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公开(公告)号：US20240007802A1
公开(公告)日：2024-01-04
申请号：US18343766
申请日：2023-06-29
Applicant: Oticon A/S
Inventor： Meng GUO , Anders MENG , Daniel PLEWE , Jakob Sloth LAURIDSEN , Mirjana ADNADJEVICA , Mojtaba FARMANI , Nels Hede ROHDE , Adel ZAHEDI
IPC: H04R25/00
CPC classification number: H04R25/453 , H04R2460/01 , H04R25/405
Abstract: A hearing aid comprises a forward path comprising a) an input transducer for converting sound (x(n), v(n)) in an environment around the hearing aid to an electric input signal (y(n)) representing said sound; b) a hearing aid processor for processing said electric input signal (y(n)), or a signal originating therefrom (e(n)), and to provide a processed signal (u(n)) based thereon; c) an output transducer for converting said processed signal (u(n)), or a signal originating therefrom (ua(n)), to acoustic stimuli presented to said eardrum of the user. The hearing aid further comprises d) a feedback control system for attenuating or cancelling feedback propagated via a feedback path (H) from an electric input signal to said output transducer to an electric output from said input transducer.
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公开(公告)号：US20240357296A1
公开(公告)日：2024-10-24
申请号：US18759161
申请日：2024-06-28
Applicant: Oticon A/S
Inventor： Jan M. DE HAAN , Jesper JENSEN , Michael Syskind PEDERSEN , Svend FELDT , Stig PETRI , Jakob Sloth LAURIDSEN
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.
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公开(公告)号：US20230054213A1
公开(公告)日：2023-02-23
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
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 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.
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