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    Hearing aid system and a method of programming a hearing aid device
    1.
    发明授权
    Hearing aid system and a method of programming a hearing aid device 有权

    公开(公告)号：US09980053B2

    公开(公告)日：2018-05-22

    申请号：US15342917

    申请日：2016-11-03

    申请人： Oticon A/S ,  Bernafon AG

    发明人： Martin Kuriger ,  Christophe Lesimple ,  Neil Hockley ,  Claus Forup Corlin Jespersgaard ,  Thomas Ulrich Christiansen ,  Kamilla Angelo

    IPC分类号： H04R25/00

    CPC分类号： H04R25/353 ,  H04R25/70 ,  H04R2225/55

    摘要： A method of programming a configurable signal processing unit of a hearing aid device comprises Providing a frequency transposition algorithm in the hearing aid device where content from more than one upper-lying source frequency band is copied or moved into one and the same lower lying destination frequency band; Providing a number of frequency transposition configurations, each comprising a specific combination of source regions and a destination region; Providing a weight parameter that specifies the amount of gain applied to a lowered signal resulting from a given frequency transposition configuration; and Providing a prescription algorithm that selects an optimum frequency transposition configuration for an ear of a user taking an audiogram for the ear in question and an amplification capability of the hearing aid device in question into account. A purpose of the disclosure is to provide an improved audibility of high frequency sound for users with severe-to-profound hearing losses.

    Hearing device comprising a feedback detection unit
    3.
    发明授权
    Hearing device comprising a feedback detection unit 有权

    公开(公告)号：US10368175B2

    公开(公告)日：2019-07-30

    申请号：US15690688

    申请日：2017-08-30

    申请人： Oticon A/S

    发明人： Martin Kuriger ,  Bernhard Kuenzle ,  Meng Guo

    IPC分类号： H04M9/08 ,  H04R3/02 ,  H04R25/00

    摘要： A hearing device, e.g. a hearing aid, comprises a forward path for processing an electric signal representing sound including a) an input unit for receiving or providing an electric input signal representing sound, b) a signal processing unit, c) an output transducer for generating stimuli perceivable as sound to a user, d) a feedback detection unit configured to detect feedback or evaluate a risk of feedback via an acoustic or mechanical or electrical feedback path from said output transducer to said input unit and comprising d1) a magnitude and phase analysis unit for repeatedly determining magnitude, Mag, and phase, Phase, of said electric input signal and further parameters based thereon, and d2) a feedback conditions and detection unit configured to check criteria for magnitude and phase feedback condition, respectively, based on said values, and to provide a feedback detection signal indicative of feedback or a risk of feedback.

    Motion data based signal processing
    4.
    发明授权
    Motion data based signal processing 有权

    公开(公告)号：US12052546B2

    公开(公告)日：2024-07-30

    申请号：US17704355

    申请日：2022-03-25

    申请人： Oticon A/S

    发明人： Sudershan Yalgalwadi Sreepadarao ,  Anders Meng ,  Mojtaba Farmani ,  Martin Kuriger ,  Mikkel Grønbech ,  Meng Guo

    IPC分类号： H04R25/00

    CPC分类号： H04R25/43 ,  H04R25/507 ,  H04R25/554

    摘要： A hearing aid includes an input unit, an output unit, a signal processing unit connected to said input unit and output unit, where the input unit, the signal processing unit and the output unit are forming part of a forward path of the hearing aid, where the signal processing unit is configured to apply a forward gain to the at least one electric input signal or a signal originating therefrom. The hearing aid further includes a feedback control unit configured to reduce a risk of howl due to acoustic, electrical, and/or mechanical feedback of an external feedback path from the output unit to the input unit of said hearing aid, where the hearing aid is configured to receive motion data characterising movement and/or acceleration and/or orientation and/or position of the hearing aid to control processing.

    Feedback elimination in a hearing aid
    6.
    发明授权
    Feedback elimination in a hearing aid 有权

    公开(公告)号：US11825269B2

    公开(公告)日：2023-11-21

    申请号：US17704828

    申请日：2022-03-25

    申请人： Oticon A/S

    发明人： Meng Guo ,  Bernhard Kuenzle ,  Anders Meng ,  Martin Kuriger ,  Mojtaba Farmani ,  Mikkel Grønbech ,  Sudershan Yalgalwadi Sreepadarao ,  Kim Tilgaard Petersen

    IPC分类号： H04R25/00

    CPC分类号： H04R25/453 ,  H04R25/505

    摘要： A hearing aid includes an input unit, an output unit, a signal processing unit connected to the input unit and output unit, where the input unit, the signal processing unit and the output unit form part of a forward path of the hearing aid, where the signal processing unit is configured to apply a forward gain to the at least one electric input signal or a signal originating therefrom. The hearing aid further includes a feedback reduction unit configured to reduce risk of howl due to acoustic, electrical, and/or mechanical feedback of an external feedback path from the output unit to the input unit. The feedback reduction unit is configured to modulate the forward gain in time to provide that the forward gain exhibits an increased or unchanged forward gain in one or more first time periods and a reduced forward gain in one or more second time periods.

    HEARING AID COMPRISING A FEEDBACK CONTROL SYSTEM
    7.
    发明申请
    HEARING AID COMPRISING A FEEDBACK CONTROL SYSTEM 有权

    公开(公告)号：US20220210581A1

    公开(公告)日：2022-06-30

    申请号：US17560611

    申请日：2021-12-23

    申请人： Oticon A/S

    发明人： Bernhard Kuenzle ,  Martin Kuriger ,  Meng Guo

    IPC分类号： H04R25/00 ,  H04R3/02

    摘要： A hearing aid includes a feedback control system for handling external feedback from an output transducer to an input transducer. The feedback control system includes an open loop gain estimator for providing an instant open loop gain estimate; an adaptive filter configured to provide a current estimate of the feedback path transfer function; a feedback change estimator configured to provide an instant estimate of the feedback path transfer function in dependence of the forward path transfer function, the instant open loop gain estimate; and an adaptive filter controller for providing an update transfer function estimate for the adaptive filter in dependence of the instant estimate of the feedback path transfer function. The hearing aid is configured to use the update transfer function estimate in the adaptive filter to update the current estimate of the feedback path transfer function. A method of detecting a sudden change in a feedback/echo path is further disclosed.

    Hearing device comprising a directional system
    8.
    发明授权
    Hearing device comprising a directional system 有权

    公开(公告)号：US09800981B2

    公开(公告)日：2017-10-24

    申请号：US14845871

    申请日：2015-09-04

    申请人： Bernafon AG

    发明人： Martin Kuriger

    IPC分类号： H04R3/00 ,  H04R25/00 ,  H04S7/00

    CPC分类号： H04R25/407 ,  H04R3/005 ,  H04R25/405 ,  H04R25/43 ,  H04R25/552 ,  H04R2430/20 ,  H04R2430/23 ,  H04S7/307

    摘要： The application relates to a hearing device comprising an input unit for providing first and second electric input signals representing sound signals, a beamformer filter for making frequency-dependent directional filtering of the electric input signals, the output of said beamformer filter providing a resulting beamformed output signal. The application further relates to a method of providing a directional signal. The object of the present application is to create a directional signal. The problem is solved in that the beamformer filter comprises a directional unit for providing respective first and second beamformed signals from weighted combinations of the electric input signals, an equalization unit for equalizing a phase (and possibly an amplitude) of the beamformed signals and providing first and second equalized beamformed signals, and a beamformer output unit for providing the resulting beamformed output signal from the first and second equalized beamformed signals. This has the advantage to create a directional signal where the phase of the individual components is preserved, and therefore introducing no phase distortions. The invention may e.g. be used in hearing aids, headsets, ear phones, active ear protection systems, and combinations thereof.

    Hearing device comprising a loop gain limiter
    9.
    发明授权
    Hearing device comprising a loop gain limiter 有权

    公开(公告)号：US11184714B2

    公开(公告)日：2021-11-23

    申请号：US16801832

    申请日：2020-02-26

    申请人： Oticon A/S

    发明人： Meng Guo ,  Bernhard Kuenzle ,  Martin Kuriger

    IPC分类号： H04R25/00 ,  H03G3/30

    摘要： A hearing device comprises an input transducer providing an input gain GI, a signal processor comprising a compressor for determining a frequency and level dependent desired compressor gain GP to compensate for a hearing impairment of the user, and to provide a resulting compressor gain G′P, and an output transducer for providing output stimuli perceivable as sound for the user based on a processed signal, the output transducer providing an output gain, GO. A resulting forward path gain G′ is defined in a logarithmic representation as GI+G′P+GO. The hearing device further comprises a loop gain estimator for continuously estimating a current loop gain ΔL(n), configured to provide a loop gain estimate within a predefined number of feedback loop delays after a feedback buildup has started, and a loop gain controller for dynamically controlling said resulting forward path gain G′ in dependence of said estimate of said current loop gain ΔL(n). A resulting loop gain, LG′, is determined as a sum of the resulting forward path gain G′ and a feedback gain H when given in a logarithmic representation. The loop gain controller is configured to provide that the resulting loop gain is limited to stay below a predefined value.