Invention Grant
- Patent Title: Method to reduce feedback in hearing aids
- Patent Title (中): 降低助听器反馈的方法
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Application No.: US12624088Application Date: 2009-11-23
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Publication No.: US08638962B2Publication Date: 2014-01-28
- Inventor: Thomas Bo Elmedyb , Michael Syskind Pedersen , Ulrik Kjems , Thomas Kaulberg
- Applicant: Thomas Bo Elmedyb , Michael Syskind Pedersen , Ulrik Kjems , Thomas Kaulberg
- Applicant Address: DK Smorum
- Assignee: Oticon A/S
- Current Assignee: Oticon A/S
- Current Assignee Address: DK Smorum
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: EP08105855 20081124
- Main IPC: H04R25/00
- IPC: H04R25/00

Abstract:
Disclosed is a method of reducing feedback in a hearing aid adapted to be worn by a user, the method comprising the step of: receiving an audio input signal in an input transducer in the hearing aid; wherein the method further comprises the steps of: transforming the input signal into the frequency domain; dividing the audio signal into a plurality of frequency bands; determining a threshold frequency over which a plurality of upper frequency bands lies; multiplying each of the plurality of upper frequency bands by a random phase, thereby obtaining a plurality of phase randomized upper frequency bands; synthesizing the plurality of phase randomized upper frequency bands and the lower frequency bands to an output signal; transforming the output signal into the time-domain; and transmitting the output signal to an output transducer of the hearing aid.
Public/Granted literature
- US20100128911A1 METHOD TO REDUCE FEEDBACK IN HEARING AIDS Public/Granted day:2010-05-27
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