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    NOISE CANCELLATION SYSTEM
    43.
    发明申请
    NOISE CANCELLATION SYSTEM 有权
    噪声消除系统

    公开(公告)号：US20150195646A1

    公开(公告)日：2015-07-09

    申请号：US14148533

    申请日：2014-01-06

    Applicant: Avnera Corporation

    Inventor： Amit Kumar ,  Wai Lang Lee ,  Jianping Wen

    IPC: H04R3/00

    CPC classification number: G10K11/178 ,  G10K11/17853 ,  G10K11/17873 ,  G10K11/17875 ,  G10K11/17879 ,  G10K2210/3016 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3028 ,  H04R2460/01

    Abstract: A programmable Active Noise Compensation (ANC) system for an audio input includes a parameter store structured to store a number of various filter parameters. A mode of operation is selected that represents the type of environment the ANC system is operating in—feed-forward, feed-back, or combined feed-forward and feedback. Different filter parameters are retrieved from the parameter store based on the selected mode and desired operation. Audio inputs are sampled at a relatively high sample rate that matches inputs from a feed-forward and feedback microphone that may be present in the system. Parameters and instructions may be changed in the system responsive to changing conditions of the compensation system.

    Abstract translation: 用于音频输入的可编程有源噪声补偿（ANC）系统包括结构化以存储多个滤波器参数的参数存储器。 选择一种操作模式，其表示ANC系统正在进行前馈，反馈或组合的前馈和反馈的环境类型。 基于所选择的模式和期望的操作，从参数存储器检索不同的滤波器参数。 音频输入以相对高的采样率进行采样，该采样率与可能存在于系统中的前馈和反馈麦克风的输入相匹配。 响应于补偿系统的变化条件，可以在系统中改变参数和指令。

    Acoustic processor having low latency
    44.
    发明授权
    Acoustic processor having low latency 有权

    公开(公告)号：US10997960B2

    公开(公告)日：2021-05-04

    申请号：US16545917

    申请日：2019-08-20

    Applicant: Avnera Corporation

    Inventor： Amit Kumar ,  Thomas Irrgang ,  Xudong Zhao

    IPC: H04R3/00 ,  G10K11/178 ,  H04R1/10

    Abstract: An audio processing system can include an Analog to Digital Converter structured to receive an analog input signal and convert the analog input signal to a digital input signal, a first processor coupled with the Analog to Digital Converter, the first processor including at least one programmable bi-quadratic filter chain structured to receive the digital input signal from the Analog to Digital Converter and perform audio processing on the received digital input signal at a first clock rate, and a second processor coupled with the first processor and the Analog to Digital Converter and structured to receive the digital input signal from the Analog to Digital Converter and perform audio processing on the received digital input signal at a second clock rate that is different from the first clock rate.

    Active noise cancelation with controllable levels
    45.
    发明授权
    Active noise cancelation with controllable levels 有权

    公开(公告)号：US10950214B2

    公开(公告)日：2021-03-16

    申请号：US16721529

    申请日：2019-12-19

    Applicant: Avnera Corporation

    Inventor： Amit Kumar ,  Eric Sorensen

    IPC: G10K11/178

    Abstract: A system including an automatic noise canceling (ANC) headphone and a processor. The ANC headphone has a microphone configured to generate a microphone signal and at least two non-zero ANC gain levels. The processor is configured to receive the microphone signal, determine a characteristic of the microphone signal, and identify a revised ANC level from the ANC gain levels based on a comparison of the characteristic to at least one threshold. Methods are also disclosed.

    ACOUSTIC PROCESSOR HAVING LOW LATENCY
    46.
    发明申请
    ACOUSTIC PROCESSOR HAVING LOW LATENCY 审中-公开

    公开(公告)号：US20200084541A1

    公开(公告)日：2020-03-12

    申请号：US16545917

    申请日：2019-08-20

    Applicant: Avnera Corporation

    Inventor： Amit Kumar ,  Thomas Irrgang ,  Xudong Zhao

    IPC: H04R3/00 ,  G10K11/178 ,  H04R1/10

    Abstract: An audio processing system can include an Analog to Digital Converter structured to receive an analog input signal and convert the analog input signal to a digital input signal, a first processor coupled with the Analog to Digital Converter, the first processor including at least one programmable bi-quadratic filter chain structured to receive the digital input signal from the Analog to Digital Converter and perform audio processing on the received digital input signal at a first clock rate, and a second processor coupled with the first processor and the Analog to Digital Converter and structured to receive the digital input signal from the Analog to Digital Converter and perform audio processing on the received digital input signal at a second clock rate that is different from the first clock rate.

    Calibration and stabilization of an active noise cancelation system
    47.
    发明授权
    Calibration and stabilization of an active noise cancelation system 有权

    公开(公告)号：US10540954B2

    公开(公告)日：2020-01-21

    申请号：US16101192

    申请日：2018-08-10

    Applicant: Avnera Corporation

    Inventor： Amit Kumar ,  Thomas Irrgang ,  Shankar Rathoud ,  Eric Sorensen

    IPC: G10K11/178 ,  H04R29/00 ,  H04R1/10

    Abstract: A fixture for calibrating an active noise canceling (ANC) earphone, the calibration fixture including an ear model and an acoustic path. The ear model is configured to support an ANC earphone and includes an ear canal extending from an outer end of the ear canal to an inner end of the ear canal. The acoustic path is external to the ear canal and extends from, at a first end of the acoustic path, the inner end of the ear canal of the ear model to an opposite, second end of the acoustic path. The acoustic path is configured to transmit a mechanical sound wave received from the inner end of the ear canal to a region external to the ear model and adjacent the outer end of the ear canal.

    EARBUD OPERATION DURING EARBUD INSERTION DETECTION
    48.
    发明申请
    EARBUD OPERATION DURING EARBUD INSERTION DETECTION 审中-公开

    公开(公告)号：US20190335267A1

    公开(公告)日：2019-10-31

    申请号：US16398074

    申请日：2019-04-29

    Applicant: AVNERA CORPORATION

    Inventor： Michael Jon Wurtz ,  Amit Kumar ,  Jiajin An

    IPC: H04R1/10 ,  H03F13/00 ,  G10K11/178 ,  H03G7/00 ,  H04R29/00

    Abstract: A method of operating an earbud configured to be removed from and inserted into a user's ear canal can include generating an input signal by an input signal generating device. The method can also include determining whether an insertion event has occurred based on the generated input signal and causing the earbud to operate in a low power mode responsive to an absence of an insertion event determination after a first period of time. The method can also include causing the earbud to operate in an ultra-low power mode responsive to the absence of an insertion event determination after a second period of time that occurs after the first period of time, the ultra-low power mode having a lower power consumption than the low power mode.

    Acoustic processor having low latency
    49.
    发明授权
    Acoustic processor having low latency 有权

    公开(公告)号：US10390135B2

    公开(公告)日：2019-08-20

    申请号：US15895591

    申请日：2018-02-13

    Applicant: Avnera Corporation

    Inventor： Amit Kumar ,  Thomas Irrgang ,  Xudong Zhao

    IPC: H04R3/00 ,  G10K11/178 ,  H04R1/10

    Abstract: An audio system can include an analog portion having multiple input sensors and an output device, a first digital portion running at a first rate and having a first processor that is electrically coupled with the input sensors and the output device, and a second digital portion running at a second rate that is higher than the first rate and having a second processor that is electrically coupled with the first processor.

    AUTOMATIC SPEAKER RELATIVE LOCATION DETECTION
    50.
    发明申请
    AUTOMATIC SPEAKER RELATIVE LOCATION DETECTION 审中-公开

    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

    IPC: H04S7/00 ,  H04R1/40 ,  H04R5/02 ,  H04R5/04 ,  H04S3/00

    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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