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    Hearing aid system for estimating acoustic transfer functions
    4.
    发明授权
    Hearing aid system for estimating acoustic transfer functions 有权

    公开(公告)号：US11510019B2

    公开(公告)日：2022-11-22

    申请号：US17186550

    申请日：2021-02-26

    Applicant: Oticon A/S

    Inventor： Nels Hede Rohde ,  Thomas Bentsen ,  Anders Brødløs Olsen ,  Michael Syskind Pedersen ,  Svend Feldt ,  Jesper Jensen

    IPC: H04R25/00 ,  H04M1/72409 ,  G01B17/00

    Abstract: A hearing aid system comprises a hearing aid, and a portable auxiliary device' adapted to establish a communication link between them. The hearing aid comprises a microphone providing an electric input signal, a signal processor, and an output unit. The auxiliary device comprises a microphone providing an auxiliary electric input signal, and a user control interface allowing a user to initiate a specific calibration mode of operation of the hearing aid system. The signal processor of the hearing aid is configured to receive corresponding time segments of said electric input signal and said auxiliary electric input signal to provide an estimate of an acoustic transfer function from said microphone of said auxiliary device to said microphone of said hearing aid. A method of operating a hearing aid system is further disclosed. The invention may e.g. be used in various applications related to own voice detection and estimation.

    Hearing device adapted to provide an estimate of a user's own voice
    5.
    发明授权
    Hearing device adapted to provide an estimate of a user's own voice 有权

    公开(公告)号：US12108214B2

    公开(公告)日：2024-10-01

    申请号：US17574773

    申请日：2022-01-13

    Applicant: Oticon A/S

    Inventor： Jan M. De Haan ,  Mirjana Adnadjevic ,  Svend Feldt

    IPC: H04R25/00 ,  H04R1/10

    CPC classification number: H04R25/405 ,  H04R1/1016 ,  H04R25/604 ,  H04R2430/23

    Abstract: A hearing device adapted to be worn by a user and for picking up sound containing the user's own voice is provided. The hearing device includes an input unit having first and second input transducers for converting sound to first and second electric input signals, respectively, representing the sound. The hearing device is configured to provide that the first and second input transducers are located on the user so that the user experiences first and second, acoustically different, acoustic environments, respectively, when the user wears the hearing device. The first acoustic environment may be defined as an environment where the own voice signal primarily originates from vibrating parts of the bones and skin or tissue. The second acoustic environment may be defined as an environment where the own voice signal primarily originates from the user's mouth or nose and is transmitted through air from said mouth or nose to the second input transducer(s). A method of operating a hearing device is further disclosed.

    Hearing system comprising a database of acoustic transfer functions
    6.
    发明授权
    Hearing system comprising a database of acoustic transfer functions 有权

    公开(公告)号：US12063477B2

    公开(公告)日：2024-08-13

    申请号：US17890647

    申请日：2022-08-18

    Applicant: Oticon A/S

    Inventor： Jan M. De Haan ,  Jesper Jensen ,  Michael Syskind Pedersen ,  Svend Feldt ,  Stig Petri ,  Jakob Sloth Lauridsen

    IPC: H04R25/00 ,  H04R1/40 ,  H04S7/00

    CPC classification number: H04R25/505 ,  H04R1/406 ,  H04R25/554 ,  H04S7/302 ,  H04S2420/01

    Abstract: A hearing system comprises a) a multitude of M of microphones providing M corresponding electric input signals xm(n), m=1, . . . , M, and n representing time, b) a processor connected to said multitude of microphones and providing a processed signal in dependence thereof, c) an output unit for providing an output signal in dependence of said processed signal, and d) a database (Θ) comprising a dictionary (Δpd) of previously determined acoustic transfer function vectors (ATFpd). The processor is configured A) to determine a constrained estimate of a current acoustic transfer function vector (ATFpd,cur) in dependence of said M electric input signals and said dictionary (Δpd), B) to determine an unconstrained estimate of a current acoustic transfer function vector (ATFuc,cur) in dependence of said M electric input signals, and C) to determine a resulting acoustic transfer function vector (ATF*) for a user of the hearing system in dependence thereof and of a confidence measure related to said electric input signals. A method of operating a hearing device is also disclosed. Thereby an improved noise reduction system for a hearing aid or headset may be provided.

    Hearing device adapted to provide an estimate of a user's own voice
    7.
    发明授权
    Hearing device adapted to provide an estimate of a user's own voice 有权

    公开(公告)号：US11259127B2

    公开(公告)日：2022-02-22

    申请号：US16826017

    申请日：2020-03-20

    Applicant: Oticon A/S

    Inventor： Jan M. De Haan ,  Mirjana Adnadjevic ,  Svend Feldt

    IPC: H04R25/00 ,  H04R1/10

    Abstract: A hearing device adapted to be worn by a user and for picking up sound containing the user's own voice is provided. The hearing device comprises a) an input unit comprising first and second input transducers for converting sound to first and second electric input signals, respectively, representing said sound; b) a processor configured to receive said first and second electric input signals and to provide a combined signal as a linear combination of the first and second electric input signals, wherein the combined signal comprises an estimate of the user's own voice, and c) wherein said hearing device is configured to provide that said first and second input transducers are located on said user at first and second locations, when worn by said user; and d) wherein said first and second locations are selected to provide that said first and second electric signals exhibit substantially different directional responses for sound from the user's mouth as well as from sound from sound sources located in an environment around the user. A method of operating a hearing device is further disclosed. Thereby an improved quality of an own voice estimate may be provided.

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