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    HEARING DEVICE
    3.
    发明申请
    HEARING DEVICE 审中-公开

    公开(公告)号：US20180070185A1

    公开(公告)日：2018-03-08

    申请号：US15808604

    申请日：2017-11-09

    Applicant: OTICON A/S

    Inventor： Michael Syskind PEDERSEN ,  Thomas KAULBERG ,  Anders THULE ,  Steen Michael MUNK ,  Karsten Bo RASMUSSEN

    IPC: H04R25/00

    CPC classification number: H04R25/505 ,  H04R25/353 ,  H04R25/405 ,  H04R25/407 ,  H04R25/453 ,  H04R2225/39 ,  H04R2430/01

    Abstract: A hearing device comprising a first and a second input sound transducers, a processing unit, and an output sound transducer. The first transducer is configured to be arranged in an ear canal or in the ear of the user, to receive acoustical sound signals from the environment and to generate first electrical acoustic signals from the received acoustical sound signals. The second transducer is configured to be arranged behind a pinna or on, behind or at the ear of the user, to receive acoustical sound signals from the environment and to generate second electrical acoustic signals from the received acoustical sound signals. The processing unit is configured to process the first and second electrical acoustic signals and apply a direction dependent gain. The output sound transducer is configured generate acoustical output sound signals in accordance with the applied direction dependent gain.

    HEARING AID CONFIGURED TO PERFORM A RECD MEASUREMENT
    6.
    发明公开
    HEARING AID CONFIGURED TO PERFORM A RECD MEASUREMENT 审中-公开

    公开(公告)号：US20230199411A1

    公开(公告)日：2023-06-22

    申请号：US18083207

    申请日：2022-12-16

    Applicant: Oticon A/S

    Inventor： Svend Oscar PETERSEN ,  Karsten Bo RASMUSSEN ,  Steen Michael MUNK

    IPC: H04R25/00

    CPC classification number: H04R25/30 ,  H04R25/505 ,  H04R2225/021 ,  H04R2225/025

    Abstract: A method of estimating a real-ear-to-coupler-difference (RECD) in a hearing is provided. The hearing aid comprises an input transducer; an output transducer; and an ITE-part configured to define a residual volume when mounted in an ear canal of a user. The method comprises providing an earpiece configured to fit tightly to walls of an ear canal of the user and to provide said residual volume; that the earpiece comprises at least one ventilation channel or opening; a sound outlet allowing sound from said output transducer to be played into said residual volume; characteristics of the at least one ventilation channel or opening; a frequency dependent feedback path estimate from said output transducer to said input transducer through said ventilation channel or opening; and estimating a low-frequency and high frequency RECD values in dependence said feedback path estimate; and determining estimated frequency dependent RECD values in dependence of said estimated low-frequency RECD value, and said estimated high-frequency RECD value.

    HEARING AID COMPRISING A DIRECTIONAL MICROPHONE SYSTEM
    7.
    发明申请
    HEARING AID COMPRISING A DIRECTIONAL MICROPHONE SYSTEM 有权

    公开(公告)号：US20210092530A1

    公开(公告)日：2021-03-25

    申请号：US17029613

    申请日：2020-09-23

    Applicant: Oticon A/S

    Inventor： Anders Højsgaard THOMSEN ,  Steen Michael MUNK ,  Anders MENG

    IPC: H04R25/00

    Abstract: A hearing aid comprises a forward path comprising a) at least two input transducers, each for picking up sound from the environment of the hearing aid and providing respective at least two electric input signals; b) a beamformer filter for filtering said at least two electric input signals or signals originating therefrom and providing a spatially filtered signal; c) a signal processor for processing one or more of said electric input signals or one or more signals originating therefrom, and providing one or more processed signals based thereon; and d) an output transducer for generating stimuli perceivable by the user as sound based on said one or more processed signals. The hearing aid further comprises e) a feedback estimation system for estimating a current feedback from the output transducer to each of the at least two input transducers and providing respective feedback measures indicative thereof; and f) a controller configured to receive said feedback measures from said feedback estimation system and to switch between two modes of operation of the hearing aid, a one-input transducer (e.g. omni-directional) mode of operation, and a multi-input transducer (directional) mode of operation, in dependence of the feedback measures. to. The application further relates to a method of operating a hearing aid. Thereby the gain provided by the hearing aid to the user (without a significant risk of howl) can be maximized.

    METHOD OF CONTROLLING AN UPDATE ALGORITHM OF AN ADAPTIVE FEEDBACK ESTIMATION SYSTEM AND A DECORRELATION UNIT
    8.
    发明申请
    METHOD OF CONTROLLING AN UPDATE ALGORITHM OF AN ADAPTIVE FEEDBACK ESTIMATION SYSTEM AND A DECORRELATION UNIT 有权
    控制自适应反馈估计系统和装饰单元的更新算法的方法

    公开(公告)号：US20140146977A1

    公开(公告)日：2014-05-29

    申请号：US14090847

    申请日：2013-11-26

    Applicant: OTICON A/S

    Inventor： Steen Michael MUNK ,  Anders MENG

    IPC: G10K11/175

    CPC classification number: G10K11/175 ,  H04R3/02 ,  H04R25/453

    Abstract: An audio processing device comprises a feedback estimation system for estimating feedback from an output transducer to an input transducer, the feedback estimation system comprising an adaptive filter comprising a variable filter part for filtering an input signal according to variable filter coefficients and an algorithm part comprising an adaptive algorithm for dynamically updating filter coefficients, a control unit for controlling the de-correlation unit and the adaptive algorithm, and a correlation detection unit for determining a) the auto-correlation of a signal of the forward path and providing an AC-value and/or b) the cross-correlation between two different signals of the forward path and providing an XC-value.

    Abstract translation: 音频处理装置包括用于估计从输出换能器到输入换能器的反馈的反馈估计系统，所述反馈估计系统包括自适应滤波器，该自适应滤波器包括用于根据可变滤波器系数对输入信号进行滤波的可变滤波器部分，以及包括 用于动态更新滤波器系数的自适应算法，用于控制去相关单元和自适应算法的控制单元，以及相关检测单元，用于确定a）正向路径的信号的自相关性并提供AC值，以及 /或b）正向路径的两个不同信号之间的互相关并提供XC值。

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