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1. 发明申请

WO2007128825A1 HEARING SYSTEM AND METHOD IMPLEMENTING BINAURAL NOISE REDUCTION PRESERVING INTERAURAL TRANSFER FUNCTIONS 审中-公开
标题翻译：听觉系统和方法实现保护间隔传递函数的减少噪声
公开(公告)号：WO2007128825A1
公开(公告)日：2007-11-15
申请号：PCT/EP2007/054468
申请日：2007-05-09
申请人： PHONAK AG , DOCLO, Simon , KLASEN, J Thomas , MOONEN, Marc , VAN DEN BOGAERT, Tim , WOUTERS, Jan , DERLETH, Ralph Peter , KORL, Sascha
发明人： DOCLO, Simon , KLASEN, J Thomas , MOONEN, Marc , VAN DEN BOGAERT, Tim , WOUTERS, Jan , DERLETH, Ralph Peter , KORL, Sascha
IPC分类号： H04R25/00
CPC分类号： H04R25/552 , H04R25/407 , H04R25/453 , H04R25/554 , H04R25/558
摘要： The binaural hearing system (1) comprises -ITF means (3a; 3b) for providing at least one interaural transfer function (30a;30b); - noise reduction means (5a; 5b) for performing noise reduction in dependence of said at least one interaural transfer function. The method of operating a binaural hearing system (1) comprises the steps of -providing at least one interaural transfer function (30a; 30b); -performing noise reduction in dependence of said at least one interaural transfer function. Preferably, said noise reduction means (5a; 5b) comprises two binaural Wiener filters (5a, 5b) each having a cost function comprising at least one term describing a desired interaural transfer function, wherein said at least one interaural transfer function provided by said ITF means (3a, 3b) is assigned to said at least one term. Preferably, said cost function comprises a speech distortion term, a residual noise term and two ITF terms for preserving the interaural transfer functions of speech and noise components. This allows to preserve binaural cues while reducing noise.
摘要翻译：双耳听力系统（1）包括用于提供至少一个耳间传递功能（30a; 30b）的-ITF装置（3a; 3b） - 噪声降低装置（5a; 5b），用于根据所述至少一个耳间传递函数执行降噪。操作双耳听力系统（1）的方法包括以下步骤：提供至少一个耳间传递函数（30a; 30b）; - 根据所述至少一个耳间传递函数执行降噪。优选地，所述噪声降低装置（5a; 5b）包括两个双耳维纳滤波器（5a，5b），每个具有成本函数的成本函数包括描述期望的耳间传递函数的至少一个项，其中由所述ITF提供的所述至少一个耳间传递函数将所述至少一个术语指定为（3a，3b）。优选地，所述成本函数包括语音失真项，残留噪声项和用于保持语音和噪声分量的耳间传递函数的两个ITF项。这允许保留双耳线索，同时减少噪音。

2. 发明申请

WO2005006808A1 METHOD AND DEVICE FOR NOISE REDUCTION 审中-公开
标题翻译：减少噪声的方法和装置
公开(公告)号：WO2005006808A1
公开(公告)日：2005-01-20
申请号：PCT/BE2004/000103
申请日：2004-07-12
申请人： COCHLEAR LIMITED , DOCLO, Simon , SPRIET, Ann , MOONEN, Marc , WOUTERS, Jan
发明人： DOCLO, Simon , SPRIET, Ann , MOONEN, Marc , WOUTERS, Jan
IPC分类号： H04R3/00
CPC分类号： G10L21/0208 , G10L2021/02165 , H04R3/005 , H04R25/407 , H04R2430/25
摘要： The present invention is related to a method to reduce noise in a noisy speech signal, comprising the steps of - applying at least two versions of the noisy speech signal to a first filter. The first filter outputs a speech reference signal and at least one noise reference signal, - applying a filtering operation to each of the at least one noise reference signals, and - subtracting from the speech reference signal each of the filtered noise reference signals. The filtering operation is performed with filters having filter coefficients determined by taking into account speech leakage contributions in the at least one noise reference signal.
摘要翻译：本发明涉及一种降低噪声语音信号中的噪声的方法，包括以下步骤：将噪声语音信号的至少两个版本应用于第一滤波器。第一滤波器输出语音参考信号和至少一个噪声参考信号， - 对至少一个噪声参考信号中的每一个应用滤波操作，以及 - 从语音参考信号中减去滤波后的噪声参考信号。通过考虑到至少一个噪声参考信号中的语音泄漏贡献来确定滤波器系数的滤波器来执行滤波操作。

3. 发明申请

WO2010150002A1 COCHLEAR IMPLANT APPARATUS 审中-公开
公开(公告)号：WO2010150002A1
公开(公告)日：2010-12-29
申请号：PCT/GB2010/051020
申请日：2010-06-21
申请人： MEDICAL RESEARCH COUNCIL , KATHOLIEKE UNIVERSITEIT LEUVEN , CARLYON, Robert , MACHEREY, Oliver , WOUTERS, Jan , VAN WIERINGEN, Astrid
发明人： CARLYON, Robert , MACHEREY, Oliver , WOUTERS, Jan , VAN WIERINGEN, Astrid
IPC分类号： A61N1/36 , A61N1/05
CPC分类号： A61N1/36038 , A61N1/0541
摘要： The invention relates to cochlear implants and to improved methods of operating such implants. We describe cochlear implant apparatus comprising an audio signal processing unit with a wired or wireless coupling to an implantable cochlear stimulation device, wherein said audio signal processing unit has an audio input to receive an audio signal representing a sound, wherein said implantable cochlear stimulation device includes an electrical pulse generator coupled to an electrode array for intracochlear stimulation, wherein the apparatus is configured to apply stimulation to said electrode array to represent said sound, wherein said stimulation comprises application of an electrical pulse across two intracochlear electrodes of said electrode array, and wherein said electrical pulse has a pulse waveshape which is asymmetric under an operation comprising inverting the waveshape about a zero level and then time reversing the waveshape.
摘要翻译：本发明涉及耳蜗植入物和操作这种植入物的改进方法。我们描述了包括具有有线或无线耦合到可植入耳蜗刺激装置的音频信号处理单元的耳蜗植入装置，其中所述音频信号处理单元具有用于接收表示声音的音频信号的音频输入，其中所述可植入耳蜗刺激装置包括耦合到电极阵列的电脉冲发生器，用于耳蜗内刺激，其中所述装置被配置为对所述电极阵列施加刺激以表示所述声音，其中所述刺激包括跨所述电极阵列的两个耳内电极施加电脉冲，并且其中所述电脉冲具有脉冲波形，其在包括将波形反转为零电平并随后反转波形的操作的操作下是不对称的。

4. 发明申请

WO2010115227A1 LOCALISATION IN A BILATERAL HEARING DEVICE SYSTEM 审中-公开
标题翻译：双向听力装置系统中的局部化
公开(公告)号：WO2010115227A1
公开(公告)日：2010-10-14
申请号：PCT/AU2009/000437
申请日：2009-04-07
申请人： COCHLEAR LIMITED , FRANCART, Tom , WOUTERS, Jan , VAN DIJK, Bas
发明人： FRANCART, Tom , WOUTERS, Jan , VAN DIJK, Bas
IPC分类号： H04R25/00 , G10K15/12 , H04R29/00
CPC分类号： H04R25/552 , A61N1/36036 , G01S3/802 , H04R25/353 , H04R25/407 , H04S2420/01
摘要： Disclosed is a method and system for allowing a recipient of a hearing aid device, and in one aspect, a bilateral hearing aid system, to locate the source of a sound signal about the recipient. The method uses localisation cues in the sound signal and modifies these to provide useable localisation cues to generate a stimulating signal for application to the recipient. In one example, a detected localisation cue such as an interaural level difference (ILD) is transposed to a lower frequency.
摘要翻译：公开了一种用于允许助听器装置的接收者的方法和系统，并且在一个方面，允许双边助听器系统定位关于接收者的声音信号的源。该方法使用声音信号中的定位线索，并修改它们以提供可用的本地化提示，以产生刺激信号以应用于接收者。在一个示例中，检测到的定位提示如颅内水平差（ILD）被转置到更低的频率。

5. 发明公开

EP2016799A1 HEARING SYSTEM AND METHOD IMPLEMENTING BINAURAL NOISE REDUCTION PRESERVING INTERAURAL TRANSFER FUNCTIONS 审中-公开
标题翻译：听力和方法，维护两耳间的传递函数实现双声道降噪
公开(公告)号：EP2016799A1
公开(公告)日：2009-01-21
申请号：EP07728920.5
申请日：2007-05-09
申请人： Phonak AG
发明人： DOCLO, Simon , KLASEN, J. Thomas , MOONEN, Marc , VAN DEN BOGAERT, Tim , WOUTERS, Jan , DERLETH, Ralph Peter , KORL, Sascha
IPC分类号： H04R25/00
CPC分类号： H04R25/552 , H04R25/407 , H04R25/453 , H04R25/554 , H04R25/558
摘要： The binaural hearing system (1) comprises -ITF means (3a; 3b) for providing at least one interaural transfer function (30a;30b); - noise reduction means (5a; 5b) for performing noise reduction in dependence of said at least one interaural transfer function. The method of operating a binaural hearing system (1) comprises the steps of -providing at least one interaural transfer function (30a; 30b); -performing noise reduction in dependence of said at least one interaural transfer function. Preferably, said noise reduction means (5a; 5b) comprises two binaural Wiener filters (5a, 5b) each having a cost function comprising at least one term describing a desired interaural transfer function, wherein said at least one interaural transfer function provided by said ITF means (3a, 3b) is assigned to said at least one term. Preferably, said cost function comprises a speech distortion term, a residual noise term and two ITF terms for preserving the interaural transfer functions of speech and noise components. This allows to preserve binaural cues while reducing noise.

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