发明授权
- 专利标题: Hearing aid having digital damping
- 专利标题(中): 助听器具有数字阻尼
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申请号: US09542133申请日: 2000-04-04
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公开(公告)号: US06466678B1公开(公告)日: 2002-10-15
- 发明人: Mead C. Killion , Chris W. Papalias , Anthony J. Becker , Dan Mapes-Riordan
- 申请人: Mead C. Killion , Chris W. Papalias , Anthony J. Becker , Dan Mapes-Riordan
- 主分类号: H04R2500
- IPC分类号: H04R2500
摘要:
A hearing aid is set forth that includes one or more hearing aid components that introduce an undesired undamped peak into the frequency response of the hearing aid. An electronic damping filter is utilized to compensate for the undamped peak. The electronic damping filter has a notch filter response that includes an inverse peak across the frequency range of the undamped peak thereby electronically damping the frequency response so that the hearing aid output is generally unaffected by the undesired characteristics of the inverse peak. The electronic damping filter may be programmable to vary the magnitude and/or shift the frequency of the inverse peak. A method is set forth that exploits this programmability and allows the same circuit topology to be used in two different hearing aids respectively having two different undamped peaks. A further method allows handling two or more peaks.
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