发明申请
- 专利标题： Low Frequency Phase Matching for Microphones
- 专利标题（中）： 麦克风的低频相位匹配
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申请号： US11660734申请日： 2005-08-22
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公开(公告)号： US20070258597A1公开(公告)日： 2007-11-08
- 发明人: Karsten Rasmussen , Kim Petersen , Ulrik Kjems
- 申请人： Karsten Rasmussen , Kim Petersen , Ulrik Kjems
- 申请人地址： DK SMORUM DK-2765
- 专利权人： OTICON A/S
- 当前专利权人： OTICON A/S
- 当前专利权人地址： DK SMORUM DK-2765
- 优先权： DKPA200401280 20040824
- 国际申请： PCT/EP05/54117 WO 20050822
- 主分类号： H04R5/00
- IPC分类号： H04R5/00
摘要：
The invention relates to a communication device having at least two microphones, where in order to match the microphone performance in respect of the phase response a correction filter in the form of a IIR filter is implemented and where the amplitude of the transfer function for the correction filter is the inverse of the difference between the two microphone amplitudes.
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