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    • 3. 发明申请
    • HEARING AID COMPRISING ADAPTIVE FEEDBACK SUPPRESSION SYSTEM
    • 助听器包含自适应反馈抑制系统
    • WO2005096670A1
    • 2005-10-13
    • PCT/EP2004/002135
    • 2004-03-03
    • WIDEX A/SKLINKBY, Kristian, TjalfeNORGAARD, Peter, MagnusCEDERBERG, Jorgen
    • KLINKBY, Kristian, TjalfeNORGAARD, Peter, MagnusCEDERBERG, Jorgen
    • H04R25/00
    • H04R25/453
    • 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.
    • 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。
    • 5. 发明申请
    • A HEARING AID ADAPTED FOR ISSUING A NOTIFICATION AND A METHOD FOR ISSUING A NOTIFICATION
    • 适用于发布通知的听觉助剂和发出通知的方法
    • WO2008151626A1
    • 2008-12-18
    • PCT/DK2007/050073
    • 2007-06-13
    • WIDEX A/SNORGAARD, Peter, Magnus
    • NORGAARD, Peter, Magnus
    • H04R25/00
    • H04R25/558H04R25/505H04R25/554
    • A hearing aid adapted for issuing, at at least one predetermined notification time, a notification to a hearing aid user wearing the hearing aid. The hearing aid comprises digital circuitry (16, 17) including a digital processor (16), means (18) for generating a first time base for the digital circuitry (16, 17) of the hearing aid, digital storage means (13) for storing data corresponding to at least one time limit at which a notification is to occur. The hearing aid also comprises digital storage means (12) for storing a compensation factor value indicating a relative difference between said first time base and a second external time base. Furthermore the hearing aid comprises means for determining, based on said data indicating the predetermined notification time, said first time base and said compensation factor value, when said predetermined notification time has been reached and issuing the notification.
    • 一种助听器,适于在至少一个预定的通知时间向向助听器的助听器用户发出通知。 该助听器包括数字电路(16,17),包括数字处理器(16),用于产生助听器的数字电路(16,17)的第一时基的装置(18),数字存储装置(13),用于 存储对应于发生通知的至少一个时间限制的数据。 助听器还包括数字存储装置(12),用于存储指示所述第一时基和第二外部时基之间的相对差的补偿因子值。 此外,助听器包括用于当达到所述预定通知时间并且发出通知时,基于指示预定通知时间的所述数据,所述第一时基和所述补偿因子值来确定的装置。