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公开(公告)号：US20210407529A1
公开(公告)日：2021-12-30
申请号：US17467833
申请日：2021-09-07
Applicant: Bose Corporation
Inventor： Alaganandan Ganeshkumar
IPC: G10L21/0232 , H04R3/00
Abstract: A personal audio device configured to be worn on the head or body of a user and including a plurality of microphones configured to provide a plurality of separate microphone signals capturing audio from an environment external to the personal audio device, and a processor configured to process a first subset of the plurality of separate microphone signals using a first array processing technique to provide a first array signal, compare the first array signal to a microphone signal from the plurality of separate microphone signals, and select the first array signal or the microphone signal based on the comparison.
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公开(公告)号：US20210241782A1
公开(公告)日：2021-08-05
申请号：US16778541
申请日：2020-01-31
Applicant: Bose Corporation
Inventor： Alaganandan Ganeshkumar
IPC: G10L21/0232 , H04R3/00 , G10L21/0216
Abstract: A personal audio device configured to be worn on the head or body of a user and including a plurality of microphones configured to provide a plurality of separate microphone signals capturing audio from an environment external to the personal audio device, and a processor configured to process a first subset of the plurality of separate microphone signals using a first array processing technique to provide a first array signal, compare the first array signal to a microphone signal from the plurality of separate microphone signals, and select the first array signal or the microphone signal based on the comparison.
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公开(公告)号：US10789949B2
公开(公告)日：2020-09-29
申请号：US15627905
申请日：2017-06-20
Applicant: Bose Corporation
Inventor： Ricardo Carreras , Alaganandan Ganeshkumar
IPC: G10L15/16 , G10L15/20 , H04R1/08 , G10L15/22 , G10L25/78 , G10L21/0216 , H04M9/08 , G10L15/08 , G10L21/0208
Abstract: An audio device with at least one microphone adapted to receive sound from a sound field and create an output, and a processing system that is responsive to the output of the microphone. The processing system is configured to use a signal processing algorithm to detect a wakeup word, and modify the signal processing algorithm that is used to detect the wakeup word if the sound field changes.
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公开(公告)号：US10741164B1
公开(公告)日：2020-08-11
申请号：US16424063
申请日：2019-05-28
Applicant: Bose Corporation
IPC: G10K11/178 , H04R3/00 , G10L25/21 , H04R1/10 , G10L25/78
Abstract: This document describes a method that includes receiving an input signal representing audio captured by a sensor disposed in an active noise reduction (ANR) device, determining, by one or more processing devices, that the ANR device is operating in a first operational mode, and in response, applying a first gain to the input signal to generate a first amplified input signal. The method also includes determining, by the one or more processing devices, that the ANR device is operating in a second operational mode different from the first operational mode, and in response, applying a second gain to the input signal to generate a second amplified input signal, wherein the second gain is different from the first gain. The method further includes processing the first or second amplified input signal to generate an output signal, and generating, by an acoustic transducer, an audio output based on the output signal.
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公开(公告)号：US20190304487A1
公开(公告)日：2019-10-03
申请号：US16442956
申请日：2019-06-17
Applicant: BOSE CORPORATION
Inventor： Xiang-Ern Yeo , Mehmet Ergezer , Alaganandan Ganeshkumar
Abstract: A headphone system is provided that includes a first earpiece, a first front microphone coupled to the first earpiece to receive a first acoustic signal, a first rear microphone coupled to the first earpiece to receive a second acoustic signal, the second acoustic signal being toward the rear of a user's head relative to the first acoustic signal, and a detection circuit coupled to the first front and rear microphones and configured to compare a front signal derived from the first front microphone to a rear signal derived from the first rear microphone and to selectively indicate that the user is speaking based at least in part upon the comparison.
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Patent Agency Ranking
公开(公告)号：US20190279654A1
公开(公告)日：2019-09-12
申请号：US16425529
申请日：2019-05-29
Applicant: Bose Corporation
Inventor： Alaganandan Ganeshkumar , Xiang-Ern Yeo , Mehmet Ergezer
IPC: G10L21/02 , H04R5/033 , G10L21/0232 , H04R1/40 , H04R1/10 , G10L21/0208 , G10L21/0216
Abstract: A headphone, headphone system, and speech enhancing method is provided to enhance speech pick-up from the user of a headphone and includes receiving a plurality of signals from a set of microphones and generating a primary signal by array processing the microphone signals to steer a beam toward the user's mouth. A noise reference signal is also derived from one or more microphones, and a voice estimate signal is generated by filtering the primary signal to remove components that are correlated to the noise reference signal.
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公开(公告)号：US10354635B2
公开(公告)日：2019-07-16
申请号：US15800909
申请日：2017-11-01
Applicant: BOSE CORPORATION
Inventor： Jeremy Kemmerer , Alaganandan Ganeshkumar
IPC: G10L21/0216 , G10K11/16 , H04R3/00 , G10L21/0208 , G10L15/22
Abstract: Audio pickup systems and methods are provided to enhance an audio signal by removing noise components related to an acoustic environment. The systems and methods receive a primary signal and a reference signal. The reference signal is adaptively filtered and subtracted from the primary signal to minimize an energy content of a resulting output signal.
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公开(公告)号：US20180366117A1
公开(公告)日：2018-12-20
申请号：US15627905
申请日：2017-06-20
Applicant: Bose Corporation
Inventor： Ricardo Carreras , Alaganandan Ganeshkumar
Abstract: An audio device with at least one microphone adapted to receive sound from a sound field and create an output, and a processing system that is responsive to the output of the microphone. The processing system is configured to use a signal processing algorithm to detect a wakeup word, and modify the signal processing algorithm that is used to detect the wakeup word if the sound field changes.
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公开(公告)号：US20180268845A1
公开(公告)日：2018-09-20
申请号：US15463259
申请日：2017-03-20
Applicant: BOSE CORPORATION
Inventor： Xiang-Ern Yeo , Mehmet Ergezer , Alaganandan Ganeshkumar
CPC classification number: G10L25/78 , G10L25/21 , G10L25/51 , G10L25/93 , G10L2025/783 , H04R1/1008 , H04R1/1041 , H04R1/406 , H04R3/005
Abstract: A headphone system is provided that includes a left and right earpiece having a left and right microphone, respectively, to receive left and right acoustic signals and provide left and right signals for processing. The left and right signals are added to provide a principal signal, and the left and right signals are subtracted to provide a reference signal. A detection circuit compares the principal signal to the reference signal and selectively indicates whether a user is speaking.
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公开(公告)号：US20180268837A1
公开(公告)日：2018-09-20
申请号：US15463368
申请日：2017-03-20
Applicant: BOSE CORPORATION
Inventor： Alaganandan Ganeshkumar , Xiang-Ern Yeo , Mehmet Ergezer
IPC: G10L21/02 , G10L21/0232 , H04R1/40 , H04R1/10
CPC classification number: G10L21/0205 , G10L21/0208 , G10L21/0216 , G10L21/0232 , G10L2021/02165 , G10L2021/02166 , H04R1/1008 , H04R1/1041 , H04R1/32 , H04R1/406 , H04R3/005 , H04R5/033 , H04R2430/23
Abstract: A headphone, headphone system, and speech enhancing method is provided to enhance speech pick-up from the user of a headphone and includes receiving a plurality of signals from a set of microphones and generating a primary signal by array processing the microphone signals to steer a beam toward the user's mouth. A noise reference signal is also derived from one or more microphones, and a voice estimate signal is generated by filtering the primary signal to remove components that are correlated to the noise reference signal.
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