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1.发明申请公开(公告)号：US20060177079A1
公开(公告)日：2006-08-10
申请号：US11377678
申请日：2006-03-17
IPC分类号： H04R25/00
CPC分类号： H04R25/407 , H04R25/40 , H04R25/405 , H04R2225/43
摘要： A signal processing apparatus (100) for a hearing aid with a controllable directional characteristic is provided which comprises a directional controller (10) receiving first and second microphone signals (20, 30) and output an output signal (40), a signal analyzer (70) which detects whether at least one of said first and second microphone signals being undesired signals, and wherein said directional controller minimizes the output signal by adjusting the directional characteristic only if the signal analyzer has detected undesired signals.
摘要翻译： 提供了一种用于具有可控方向特性的助听器的信号处理设备（100），该信号处理设备包括：方向控制器（10），接收第一和第二麦克风信号（20,30）并输出输出信号（40），信号分析器 70），其检测所述第一麦克风信号和第二麦克风信号中的至少一个是不期望的信号，并且其中所述方向控制器仅在所述信号分析器已经检测到不期望的信号时通过调整所述方向特性来使所述输出信号最小化。
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2.发明授权公开(公告)号：US08600086B2
公开(公告)日：2013-12-03
申请号：US13044959
申请日：2011-03-10
IPC分类号： H04R25/00
CPC分类号： H04R25/407 , H04R25/40 , H04R25/405 , H04R2225/43
摘要： A signal processing apparatus (100) for a hearing aid with a controllable directional characteristic is provided which comprises a directional controller (10) receiving first and second microphone signals (20, 30) and output an output signal (40), a signal analyzer (70) which detects whether at least one of said first and second microphone signals being undesired signals, and wherein said directional controller minimizes the output signal by adjusting the directional characteristic only if the signal analyzer has detected undesired signals.
摘要翻译： 提供了一种用于具有可控方向特性的助听器的信号处理设备（100），该信号处理设备（100）包括方向控制器（10），接收第一和第二麦克风信号（20,30）并输出输出信号（40），信号分析器 70），其检测所述第一麦克风信号和第二麦克风信号中的至少一个是不期望的信号，并且其中所述方向控制器仅在所述信号分析器已经检测到不期望的信号时通过调整所述方向特性来使所述输出信号最小化。
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3.发明授权公开(公告)号：US07933423B2
公开(公告)日：2011-04-26
申请号：US11377678
申请日：2006-03-17
IPC分类号： H04R25/00
CPC分类号： H04R25/407 , H04R25/40 , H04R25/405 , H04R2225/43
摘要： A signal processing apparatus (100) for a hearing aid with a controllable directional characteristic is provided which comprises a directional controller (10) receiving first and second microphone signals (20, 30) and output an output signal (40), a signal analyzer (70) which detects whether at least one of said first and second microphone signals being undesired signals, and wherein said directional controller minimizes the output signal by adjusting the directional characteristic only if the signal analyzer has detected undesired signals.
摘要翻译： 提供了一种用于具有可控方向特性的助听器的信号处理设备（100），该信号处理设备（100）包括方向控制器（10），接收第一和第二麦克风信号（20,30）并输出输出信号（40），信号分析器 70），其检测所述第一麦克风信号和第二麦克风信号中的至少一个是不期望的信号，并且其中所述方向控制器仅在所述信号分析器已经检测到不期望的信号时通过调整所述方向特性来使所述输出信号最小化。
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公开(公告)号：US08189833B2
公开(公告)日：2012-05-29
申请号：US12100539
申请日：2008-04-10
申请人： Kristian Tjalfe Klinkby , Jorgen Cederberg , Helge Pontoppidan Foeh , Peter Magnus Norgaard , Thilo Volker Thiede
发明人： Kristian Tjalfe Klinkby , Jorgen Cederberg , Helge Pontoppidan Foeh , Peter Magnus Norgaard , Thilo Volker Thiede
IPC分类号： H04R25/00
CPC分类号： H04R25/453 , H04R25/407
摘要： A hearing aid comprises two microphones, directional processing means for combining the respective audio signals to form a spatial signal, a beamformer for controlling the directional processing means to provide adaptation of the spatial signal, and means for boosting low frequencies of the spatial signal. A feedback estimator generates a feedback compensation signal, which is combined with the boosted spatial signal. By applying feedback compensation only after directional processing and low frequency boosting, the device avoids interference by the feedback estimator with the function of the beamformer. The invention also provides a method of processing signals in a hearing aid.
摘要翻译： 助听器包括两个麦克风，用于组合各个音频信号以形成空间信号的定向处理装置，用于控制方向处理装置以提供空间信号的自适应的波束形成器，以及用于升高空间信号的低频的装置。 反馈估计器产生与升压的空间信号组合的反馈补偿信号。 通过仅在定向处理和低频提升后应用反馈补偿，该装置可以避免反馈估计器与波束形成器的功能的干扰。 本发明还提供一种在助听器中处理信号的方法。
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公开(公告)号：US08019104B2
公开(公告)日：2011-09-13
申请号：US11763767
申请日：2007-06-15
IPC分类号： H04R25/00
CPC分类号： H04R25/453
摘要： A hearing aid includes an input transducer for transforming an acoustic input signal into an electrical input signal, a processor for generating an electrical output signal by amplifying the electrical input signal with a processor gain, an output transducer for transforming the electrical output signal into an acoustic output signal, an adaptive feedback suppression filter for generating a feedback cancellation signal, and a model gain estimator generating an upper processor gain limit and for providing a control parameter indicating a possible misadjustment of the model.
摘要翻译： 助听器包括用于将声输入信号变换为电输入信号的输入换能器，用于通过用处理器增益放大电输入信号来产生电输出信号的处理器，用于将电输出信号变换成声学的输出换能器 输出信号，用于产生反馈消除信号的自适应反馈抑制滤波器，以及产生上位处理器增益限制的模型增益估计器，以及用于提供指示模型可能的不正确调整的控制参数。
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公开(公告)号：US07933424B2
公开(公告)日：2011-04-26
申请号：US11514081
申请日：2006-09-01
IPC分类号： H04R25/00
CPC分类号： H04R25/453
摘要： A hearing aid comprises an input transducer (2), a subtraction node for subtracting a feedback cancellation signal from the electrical input signal thereby generating a processor input signal, a signal processor (3), an output transducer (4), a pair of equalization filters (7a, 7b) for selecting from the processor input and output signals a plurality of frequency band signals, a frequency equalization unit for frequency equalization for the selected frequency band signals, and an adaptive feedback estimation filter (5, 6) for adaptively deriving the feedback cancellation signal from the equalized frequency band signals. The equalization of selected frequency bands of the input signals of the adaptive feedback cancellation filter provides for an improved and in particular a faster adaption of the feedback cancellation. The invention further provides a method of reducing acoustic feedback of a hearing aid, and a hearing aid circuit.
摘要翻译： 助听器包括输入换能器（2），用于从电输入信号中减去反馈消除信号从而产生处理器输入信号的减法节点，信号处理器（3），输出换能器（4），一对均衡 用于从处理器中选择输入和输出信号的多个频带信号的滤波器（7a，7b），用于所选频带信号的频率均衡的频率均衡单元和用于自适应地导出的自适应反馈估计滤波器（5,6） 来自均衡频带信号的反馈消除信号。 自适应反馈消除滤波器的输入信号的所选频带的均衡提供了改进的，特别是更快地适应反馈消除。 本发明还提供一种降低助听器和助听器电路的声反馈的方法。
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7.发明申请公开(公告)号：US20080253596A1
公开(公告)日：2008-10-16
申请号：US12100539
申请日：2008-04-10
申请人： Kristian Tjalfe Klinkby , Jorgen Cederberg , Helge Pontoppidan Foeh , Peter Magnus Norgaard , Thilo Volker Thiede
发明人： Kristian Tjalfe Klinkby , Jorgen Cederberg , Helge Pontoppidan Foeh , Peter Magnus Norgaard , Thilo Volker Thiede
IPC分类号： H04R25/00
CPC分类号： H04R25/453 , H04R25/407
摘要： A hearing aid comprises two microphones, directional processing means for combining the respective audio signals to form a spatial signal, a beamformer for controlling the directional processing means to provide adaptation of the spatial signal, and means for boosting low frequencies of the spatial signal. A feedback estimator generates a feedback compensation signal, which is combined with the boosted spatial signal. By applying feedback compensation only after directional processing and low frequency boosting, the device avoids interference by the feedback estimator with the function of the beamformer. The invention also provides a method of processing signals in a hearing aid.
摘要翻译： 助听器包括两个麦克风，用于组合各个音频信号以形成空间信号的定向处理装置，用于控制方向处理装置以提供空间信号的自适应的波束形成器，以及用于升高空间信号的低频的装置。 反馈估计器产生与升压的空间信号组合的反馈补偿信号。 通过仅在定向处理和低频提升后应用反馈补偿，该装置可以避免反馈估计器与波束形成器的功能的干扰。 本发明还提供一种在助听器中处理信号的方法。
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8.发明授权公开(公告)号：US08442250B2
公开(公告)日：2013-05-14
申请号：US12238739
申请日：2008-09-26
IPC分类号： H04R25/00
CPC分类号： H04R25/453 , H04R2430/03
摘要： A hearing aid includes a signal path for receiving at least one audio input signal and an autocorrelation index (ACI) estimator (4). The ACI includes a down-sampler for producing a sampling-rate reduced signal of the audio input signal, a sign extractor for extracting a sign signal of the sampling rate reduced signal, a memory and delay for producing and storing delayed versions of the sign signal, a comparator for comparing a subset of the delayed versions of the sign signal with a version of the non-delayed audio input signal, and an averager for averaging the outputs of the comparator to extract delay specific estimates of the audio signal self-resemblance. An autocorrelation estimator obtains an estimated autocorrelation index by determining summarized features from the delay specific estimates of the audio signal self-resemblance. Also disclosed is a method and a computer program for controlling signal processing in a hearing aid.
摘要翻译： 助听器包括用于接收至少一个音频输入信号和自相关索引（ACI）估计器（4）的信号路径。 ACI包括用于产生音频输入信号的采样率降低信号的下采样器，用于提取采样率降低信号的符号信号的符号提取器，用于产生和存储符号信号的延迟版本的存储器和延迟 比较器，用于将符号信号的延迟版本的子集与非延迟音频输入信号的版本进行比较;以及平均器，用于对比较器的输出进行平均以提取音频信号自相似性的延迟特定估计。 自相关估计器通过从音频信号自相似性的延迟特定估计中确定总结特征来获得估计的自相关索引。 还公开了一种用于控制助听器中的信号处理的方法和计算机程序。
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公开(公告)号：US08379894B2
公开(公告)日：2013-02-19
申请号：US12185895
申请日：2008-08-05
IPC分类号： H04R25/00
CPC分类号： H04R25/453 , H04R3/02
摘要： A hearing aid comprises an input transducer (2) for deriving an electrical input signal from an acoustic input, a signal processor (3) for generating an electric output signal, an output transducer (4) for transforming the electrical output signal into an acoustic output, an adaptive estimation filter (5) for generating a feedback estimation signal, at least one first adaptive narrow-band filter (8) for narrow-band-filtering an input signal of the signal processor (3) at least one second adaptive narrow-band filter (9) for narrow-band-filtering a reference signal corresponding to an input signal of the adaptive estimation filter (5), and an adaptation mechanism (6) for updating the filter coefficients of the adaptive estimation filter (5) based on the output signals of the first and second narrow-band filters. The invention further provides a method for reducing acoustic feedback and an electronic circuit.
摘要翻译： 助听器包括用于从声输入端导出电输入信号的输入变换器（2），用于产生电输出信号的信号处理器（3），用于将电输出信号变换成声输出的输出变换器（4） ，用于产生反馈估计信号的自适应估计滤波器（5），至少一个用于对所述信号处理器（3）的输入信号进行窄带滤波的至少一个第二自适应窄带滤波器（8） 用于对与所述自适应估计滤波器（5）的输入信号相对应的参考信号进行窄带滤波的带通滤波器（9）;以及用于基于所述自适应估计滤波器（5）的滤波器系数来更新所述自适应估计滤波器 第一和第二窄带滤波器的输出信号。 本发明还提供一种减少声反馈和电子电路的方法。
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10.发明授权Hearing aid with enhanced high frequency reproduction and method for processing an audio signal 有权具有增强的高频再现的助听器和用于处理音频信号的方法公开(公告)号：US08031892B2
公开(公告)日：2011-10-04
申请号：US11960694
申请日：2007-12-19
IPC分类号： H04R25/00
CPC分类号： H04R25/353 , H04R2225/43
摘要： A hearing aid (50) comprises means (55, 56, 57, 58) for reproducing frequencies above the upper frequency limit of a hearing impaired user. The hearing aid (50) according to the invention comprises means (55, 57) for transposing higher bands of frequencies from outside the upper frequency limit of a hearing impaired user down in frequency based on a detected frequency in order to coincide with a lower band of frequencies within the frequency range perceivable by the hearing impaired user. The transposing means (55, 57) comprise an adaptive notch filter (15) for detecting a dominant frequency in the lower band of frequencies, adaptation means (16) controlled by the adaptive notch filter (15), an oscillator (3) controlled by the adaptation means (16), and a multiplier (4) for performing the actual frequency transposition of the signal. The invention further provides a method for processing a signal in a hearing aid.
摘要翻译： 助听器（50）包括用于再现高于听力受损用户的上限频率的频率的装置（55,56,57,58）。 根据本发明的助听器（50）包括用于基于检测到的频率将频率从听力受损用户的上限频率以外的频率转移到频率以下的装置（55,57），以便与较低频带重合 的听觉受损用户可感知的频率范围内。 转置装置（55,57）包括用于检测低频带中的主频率的自适应陷波滤波器（15），由自适应陷波滤波器（15）控制的自适应装置（16），由 适配装置（16）和用于执行信号的实际频率转置的乘法器（4）。 本发明还提供一种用于处理助听器中的信号的方法。
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