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公开(公告)号：US11582562B2
公开(公告)日：2023-02-14
申请号：US17109329
申请日：2020-12-02
Applicant: Oticon A/S
Inventor： Jesper Jensen , Nels Hede Rohde , Thomas Bentsen , Michael Syskind Pedersen , Svend Oscar Petersen
Abstract: A hearing system configured to be located at or in the head of a user, comprises a) at least two microphones providing at least two electric input signals, b) an own voice detector, c) access to a database (Ol, Hl) comprising c1) relative or absolute own voice transfer function(s), and corresponding c2) absolute or relative acoustic transfer functions for a multitude of test-persons, d) a processor connectable to the at least two microphones, to the own voice detector, and to the database. The processor is configured A) to estimate an own voice relative transfer function for sound from the user's mouth to at least one of the at least two microphones, and B) to estimate personalized relative or absolute head related acoustic transfer functions from at least one spatial location other than the user's mouth to at least one of the microphones of the hearing system in dependence of the estimated own voice relative transfer function(s) and the database (Ol, Hl). The hearing system further comprises e) a beamformer configured to receive the at least two electric input signals, or processed versions thereof, and to determine personalized beamformer weights based on the personalized relative or absolute head related acoustic transfer functions or impulse responses. A method of determining personalized beamformer coefficients (wk) is further disclosed.
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公开(公告)号：US11576001B2
公开(公告)日：2023-02-07
申请号：US17361615
申请日：2021-06-29
Applicant: Oticon A/S
Inventor： Michael Syskind Pedersen , Nels Hede Rohde , Thomas Bentsen , Anders Brødløs Olsen , Jesper Jensen , Peter Mølgaard Sørensen , Gusztáv Lõcsei
Abstract: A hearing aid comprises an input unit providing an electric input signal representing sound, a wake word detector configured identifying a particular wake word based on said electric input signal, and providing a wake word control signal indicative of whether, or with what probability, the wake word is detected, or an own voice detector estimating whether, or with what probability, the electric input signal originates from the voice of the user and providing an own voice control signal indicative thereof, transceiver circuitry establishing a communication link to another hearing aid allowing the transmission and/or reception of the electric input signal to/from the other hearing aid, and a pre-processor controlling the transceiver circuitry in dependence of the wake word control signal or the own voice control signal. A binaural hearing aid system and a method of operating a hearing aid are further disclosed.
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公开(公告)号：US11304014B2
公开(公告)日：2022-04-12
申请号：US17005972
申请日：2020-08-28
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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24.发明授权公开(公告)号：US11252515B2
公开(公告)日：2022-02-15
申请号：US17106453
申请日：2020-11-30
Applicant: Oticon A/S
Inventor： Eleni Koutrouli , Michael Syskind Pedersen , Jesper Jensen , Jan M. De Haan
Abstract: A binaural hearing system comprises a first and second hearing aids. The hearing aids each comprises antenna and transceiver circuitry allowing the exchange of audio signals between them. At least one of the hearing aids comprises primary and secondary adaptive 2-channel beamformers each providing a spatially filtered signal based on first and second beamformer-input signals. The primary and secondary 2-channel beamformers are coupled in a cascaded structure. In an embodiment, the spatially filtered signal of the secondary 2-channel beamformer may comprise an estimate of user's own voice. In an embodiment, the spatially filtered signal of the secondary 2-channel beamformer may comprise an estimate of a target signal in the environment. In an embodiment, the inputs to the secondary 2-channel beamformer may be beamformed signals from the first and second hearing aids respectively.
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公开(公告)号：US11109163B2
公开(公告)日：2021-08-31
申请号：US16256742
申请日：2019-01-24
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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Patent Agency Ranking
26.发明授权公开(公告)号：US10757511B2
公开(公告)日：2020-08-25
申请号：US16450629
申请日：2019-06-24
Applicant: Oticon A/S
Inventor： Michael Syskind Pedersen , Jesper Jensen
Abstract: A hearing device, e.g. a hearing aid, comprises first and second separate, interconnectable parts comprising first and second input transducers, respectively, for providing first and second electric input signals, respectively, representative of sound in an environment of the user, and a beamformer filtering unit configured to provide a spatially filtered signal based thereon, and a memory comprising a previously determined own voice transfer function corresponding to a target sound source located at said user's mouth. The hearing device is configured to determine an updated own voice transfer function according to activation of a predefined trigger, when the user's own voice is present, and to store an updated own voice transfer function in said memory. The hearing device further comprises at least one combination unit configured to apply a first multiplication factor to at least one of the first and second electric input signals, and a control unit configured to determine the first multiplication factor so as to decrease, e.g. minimize a difference measure representative of a difference between the previously determined own voice transfer function and the updated own voice transfer function.
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公开(公告)号：US10264367B2
公开(公告)日：2019-04-16
申请号：US15957164
申请日：2018-04-19
Applicant: Oticon A/S
Inventor： Michael Syskind Pedersen , Jesper Jensen
IPC: H04R25/00
Abstract: The disclosure relates to binaural hearing instruments and more particularly to reduction of processing time required in a binaural hearing aid system. According to the disclosure, there is provided a method comprising mono-directional transmission of data blocks comprising audio and/or information frames from one hearing instrument to the other hearing instrument or vice versa in a binaural hearing aid. According to the disclosure, the direction of transmission is determined by a quantity characterizing the presence of usable information content in the sound signal picked up by the hearing instruments of the binaural hearing aid. It is proposed to use one or more of local SNR, local voice activity detection indication, local level, local speech intelligibility estimate to determine the direction of transmission, although other quantities may be used.
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公开(公告)号：US10219083B2
公开(公告)日：2019-02-26
申请号：US15915734
申请日：2018-03-08
Applicant: Oticon A/S
Inventor： Mojtaba Farmani , Michael Syskind Pedersen , Jesper Jensen
Abstract: A hearing system comprising a) a multitude M of microphones, M≥2, adapted for picking up sound from the environment and to provide corresponding electric input signals rm(n), m=1, . . . , M, n representing time, rm(n) comprising a mixture of a target sound signal propagated via an acoustic propagation channel and possible additive noise signals vm(n); b) a transceiver configured to receive a wirelessly transmitted version of the target sound signal and providing an essentially noise-free target signal s(n); c) a signal processor configured to estimate a direction-of-arrival of the target sound signal relative to the user based on c1) a signal model for a received sound signal rm at microphone m through the acoustic propagation channel, wherein the mth acoustic propagation channel subjects the essentially noise-free target signal s(n) to an attenuation αm and a delay Dm; c2) a maximum likelihood methodology; and c3) relative transfer functions dm representing direction-dependent filtering effects of the head and torso of the user in the form of direction-dependent acoustic transfer functions from each of M−1 of said M microphones (m=1, . . . , M, m≠j) to a reference microphone (m=j) among said M microphones, wherein it is assumed that the attenuation αm is frequency independent whereas the delay Dm may be frequency dependent. The application further relates to a method. Embodiments of the disclosure may e.g. be useful in applications such as binaural hearing systems, e.g. binaural hearing aids systems.
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公开(公告)号：US10181328B2
公开(公告)日：2019-01-15
申请号：US14887989
申请日：2015-10-20
Applicant: Oticon A/S
Inventor： Jesper Jensen , Michael Syskind Pedersen , Mojtaba Farmani , Pauli Minnaar
IPC: G10L21/0232 , H04R25/00 , H04R5/033 , H04R1/10 , H04S7/00
Abstract: The present disclosure regards a hearing device configured to receive acoustical sound signals and to generate output sound signals comprising spatial cues.
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30.发明授权公开(公告)号：US10154353B2
公开(公告)日：2018-12-11
申请号：US15426760
申请日：2017-02-07
Applicant: Oticon A/S
Inventor： Jesper Jensen , Asger Heidemann Andersen , Jan Mark De Haan
IPC: H04R25/00 , G10L25/60 , G10L21/0272
Abstract: Signal processing methods for predicting the intelligibility of speech, e.g., in the form of an index that correlate highly with the fraction of words that an average listener (amongst a group of listeners with similar hearing profiles) would be able to understand from some speech material are proposed. Specifically, solutions to the problem of predicting the intelligibility of speech signals, which are distorted, e.g., by noise or reverberation, and which might have been passed through some signal processing device, e.g., a hearing aid are described. In summary, the disclosure present solutions to the following problems: 1. Monaural, non-intrusive intelligibility prediction of noisy/processed speech signals 2. Binaural, non-intrusive intelligibility prediction of noisy/processed speech signals 3. Monaural and binaural intelligibility enhancement of noisy speech signals.
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