least one microphone.
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公开(公告)号：US20170193977A1
公开(公告)日：2017-07-06
申请号：US15465968
申请日：2017-03-22
Applicant: Bose Corporation
Inventor： Wade P. Torres , David Easterbrook , Paul T. Bender , David J. Warkentin , Steven H. Isabelle , Ryan C. Struzik
IPC: G10K11/178 , H04R3/12
CPC classification number: G10K11/178 , G10K11/17857 , G10K2210/102 , G10K2210/128 , G10K2210/1282 , G10K2210/3215 , H04R1/028 , H04R1/403 , H04R3/12 , H04R2201/405 , H04R2499/13 , H04S7/302
Abstract: A method and system for a noise cancellation comprises an amplifier in communication with the three or more speakers disposed in an area. A system controller produces a driver signal for each of the speakers in response to a signal from at least one microphone detecting sound in the area and communicates the driver signals to the amplifier. The amplifier drives each speaker with the driver signal produced for that speaker. In response to the driver signals, the speakers emit sound that combined produces a substantially uniform sound pressure field for a particular zone within the area. The substantially uniform sound pressure field produced by the speakers has a magnitude and phase adapted to attenuate a noise field in the area corresponding to the sound detected by the at least one microphone.
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Patent Agency Ranking
公开(公告)号：US20160121685A1
公开(公告)日：2016-05-05
申请号：US14790070
申请日：2015-07-02
Applicant: BOSE CORPORATION
Inventor： Marco Giovanardi , David J. Warkentin
IPC: B60G17/0165
CPC classification number: B60G17/0165 , B60G2400/821 , B60G2600/182 , B60G2800/164
Abstract: A vehicle suspension and wheel damper using anti-causal filtering. Information from in front of a wheel or information about an operating condition of a vehicle is used to anti-causally determine a response of an active suspension associated with the wheel.
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17.发明公开公开(公告)号：US20240112662A1
公开(公告)日：2024-04-04
申请号：US18527736
申请日：2023-12-04
Applicant: Bose Corporation
Inventor： Ole Mattis Nielsen , David J. Warkentin , Lei Cheng , Brandon Lee Olmos , Michael P. O'Connell
IPC: G10K11/178 , H04R1/10 , H04R3/00
CPC classification number: G10K11/1781 , H04R1/1083 , H04R3/002 , G10K2210/1081 , G10K2210/3026 , G10K2210/3056 , H04R2460/01
Abstract: Various aspects include a wearable audio device having active noise reduction (ANR). In some cases, a method for processing audio signals includes receiving a noise reduction signal configured to modify an audio signal and generate a noise reduced audio signal, the noise reduction signal having a nominal loop gain; and generating an adjusted noise reduction signal in response to a detected adverse low frequency event, the adjusted noise reduction signal having a modulated loop gain configured to reduce artifacts in the noise reduced audio signal.
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公开(公告)号：US20240078994A1
公开(公告)日：2024-03-07
申请号：US17902018
申请日：2022-09-02
Applicant: Bose Corporation
Inventor： John Allen Rule , David J. Warkentin
IPC: G10K11/178 , H04R1/10
CPC classification number: G10K11/17825 , G10K11/17823 , G10K11/17854 , G10K11/17881 , H04R1/1083 , G10K2210/1081 , G10K2210/3026 , G10K2210/3027 , G10K2210/3028 , H04R2460/01
Abstract: An active noise reduction (ANR) device includes an acoustic transducer, a first sensor, and a second sensor. The acoustic transducer is configured to generate output audio. The first sensor is configured to capture audio originating from an external environment of the ANR device. The second sensor is configured to generate a signal indicative of (1) the audio originating from the external environment and (2) the output audio generated by the acoustic transducer. The output audio generated by the acoustic transducer is modified based on a portion of the signal generated by the second sensor, the portion being attributable to a resonant mode of a user's ear canal.
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公开(公告)号：US10748521B1
公开(公告)日：2020-08-18
申请号：US16445952
申请日：2019-06-19
Applicant: Bose Corporation
Inventor： James P. Mulvey , David J. Warkentin , Emery M. Ku
IPC: G10K11/178
Abstract: This document describes a method that includes receiving a driver signal for an acoustic transducer of an acoustic device. The method also includes receiving a signal from a microphone of the acoustic device, and, processing the driver signal through a filter to provide a reference signal. The filter has a transfer function associated with a condition of the acoustic device. The method also includes comparing the signal to the reference signal to determine whether the signal has a threshold similarity to the reference signal, and, indicating the condition of the acoustic device in respond to the determined threshold similarity.
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公开(公告)号：US20190131950A1
公开(公告)日：2019-05-02
申请号：US16171951
申请日：2018-10-26
Applicant: Bose Corporation
Inventor： Shiufun Cheung , Zukui Song , David J. Warkentin
CPC classification number: H03G3/32 , G06F17/16 , G10L21/034 , H03G3/301 , H03G3/3089 , H03G5/165 , H03G9/025 , H04R29/00
Abstract: The technology described herein can be embodied in a method for estimating a power spectral density of noise, the method including receiving an input signal representing audio captured using a microphone. The input signal includes a first portion that represents acoustic outputs from two or more audio sources, and a second portion that represents a noise component. The method also includes iteratively modifying a frequency domain representation of the input signal, such that the modified frequency domain representation represents a portion of the input signal in which effects due to the first portion are substantially reduced. The method further includes determining, from the modified frequency domain representation, an estimate of a power spectral density of the noise, and generating a control signal configured to adjust one or more gains of an acoustic transducer. The control signal is generated based on the estimate of the power spectral density of the noise.
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