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    Active noise reduction in open ear directional acoustic devices
    11.
    发明授权
    Active noise reduction in open ear directional acoustic devices 有权

    公开(公告)号：US11197083B2

    公开(公告)日：2021-12-07

    申请号：US16534016

    申请日：2019-08-07

    Applicant: Bose Corporation

    Inventor： Ankita D. Jain ,  Ryan C. Struzik ,  Dale McElhone ,  Daniel M. Gauger, Jr.

    IPC: H04R1/10

    Abstract: An acoustic device includes at least one acoustic transducer disposed such that, in a head-worn state, the at least one acoustic transducer is in an open-ear configuration in which an ear canal of a user of the acoustic device is unobstructed. The acoustic device also includes an array of two or more first microphones that captures audio preferentially from a first direction as compared to at least a second direction different from the first direction, wherein the audio captured using the array is processed and played back through the at least one acoustic transducer, and an active noise reduction (ANR) engine that includes one or more processing devices. The ANR engine is configured to generate a driver signal for the at least one acoustic transducer, the driver signal having phases that reduce effects of audio captured from at least the second direction.

    Wearable audio system use position detection
    12.
    发明授权
    Wearable audio system use position detection 有权

    公开(公告)号：US11064282B1

    公开(公告)日：2021-07-13

    申请号：US16857462

    申请日：2020-04-24

    Applicant: Bose Corporation

    Inventor： Dale McElhone ,  Binu Oommen ,  Cory Roberts ,  Mehul Trivedi ,  Kyle A. Vecchiarino

    IPC: H04R1/10

    Abstract: A wearable audio system with a first active portion that in its normal use position is carried on a user's body on a first side of the mid-sagittal plane and a second active portion that in its normal use position is carried on the user's body on a second side of the mid-sagittal plane. Sound is transmitted from one active portion and received at the other active portion. The received sound is used to estimate whether the active positions are in their use positions.

    Active Noise Reduction in Open Ear Directional Acoustic Devices
    13.
    发明申请
    Active Noise Reduction in Open Ear Directional Acoustic Devices 有权

    公开(公告)号：US20210044882A1

    公开(公告)日：2021-02-11

    申请号：US16534016

    申请日：2019-08-07

    Applicant: Bose Corporation

    Inventor： Ankita D. Jain ,  Ryan C. Struzik ,  Dale McElhone ,  Daniel M. Gauger, JR.

    IPC: H04R1/10

    Abstract: An acoustic device includes at least one acoustic transducer disposed such that, in a head-worn state, the at least one acoustic transducer is in an open-ear configuration in which an ear canal of a user of the acoustic device is unobstructed. The acoustic device also includes an array of two or more first microphones that captures audio preferentially from a first direction as compared to at least a second direction different from the first direction, wherein the audio captured using the array is processed and played back through the at least one acoustic transducer, and an active noise reduction (ANR) engine that includes one or more processing devices. The ANR engine is configured to generate a driver signal for the at least one acoustic transducer, the driver signal having phases that reduce effects of audio captured from at least the second direction.

    Compressive Hear-through in Personal Acoustic Devices
    14.
    发明申请
    Compressive Hear-through in Personal Acoustic Devices 审中-公开

    公开(公告)号：US20190130928A1

    公开(公告)日：2019-05-02

    申请号：US16124056

    申请日：2018-09-06

    Applicant: Bose Corporation

    Inventor： John Allen Rule ,  Daniel M. Gauger, JR. ,  Dale McElhone ,  Katie Janine Moenkhaus

    IPC: G10L21/0232 ,  H04R1/10 ,  H04R5/033 ,  G10L25/84 ,  H04R3/00 ,  H04R5/04

    Abstract: The technology described in this document can be embodied in a method that includes receiving an input signal representing audio captured by a microphone of an active noise reduction (ANR) headphone, processing, by one or more processing devices, a portion of the input signal to determine a noise level in the input signal, and determining that the noise level satisfies a threshold condition. The method also includes, in response to determining that the noise level satisfies the threshold condition, generating an output signal in which ANR processing on the input signal is controlled in accordance with a target loudness level of the output signal, and driving an acoustic transducer of the ANR headphone using the output signal.

    On/off head detection of personal acoustic device using an earpiece microphone
    15.
    发明授权
    On/off head detection of personal acoustic device using an earpiece microphone 有权

    公开(公告)号：US09838812B1

    公开(公告)日：2017-12-05

    申请号：US15342599

    申请日：2016-11-03

    Applicant: Bose Corporation

    Inventor： Mihir D. Shetye ,  Binu K. Oommen ,  Dale McElhone

    IPC: H04R29/00 ,  H04R1/10

    CPC classification number: H04R29/001 ,  H04R1/1041 ,  H04R1/1083 ,  H04R1/1091 ,  H04R5/033 ,  H04R2460/01 ,  H04R2460/03

    Abstract: A method of controlling a personal acoustic device includes generating a first electrical signal responsive to an acoustic signal incident at a microphone disposed on an earpiece of the personal acoustic device. A characteristic of a transfer function based on the first electrical signal and a second electrical signal provided to a speaker in the earpiece is determined. An operating state of the personal acoustic device is determined form the characteristic of the transfer function. The operating state include a state in which the earpiece is positioned in the vicinity of an ear of a user and a second state in which the earpiece is absent from the vicinity of the ear of the user. Examples of a microphone that may be used include feedback and feedforward microphones in an acoustic noise reduction circuit.

    Active noise reduction in open ear directional acoustic devices
    19.
    发明授权
    Active noise reduction in open ear directional acoustic devices 有权

    公开(公告)号：US11736853B2

    公开(公告)日：2023-08-22

    申请号：US17541466

    申请日：2021-12-03

    Applicant: Bose Corporation

    Inventor： Ankita D. Jain ,  Ryan C. Struzik ,  Dale McElhone ,  Daniel M. Gauger, Jr.

    IPC: H04R1/10

    CPC classification number: H04R1/105 ,  H04R2460/01

    Abstract: An acoustic device includes at least one acoustic transducer disposed such that, in a head-worn state, the at least one acoustic transducer is in an open-ear configuration in which an ear canal of a user of the acoustic device is unobstructed. The acoustic device also includes an array of two or more first microphones that captures audio preferentially from a first direction as compared to at least a second direction different from the first direction, wherein the audio captured using the array is processed and played back through the at least one acoustic transducer, and an active noise reduction (ANR) engine that includes one or more processing devices. The ANR engine is configured to generate a driver signal for the at least one acoustic transducer, the driver signal having phases that reduce effects of audio captured from at least the second direction.

    COMPRESSIVE HEAR-THROUGH IN PERSONAL ACOUSTIC DEVICES
    20.
    发明申请
    COMPRESSIVE HEAR-THROUGH IN PERSONAL ACOUSTIC DEVICES 有权

    公开(公告)号：US20210350816A1

    公开(公告)日：2021-11-11

    申请号：US17381794

    申请日：2021-07-21

    Applicant: Bose Corporation

    Inventor： John Allen Rule ,  Daniel M. Gauger, JR. ,  Dale McElhone ,  Katie Janine Moenkhaus

    IPC: G10L21/0232 ,  H04R1/10 ,  H04R5/033 ,  H04R3/00 ,  H04R5/04 ,  G10L25/84 ,  G10K11/178

    Abstract: The technology described in this document can be embodied in a method that includes receiving an input signal representing audio captured by a microphone of an active noise reduction (ANR) headphone, processing, by one or more processing devices, a portion of the input signal to determine a noise level in the input signal, and determining that the noise level satisfies a threshold condition. The method also includes, in response to determining that the noise level satisfies the threshold condition, generating an output signal in which ANR processing on the input signal is controlled in accordance with a target loudness level of the output signal, and driving an acoustic transducer of the ANR headphone using the output signal.

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