Invention Grant
- Patent Title: Feedback detector and a hearing device comprising a feedback detector
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Application No.: US16176862Application Date: 2018-10-31
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Publication No.: US10687152B2Publication Date: 2020-06-16
- Inventor: Martin Kuriger , Bernhard Kuenzle , Meng Guo
- Applicant: Oticon A/S
- Applicant Address: DK Smørum
- Assignee: OTICON A/S
- Current Assignee: OTICON A/S
- Current Assignee Address: DK Smørum
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@52d956f8
- Main IPC: H04R25/00
- IPC: H04R25/00 ; H04R3/02

Abstract:
A hearing device, e.g. a hearing aid, comprises an input transducer for providing an electric input signal representative of a sound in the environment of the hearing device, an output transducer for providing an output sound representative of said electric input signal, a signal processor operationally connected to the input and output transducers, and forming part of an electric forward path for processing said electric input signal and providing a processed electric output signal, and a feedback detector for providing first and second indications of current feedback in an external—acoustic and/or mechanical—feedback path from said output transducer to said input transducer. The feedback detector is configured to determine the first and second indications of current feedback, respectively, based on said electric input signal or a processed version thereof and—optionally—on a current open loop magnitude of a feedback loop defined by said forward path and said external feedback path. The first and second indications of current feedback are generated with first and second time constants, respectively, where the first time constant is larger than the second time constant. The application further relates to a method of estimating feedback in a hearing device.
Public/Granted literature
- US20190132686A1 FEEDBACK DETECTOR AND A HEARING DEVICE COMPRISING A FEEDBACK DETECTOR Public/Granted day:2019-05-02
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