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1. 发明申请

WO2007042025A1 HEARING AID AND A METHOD OF PROCESSING INPUT SIGNALS IN A HEARING AID 审中-公开
标题翻译：听力助听器和一种在听力辅助中处理输入信号的方法
公开(公告)号：WO2007042025A1
公开(公告)日：2007-04-19
申请号：PCT/DK2005/000654
申请日：2005-10-11
申请人： WIDEX A/S , KLINKBY, Kristian, Tjalfe , CEDERBERG, Jorgen , FOEH, Helge, Pontoppidan , NORGAARD, Peter, Magnus , THIEDE, Thilo, Volker
发明人： KLINKBY, Kristian, Tjalfe , CEDERBERG, Jorgen , FOEH, Helge, Pontoppidan , NORGAARD, Peter, Magnus , THIEDE, Thilo, Volker
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 (Dir1, Dir2) for combining the respective audio signals to form a spatial signal, a beamformer (35) for controlling the directional processing means to provide adaptation of the spatial signal, and means (LFB1, LFB2) for boosting low frequencies of the spatial signal. A feedback estimator generates a feedback compensation signal (7a, 7b), 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（Dir1，Dir2），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（35），以及装置，LFB2），用于升高空间信号的低频。反馈估计器产生与升压的空间信号组合的反馈补偿信号（7a，7b）。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。

2. 发明申请

WO2006063624A1 HEARING AID WITH FEEDBACK MODEL GAIN ESTIMATION 审中-公开
标题翻译：用反馈模型增益估计的助听器
公开(公告)号：WO2006063624A1
公开(公告)日：2006-06-22
申请号：PCT/EP2004/053547
申请日：2004-12-16
申请人： WIDEX A/S , KLINKBY, Kristian, Tjalfe , FOEH, Helge, Pontoppidan , THIEDE, Thilo, Volker
发明人： KLINKBY, Kristian, Tjalfe , FOEH, Helge, Pontoppidan , THIEDE, Thilo, Volker
IPC分类号： H04R25/00
CPC分类号： H04R25/453
摘要： A hearing aid 100 comprises an input transducer 10 for transforming an acoustic input signal into an electrical input signal 15, a processor 20 for generating an electrical output signal by amplifying the electrical input signal with a processor gain, an output transducer 30 for transforming the electrical output signal into an acoustic output signal, an adaptive feedback suppression filter 40 for generating a feedback cancellation signal by using an error signal generated from the difference between the feedback cancellation signal and the electrical input signal, and a model gain estimator 60 generating an upper processor gain limit by determining the gain in the adaptive feedback suppression filter.
摘要翻译：助听器100包括用于将声输入信号转换成电输入信号15的输入变换器10，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20;输出变换器30 用于将电输出信号变换为声输出信号的自适应反馈抑制滤波器40，用于通过使用从反馈消除信号和电输入信号之间的差产生的误差信号产生反馈消除信号，以及模型增益估计器60 通过确定自适应反馈抑制滤波器中的增益来产生上位处理器增益限制。

3. 发明申请

WO2005096670A1 HEARING AID COMPRISING ADAPTIVE FEEDBACK SUPPRESSION SYSTEM 审中-公开
标题翻译：助听器包含自适应反馈抑制系统
公开(公告)号：WO2005096670A1
公开(公告)日：2005-10-13
申请号：PCT/EP2004/002135
申请日：2004-03-03
申请人： WIDEX A/S , KLINKBY, Kristian, Tjalfe , NORGAARD, Peter, Magnus , CEDERBERG, Jorgen
发明人： KLINKBY, Kristian, Tjalfe , NORGAARD, Peter, Magnus , CEDERBERG, Jorgen
IPC分类号： H04R25/00
CPC分类号： H04R25/453
摘要： A hearing aid comprises an input transducer (2) for transforming an acoustic input into an electrical input signal, a subtraction node for subtracting a feedback cancellation signal from the electrical input signal thereby generating a processor input signal, a signal processor (3) for deriving a processor output signal from the processor input signal, an output transducer (4) for deriving an acoustic output from the processor output signal, a pair of equalization filters (7a, 7b) comprising a frequency selection unit (10i, 10j, ..., 10n) for respectively selecting from the processor input and output signals a plurality of frequency band signals, a frequency equalization unit (14i, 14j, ..., 14n) 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 while at the same time ignoring frequency ranges not relevant for the feedback cancellation process.
摘要翻译：助听器包括用于将声输入变换为电输入信号的输入换能器（2），用于从电输入信号减去反馈消除信号从而产生处理器输入信号的减法节点，用于导出信号处理器来自处理器输入信号的处理器输出信号，用于从处理器输出信号导出声输出的输出变换器（4），包括频率选择单元（10i，10j，...）的一对均衡滤波器（7a，7b），10n），用于从处理器分别选择输入和输出信号多个频带信号，用于所选频带信号的频率均衡的频率均衡单元（14i，14j，...，14n）和自适应反馈估计滤波器（5,6），用于从均衡的频带信号中自适应地导出反馈消除信号。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，特别是反馈消除的更快适应，同时忽略了与反馈消除过程无关的频率范围。

4. 发明申请

WO2005020632A1 HEARING AID WITH ACOUSTIC FEEDBACK SUPPRESSION 审中-公开
标题翻译：用声音反馈抑制听力助听
公开(公告)号：WO2005020632A1
公开(公告)日：2005-03-03
申请号：PCT/EP2003/009301
申请日：2003-08-21
申请人： WIDEX A/S , THIEDE, Thilo, Volker , KLINKBY, Kristian, Tjalfe
发明人： THIEDE, Thilo, Volker , KLINKBY, Kristian, Tjalfe
IPC分类号： H04R25/00
CPC分类号： H04R25/453
摘要： A hearing aid having an input transducer (2), a signal processor (3), an output transducer (4) and an adaptivefilter (5) for generating a feedback cancellation signal (101) further comprises a norm estimator (10) generatinga first norm signal (109) indicative of a norm of the electrical input signal and a second norm signal (110)indicative of a norm of a feedback-cancelled electrical input signal, a comparator for comparing the first andsecond norm signals and generating a difference value Nfbc - Nx and a decision unit disabling application ofthe feedback cancellation signal to the signal path of the hearing aid if the difference value is above a certainthreshold value cth thus avoiding the feedback cancellation mechanism actually increasing acoustic feedbackof the hearing aid. The invention also provides a method for reducing acoustic feedback of a hearing aid, acomputer program, and an electronic circuit for a hearing aid.
摘要翻译：具有输入换能器（2），信号处理器（3），输出换能器（4）和用于产生反馈消除信号（101）的自适应滤波器（5））的助听器还包括产生第一范数的范数估计器指示电输入信号的范数的信号（109）和指示反馈取消的电输入信号的范数的第二范数信号（110）;比较器，用于比较第一和第二范数信号并产生差值Nfbc- Nx和决定单元，如果差值在某个阈值c以上，则禁止将反馈消除信号应用于助听器的信号路径，从而避免反馈消除机制实际上增加助听器的声反馈。本发明还提供一种减少助听器，计算机程序和用于助听器的电子电路的声反馈的方法。

5. 发明申请

WO2005029914A1 A METHOD FOR CONTROLLING THE DIRECTIONALITY OF THE SOUND RECEIVING CHARACTERISTIC OF A HEARING AID AND A SIGNAL PROCESSING APPARATUS FOR A HEARING AID WITH A CONTROLLABLE DIRECTIONAL CHARACTERISTIC 审中-公开
标题翻译：用于控制听觉助听器的声音接收特性的方向性和用于具有可控方向特征的听觉辅助信号处理装置的方法
公开(公告)号：WO2005029914A1
公开(公告)日：2005-03-31
申请号：PCT/EP2003/010485
申请日：2003-09-19
申请人： WIDEX A/S , JENSEN, Lars, Baekgaard , KLINKBY, Kristian, Tjalfe
发明人： JENSEN, Lars, Baekgaard , KLINKBY, Kristian, Tjalfe
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 providedwhich comprises a directional controller (10) receiving first and second microphone signals (20, 30) andoutput 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 outputsignal by adjusting the directional characteristic only if the signal analyzer has detected undesired signals.
摘要翻译：提供一种用于具有可控方向特性的助听器的信号处理装置（100），其包括方向控制器（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否是不期望的信号，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。

6. 发明申请

WO2007000161A1 HEARING AID WITH ENHANCED HIGH FREQUENCY REPRODUCTION AND METHOD FOR PROCESSING AN AUDIO SIGNAL 审中-公开
标题翻译：具有增强高频再现的助听器和处理音频信号的方法
公开(公告)号：WO2007000161A1
公开(公告)日：2007-01-04
申请号：PCT/DK2005/000433
申请日：2005-06-27
申请人： WIDEX A/S , ANDERSEN, Henning, Haugaard , KLINKBY, Kristian, Tjalfe
发明人： ANDERSEN, Henning, Haugaard , KLINKBY, Kristian, Tjalfe
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 transporting of the signal.
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传输的乘法器（4）。

7. 发明授权

EP1665882B1 HEARING AID WITH ACOUSTIC FEEDBACK SUPPRESSION 有权
标题翻译：助听器应用抑制声反馈
公开(公告)号：EP1665882B1
公开(公告)日：2008-06-04
申请号：EP03818263.0
申请日：2003-08-21
申请人： Widex A/S
发明人： THIEDE, Thilo, Volker , KLINKBY, Kristian, Tjalfe
IPC分类号： H04R25/00
CPC分类号： H04R25/453
摘要： A hearing aid having an input transducer (2), a signal processor (3), an output transducer (4) and an adaptivefilter (5) for generating a feedback cancellation signal (101) further comprises a norm estimator (10) generatinga first norm signal (109) indicative of a norm of the electrical input signal and a second norm signal (110)indicative of a norm of a feedback-cancelled electrical input signal, a comparator for comparing the first andsecond norm signals and generating a difference value Nfbc - Nx and a decision unit disabling application ofthe feedback cancellation signal to the signal path of the hearing aid if the difference value is above a certainthreshold value cth thus avoiding the feedback cancellation mechanism actually increasing acoustic feedbackof the hearing aid. The invention also provides a method for reducing acoustic feedback of a hearing aid, acomputer program, and an electronic circuit for a hearing aid.

8. 发明公开

EP1665881A1 A METHOD FOR CONTROLLING THE DIRECTIONALITY OF THE SOUND RECEIVING CHARACTERISTIC OF A HEARING AID AND A SIGNAL PROCESSING APPARATUS FOR A HEARING AID WITH A CONTROLLABLE DIRECTIONAL CHARACTERISTIC 有权
标题翻译：一种用于控制助听器和信号处理装置的拾音模式与应税拾音模式助听器
公开(公告)号：EP1665881A1
公开(公告)日：2006-06-07
申请号：EP03769294.4
申请日：2003-09-19
申请人： Widex A/S
发明人： JENSEN, Lars, Baekgaard , KLINKBY, Kristian, Tjalfe
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 providedwhich comprises a directional controller (10) receiving first and second microphone signals (20, 30) andoutput 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 outputsignal by adjusting the directional characteristic only if the signal analyzer has detected undesired signals.

9. 发明授权

EP1825712B1 HEARING AID WITH FEEDBACK MODEL GAIN ESTIMATION 有权转让
标题翻译：与模型化的反馈增益估计助听器
公开(公告)号：EP1825712B1
公开(公告)日：2010-03-03
申请号：EP04804893.8
申请日：2004-12-16
申请人： Widex A/S
发明人： KLINKBY, Kristian, Tjalfe , FöH, Helge, Pontoppidan , THIEDE, Thilo, Volker
IPC分类号： H04R25/00
CPC分类号： H04R25/453
摘要： A hearing aid 100 comprises an input transducer 10 for transforming an acoustic input signal into an electrical input signal 15, a processor 20 for generating an electrical output signal by amplifying the electrical input signal with a processor gain, an output transducer 30 for transforming the electrical output signal into an acoustic output signal, an adaptive feedback suppression filter 40 for generating a feedback cancellation signal by using an error signal generated from the difference between the feedback cancellation signal and the electrical input signal, and a model gain estimator 60 generating an upper processor gain limit by determining the gain in the adaptive feedback suppression filter.

10. 发明公开

EP1665882A1 HEARING AID WITH ACOUSTIC FEEDBACK SUPPRESSION 有权
标题翻译：助听器应用抑制声反馈
公开(公告)号：EP1665882A1
公开(公告)日：2006-06-07
申请号：EP03818263.0
申请日：2003-08-21
申请人： Widex A/S
发明人： THIEDE, Thilo, Volker , KLINKBY, Kristian, Tjalfe
IPC分类号： H04R25/00
CPC分类号： H04R25/453
摘要： A hearing aid having an input transducer (2), a signal processor (3), an output transducer (4) and an adaptivefilter (5) for generating a feedback cancellation signal (101) further comprises a norm estimator (10) generatinga first norm signal (109) indicative of a norm of the electrical input signal and a second norm signal (110)indicative of a norm of a feedback-cancelled electrical input signal, a comparator for comparing the first andsecond norm signals and generating a difference value Nfbc - Nx and a decision unit disabling application ofthe feedback cancellation signal to the signal path of the hearing aid if the difference value is above a certainthreshold value cth thus avoiding the feedback cancellation mechanism actually increasing acoustic feedbackof the hearing aid. The invention also provides a method for reducing acoustic feedback of a hearing aid, acomputer program, and an electronic circuit for a hearing aid.

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