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    HEADSET IN-USE DETECTOR
    3.
    发明申请
    HEADSET IN-USE DETECTOR 审中-公开
    头戴式使用检测器

    公开(公告)号：US20150124977A1

    公开(公告)日：2015-05-07

    申请号：US14074593

    申请日：2013-11-07

    Applicant: QUALCOMM Incorporated

    Inventor： Ankit Srivastava ,  Hyun Jin Park ,  Guoqing Miao

    IPC: H04R29/00 ,  H04R1/10

    CPC classification number: H04R29/00 ,  H04R1/1091 ,  H04R25/305 ,  H04R29/001 ,  H04R2460/03 ,  H04R2460/15

    Abstract: A headset in-use detector is disclosed. In an exemplary embodiment, an apparatus includes a detector configured to receive a sound signal and an echo signal and generate a detection signal, and a controller configured to determine whether or not a headset is in-use based on the detection signal.

    Abstract translation: 公开了一种耳机使用中检测器。 在示例性实施例中，一种装置包括：检测器，被配置为接收声音信号和回波信号并产生检测信号;以及控制器，被配置为基于检测信号确定耳机是否正在使用中。

    DEVICE FOR GENERATING AUDIO OUTPUT
    5.
    发明申请
    DEVICE FOR GENERATING AUDIO OUTPUT 审中-公开

    公开(公告)号：US20170339491A1

    公开(公告)日：2017-11-23

    申请号：US15158505

    申请日：2016-05-18

    Applicant: QUALCOMM Incorporated

    Inventor： Lae-Hoon Kim ,  Hyun Jin Park ,  Erik Visser ,  Raghuveer Peri

    IPC: H04R5/04 ,  H04R5/033 ,  G06F3/16 ,  H04R29/00

    Abstract: A headset device includes a first earpiece configured to receive a reference sound and to generate a first reference audio signal based on the reference sound. The headset device further includes a second earpiece configured to receive the reference sound and to generate a second reference audio signal based on the reference sound. The headset device further includes a controller coupled to the first earpiece and to the second earpiece. The controller is configured to generate a first signal and a second signal based on a phase relationship between the first reference audio signal and the second reference audio signal. The controller is further configured to output the first signal to the first earpiece and output the second signal to the second earpiece.

    Dual diaphragm microphone
    6.
    发明授权
    Dual diaphragm microphone 有权

    公开(公告)号：US09602930B2

    公开(公告)日：2017-03-21

    申请号：US14675384

    申请日：2015-03-31

    Applicant: QUALCOMM Incorporated

    Inventor： Hyun Jin Park

    IPC: H04R19/04 ,  H04R7/02 ,  H04R19/00 ,  H04R1/22 ,  H04R23/00 ,  H04R1/08 ,  H04R3/00

    CPC classification number: H04R7/02 ,  H04R1/08 ,  H04R1/222 ,  H04R3/005 ,  H04R19/005 ,  H04R19/04 ,  H04R23/006 ,  H04R2201/003 ,  H04R2410/05

    Abstract: A dual diaphragm microphone can be used to reduce or eliminate a component of the output signal due to acceleration of the microphone. The dual diaphragm microphone can include a first sound-detecting component including a first diaphragm spaced apart from a first electrode and configured to generate a first signal and a second sound-detecting component including a second diaphragm spaced apart from a second electrode and configured to generate a second signal. The first sound-detecting component and the second sound-detecting component are oriented in opposite directions and include electronic circuitry configured to sum the first and second output signals to generate a combined output signal substantially unaffected by acceleration of the microphone.

    ACTIVE NOISE CANCELLATION FEATURING SECONDARY PATH ESTIMATION
    7.
    发明申请
    ACTIVE NOISE CANCELLATION FEATURING SECONDARY PATH ESTIMATION 审中-公开
    主动噪声消除特征二次路径估计

    公开(公告)号：US20160300563A1

    公开(公告)日：2016-10-13

    申请号：US14684962

    申请日：2015-04-13

    Applicant: QUALCOMM Incorporated

    Inventor： Hyun Jin Park

    IPC: G10K11/175

    CPC classification number: G10K11/178 ,  G10K11/17815 ,  G10K11/17853 ,  G10K11/17879 ,  G10K2210/1081 ,  G10K2210/3022 ,  G10K2210/3028

    Abstract: Techniques for robust estimation of a secondary path transfer function in an active noise cancellation (ANC) system are disclosed. The estimation techniques do not rely on a pilot signal. In addition, the techniques provide good approximations of secondary path transfer functions, and further, they can greatly reduce the risk of instability in feedback ANC systems. In one aspect, a secondary path transfer function estimation method includes receiving a first environmental signal (e.g., a reference microphone signal) and a second environmental signal (e.g., an error microphone signal) at an ANC system. The secondary path transfer function is then estimated based on the first environmental signal and the second environmental signal.

    Abstract translation: 公开了用于有源噪声消除（ANC）系统中二次路径传递函数的鲁棒估计的技术。 估计技术不依赖于导频信号。 此外，这些技术提供了次要路径传递函数的良好近似，此外，它们可以大大降低反馈ANC系统中的不稳定性的风险。 一方面，二次路径传递函数估计方法包括在ANC系统处接收第一环境信号（例如，参考麦克风信号）和第二环境信号（例如，误差麦克风信号）。 然后基于第一环境信号和第二环境信号来估计二次路径传递函数。

    Variable rate adaptive active noise cancellation
    8.
    发明授权
    Variable rate adaptive active noise cancellation 有权
    可变速率自适应有源噪声消除

    公开(公告)号：US09466282B2

    公开(公告)日：2016-10-11

    申请号：US14714839

    申请日：2015-05-18

    Applicant: QUALCOMM Incorporated

    Inventor： Hyun Jin Park ,  Deepak Kumar Challa ,  Catalin Lacatus

    IPC: G10K11/16 ,  G10K11/175 ,  G10K11/178

    CPC classification number: G10K11/175 ,  G10K11/178 ,  G10K11/17835 ,  G10K11/17855 ,  G10K2210/1081 ,  G10K2210/30391 ,  G10K2210/3051 ,  G10K2210/3053

    Abstract: A method of audio signal processing includes determining a difference between a first set of filter parameters of a first input frame of an active noise cancellation (ANC) filter and a second set of filter parameters of a second input frame of the ANC filter. The method further includes selectively modifying a duty cycle of adaptive ANC processing associated with the ANC filter based on the difference between the first set of filter parameters and the second set of filter parameters.

    Abstract translation: 音频信号处理的方法包括确定有源噪声消除（ANC）滤波器的第一输入帧的第一组滤波器参数与ANC滤波器的第二输入帧的第二组滤波器参数之间的差。 该方法还包括基于第一组滤波器参数和第二组滤波器参数之间的差异选择性地修改与ANC滤波器相关联的自适应ANC处理的占空比。

    SYSTEMS AND METHODS FOR FEEDBACK DETECTION
    10.
    发明申请
    SYSTEMS AND METHODS FOR FEEDBACK DETECTION 有权
    用于反馈检测的系统和方法

    公开(公告)号：US20150172815A1

    公开(公告)日：2015-06-18

    申请号：US14192634

    申请日：2014-02-27

    Applicant: QUALCOMM Incorporated

    Inventor： Hyun Jin Park ,  Deepak Kumar Challa

    IPC: H04R3/02

    CPC classification number: H04R3/02 ,  G10K11/17819 ,  G10K11/17833 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3056 ,  H04R25/453 ,  H04R2460/01

    Abstract: A method for feedback detection by an electronic device is described. The method includes receiving a first microphone signal by a first microphone. A feedback loop includes the first microphone and a speaker. The method also includes receiving a second microphone signal by a second microphone that is outside of the feedback loop. A first signal based on the first microphone signal and a second signal based on the second microphone signal exhibit a higher correlation in presence of feedback and exhibit a lower correlation in absence of feedback. The method further includes determining a correlation based on the first microphone signal and the second microphone signal. The method additionally includes determining whether feedback is occurring based on the correlation.

    Abstract translation: 描述了一种由电子设备进行反馈检测的方法。 该方法包括由第一麦克风接收第一麦克风信号。 反馈回路包括第一麦克风和扬声器。 该方法还包括通过在反馈回路外部的第二麦克风接收第二麦克风信号。 基于第一麦克风信号的第一信号和基于第二麦克风信号的第二信号在存在反馈时表现出较高的相关性，并且在没有反馈的情况下表现出较低的相关性。 该方法还包括基于第一麦克风信号和第二麦克风信号来确定相关性。 该方法还包括基于相关性确定反馈是否正在发生。

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