公开(公告)号：US11546707B2

公开(公告)日：2023-01-03

申请号：US16850884

申请日：2020-04-16

Applicant: Oticon A/S

Inventor： Nels Hede Rohde ,  Thomas Bentsen ,  Anders Brødløs Olsen ,  Asger Heidemann Andersen ,  Michael Syskind Pedersen ,  Svend Oscar Petersen ,  Jesper Jensen ,  Michael Smed Kristensen

IPC: H04R25/00 ,  G10L15/22 ,  G10L15/16 ,  G10L15/08

Abstract: A hearing device, e.g. a hearing aid, is configured to be arranged at least partly on a user's head or at least partly implanted in a user's head. The hearing device comprises a) at least one input transducer for picking up an input sound signal from the environment and providing at least one electric input signal representing said input sound signal; b) a signal processor providing a processed signal based on one or more of said at least one electric input signals; c) an output unit for converting said processed signal or a signal originating therefrom to stimuli perceivable by said user as sound; d) a keyword spotting system comprising d1) a keyword detector configured to detect a limited number of predefined keywords or phrases or sounds in said at least one electric input signal or in a signal derived therefrom, and to provide a keyword indicator of whether or not, or with what probability, said keywords or phrases or sounds are detected, and d2) an own voice detector for providing an own voice indicator estimating whether or not, or with what probability, a given input sound signal originates from the voice of the user of the hearing device. The hearing device further comprises e) a controller configured to provide an own-voice-keyword indicator of whether or not or with what probability a given one of said keywords or phrases or sounds is currently detected and spoken by said user, said own-voice-keyword indicator being dependent on said keyword indicator and said own voice indicator.

公开(公告)号：US10966034B2

公开(公告)日：2021-03-30

申请号：US16249306

申请日：2019-01-16

Applicant: Oticon A/S

Inventor： Asger Heidemann Andersen ,  Jan M. De Haan ,  Jesper Jensen

IPC: G10L21/00 ,  H04R25/00 ,  G10L25/84 ,  G10L21/0364 ,  G10L15/02 ,  G10L25/30 ,  G10L21/02 ,  G10L21/057

Abstract: A method of training an algorithm for optimizing intelligibility of speech components of a sound signal in hearing aids, headsets, etc., comprises a) providing a first database comprising a multitude of predefined time segments of first electric input signals representing sound and corresponding measured speech intelligibilities; b) determining optimized first parameters of a first algorithm by optimizing it with said predefined time segments and said corresponding measured speech intelligibilities, the first algorithm providing corresponding predicted speech intelligibilities; c) providing a second database comprising a multitude of time segments of second electric input signals representing sound, d) determining optimized second parameters of a second algorithm by optimizing it with said multitude of time segments, said second algorithm being configured to provide processed second electric input signals exhibiting respective predicted speech intelligibilities estimated by said first algorithm, said optimizing being conducted under a constraint of maximizing said predicted speech intelligibility.

公开(公告)号：US10791402B2

公开(公告)日：2020-09-29

申请号：US16425670

申请日：2019-05-29

Applicant: Oticon A/S

Inventor： Michael Syskind Pedersen ,  Jesper Jensen ,  Jan Mark De Haan

IPC: H04R25/00 ,  H04R1/10

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.

公开(公告)号：US10728677B2

公开(公告)日：2020-07-28

申请号：US16218172

申请日：2018-12-12

Applicant: Oticon A/S

Inventor： Michael Syskind Pedersen ,  Jesper Jensen

IPC: H04R25/00 ,  H04R3/00

Abstract: The application relates to a hearing device, e.g. a hearing aid, adapted for being located at or in an ear of a user, or for being fully or partially implanted in the head of the user. The application further relates to a method of operating a hearing device. The hearing device comprises a) an input unit for providing at least one electric input signal in a frequency sub-band representation comprising a number K of frequency bands, b) a frequency band to channel allocation unit for allocating said K frequency bands to a number N of frequency channels for each of said electric input signals, wherein K>N; c) antenna and transceiver circuitry allowing reception of at least one further electric signal in said N frequency channels from another device, e.g. another hearing device, d) a first beamformer filtering unit for providing at least one channel beamformer based on said at least one electric input signal and said at least one further electric signal received from said other device, in said N frequency channels. The hearing device may further comprise a level to gain transformation unit for receiving said at least one channel beamformer and providing a post filter gain for each frequency channel in dependence thereof. The invention may e.g. be used in binaural hearing aid systems.

公开(公告)号：US20190394577A1

公开(公告)日：2019-12-26

申请号：US16450629

申请日：2019-06-24

Applicant: Oticon A/S

Inventor： Michael Syskind Pedersen ,  Jesper Jensen

IPC: H04R25/00 ,  H04R29/00

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.

公开(公告)号：US10431239B2

公开(公告)日：2019-10-01

申请号：US16212405

申请日：2018-12-06

Applicant: Oticon A/S

Inventor： Jesper Jensen ,  Michael Syskind Pedersen ,  Mojtaba Farmani ,  Pauli Minnaar

IPC: H04R25/00 ,  G10L21/0232 ,  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.

公开(公告)号：US10375490B2

公开(公告)日：2019-08-06

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

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：US20180359572A1

公开(公告)日：2018-12-13

申请号：US16003396

申请日：2018-06-08

Applicant: Oticon A/S

Inventor： Jesper Jensen ,  Jan Mark De Haan ,  Michael Syskind Pedersen

IPC: H04R25/00

CPC classification number: H04R25/407 ,  H04R1/406 ,  H04R25/552 ,  H04R2420/01

Abstract: A microphone system comprises a multitude of microphones; a signal processor connected to said number of microphones, and being configured to estimate a direction-to and/or a position of the target sound source relative to the microphone system based on a maximum likelihood methodology; and a database Θ comprising a dictionary of relative transfer functions representing direction-dependent acoustic transfer functions from said target signal source to each of said microphones relative to a reference microphone among said microphones, wherein individual dictionary elements of said database Θ of relative transfer functions comprises relative transfer functions for a number of different directions and/or positions relative to the microphone system; and wherein the signal processor is configured to determine one or more of the most likely directions to or locations of said target sound source. The invention may e.g. be used for the hearing aids or other portable audio communication devices.

公开(公告)号：US10129663B2

公开(公告)日：2018-11-13

申请号：US15792434

申请日：2017-10-24

Applicant: OTICON A/S

Inventor： Jesper Jensen ,  Michael Syskind Pedersen

IPC: H04R25/00 ,  H04R3/00

Abstract: A partner microphone unit comprising a) a multitude microphones for picking up a sound from the environment providing corresponding electric input signals, each comprising a target signal component and a noise signal component; b) a multi-input unit noise reduction system for providing an estimate Ŝ of the target sound s comprising the person's voice and comprising a multi-input beamformer filtering unit coupled to said input units and configured to determine filter weights for providing a beamformed signal, wherein signal components from other directions than a direction of the target signal source are attenuated, whereas signal components from the direction of the target signal source are left un-attenuated; c) antenna and transceiver circuitry for establishing an audio link to another device; and wherein the multi-input beamformer filtering unit comprises an adaptive beamformer is provided.

公开(公告)号：US09980055B2

公开(公告)日：2018-05-22

申请号：US15290643

申请日：2016-10-11

Applicant: Oticon A/S

Inventor： Jesper Jensen ,  Mojtaba Farmani ,  Michael Syskind Pedersen

IPC: H04R5/00 ,  H04R25/00

CPC classification number: H04R25/407 ,  G01S3/8036 ,  G01S3/8083 ,  H04R25/405 ,  H04R25/552 ,  H04R25/554 ,  H04R2420/01

Abstract: The problem of estimating the direction to one or more sound sources of interest relative to a user wearing a pair of hearing devices, e.g. hearing aids, is dealt with. A target signal is generated by a target signal source and transmitted through an acoustic channel to a microphone of a hearing system. Due to additive environmental noise, a noisy acoustic signal is received at the microphones of the hearing system. An essentially noise-free version of the target signal is transmitted to the hearing devices of the hearing system via a wireless connection. Each of the hearing devices comprises a signal processing unit comprising a sound propagation model of the acoustic propagation channel from the target sound source to the hearing device when worn by the user. The sound propagation model is configured to be used for estimating a direction-of-arrival of the target sound signal relative to the user.