公开(公告)号：US20210067885A1

公开(公告)日：2021-03-04

申请号：US16950532

申请日：2020-11-17

Applicant: Oticon A/S

Inventor： Michael Syskind PEDERSEN ,  Svend Oscar PETERSEN ,  Meng GUO ,  Karsten Bo RASMUSSEN ,  Troels Holm PEDERSEN ,  Kenneth Rueskov MØLLER

IPC: H04R25/00

Abstract: A hearing device comprises an ITE-part adapted for being located at or in an ear canal of the user comprising a housing comprising a seal towards walls or the ear canal, the ITE part comprising at least two microphones located outside the seal and facing the environment, and at least one microphone located inside the seal and facing the ear drum. The hearing device may comprise a beamformer filter connected to said at least three microphones comprising a first beamformer for spatial filtering said sound in the environment based on input signals from said at least two microphones facing the environment, and a second beamformer for spatial filtering sound reflected from the ear drum based on said at least one electric input signal from said at least one microphone facing the ear drum and at least one of said input signals from said at least two microphones facing the environment.

公开(公告)号：US20190253813A1

公开(公告)日：2019-08-15

申请号：US16271557

申请日：2019-02-08

Applicant: Oticon A/S

Inventor： Michael Syskind PEDERSEN ,  Svend Oscar PETERSEN ,  Meng GUO ,  Karsten Bo RASMUSSEN ,  Troels Holm PEDERSEN ,  Kenneth Rueskov MØLLER

IPC: H04R25/00

CPC classification number: H04R25/453 ,  H04R25/407 ,  H04R25/554 ,  H04R25/606 ,  H04R2460/13

Abstract: A hearing device, e.g. a hearing aid, comprises a) a multitude of input transducers for providing respective electric input signals representing sound in an environment of the user; b) an output transducer for providing stimuli perceivable to the user as sound based on said electric input signals or a processed version thereof; c) an adaptive beamformer filtering unit connected to said input unit and to said output unit, and configured to provide a spatially filtered signal based on said multitude of electric input signals and adaptively updated beamformer weights; and d) a feedback estimation unit providing feedback estimates of current feedback paths from said output transducer to each of said input transducers. The hearing device is configured to provide that at least one of said adaptively updated beamformer weights of the adaptive beamformer filtering unit is/are updated in dependence of said feedback path estimates. The application further relates to a method of suppressing feedback.

公开(公告)号：US20180098160A1

公开(公告)日：2018-04-05

申请号：US15725067

申请日：2017-10-04

Applicant: Oticon A/S

Inventor： Jesper JENSEN ,  Meng GUO ,  Richard HEUSDENS ,  Richard HENDRIKS ,  Jamal AMINI

IPC: H04R25/00

CPC classification number: H04R25/552 ,  H04R25/353 ,  H04R25/405 ,  H04R25/407 ,  H04R25/505 ,  H04R25/554 ,  H04R2225/41 ,  H04R2430/03

Abstract: The application relates to a hearing device adapted for being located at or in a first ear of a user, or to be fully or partially implanted in the head at a first ear of a user, the hearing device comprising a first input transducer for converting a first input sound signal from a sound field around the user at a first location, the first location being a location of the first input transducer, to a first electric input signal, the sound field comprising a mixture of a target sound from a target sound source and possible acoustic noise; a transceiver unit configured to receive a first quantized electric input signal via a communication link, the first quantized electric input signal being representative of the sound field around the user at a second location, the first quantized electric input signal comprising quantization noise due to a specific quantization scheme; a beamformer filtering unit adapted to receive said first electric input signal and said quantized electric input signal and to determine beamformer filtering weights, which, when applied to said first electric input signal and said quantized electric input signal, provide a beamformed signal, and a control unit adapted to control the beamformer filtering unit, wherein the control unit is configured to control the beamformer filtering unit taking account of said quantization noise. The invention may e.g. be used for the hearing aids and other portable electronic devices with limited power capacity.

公开(公告)号：US20160183014A1

公开(公告)日：2016-06-23

申请号：US14978917

申请日：2015-12-22

Applicant: Oticon A/S

Inventor： Meng GUO ,  Michael Syskind PEDERSEN ,  Niels Søgård JENSEN ,  Jesper JENSEN ,  Pauli MINNAAR ,  Adis BJELOSEVIC ,  Ariane LAPLANTE-LÉVESQUE ,  Ole Fogh OLSEN ,  Bo WESTERGÅRD ,  Lars BRAMSLØW ,  Claus NIELSEN ,  Filip Marchman RØNNE

IPC: H04R25/00 ,  G10L25/78 ,  G06K9/00

CPC classification number: G06K9/00281 ,  A61B5/1176 ,  G06K9/00221 ,  G10L15/25 ,  G10L25/78 ,  H04R3/005 ,  H04R25/407 ,  H04R25/552 ,  H04R2201/40 ,  H04R2225/43 ,  H04R2430/20

Abstract: The present disclosure relates to hearing devices including an image capture device. Features of sound processing may be based on analysis of images from the image capture device.

Abstract translation: 本公开涉及包括图像捕获装置的听力装置。 声音处理的特征可以基于来自图像捕捉装置的图像的分析。

公开(公告)号：US20160080873A1

公开(公告)日：2016-03-17

申请号：US14855979

申请日：2015-09-16

Applicant: OTICON A/S

Inventor： Meng GUO ,  Jan Mark de HAAN ,  Jesper JENSEN

IPC: H04R25/00

CPC classification number: H04R25/405 ,  H04R3/005 ,  H04R5/033 ,  H04R25/407 ,  H04R25/505 ,  H04R2225/67 ,  H04R2430/25

Abstract: The application relates to a hearing device comprising a beamformer of the generalized sidelobe canceler (GSC) type. The application further relates to a method of operating a hearing device. The disclosure addresses a problem which occurs when using a GSC structure in a hearing device application. The problem arises due to a non-ideal target-cancelling beamformer. As a consequence, a target signal impinging from the look direction can—unintentionally—be attenuated by as much as 30 dB. To resolve this problem, it is proposed to monitor the difference between the output signals from the all-pass beamformer and the target-cancelling beamformer to control a time-varying regularization parameter in the GSC update. This has the advantage of providing a computationally simple solution to the non-ideality of the GSC beamformer. The invention may e.g. be used in hearing aids, headsets, ear phones, active ear protection systems, or combinations thereof.

Abstract translation: 本申请涉及一种包括广义旁瓣消除器（GSC）类型的波束形成器的听力装置。 本申请还涉及一种操作听力装置的方法。 本公开涉及在听力设备应用中使用GSC结构时发生的问题。 问题出现是由于非理想的目标消除波束形成器。 因此，从外观方向入射的目标信号可能无意中衰减多达30dB。 为了解决这个问题，提出了监控全通波束形成器和目标消除波束形成器的输出信号之间的差异，以控制GSC更新中的时变正则化参数。 这具有为GSC波束形成器的非理想性提供计算上简单的解决方案的优点。 本发明可以例如 用于助听器，耳机，耳机，主动耳朵保护系统或其组合。

公开(公告)号：US20240323614A1

公开(公告)日：2024-09-26

申请号：US18734261

申请日：2024-06-05

Applicant: Oticon A/S

Inventor： Sudershan Yalgalwadi SREEPADARAO ,  Anders MENG ,  Mojtaba FARMANI ,  Martin KURIGER ,  Mikkel GRØNBECH ,  Meng GUO

IPC: H04R25/00

CPC classification number: H04R25/43 ,  H04R25/507 ,  H04R25/554

Abstract: 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.

公开(公告)号：US20240064476A1

公开(公告)日：2024-02-22

申请号：US18499519

申请日：2023-11-01

Applicant: Oticon A/S

Inventor： Thomas BEHRENS ,  Michael Syskind PEDERSEN ,  Meng GUO

IPC: H04R25/00

CPC classification number: H04R25/407 ,  H04R25/453

Abstract: A hearing aid includes a forward path for processing sound from the user's environment. The forward path includes a) a first microphone providing a first electric input signal representing sound as received at the first microphone, the first microphone being located away from an ear canal of the user, b) an audio signal processor for processing the first electric input signal, or a signal or signals originating therefrom, and for providing a processed signal, c) an output transducer for providing stimuli perceivable as sound to the user in dependence of the processed signal, and d) a second microphone configured to provide a second electric input signal representing sound received at the second microphone, the second microphone being located at or in the user's ear canal, and e) a feature extractor for extracting acoustic characteristics of the user's ear from the second electric input signal, or a signal originating therefrom.

公开(公告)号：US20230074554A1

公开(公告)日：2023-03-09

申请号：US17903696

申请日：2022-09-06

Applicant: Oticon A/S

Inventor： Sudershan Yalgalwadi SREEPADARAO ,  Anders MENG ,  Meng GUO ,  Mojtaba FARMANI ,  Martin KURIGER ,  Mikkel GRØNBECH ,  Nels Hede ROHDE ,  Thomas JENSEN

IPC: H04R25/00

Abstract: A hearing aid configured to be worn by a user, the hearing aid comprising a user interface allowing the user to control functionality of the hearing aid, and a feedback sensor for repeatedly providing a feedback signal indicative of a current estimate of feedback from an output transducer to an input transducer of the hearing aid, wherein the user interface is based on changes to the current estimate of the feedback path, e.g. provided by the user. A method of operating a hearing aid is further disclosed. Thereby an alternative user interface for a hearing aid may be provided. The invention may e.g. be used in hearing aids or headsets, or a combination thereof.

公开(公告)号：US20220312129A1

公开(公告)日：2022-09-29

申请号：US17704828

申请日：2022-03-25

Applicant: Oticon A/S

Inventor： Meng GUO ,  Bernhard KUENZLE ,  Anders MENG ,  Martin KURIGER ,  Mojtaba FARMANI ,  Mikkel GRØNBECH ,  Sudershan Yalgalwadi SREEPADARAO ,  Kim Tilgaard PETERSEN

IPC: H04R25/00

Abstract: 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.

公开(公告)号：US20220264232A1

公开(公告)日：2022-08-18

申请号：US17674041

申请日：2022-02-17

Applicant: Oticon A/S

Inventor： Meng GUO ,  Anders MENG ,  Martin KURIGER ,  Mojtaba FARMANI ,  Mikkel GRØNBECH ,  Sudershan Y.S

IPC: H04R25/00

Abstract: A hearing aid comprises a forward path comprising an input transducer an electric input signals representing a sound comprising target signal components and background noise, a hearing aid processor for providing a processed signal in dependence of said at least one electric input signal and for providing a processed output signal in dependence thereof, and an output transducer for providing stimuli perceivable as sound to the user in dependence of said processed signal. The forward path provides a frequency dependent intended forward path transfer function. The hearing aid further comprises a feedback path estimator configured to provide a current frequency dependent estimate of a feedback path transfer function of a feedback path from the output transducer to the input transducer, and a current feedback path estimate in dependence of the current estimate of the feedback path transfer function and of the processed signal, and a combination unit in the forward path configured to subtract the current feedback path estimate from a signal of the forward path to provide a feedback corrected signal. The hearing aid may further comprise a noise estimator configured to provide a current frequency dependent noise estimate representing a background noise level in the at least one electric input signal, an open loop transfer function estimator configured to provide a frequency dependent estimate of a current open loop transfer function in dependence of the intended forward path transfer function and the current estimate of the feedback transfer function, and a confidence level estimator configured to provide a current frequency dependent estimate of a confidence level of the current estimate of the feedback transfer function in dependence of a current estimate of open loop gain and optionally the current noise estimate. The hearing aid may be configured to control processing in the hearing aid in a frequency band k in dependence of said current estimate of the open loop transfer function and/or the current estimate of the feedback path transfer function, if the current estimate of the confidence level fulfils a confidence criterion in said frequency band k. A method of operating a hearing aid is further disclosed. The invention may e.g. be used to assess a risk of acoustic feedback in a hearing aid.