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公开(公告)号：US11373665B2
公开(公告)日：2022-06-28
申请号：US16242424
申请日：2019-01-08
Applicant: AVNERA CORPORATION
Inventor： David Wurtz , Michael Wurtz , Amit Kumar , Colin Doolittle
IPC: G10L21/00 , G10L21/02 , G10L21/0216 , H04M9/08 , G10K11/178 , G10L21/0208 , G10L15/20 , G10L25/78 , H04R1/10 , H04R5/033 , H04R3/00
Abstract: The disclosure includes a voice isolation system comprising an acoustic echo-cancelation subsystem configured to receive a plurality of input signals, subtract an interference component from the input signals, and provide a plurality of output signals. The system also includes an adaptive beamformer subsystem configured to receive the plurality of output signals from the acoustic echo-cancelation subsystem and compute a signal-to-noise ratio enhanced signal based on the received output signals. The system also includes a residual noise suppressor subsystem configured to attenuate at least one portion of the SNR enhanced signal received from the adaptive beamformer subsystem based on the at least one portion having an SNR below a predetermined SNR threshold. The system also includes an automatic gain control subsystem configured to process a signal outputted from the residual noise suppressor subsystem and transmit a resulting signal as an output signal.
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公开(公告)号：US11614916B2
公开(公告)日：2023-03-28
申请号：US16730134
申请日：2019-12-30
Applicant: AVNERA CORPORATION
Inventor： Jiajin An , Michael Jon Wurtz , David Wurtz , Manpreet Khaira , Amit Kumar , Shawn O'Connor , Shankar Rathoud , James Scanlan , Eric Sorensen
IPC: G10L25/00 , G06F3/16 , G10L25/84 , H04R1/10 , H04R3/00 , G10L15/08 , G10L15/22 , H04R1/40 , G10K11/178 , H04R5/033 , G06F1/3206 , G06F1/3287
Abstract: Many headsets include automatic noise cancellation (ANC) which dramatically reduces perceived background noise and improves user listening experience. Unfortunately, the voice microphones in these devices often capture ambient noise that the headsets output during phone calls or other communication sessions to other users. In response, many headsets and communication devices provide manual muting circuitry, but users frequently forget to turn the muting on and/or off creating further problems as they communicate. To address this, the present inventors devised, among other things, an exemplary headset that detects the absence or presence of user speech, automatically muting and unmuting the voice microphone without user intervention. Some embodiments leverage relationships between feedback and feedforward signals in ANC circuitry to detect user speech, avoiding the addition of extra hardware to the headset. Other embodiments also leverage the speech detection function to activate and deactivate keyword detectors, and/or sidetone circuits, thus extending battery.
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Patent Agency Ranking
公开(公告)号：US10516960B2
公开(公告)日：2019-12-24
申请号：US16013073
申请日：2018-06-20
Applicant: Avnera Corporation
Inventor： Colin Doolittle , Amit Kumar , David Wurtz , Michael Wurtz , Manpreet Khaira , Meenakshi Barjatia
Abstract: An audio speaker system for a home theater including a number of microphones, a number of speakers, each speaker located at a different location in a room, and a processor electrically connected to the plurality of microphones and wirelessly connected to the plurality of speakers. The processor is configured to generate an audio signal to send to each speaker of the plurality of speakers, output audio from each speaker of the plurality of speakers based on the audio signal, receive the audio at each microphone from each speaker of the plurality of speakers, determine a location of each speaker relative to the plurality of microphones based on the received audio at each microphone, and assign an audio channel to each speaker based on the determined location.
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公开(公告)号：US20190215634A1
公开(公告)日：2019-07-11
申请号：US16013073
申请日：2018-06-20
Applicant: Avnera Corporation
Inventor： Colin Doolittle , Amit Kumar , David Wurtz , Michael Wurtz , Manpreet Khaira , Meenakshi Barjatia
Abstract: An audio speaker system for a home theater including a number of microphones, a number of speakers, each speaker located at a different location in a room, and a processor electrically connected to the plurality of microphones and wirelessly connected to the plurality of speakers. The processor is configured to generate an audio signal to send to each speaker of the plurality of speakers, output audio from each speaker of the plurality of speakers based on the audio signal, receive the audio at each microphone from each speaker of the plurality of speakers, determine a location of each speaker relative to the plurality of microphones based on the received audio at each microphone, and assign an audio channel to each speaker based on the determined location.
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公开(公告)号：US20190214036A1
公开(公告)日：2019-07-11
申请号：US16242424
申请日：2019-01-08
Applicant: Avnera Corporation
Inventor： David Wurtz , Michael Wurtz , Amit Kumar , Colin Doolittle
IPC: G10L21/0216 , G10L15/20 , G10L25/78
CPC classification number: G10L21/0216 , G10K11/17827 , G10K11/17833 , G10K2210/108 , G10L15/20 , G10L21/0208 , G10L25/78 , G10L2021/02082 , G10L2021/02165 , G10L2021/02166 , H04M9/082 , H04R1/1083 , H04R3/005 , H04R5/033
Abstract: The disclosure includes a voice isolation system comprising an acoustic echo-cancelation subsystem configured to receive a plurality of input signals, subtract an interference component from the input signals, and provide a plurality of output signals. The system also includes an adaptive beamformer subsystem configured to receive the plurality of output signals from the acoustic echo-cancelation subsystem and compute a signal-to-noise ratio enhanced signal based on the received output signals. The system also includes a residual noise suppressor subsystem configured to attenuate at least one portion of the SNR enhanced signal received from the adaptive beamformer subsystem based on the at least one portion having an SNR below a predetermined SNR threshold. The system also includes an automatic gain control subsystem configured to process a signal outputted from the residual noise suppressor subsystem and transmit a resulting signal as an output signal.
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公开(公告)号：US10564925B2
公开(公告)日：2020-02-18
申请号：US15711793
申请日：2017-09-21
Applicant: Avnera Corporation
Inventor： Jiajin An , Michael Jon Wurtz , David Wurtz , Manpreet Khaira , Amit Kumar , Shawn O'Connor , Shankar Rathoud , James Scanlan , Eric Sorensen
Abstract: Many headsets include automatic noise cancellation (ANC) which dramatically reduces perceived background noise and improves user listening experience. Unfortunately, the voice microphones in these devices often capture ambient noise that the headsets output during phone calls or other communication sessions to other users. In response, many headsets and communication devices provide manual muting circuitry, but users frequently forget to turn the muting on and/or off, creating further problems as they communicate. To address this, the present inventors devised, among other things, an exemplary headset that detects the absence or presence of user speech, automatically muting and unmuting the voice microphone without user intervention. Some embodiments leverage relationships between feedback and feedforward signals in ANC circuitry to detect user speech, avoiding the addition of extra hardware to the headset. Other embodiments also leverage the speech detection function to activate and deactivate keyword detectors, and/or sidetone circuits, thus extending battery.
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公开(公告)号：US20180225082A1
公开(公告)日：2018-08-09
申请号：US15711793
申请日：2017-09-21
Applicant: Avnera Corporation
Inventor： Jiajin An , MIchael Jon Wurtz , David Wurtz , Manpreet Khaira , Amit Kumar , Shawn O'Connor , Shankar Rathoud , James Scanlan , Eric Sorensen
Abstract: Many headsets include automatic noise cancellation (ANC) which dramatically reduces perceived background noise and improves user listening experience. Unfortunately, the voice microphones in these devices often capture ambient noise that the headsets output during phone calls or other communication sessions to other users. In response, many headsets and communication devices provide manual muting circuitry, but users frequently forget to turn the muting on and/or off, creating further problems as they communicate. To address this, the present inventors devised, among other things, an exemplary headset that detects the absence or presence of user speech, automatically muting and unmuting the voice microphone without user intervention. Some embodiments leverage relationships between feedback and feedforward signals in ANC circuitry to detect user speech, avoiding the addition of extra hardware to the headset. Other embodiments also leverage the speech detection function to activate and deactivate keyword detectors, and/or sidetone circuits, thus extending battery.
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