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公开(公告)号：US20100234920A1
公开(公告)日：2010-09-16
申请号：US12765649
申请日：2010-04-22
申请人： Aniket Saoji , Leonid M. Litvak , Gene Y. Fridman
发明人： Aniket Saoji , Leonid M. Litvak , Gene Y. Fridman
CPC分类号： H04R25/70 , A61N1/36036
摘要： Psychophysical tests are administered to cochlear implant (CI) users to determine a spectral modulation transfer function (SMTF), smallest detectable spectral contrast as a function of spectral modulation frequency, for each individual CI user. The determined SMTF for individual CI user is compared against a SMTF of a normal hearing person to determine the specific enhancements needed. A profile of spectral enhancement achievable with variation of filter parameters, sigma and maximum that best fits the needed enhancements for the individual CI user is selected. Based on the corresponding sigma and maximum selected, a sound processing strategy is adjusted to provide customized spectral contrast enhancement for the individual CI user. The sound processing strategy implemented includes an outer hair cell model.
摘要翻译： 对于每个个体CI用户，对耳蜗植入（CI）用户施加心理物理测试以确定频谱调制传递函数（SMTF），作为频谱调制频率的函数的最小可检测频谱对比度。 将针对个人CI用户的确定的SMTF与正常听力者的SMTF进行比较，以确定所需的特定增强。 选择可以通过滤波器参数，西格玛和最大值的变化实现的最佳匹配单个CI用户所需增强的频谱增强曲线。 基于相应的西格玛和最大选择，调整声音处理策略，为个人CI用户提供定制的光谱对比度增强。 实施的声音处理策略包括外毛细胞模型。
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2.发明授权公开(公告)号：US07242985B1
公开(公告)日：2007-07-10
申请号：US11003155
申请日：2004-12-03
申请人： Gene Y. Fridman , Leonid M. Litvak
发明人： Gene Y. Fridman , Leonid M. Litvak
CPC分类号： H04S3/002 , A61N1/36036 , G10L21/02 , G10L2021/065
摘要： Contrast between various frequency components of sound is enhanced through a lateral suppression strategy to provide increased speech perception in the electrically stimulated cochlea. A received audio signal is divided into a plurality of input signals, wherein each input signal is associated with a frequency band. A plurality of envelope signals are generated by determining the envelope of each of a plurality of the input signals. At least one of the envelope signals is scaled in accordance with a scaling factor to generate at least one scaled envelope signal. An output signal is generated by combining at least one envelope signal with at least one scaled envelope signal, and the cochlea is stimulated based on the generated output signal. The lateral suppression strategy can be applied to one or more frequency bands using scaled amplitude signals associated with one or more neighboring frequency bands.
摘要翻译： 通过横向抑制策略来增强声音的各种频率分量之间的对比，以在电刺激的耳蜗中提供增加的语音感知。 接收到的音频信号被分成多个输入信号，其中每个输入信号与频带相关联。 通过确定多个输入信号中的每一个的包络来生成多个包络信号。 根据缩放因子来缩放包络信号中的至少一个，以产生至少一个缩放的包络信号。 通过将至少一个包络信号与至少一个缩放的包络信号组合来产生输出信号，并且基于所生成的输出信号来刺激耳蜗。 横向抑制策略可以使用与一个或多个相邻频带相关联的缩放振幅信号应用于一个或多个频带。
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公开(公告)号：US08295937B2
公开(公告)日：2012-10-23
申请号：US13225981
申请日：2011-09-06
申请人： Gene Y. Fridman , Leonid M. Litvak
发明人： Gene Y. Fridman , Leonid M. Litvak
CPC分类号： A61N1/36036
摘要： Optimizing pitch allocation in a cochlear stimulation system may include implanting an electrode array having a plurality of electrodes into the cochlea of a patient, where the electrode array has an associated implant fitting characteristic that defines a relationship between the implanted electrode array and audio frequencies, presenting sounds through the electrode array to the patient, receiving from the patient a selection of one of the sounds that most closely conforms to a single note, and determining a slope of the implant fitting characteristic of the electrode array based on the sound selected by the patient. Each sound may include a fundamental frequency and one or more harmonics. The optimization may also include changing a center frequency of a band pass filter associated with each electrode based on the determined slope.
摘要翻译： 在耳蜗刺激系统中优化音调分配可以包括将具有多个电极的电极阵列植入到患者的耳蜗中，其中电极阵列具有限定植入的电极阵列和音频之间的关系的相关联的植入拟合特征，呈现 通过电极阵列向患者发出声音，从患者接收最接近于单个音符的声音之一的选择，以及基于由患者选择的声音来确定电极阵列的植入物拟合特征的斜率 。 每个声音可以包括基频和一个或多个谐波。 优化还可以包括基于确定的斜率改变与每个电极相关联的带通滤波器的中心频率。
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公开(公告)号：US08027733B1
公开(公告)日：2011-09-27
申请号：US11262055
申请日：2005-10-28
申请人： Gene Y. Fridman , Leonid M. Litvak
发明人： Gene Y. Fridman , Leonid M. Litvak
CPC分类号： A61N1/36036
摘要： Optimizing pitch allocation in a cochlear stimulation system may include implanting an electrode array having a plurality of electrodes into the cochlea of a patient, where the electrode array has an associated implant fitting characteristic that defines a relationship between the implanted electrode array and audio frequencies, presenting sounds through the electrode array to the patient, receiving from the patient a selection of one of the sounds that most closely conforms to a single note, and determining a slope of the implant fitting characteristic of the electrode array based on the sound selected by the patient. Each sound may include a fundamental frequency and one or more harmonics. The optimization may also include changing a center frequency of a band pass filter associated with each electrode based on the determined slope.
摘要翻译： 在耳蜗刺激系统中优化音调分配可以包括将具有多个电极的电极阵列植入到患者的耳蜗中，其中电极阵列具有限定植入的电极阵列和音频之间的关系的相关联的植入拟合特征，呈现 通过电极阵列向患者发出声音，从患者接收最接近于单个音符的声音之一的选择，以及基于由患者选择的声音来确定电极阵列的植入物拟合特征的斜率 。 每个声音可以包括基频和一个或多个谐波。 优化还可以包括基于确定的斜率改变与每个电极相关联的带通滤波器的中心频率。
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5.发明授权公开(公告)号：US07522961B2
公开(公告)日：2009-04-21
申请号：US10992390
申请日：2004-11-17
申请人： Gene Y. Fridman , Leonid M. Litvak
发明人： Gene Y. Fridman , Leonid M. Litvak
CPC分类号： A61N1/36032 , A61N1/36036
摘要： The stimulation provided in the electrically stimulated cochlea is modulated in accordance with the amplitude of a received acoustic signal and the onset of a sound in a received acoustic signal to provide increased sound perception. An onset time that corresponds to the onset of a sound is detected in an acoustic signal associated with a frequency band. A forcing voltage and a transmitting factor are determined, wherein the forcing voltage and the transmitting factor are associated with the frequency band at the detected onset time. The acoustic signal is modulated as a function of the forcing voltage and the transmitting factor to generate an output signal. The generated output signal can be used to stimulate the cochlea. The modulation strategy can be used in conjunction with sound processing strategies that employ frequency modulation, amplitude modulation, or a combination of frequency and amplitude modulation.
摘要翻译： 在电刺激耳蜗中提供的刺激根据接收到的声信号的振幅和接收的声信号中的声音的开始进行调制以提供增加的声音感知。 在与频带相关联的声信号中检测对应于声音开始的开始时间。 确定强制电压和发射因子，其中强制电压和发射因子在检测到的起始时间与频带相关联。 声信号作为强制电压和发射因子的函数被调制以产生输出信号。 所产生的输出信号可用于刺激耳蜗。 调制策略可以与使用频率调制，幅度调制或频率和幅度调制的组合的声音处理策略结合使用。
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6.发明授权公开(公告)号：US08121700B1
公开(公告)日：2012-02-21
申请号：US12418478
申请日：2009-04-03
IPC分类号： A61N1/00
CPC分类号： A61N1/36036
摘要： Sound processing strategies for use with cochlear implant systems utilizing simultaneous stimulation of electrodes are provided. The strategies include computing a frequency spectrum of a signal representative of sound, arranging the spectrum into channels and assigning a subset of electrodes to each channel. Each subset is stimulated so as to stimulate a virtual electrode positioned at a location on the cochlea that corresponds to the frequency at which a spectral peak is located within an assigned channel. The strategies also derive a carrier for a channel having a frequency that may relate to the stimulation frequency so that temporal information is presented. In order to fit these strategies, a group of electrodes is selected and the portion of the current that would otherwise be applied to electrode(s) having a partner electrode in the group is applied to the partner electrode.
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7.发明授权Sound processing and stimulation systems and methods for use with cochlear implant devices 有权用于耳蜗植入装置的声音处理和刺激系统和方法公开(公告)号：US07983758B1
公开(公告)日：2011-07-19
申请号：US12418471
申请日：2009-04-03
IPC分类号： A61N1/00
CPC分类号： A61N1/36036
摘要： Sound processing strategies for use with cochlear implant systems utilizing simultaneous stimulation of electrodes are provided. The strategies include computing a frequency spectrum of a signal representative of sound, arranging the spectrum into channels and assigning a subset of electrodes to each channel. Each subset is stimulated so as to stimulate a virtual electrode positioned at a location on the cochlea that corresponds to the frequency at which a spectral peak is located within an assigned channel. The strategies also derive a carrier for a channel having a frequency that may relate to the stimulation frequency so that temporal information is presented. In order to fit these strategies, a group of electrodes is selected and the portion of the current that would otherwise be applied to electrode(s) having a partner electrode in the group is applied to the partner electrode.
摘要翻译： 提供了用于同时刺激电极的人工耳蜗植入系统的声音处理策略。 该策略包括计算表示声音的信号的频谱，将频谱排列成通道并将电极的子集分配给每个通道。 刺激每个子集，以便刺激位于耳蜗上位于分配频道内的频谱峰位置处的频率的虚拟电极。 该策略还导出具有可以与刺激频率相关的频率的信道的载波，从而呈现时间信息。 为了适应这些策略，选择一组电极，否则将施加到组中具有配对电极的电极的电流部分被施加到配对电极。
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8.发明授权Sound processing and stimulation systems and methods for use with cochlear implant devices 有权用于耳蜗植入装置的声音处理和刺激系统和方法公开(公告)号：US07426414B1
公开(公告)日：2008-09-16
申请号：US11080935
申请日：2005-03-14
IPC分类号： A61N1/32
CPC分类号： A61N1/36036
摘要： Sound processing strategies for use with cochlear implant systems utilizing simultaneous stimulation of electrodes are provided. The strategies include computing a frequency spectrum of a signal representative of sound, arranging the spectrum into channels and assigning a subset of electrodes to each channel. Each subset is stimulated so as to stimulate a virtual electrode positioned at a location on the cochlea that corresponds to the frequency at which a spectral peak is located within an assigned channel. The strategies also derive a carrier for a channel having a frequency that may relate to the stimulation frequency so that temporal information is presented. In order to fit these strategies, a group of electrodes is selected and the portion of the current that would otherwise be applied to electrode(s) having a partner electrode in the group is applied to the partner electrode.
摘要翻译： 提供了用于同时刺激电极的人工耳蜗植入系统的声音处理策略。 该策略包括计算表示声音的信号的频谱，将频谱排列成通道并将电极的子集分配给每个通道。 刺激每个子集，以便刺激位于耳蜗上位于分配频道内的频谱峰位置处的频率的虚拟电极。 该策略还导出具有可以与刺激频率相关的频率的信道的载波，从而呈现时间信息。 为了适应这些策略，选择一组电极，否则将施加到组中具有配对电极的电极的电流部分被施加到配对电极。
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9.发明授权公开(公告)号：US08126565B1
公开(公告)日：2012-02-28
申请号：US12418428
申请日：2009-04-03
IPC分类号： A61N1/00
CPC分类号： A61N1/36036
摘要： Sound processing strategies for use with cochlear implant systems utilizing simultaneous stimulation of electrodes are provided. The strategies include computing a frequency spectrum of a signal representative of sound, arranging the spectrum into channels and assigning a subset of electrodes to each channel. Each subset is stimulated so as to stimulate a virtual electrode positioned at a location on the cochlea that corresponds to the frequency at which a spectral peak is located within an assigned channel. The strategies also derive a carrier for a channel having a frequency that may relate to the stimulation frequency so that temporal information is presented. In order to fit these strategies, a group of electrodes is selected and the portion of the current that would otherwise be applied to electrode(s) having a partner electrode in the group is applied to the partner electrode.
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10.发明授权Sound processing and stimulation systems and methods for use with cochlear implant devices 有权用于耳蜗植入装置的声音处理和刺激系统和方法公开(公告)号：US08121699B1
公开(公告)日：2012-02-21
申请号：US12418473
申请日：2009-04-03
IPC分类号： A61N1/00
CPC分类号： A61N1/36036
摘要： Sound processing strategies for use with cochlear implant systems utilizing simultaneous stimulation of electrodes are provided. The strategies include computing a frequency spectrum of a signal representative of sound, arranging the spectrum into channels and assigning a subset of electrodes to each channel. Each subset is stimulated so as to stimulate a virtual electrode positioned at a location on the cochlea that corresponds to the frequency at which a spectral peak is located within an assigned channel. The strategies also derive a carrier for a channel having a frequency that may relate to the stimulation frequency so that temporal information is presented. In order to fit these strategies, a group of electrodes is selected and the portion of the current that would otherwise be applied to electrode(s) having a partner electrode in the group is applied to the partner electrode.
摘要翻译： 提供了用于同时刺激电极的人工耳蜗植入系统的声音处理策略。 该策略包括计算表示声音的信号的频谱，将频谱排列成通道并将电极的子集分配给每个通道。 刺激每个子集，以便刺激位于耳蜗上位于分配频道内的频谱峰位置处的频率的虚拟电极。 该策略还导出具有可以与刺激频率相关的频率的信道的载波，从而呈现时间信息。 为了适应这些策略，选择一组电极，否则将施加到组中具有配对电极的电极的电流部分被施加到配对电极。
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