-
61.发明授权公开(公告)号：US11917370B2
公开(公告)日：2024-02-27
申请号：US18084209
申请日：2022-12-19
Applicant: Oticon A/S
Inventor： Eleni Koutrouli , Michael Syskind Pedersen , Jesper Jensen , Jan M. De Haan
CPC classification number: H04R25/407 , H04R25/405 , H04R25/604 , A61N1/36038 , H04R25/55 , H04R2225/021 , H04R2225/55 , H04R2225/67
Abstract: A binaural hearing system comprises first and second hearing aids, each comprising antenna and transceiver circuitry allowing the exchange of audio signals between them and a BTE-part adapted for being located at or behind the external ear (pinna) of the user and comprising front and rear input transducers providing respective front and rear electric input signals. Each 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. The inputs to the primary 2-channel beamformers are, locally generated, front and rear electric input signals. The inputs to the secondary 2-channel beamformer may be beamformed signals from the first and second hearing aids respectively. The spatially filtered signal of the secondary 2-channel beamformer may comprise an estimate of a target signal in the environment of the user.
-
公开(公告)号：US20230353952A1
公开(公告)日：2023-11-02
申请号：US18347690
申请日：2023-07-06
Applicant: Oticon A/S
Inventor： Michael Syskind Pedersen , Jesper Jensen , Christian Asp Mogensen
IPC: H04R25/00
CPC classification number: H04R25/405 , H04R25/353 , H04R25/407 , H04R2225/021 , H04R2225/025
Abstract: A hearing aid adapted for being worn by a user comprises at least two microphones, providing respective at least two electric input signals representing sound; a filter bank converting the at least two electric input signals into signals as a function of time and frequency; a directional system connected to said at least two microphones and being configured to provide a filtered signal in dependence of said at least two electric input signals and fixed or adaptively updated beamformer weights. At least one direction to a target sound source is defined as a target direction. For each frequency band, one of said at least two microphones is selected as a reference microphone, thereby providing a reference input signal for each frequency band. The reference microphone for a given frequency band may be selected in dependence of directional data related to directional characteristics of the at least two microphones.
-
公开(公告)号：US11503414B2
公开(公告)日：2022-11-15
申请号：US17380864
申请日：2021-07-20
Applicant: Oticon A/S
Inventor： Jesper Jensen
Abstract: A hearing device, e.g. a hearing aid, comprises a) a multitude of input units, each providing an electric input signal representing sound in the environment of the user in a time-frequency representation, wherein the sound is a mixture of speech and additive noise or other distortions, e.g. reverberation, b) a multitude of beamformer filtering units, each being configured to receive at least two, e.g. all, of said multitude of electric input signals, each of said multitude of beamformer filtering units being configured to provide a beamformed signal representative of the sound in a different one of a multitude of spatial segments, e.g. spatial cells, around the user, c) a multitude of speech probability estimators each configured to receive the beamformed signal for a particular spatial segment and to estimate a probability that said particular spatial segment contains speech at a given point in time and frequency, wherein at least one, e.g. all, of the multitude of speech probability estimators is/are implemented as a trained neural network, e.g. a deep neural network. The invention may e.g. be used in hearing aids or communication devices, such as headsets, or telephones, or speaker phones.
-
公开(公告)号：US20220240026A1
公开(公告)日：2022-07-28
申请号：US17575968
申请日：2022-01-14
Applicant: Oticon A/S
Inventor： Adel Zahedi , Michael Syskind Pedersen , Thomas Ulrich Christiansen , Lars Bramsløw , Jesper Jensen
Abstract: A hearing device adapted for being worn at or in an ear of a user, comprises a) an input unit comprising at last two input transducers each for converting sound around said hearing device to an electric input signal representing said sound, thereby providing at least two electric input signals; b) a beamformer filter comprising a minimum processing beamformer defined by optimized beamformer weights, the beamformer filter being configured to provide a filtered signal in dependence of said at least two electric input signals and said optimized beamformer weights; c) a reference signal representing sound around said hearing device; d) a performance criterion for said minimum processing beamformer. The minimum processing beamformer is a beamformer that provides the filtered signal with as little modification as possible in terms of a selected distance measure compared to said reference signal, while still fulfilling said performance criterion. The optimized beamformer weights are adaptively determined in dependence of said at least two electric input signals, said reference signal, said distance measure, and said performance criterion. A method of operating a hearing device is further disclosed. The invention may e.g. be used in hearing aids or headsets.
-
公开(公告)号：US11140494B2
公开(公告)日：2021-10-05
申请号：US16832980
申请日：2020-03-27
Applicant: Oticon A/S
Inventor： Michael Syskind Pedersen , Jesper Jensen
Abstract: A hearing system comprises a hearing device worn on the head, or fully or partially implanted in the head, of a user, and external audio transmitters. The hearing system allows wireless communication to be established between the hearing device and the audio transmitters. The hearing device comprises microphones providing respective electric input signals; a beamformer filter providing a beamformed signal from the electric input signals; and an output unit. The hearing system further comprises a selector/mixer for selecting and possibly mixing one or more of the electric input signals or the beamformed signal and external electric signals from the audio transmitters, and providing a current input sound signal based thereon for presentation to the user. The selector/mixer is controlled by a source selection processor, which determines the source selection control signal based on a comparison of the beamformed signal and the external electric sound signals or processed versions thereof.
-
Patent Agency Ranking
公开(公告)号：US11102590B2
公开(公告)日：2021-08-24
申请号：US16514231
申请日：2019-07-17
Applicant: Oticon A/S
Inventor： Jesper Jensen
Abstract: A hearing device, e.g. a hearing aid, comprises a) a multitude of input units, each providing an electric input signal representing sound in the environment of the user in a time-frequency representation, wherein the sound is a mixture of speech and additive noise or other distortions, e.g. reverberation, b) a multitude of beamformer filtering units, each being configured to receive at least two, e.g. all, of said multitude of electric input signals, each of said multitude of beamformer filtering units being configured to provide a beamformed signal representative of the sound in a different one of a multitude of spatial segments, e.g. spatial cells, around the user, c) a multitude of speech probability estimators each configured to receive the beamformed signal for a particular spatial segment and to estimate a probability that said particular spatial segment contains speech at a given point in time and frequency, wherein at least one, e.g. all, of the multitude of speech probability estimators is/are implemented as a trained neural network, e.g. a deep neural network. The invention may e.g. be used in hearing aids or communication devices, such as headsets, or telephones, or speaker phones.
-
67.发明授权公开(公告)号：US10887703B2
公开(公告)日：2021-01-05
申请号：US16584668
申请日：2019-09-26
Applicant: Oticon A/S
Inventor： Eleni Koutrouli , Michael Syskind Pedersen , Jesper Jensen , Jan M. De Haan
Abstract: A hearing system comprises a first hearing device, e.g. a hearing aid. The hearing system comprises at least three input transducers, one of which being selected as a reference input transducer providing a reference input signal, at least two adaptive 2-channel beamformers, each providing a spatially filtered signal based on first and second beamformer-input signals, wherein the adaptive 2-channel beamformers maintain unit amplitude and phase for a target component of said reference input signal. The at least two 2-channel beamformers are coupled in a layered structure at least comprising a primary layer and a secondary layer. The adaptive parameter of a given 2-channel beamformer is determined from the first and second beamformer-input signals for the 2-channel beamformer in question.
-
68.发明授权公开(公告)号：US10701494B2
公开(公告)日：2020-06-30
申请号：US16156723
申请日：2018-10-10
Applicant: Oticon A/S
Inventor： Jesper Jensen , Michael Syskind Pedersen , Adel Zahedi
IPC: H04R25/00
Abstract: The application relates to a hearing device, e.g. a hearing aid, adapted for being worn by a user and for receiving sound from the environment of the user to process the sound with a view to the user's intelligibility of speech in said sound, wherein an estimate of the user's intelligibility of speech in said sound being defined by a speech intelligibility measure I of said sound at a current point in time t, the hearing device comprising a) an input unit for providing a number of electric input signals y, each representing said sound in the environment of the user, b) a signal processor for processing said number of electric input signals y according to a configurable parameter setting Θ of one or more processing algorithms, which when applied to said number of electric input signals y provides a processed signal yp(Θ) in dependence thereof, the signal processor being configured to provide a resulting signal yres, c) a controller configured to control the processor to provide said resulting signal yres at a current point in time t in dependence of c1) a parameter set Φ defining a hearing profile of the user, c2) said electric input signal(s) y or characteristics extracted from said electric input signal(s), e.g. a noise covariance matrix Cv and/or covariance matrix CY of noisy signals, c3) a current value I(y) of said speech intelligibility measure I for at least one of said electric input signals y, c4) a desired value Ides of said speech intelligibility measure, c5) a first parameter setting Θ1 of said one or more processing algorithms, c6) a current value I(yp(Θ1)) of said speech intelligibility measure I for a first processed signal yp(Θ1) based on said first parameter setting Θ1, and c7) a second parameter setting Θ′ of said one or more processing algorithms, which, when applied to said number of electric input signals y, provides a second processed signal yp(Θ′) exhibiting said desired value Ides of said speech intelligibility measure. The application further relates to a method of operating a hearing device. The invention may e.g. be used in hearing aid systems, or other portable audio processing systems.
-
69.发明授权公开(公告)号：US10433076B2
公开(公告)日：2019-10-01
申请号：US16291899
申请日：2019-03-04
Applicant: Oticon A/S
Inventor： Jesper Jensen , Andreas Thelander Bertelsen , Michael Syskind Pedersen
Abstract: An audio processing device comprises a) at least one input unit for providing a time-frequency representation Y(k,n) of an electric input signal representing sound consisting of target speech and noise signal components, where k and n are frequency band and time frame indices, respectively, b) a noise reduction system configured to: determine a first signal to noise ratio estimate γ(k,n) of said electric input signal, and determine a second signal to noise signal ratio estimate ζ(k,n) of said electric input signal from said first signal to noise ratio estimate γ(k,n) based on a recursive algorithm providing non-linear smoothing, and wherein parameters of said smoothing are determined in dependence of the first and/or the second signal to noise ratio estimates corresponding to a multitude of frequency band indices. The invention may be used in hearing aids, headsets, ear phones, active ear protection systems, handsfree telephone systems, mobile telephones, etc.
-
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.
-
-
-
-
-
-
-
-
-
Search Results
93
records
(took 0.034 seconds)
