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    • 1. 发明申请
    • FEEDBACK CANCELLATION FOR A HEARING DEVICE USING AN ADAPTIVE FILTER
    • 使用自适应滤波器的听觉设备的反馈消除
    • WO2010040863A3
    • 2011-03-17
    • PCT/EP2010050429
    • 2010-01-15
    • PHONAK AGBRUECKNER ANDREAKORL SASCHACERNY ROBERT
    • BRUECKNER ANDREAKORL SASCHACERNY ROBERT
    • H04R25/00
    • H04R25/453
    • A method for operating a hearing device comprising the steps of generating an input signal (5) of an acoustic signal (3) by an input transducer (1), generating an output signal (7) by applying a gain function (G) to the input signal (5) or a corrected input signal (6), generating an acoustic output signal (4) of the output signal (7) by an output transducer (2), estimating a feedback transfer function (F') describing an acoustic feedback path (10) from the output transducer (2) to the input transducer (1), taking into account the corrected input signal (6), the output signal (7) and an adapting speed (v), generating an estimated feedback signal (9) by applying the output signal (7) to the estimated feedback transfer function (F'), subtracting the estimated feedback signal (9) from the input signal (5) to obtain the corrected input signal (6), and adjusting the adapting speed (v) for adapting the estimated feedback transfer function (F') to changing feedback conditions.
    • 一种用于操作听力装置的方法,包括以下步骤:通过输入换能器(1)产生声信号(3)的输入信号(5);通过对增益函数(G)施加增益函数(G)产生输出信号 输入信号(5)或校正输入信号(6),通过输出变换器(2)产生输出信号(7)的声输出信号(4),估计描述声反馈的反馈传递函数(F') 考虑校正的输入信号(6),输出信号(7)和适应速度(v),产生估计的反馈信号(10),从输出变换器(2)到输入变换器(1)的路径(10) 通过将输出信号(7)应用于估计的反馈传递函数(F'),从输入信号(5)中减去估计反馈信号(9)以获得校正的输入信号(6),并且调整适应 速度(v)用于使估计的反馈传递函数(F')适应于改变的反馈条件。
    • 2. 发明申请
    • METHOD FOR FEEDBACK CANCELLING IN A HEARING DEVICE AND A HEARING DEVICE
    • 用于在听觉设备中取消消息的方法和听觉设备
    • WO2007125132A3
    • 2008-04-10
    • PCT/EP2007054942
    • 2007-05-22
    • PHONAK AGKORL SASCHA
    • KORL SASCHA
    • H04R25/00H04R3/02
    • H04R25/453H04R3/02
    • A method and a hearing device for cancelling or preventing feedback are disclosed. The hearing device comprises a microphone (1), a transfer function (2) and a receiver (3), wherein the transfer function (2) defines relation between an input signal (12) of the hearing device and an output signal (13, 13') of the hearing device. The method according to the present invention comprises the steps of estimating an external transfer function (21) of an external feedback path (11) defined by sound traveling from the receiver (3) to the microphone (1), estimating the input signal (12') having no feedback components of the external feedback path (11) using an auxiliary signal (15), which does not comprise feedback components of the external feedback path (11), and using the estimated input signal (14) for estimating the external transfer function (21) of the external feedback path (11).
    • 公开了一种消除或防止反馈的方法和听力装置。 听力装置包括麦克风(1),传递函数(2)和接收器(3),其中传递函数(2)定义了听力设备的输入信号(12)与输出信号(13, 13')。 根据本发明的方法包括以下步骤:估计由从接收器(3)传播到麦克风(1)的声音限定的外部反馈路径(11)的外部传递函数(21),估计输入信号 使用不包括外部反馈路径(11)的反馈分量的辅助信号(15),并且使用估计的输入信号(14)来估计外部反馈路径(11)的外部反馈路径(11)的反馈分量 外部反馈路径(11)的传递函数(21)。
    • 3. 发明申请
    • METHOD FOR OPERATING A HEARING DEVICE
    • 操作听觉设备的方法
    • WO2008084116A9
    • 2008-08-21
    • PCT/EP2008053666
    • 2008-03-27
    • PHONAK AGBUHMANN JOACHIM MKORL SASCHAMOH YVONNEORBANZ PETER
    • BUHMANN JOACHIM MKORL SASCHAMOH YVONNEORBANZ PETER
    • H04R25/00
    • H04R25/43H04R25/505H04R25/70H04R2225/41
    • A method for operating a hearing device comprising an input transducer (1), an output transducer (3) and a signal processing unit (2) for processing an output signal of the input transducer (1) to obtain an input signal for the output transducer (3) by applying a transfer function to the output signal of the input transducer (1) is disclosed. The method comprises the steps of : extracting features (fv) of the output signal of the input transducer (1), classifying the extracted features (fv) by at least two classifying experts (El,.., Ek), weighting the outputs of the at least two classifying experts (El,..., Ek) by a weight vector (w) in order to obtain a classifier output (co), adjusting at least some parameters of the transfer function in accordance with the classifier output (co), monitoring a user feedback (uf) that is received by the hearing device, and updating the weight vector (w) and/or one of the at least two classifying experts (El,..., Ek) in accordance with the user feedback (uf).
    • 一种用于操作听力装置的方法,包括输入换能器(1),输出换能器(3)和用于处理输入换能器(1)的输出信号的信号处理单元(2),以获得输出换能器的输入信号 (3)通过对输入变换器(1)的输出信号施加传递函数。 该方法包括以下步骤:提取输入换能器(1)的输出信号的特征(fv),由至少两个分类专家(E1,...,Ek)对提取的特征(fv)进行分类,对 所述至少两个分类专家(El,...,Ek)通过权重向量(w)以获得分类器输出(co),根据分类器输出(co)调整传递函数的至少一些参数 ),监视由听力设备接收的用户反馈(uf),以及根据用户更新权重向量(w)和/或至少两个分类专家(E1,...,Ek)中的一个 反馈(uf)。
    • 4. 发明申请
    • METHOD FOR OPERATING A HEARING DEVICE
    • 操作听觉设备的方法
    • WO2008084116A3
    • 2009-03-12
    • PCT/EP2008053666
    • 2008-03-27
    • PHONAK AGBUHMANN JOACHIM MKORL SASCHAMOH YVONNEORBANZ PETER
    • BUHMANN JOACHIM MKORL SASCHAMOH YVONNEORBANZ PETER
    • H04R25/00
    • H04R25/43H04R25/505H04R25/70H04R2225/41
    • A method for operating a hearing device comprising an input transducer (1), an output transducer (3) and a signal processing unit (2) for processing an output signal of the input transducer (1) to obtain an input signal for the output transducer (3) by applying a transfer function to the output signal of the input transducer (1) is disclosed. The method comprises the steps of : extracting features (fv) of the output signal of the input transducer (1), classifying the extracted features (fv) by at least two classifying experts (El,.., Ek), weighting the outputs of the at least two classifying experts (El,..., Ek) by a weight vector (w) in order to obtain a classifier output (co), adjusting at least some parameters of the transfer function in accordance with the classifier output (co), monitoring a user feedback (uf) that is received by the hearing device, and updating the weight vector (w) and/or one of the at least two classifying experts (El,..., Ek) in accordance with the user feedback (uf).
    • 一种用于操作听力装置的方法,包括输入换能器(1),输出换能器(3)和用于处理输入换能器(1)的输出信号的信号处理单元(2),以获得输出换能器的输入信号 (3)通过对输入变换器(1)的输出信号施加传递函数。 该方法包括以下步骤:提取输入换能器(1)的输出信号的特征(fv),由至少两个分类专家(E1,...,Ek)对提取的特征(fv)进行分类,对 所述至少两个分类专家(El,...,Ek)通过权重向量(w)以获得分类器输出(co),根据分类器输出(co)调整传递函数的至少一些参数 ),监视由听力设备接收的用户反馈(uf),以及根据用户更新权重向量(w)和/或至少两个分类专家(E1,...,Ek)中的一个 反馈(uf)。
    • 5. 发明申请
    • METHOD FOR DETERMINING A MAXIMUM GAIN IN A HEARING DEVICE AS WELL AS A HEARING DEVICE
    • 用于确定听觉设备中作为听觉设备的最大增益的方法
    • WO2008065209A3
    • 2008-12-04
    • PCT/EP2008050701
    • 2008-01-22
    • PHONAK AGKORL SASCHAKUHN LUKAS
    • KORL SASCHAKUHN LUKAS
    • H04R25/00
    • H04R25/453
    • A method for determining a maximum gain is disclosed that is applicable in a forward signal path starting at a microphone (1) and ending at a receiver (11) of a hearing device, the maximum gain being a gain value at which just no feedback occurs. The method comprising the steps of estimating an estimated feedback transfer function (F') characterizing a feedback signal path (15) starting at a receiver (11) and ending at a microphone (1) of the hearing device, while the hearing device is inserted into an ear of a hearing device user, and adapting the estimated feedback transfer function (F') as a result of a changing feedback signal path (15) by applying an adaptive algorithm. The invention is characterized by determining the maximum gain from the estimated feedback transfer function (F'), in particular by coefficients of the estimated feedback transfer function.
    • 公开了一种用于确定最大增益的方法,其适用于从麦克风(1)开始并在听力设备的接收机(11)处结束的前向信号路径,最大增益是仅发生反馈的增益值 。 该方法包括以下步骤:在接收器(11)处开始表征反馈信号路径(15)的估计反馈传递函数(F'),并且在听觉设备被插入的同时在听力设备的麦克风(1)处结束 进入听力设备用户的耳朵,并且通过应用自适应算法,作为改变的反馈信号路径(15)的结果来适应所估计的反馈传递函数(F')。 本发明的特征在于从所估计的反馈传递函数(F')确定最大增益,特别是通过所估计的反馈传递函数的系数。