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    Filtering well-defined feedback from a hard-coupled vibrating transducer
    1.
    发明授权
    Filtering well-defined feedback from a hard-coupled vibrating transducer 有权

    公开(公告)号：US10812919B2

    公开(公告)日：2020-10-20

    申请号：US14211576

    申请日：2014-03-14

    Applicant: Cochlear Limited

    Inventor： Martin Hillbratt ,  Marcus Andersson ,  Kristian Asnes

    IPC: H04R25/00

    Abstract: Systems and methods are disclosed for a hearing prosthesis, and more particularly to a hearing prosthesis with a rigidly coupled vibrating transducer. In embodiments, the mechanical stimulating hearing prosthesis comprises, for example, at least one sound input device configured to sense a sound signal, and a transducer configured to generate a vibration based on the sound, wherein the sound input device is rigidly coupled to the transducer. Systems and methods are also described for reducing a well-defined mechanical feedback generated by a transducer in a hearing prosthesis.

    Fitting a bilateral hearing prosthesis system
    2.
    发明授权
    Fitting a bilateral hearing prosthesis system 有权

    公开(公告)号：US10015605B2

    公开(公告)日：2018-07-03

    申请号：US15453370

    申请日：2017-03-08

    Applicant: Cochlear Limited

    Inventor： Mark C. Flynn ,  Martin Hillbratt

    IPC: H04R25/00 ,  H04R3/02

    CPC classification number: H04R25/70 ,  H04R3/02 ,  H04R25/35 ,  H04R25/45 ,  H04R25/453 ,  H04R25/552 ,  H04R2460/13

    Abstract: A hearing prosthesis system includes a processor arranged to communicate a stimulation signal to a vibration stimulator of a first hearing prosthesis. The processor receives an indication of a measured input signal from a first transducer of a second hearing prosthesis. A processor calculates a feedback associated with the stimulation. The processor may also be further configured to adjust a gain table or an input to a feedback reduction algorithm in response to the calculated feedback. Additionally, the processor of the hearing prosthesis system may also be arranged to communicate a second stimulation signal to a vibration stimulator of the second hearing prosthesis. The processor receives an indication of a measured input signal from the first hearing prosthesis. Further, the processor calculates a second feedback associated with the second stimulation.

    Methods, systems, and devices for adaptively filtering audio signals
    5.
    发明授权
    Methods, systems, and devices for adaptively filtering audio signals 有权

    公开(公告)号：US09838804B2

    公开(公告)日：2017-12-05

    申请号：US15050768

    申请日：2016-02-23

    Applicant: Cochlear Limited

    Inventor： Giuliano Bernardi ,  Martin Hillbratt ,  Toon van Waterschoot ,  Alberto Gozzi

    IPC: H04R25/00

    CPC classification number: H04R25/453 ,  H04R2225/41

    Abstract: Systems, methods, and devices for adaptively filtering audio signals are disclosed. An example system includes a microphone configured to generate a first audio signal in response to receiving a sound, an output transducer configured to provide an output, and a sound processor configured to: (i) filter a first sample of the audio input signal using an adaptive filter to provide a first filtered audio input signal, with the dynamic range of the adaptive filter being limited by an initial value of at least one parameter filter; (ii) process the first filtered audio signal to provide a output audio signal; and (iii) cause the output transducer to provide an output that is based at least in part on the output audio signal. Adaptive signal modeling may be used to update the adaptive filter, with model and the initial value of at least one parameter filter being based on environmental classifier.

    Methods, systems, and device for remotely-processing audio signals
    7.
    发明授权
    Methods, systems, and device for remotely-processing audio signals 有权

    公开(公告)号：US10028065B2

    公开(公告)日：2018-07-17

    申请号：US15165071

    申请日：2016-05-26

    Applicant: Cochlear Limited

    Inventor： Michael Goorevich ,  Martin Hillbratt

    IPC: H04R3/00 ,  H04R25/00

    Abstract: Disclosed herein are methods, systems, and devices for remotely-processing one or more audio signals received at a hearing device. An example method includes a hearing device receiving from a media device a command to send to the media device an audio signal. Responsive to at least the command, the method includes the hearing device sending to the media device the audio signal. The method also includes the hearing device receiving from the media device a remotely-processed signal. Data included in the remotely-processed signals is based on audio data included in the audio signal. Based on at least the remotely-processed signal, the method includes the hearing device generating a stimulation signal and using the stimulation signal to deliver at least one stimulus to a recipient of the hearing device.

    Frequency based feedback control
    8.
    发明授权
    Frequency based feedback control 有权

    公开(公告)号：US09967680B2

    公开(公告)日：2018-05-08

    申请号：US15138488

    申请日：2016-04-26

    Applicant: Cochlear Limited

    Inventor： Mats Höjlund ,  Martin Hillbratt

    IPC: H04R25/00 ,  G10L21/0232

    CPC classification number: H04R25/353 ,  G10L21/0232 ,  H04R25/453 ,  H04R25/505 ,  H04R25/606

    Abstract: Disclosed herein is a feedback reduction system for used in a hearing prosthesis. The hearing prosthesis will receive an input signal, process the input signal, and create a transformed output. However, the hearing prosthesis may suffer from feedback. Thus, a system to minimize the feedback in a hearing prosthesis may be desirable. One system to minimize the feedback includes down-sample circuitry configured to down-sample a first signal, creating a down-sampled signal. They system also includes a filter circuit. The filter circuit filters both the first signal and the down-sampled signal. The filter will output a filtered signal and a filtered down-sampled signal, respectively. Additionally, the system features up-sample circuitry that up-samples the filtered down-sampled signal. The output of the up-sample circuitry is an up-sampled signal. Further, the system features combining circuitry that creates a feedback-reduced signal based on the up-sampled signal, the filtered signal, and an input signal.

    Frequency based feedback control
    9.
    发明授权
    Frequency based feedback control 有权
    基于频率的反馈控制

    公开(公告)号：US09351085B2

    公开(公告)日：2016-05-24

    申请号：US13741297

    申请日：2013-01-14

    Applicant: Cochlear Limited

    Inventor： Mats Höjlund ,  Martin Hillbratt

    IPC: H04R25/00

    CPC classification number: H04R25/353 ,  G10L21/0232 ,  H04R25/453 ,  H04R25/505 ,  H04R25/606

    Abstract: Disclosed herein is a feedback reduction system for used in a hearing prosthesis. The hearing prosthesis will receive an input signal, process the input signal, and create a transformed output. However, the hearing prosthesis may suffer from feedback. Thus, a system to minimize the feedback in a hearing prosthesis may be desirable. One system to minimize the feedback includes down-sample circuitry configured to down-sample a first signal, creating a down-sampled signal. They system also includes a filter circuit. The filter circuit filters both the first signal and the down-sampled signal. The filter will output a filtered signal and a filtered down-sampled signal, respectively. Additionally, the system features up-sample circuitry that up-samples the filtered down-sampled signal. The output of the up-sample circuitry is an up-sampled signal. Further, the system features combining circuitry that creates a feedback-reduced signal based on the up-sampled signal, the filtered signal, and an input signal.

    Abstract translation: 这里公开了一种用于听觉假体的反馈减少系统。 听觉假体将接收输入信号，处理输入信号，并创建变换输出。 然而，听力假体可能受到反馈。 因此，可以期望使听力假体中的反馈最小化的系统。 将反馈最小化的一个系统包括配置成对第一信号进行下采样的下采样电路，产生下采样信号。 它们还包括一个滤波电路。 滤波电路对第一信号和下采样信号进行滤波。 滤波器将分别输出滤波后的信号和滤波的下采样信号。 此外，该系统具有对采样后的采样电路进行采样，该采样电路对滤波后的采样信号进行采样。 上采样电路的输出是上采样信号。 此外，该系统具有组合电路，其基于上采样信号，滤波信号和输入信号产生反馈减小信号。

    Methods, systems, and devices for detecting feedback
    10.
    发明授权
    Methods, systems, and devices for detecting feedback 有权
    用于检测反馈的方法，系统和设备

    公开(公告)号：US09020172B2

    公开(公告)日：2015-04-28

    申请号：US14217332

    申请日：2014-03-17

    Applicant: Cochlear Limited

    Inventor： Martin Hillbratt ,  Mats Höjlund

    IPC: H04R25/00

    CPC classification number: H04R25/453 ,  H04R25/606

    Abstract: Systems, methods, and devices are disclosed. An example sound processor is disclosed. The example sound processor includes a module configured to identify a feedback artifact in a current sample of an input spectral component by determining that a change in a signal level of an input spectral component is approximately equal to a predicted change. The predicted change may be based on one or more characteristics of an external feedback loop. Responsive to identifying the feedback artifact, the sound processor is further configured to apply a modification to a parameter used to process the input spectral component. The modification reduces a likelihood of including audible feedback in a processed input spectral component.

    Abstract translation: 公开了系统，方法和设备。 公开了一个示例声音处理器。 示例声音处理器包括被配置为通过确定输入频谱分量的信号电平的变化近似等于预测的变化来识别输入频谱分量的当前样本中的反馈伪影的模块。 预测的变化可以基于外部反馈回路的一个或多个特性。 响应于识别反馈伪像，声音处理器还被配置为对用于处理输入频谱分量的参数应用修改。 该修改减少了在经处理的输入频谱分量中包括可听反馈的可能性。

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