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公开(公告)号：US10511917B2
公开(公告)日：2019-12-17
申请号：US16289401
申请日：2019-02-28
Applicant: Oticon A/S
Inventor： Anders Højsgaard Thomsen , Jan Petersen , Jan Mark De Haan
Abstract: An adaptive level estimator for providing a level estimate of an electric input signal representing sound is provided. The adaptive level estimator comprises a first level estimator that provides a first level estimate of the electric input signal in a first number K1 of frequency bands; a second level estimator that provides attack/release time constants associated with a second level estimate of the electric input signal in a second number K2 of frequency bands, wherein K2 is smaller than K1; and a level control unit that provides a resulting level estimate based on said first level estimates and said attack/release time constants associated with said second level estimates. The level estimator may be used in devices or applications that benefit from a dynamic adaptation of an input signal level to a listener's dynamic range of sound level perception, or to any other specific dynamic range deviating from that of the environment sound.
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公开(公告)号：US10412508B2
公开(公告)日：2019-09-10
申请号：US16038946
申请日：2018-07-18
Applicant: Oticon A/S
Inventor： Jan Mark De Haan
Abstract: The application relates to a filter bank for an audio processing device, e.g. a hearing aid. The filter bank comprises an analysis filter bank comprising a plurality of M first filters hm(n), where m=0, 1, . . . , M−1 is a frequency band index, n being a time index, the first filters hm(n) having a first filter length of Lhm; a synthesis filter bank comprising a plurality of M second filters gm(n), m=0, 1, . . . , M−1, the second filters gm(n) having second filter lengths of Lgm; the plurality of first and second filters being arranged in pairs, each pair forming a frequency channel. the first filters hm(n) exhibiting a first filter delay τh, the second filters gm(n) exhibiting a second filter delay τg, each of the first filter lengths Lhm and the second filter lengths Lgm is uneven, and wherein the first filters are subject to the constraint that the sum of the first filters hm(n) of the analysis filter bank is a delta function δ(n−τh).
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公开(公告)号：US11671773B2
公开(公告)日：2023-06-06
申请号：US17693694
申请日：2022-03-14
Applicant: Oticon A/S
Inventor： Michael Syskind Pedersen , Jesper Jensen , Jan Mark De Haan
CPC classification number: H04R25/554 , H04R25/30 , H04R25/407 , H04R25/43 , H04R1/1083 , H04R25/305 , H04R25/552 , H04R2225/39 , H04R2225/41 , H04R2225/55 , H04R2499/11
Abstract: The present invention regards a hearing aid device at least one environment sound input, a wireless sound input, an output transducer, electric circuitry, a transmitter unit, and a dedicated beamformer-noise-reduction-system. The hearing aid device is configured to be worn in or at an ear of a user. The at least one environment sound input is configured to receive sound and to generate electrical sound signals representing sound. The wireless sound input is configured to receive wireless sound signals. The output transducer is configured to stimulate hearing of the hearing aid device user. The transmitter unit is configured to transmit signals representing sound and/or voice. The dedicated beamformer-noise-reduction-system is configured to retrieve a user voice signal representing the voice of a user from the electrical sound signals. The wireless sound input is configured to be wirelessly connected to a communication device and to receive wireless sound signals from the communication device. The transmitter unit is configured to be wirelessly connected to the communication device and to transmit the user voice signal to the communication device.
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公开(公告)号：US10176821B2
公开(公告)日：2019-01-08
申请号：US15445472
申请日：2017-02-28
Applicant: Oticon A/S
Inventor： Jesper Jensen , Jan Mark De Haan , Asger Heidemann Andersen
IPC: G10L21/02 , G10L21/0232 , G10L21/038 , G10L25/06 , G10L25/60 , A61N1/378 , H04R25/00
Abstract: A monaural intrusive speech intelligibility predictor unit comprises: first and second input units for providing time-frequency representations s(k,m) and x(k,m) of noise-free and noisy and/or processed versions of a target signal, respectively, k being a frequency bin index, k=1, 2, . . . , K, and m being a time index; first and second envelope extraction units for providing time-frequency sub-band representations of the signals sj(m) and xj(m), j being a frequency sub-band index, j=1, 2, . . . , J; first and second time-frequency segment division units for dividing the time-frequency sub-band representations sj(m) and xj(m) into time-frequency segments Sm and Xm corresponding to a number N of successive samples of the sub-band signals; an intermediate speech intelligibility calculation unit adapted for providing intermediate speech intelligibility coefficients dm estimating an intelligibility of said time-frequency segment Xm, based on said time-frequency segments Sm and Xm or normalized and/or transformed versions {tilde over (S)}m, and {tilde over (X)}m thereof; and a final monaural speech intelligibility calculation unit for calculating a final monaural speech intelligibility predictor d estimating an intelligibility of said noisy and/or processed version x of the target signal by combining said intermediate speech intelligibility coefficients dm, or a transformed version thereof, over time. A hearing aid comprises a monaural, intrusive intelligibility predictor unit, and a configurable signal processor adapted to control or influence the processing of one or more electric input signals representing environment sound to maximize the final speech intelligibility predictor d. A binaural hearing aid system comprises first and second hearing aids.
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公开(公告)号：US09712928B2
公开(公告)日：2017-07-18
申请号：US15010670
申请日：2016-01-29
Applicant: Oticon A/S
Inventor： Michael Syskind Pedersen , Jan Mark De Haan , Pauli Minnaar
CPC classification number: H04R25/552 , H04R1/1083 , H04R25/558 , H04R2225/41 , H04R2225/43 , H04R2225/61
Abstract: A binaural hearing system comprising left and right hearing devices is provided, each comprising an input unit providing an electric input signal representing an environmental sound; a noise reduction system for estimating and reducing a noise component of the electric input signal; antenna and transceiver circuitry allowing the exchange of data between the hearing devices. The binaural hearing system is—in a mode of operation, where a sound source is predominantly audible at a first one of the hearing devices—configured to transmit the estimate of the noise component determined in a second one of the hearing devices to the first hearing device and to use said estimate to reduce the noise component in the electric signal of the first hearing device and to provide a noise reduced signal in the first hearing device. Thereby improved noise reduction is provided for use, e.g. in hearing aids, in non-symmetric acoustic situations.
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Patent Agency Ranking
公开(公告)号：US09516430B2
公开(公告)日：2016-12-06
申请号：US14677261
申请日：2015-04-02
Applicant: Oticon A/S
Inventor： Jesper Jensen , Michael Syskind Pedersen , Jan Mark De Haan
CPC classification number: H04R25/552 , G10L25/78 , H04R25/405 , H04R25/407 , H04R25/554 , H04R25/558 , H04R2225/43 , H04R2225/61 , H04R2430/20
Abstract: A binaural hearing assistance system includes left and right hearing assistance devices, and a user interface. The left and right hearing assistance devices comprises a) at least two input units for providing a time-frequency representation of an input signal in a number of frequency bands and a number of time instances; and b) a multi-input unit noise reduction system comprising a multi-channel beamformer filtering unit operationally coupled to said at least two input units and configured to provide a beamformed signal. The binaural hearing assistance system is configured to allow a user to indicate a direction to or location of a target signal source relative to the user via said user interface.
Abstract translation: 双耳助听系统包括左右助听装置和用户界面。 左和右助听装置包括：a）至少两个输入单元，用于在多个频带和多个时间实例中提供输入信号的时间频率表示; 以及b）多输入单元噪声降低系统，其包括可操作地耦合到所述至少两个输入单元并被配置为提供波束形成信号的多通道波束成形器滤波单元。 双耳助听系统被配置为允许用户经由所述用户界面指示目标信号源相对于用户的方向或位置。
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公开(公告)号：US10341786B2
公开(公告)日：2019-07-02
申请号：US14561960
申请日：2014-12-05
Applicant: Oticon A/S
Inventor： Michael Syskind Pedersen , Jesper Jensen , Jan Mark De Haan
Abstract: The present invention regards a hearing aid device at least one environment sound input, a wireless sound input, an output transducer, electric circuitry, a transmitter unit, and a dedicated beamformer-noise-reduction-system. The hearing aid device is configured to be worn in or at an ear of a user. The at least one environment sound input is configured to receive sound and to generate electrical sound signals representing sound. The wireless sound input is configured to receive wireless sound signals. The output transducer is configured to stimulate hearing of the hearing aid device user. The transmitter unit is configured to transmit signals representing sound and/or voice. The dedicated beamformer-noise-reduction-system is configured to retrieve a user voice signal representing the voice of a user from the electrical sound signals. The wireless sound input is configured to be wirelessly connected to a communication device and to receive wireless sound signals from the communication device. The transmitter unit is configured to be wirelessly connected to the communication device and to transmit the user voice signal to the communication device.
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公开(公告)号：US10277990B2
公开(公告)日：2019-04-30
申请号：US15885969
申请日：2018-02-01
Applicant: Oticon A/S
Inventor： Anders Højsgaard Thomsen , Jan Petersen , Jan Mark De Haan
Abstract: An adaptive level estimator for providing a level estimate of an electric input signal representing sound is provided. The adaptive level estimator comprises a first level estimator configured to provide a first level estimate of the electric input signal in a first number K1 of frequency bands; a second level estimator configured to provide a second level estimate of the electric input signal and/or associated attack/release time constants in a second number K2 of frequency bands, wherein K2 is smaller than K1; and a level control unit receiving said first and second level estimates and configured to provide said resulting level estimate based on said first and said second level estimates and/or said associated attack/release time constants. The invention may e.g. be used in devices or applications that benefit from a dynamic adaptation of an input signal level to a listener's (possibly limited) dynamic range of sound level perception, or to any other specific dynamic range deviating from that of the environment sound.
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公开(公告)号：US10231062B2
公开(公告)日：2019-03-12
申请号：US15608294
申请日：2017-05-30
Applicant: Oticon A/S
Inventor： Michael Syskind Pedersen , Jan Mark De Haan , Jesper Jensen
IPC: H04R25/00 , G10L21/0208 , H04R3/00
Abstract: A hearing aid comprises a resulting beam former (Y) for providing a resulting beamformed signal YBF based on first and second electric input signals IN1 and IN2, first and second sets of complex frequency dependent weighting parameters W11(k), W12(k) and W21(k), W22(k), and a resulting complex, frequency dependent adaptation parameter β(k). β(k) may be determined as / +c), where * denotes the complex conjugation and · denotes the statistical expectation operator, and c is a constant, and wherein said adaptive beam former filtering unit (BFU) comprises a smoothing unit for implementing said statistical expectation operator by smoothing the complex expression C2*·C1 and the real expression |C2>2 over time. Alternatively, β(k) may be determined from the following expression β = w C 1 H C v w C 2 w C 2 H C v w C 2 , where wC1 and wC2 are the beamformer weights representing the first (C1) and the second (C2) beamformers, respectively, Cv is a noise covariance matrix, and H denotes Hermitian transposition. Corresponding methods of operating a hearing aid, and a hearing aid utilizing smoothing β(k) based on adaptive covariance smoothing are disclosed.
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公开(公告)号：US10225669B2
公开(公告)日：2019-03-05
申请号：US15895266
申请日：2018-02-13
Applicant: Oticon A/S
Inventor： Jesper Jensen , Asger Heidemann Andersen , Jan Mark De Haan
Abstract: The application relates to a binaural hearing system comprising left and right hearing devices, e.g. hearing aids, each comprising a) a multitude of input units, each providing a time-variant electric input signal xi(t) representing sound received at an ith input unit, t representing time, the electric input signal xi(t) comprising a target signal component si(t) and a noise signal component vi(t), the target signal component originating from a target signal source; b) a configurable signal processing unit for processing the electric input signals and providing a processed signal y(t); c) an output unit for creating output stimuli to the user, d) transceiver circuitry allowing information to be exchanged between the hearing devices, and e) a binaural speech intelligibility (SI) prediction unit for providing a binaural SI-measure of the predicted speech intelligibility of the user when exposed to said output stimuli, based on processed signals yl(t), yr(t) from the signal processing units of the respective left and right hearing devices. This allows the hearing devices to control the processing of the respective electric input signals based on said binaural SI-measure.
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