发明名称 |
SECOND ORDER MICROPHONE ARRAY |
摘要 |
A directional microphone system is disclosed, which comprises circuitry for low pass filtering a first order signal, and circuitry for high pass filtering a second order signal. The system further comprises circuitry for summing the low pass filtered first order signal and the high pass filtered second order signal. A method of determining whether a plurality of microphones have sufficiently matched frequency response characteristics to be used in a multi-order directional microphone array is also disclosed. For a microphone array having at least three microphones, wherein one of the microphones is disposed between the other of the microphones, a method of determining the arrangement of the microphones in the array is also disclosed. |
申请公布号 |
WO0228140(A3) |
申请公布日期 |
2003.08.21 |
申请号 |
WO2001US30781 |
申请日期 |
2001.09.28 |
申请人 |
KNOWLES ELECTRONICS, LLC |
发明人 |
WARREN, DANIEL, MAX;THOMPSON, STEPHEN, C. |
分类号 |
H04R1/40;H04R3/00;H04R25/00;H04R29/00 |
主分类号 |
H04R1/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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