发明授权
- 专利标题： Hearing instrument with improved initialisation of parameters of digital feedback suppression circuitry
- 专利标题（中）： 听力仪器改进数字反馈抑制电路参数初始化
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申请号： US12389297申请日： 2009-02-19
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公开(公告)号： US08243939B2公开(公告)日： 2012-08-14
- 发明人: Shawn Perman
- 申请人： Shawn Perman
- 申请人地址： DK Ballerup
- 专利权人： GN ReSound A/S
- 当前专利权人： GN ReSound A/S
- 当前专利权人地址： DK Ballerup
- 代理机构： Vista IP Law Group, LLP
- 优先权： DK200801847 20081230; DK200900160 20090203
- 主分类号： H04R29/00
- IPC分类号： H04R29/00 ; H04R25/00
摘要：
A method of modelling a feedback path from a receiver to a microphone in a hearing instrument, includes applying an electronic probe signal with an increasing level as a function of time to the receiver for conversion of the electronic probe signal into an acoustic probe signal output by the receiver, monitoring values of a first quality parameter calculated based at least in part on recorded microphone output signal, and after the first quality parameter reaches a predetermined first threshold value, determining at least one parameter of the feedback path based at least in part on the recorded microphone output signal values.
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