公开(公告)号：US11425511B2

公开(公告)日：2022-08-23

申请号：US16930994

申请日：2020-07-16

Applicant: Oticon A/S

Inventor： Jens Troelsen ,  Poul Henriksen

IPC: H04R25/00 ,  H01Q1/27 ,  H01Q1/52

Abstract: A hearing aid comprises a housing, comprising: a substrate carrying a wireless interface, the substrate further carrying a processor, the substrate arranged in the housing; an antenna arranged in the housing, the antenna being connected to the wireless interface; the antenna configured to emit and/or receive electromagnetic fields, an electronic element, connected to the processor via an electrical connection line; wherein a decoupling element is provided in the electrical connection line wherein the decoupling element has a characteristic frequency at the frequency, at which the antenna is tuned to radiate and/or receive the electromagnetic fields.

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.

公开(公告)号：US20220264231A1

公开(公告)日：2022-08-18

申请号：US17673089

申请日：2022-02-16

Applicant: Oticon A/S

Inventor： Meng GUO ,  Anders MENG ,  Bernhard KUENZLE

IPC: H04R25/00

Abstract: A hearing aid includes a forward path including a) an input transducer proving an electric input signal, b) a hearing aid processor, and c) an output transducer. The hearing aid further includes d) a feedback control system having d1) a feedback path estimator including an adaptive filter configured to provide an estimate of a current feedback path from the output transducer to at least one input transducer, the feedback path estimator being controllable via a feedback estimation control input, and d2) a combination unit in the forward path configured to subtract the estimate (v′) of the current feedback path signal (v) from a signal of the forward path (y) to provide a feedback corrected signal (e), and e) a detector for providing the feedback estimation control input in dependence of an offset control signal indicative of an offset in the electric input signal or a signal originating therefrom.

公开(公告)号：US20220256295A1

公开(公告)日：2022-08-11

申请号：US17667293

申请日：2022-02-08

Applicant: Oticon A/S

Inventor： Michael Syskind Pedersen ,  Jesper Jensen ,  Christian Asp Mogensen

IPC: H04R25/00

Abstract: A hearing aid includes at least two microphones, providing respective at least two electric input signals representing sound around the user; a filter bank converting the electric input signals into signals as a function of time and frequency; a directional system connected to the microphones and being configured to provide a filtered signal in dependence of the 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 the microphones is selected as a reference microphone, thereby providing a reference input signal for each frequency band. The reference microphone may be selected in dependence of directional data related to directional characteristics of the microphones. The reference microphone may be different for at least two frequency bands. The reference microphone may be adaptively selected based on a logic criterion.

公开(公告)号：US20220210095A1

公开(公告)日：2022-06-30

申请号：US17697071

申请日：2022-03-17

Applicant: Oticon A/S

Inventor： Franz TREUE ,  Bjarne KLEMMENSEN ,  Rune SØ

IPC: H04L49/60 ,  H04B1/00 ,  H04R25/00 ,  H04B7/212 ,  H01Q1/22 ,  H04W28/02 ,  H04W88/06

Abstract: A method and wireless communication device use a first processing unit to perform a first communication event within a first communication window by use of a first communication protocol, a second processing unit to perform a second communication event within a second communication window by use of a second communication protocol, and a wireless communication unit connected to a radio-frequency antenna to transmit and/or receive a packet wirelessly. The first and second processing units may perform the first and second communication events via the wireless communication unit. The second processing unit or the wireless communication unit may transmit an event signal to the first processing unit when performing the second communication event or receiving a packet, respectively, to allow the first processing unit to arrange the first communication window (or first communication event) with respect to the second communication window (or second communication event) to minimize interference.

公开(公告)号：US20220191629A1

公开(公告)日：2022-06-16

申请号：US17548275

申请日：2021-12-10

Applicant: Oticon A/S

Inventor： Morten Vinding ,  Henrik Damborg Hald

IPC: H04R25/00

Abstract: The present disclosure relates to a hearing aid having at least two wireless interfaces, where the operation of one wireless risk introducing noise into the at least second wireless interface. The first wireless interface being configured so that it does not, or at least to a limited degree, introduce noise into the second wireless interface.

公开(公告)号：US11348580B2

公开(公告)日：2022-05-31

申请号：US16684367

申请日：2019-11-14

Applicant: OTICON A/S

Inventor： Vijay Kumar Bhat

IPC: G10L15/22 ,  H04R25/00 ,  G10L13/00

Abstract: A hearing aid device for processing signals comprising audio in order to assist a hearing impaired user and being configured to be arranged at, behind and/or in an ear of the user is disclosed. The hearing aid device comprises at least one input transducer, an output transducer, an antenna, a wireless interface, and a signal processing unit. The at least one input transducer is adapted for receiving signals comprising audio. The output transducer is adapted for providing signals comprising audio to the user. The antenna is adapted for wirelessly communicating with a respective external device. The wireless interface is adapted for receiving and/or sending data via the antenna. The signal processing unit is adapted for processing signals comprising audio in order to assist a hearing impaired user. Furthermore the signal processing unit is adapted for extracting speech signals from the signals comprising audio and for generating control signals based on the speech signals. At least one of the control signals generated by the signal processing unit is adapted for controlling the respective external device. The wireless interface is adapted for sending the at least one of the control signals to the respective external device via the antenna in order to control the respective external device.

公开(公告)号：US11330378B1

公开(公告)日：2022-05-10

申请号：US17153168

申请日：2021-01-20

Applicant: Oticon A/S

Inventor： Zuzana Jel{hacek over (c)}icová ,  Rasmus Jones ,  David Thorn Blix

IPC: H04R25/00 ,  G10L25/78 ,  G06N3/04 ,  G06N3/08

Abstract: A hearing device, e.g. a hearing aid or a headset, configured to be worn by a user at or in an ear or to be fully or partially implanted in the head at an ear of the user comprises an input unit for providing at least one electric input signal in a time-frequency representation and a signal processor comprising a neural network configured to provide respective gain values G(k,t) in said time-frequency representation for reducing noise components in said at least one electric input signal. The neural network comprises at least one layer defined as a modified gated recurrent unit, termed Peak GRU, comprising memory in the form of a hidden state vector h, and wherein an output vector o is provided by said Peak GRU in dependence of an input vector x and said hidden state vector h, wherein an output o(j,t) of the Peak GRU at a given time step t is stored as said hidden state h(j,t) and used in the calculation of the output o(j,t+1) in the next time step t+1. The signal processor is configured to provide that the number of updated channels among Nch processing channels of the Peak GRU for said input vector x(t) and said hidden state vector h(t−1) at said given time instance t is limited to a number of peak values Np, where Np is smaller than Nch. A method of operating a hearing device is further disclosed.

公开(公告)号：US11330366B2

公开(公告)日：2022-05-10

申请号：US16855232

申请日：2020-04-22

Applicant: Oticon A/S

Inventor： Michael Syskind Pedersen ,  Carsten Scheel ,  Martin Bergmann ,  Henrik Bay ,  Morten Pedersen ,  Bent Krogsgaard ,  Jacob Mikkelsen ,  Stefan Gram ,  Jan M. De Haan ,  Andreas Thelander Bertelsen

IPC: H04R25/00 ,  H04R1/40

Abstract: A sound capture device configured to be worn by a person and/or to be located on a surface is configured to pick up target sound from a target sound source s. The sound capture device comprises a) an input unit providing a multitude of electric input signals, each comprising a target signal component and a noise signal component; b) a directional noise reduction system comprising a beamformer unit coupled to said multitude of input signals and configured to provide an estimate of the target sound s. The beamformer unit comprises b1) target maintaining, reference beamformer providing a current reference signal; and b2) a target cancelling beamformer providing a current target cancelling sign. The directional noise reduction system is configured to operate in at least two modes in dependence of a mode control signal, 1) in a directional mode and 2) in a non-directional, omni-directional mode. The sound capture device further comprises c) antenna and transceiver circuitry for establishing an audio link to another device, and to transmit said estimate of the target sound s to said another device, and d) a mode controller for determining said mode control signal in dependence of said current reference signal and said current target cancelling signal. A method of operating a sound capture device is further disclosed.

公开(公告)号：US20220141601A1

公开(公告)日：2022-05-05

申请号：US17575349

申请日：2022-01-13

Applicant: Oticon A/S

Inventor： Thomas LUNNER ,  Alejandro LOPEZ VALDES ,  Henrik BENDSEN ,  Claus CHRISTENSEN ,  Peter SCHMIDT ,  Ole ANDERSEN ,  Mikkel NIELSEN ,  Tanveer BHUIYAN

IPC: H04R25/00 ,  A61B5/398 ,  G06F3/01 ,  H04R3/00 ,  A61B5/00 ,  A61B5/16

Abstract: A method for picking up body signals from the head of a user comprises a) placing first and second electrodes on first and second different positions at a first side of the user's head in direct or capacitive contact with the user's head, said first side comprising a first eye of the user, the first and second electrodes being configured to pick up first and second electric potentials, respectively, from the user's body, and b) providing an Electrooculography signal representative of a corneo-retinal potential difference of said first eye of the user in dependence of said at first and second electric potentials. The first and second positions may be (substantially) located in a plane including the first eye of the user. A portable electronic device providing an Electrooculography signal, and a hearing device utilizing an Electrooculography signal is further disclosed.