发明名称 |
Band pass and notch filters for echo reduction with less phase distortion |
摘要 |
A complementary comb filter includes a plurality of band pass filters and a plurality of notch filters, wherein the notch filters have the same center frequencies as the band pass filters or the same center frequencies as the dead bands defined by the band pass filters. Phase distortion by the notch filters occurs primarily in the notch, thereby eliminating distortion of the signal.
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申请公布号 |
US6608898(B1) |
申请公布日期 |
2003.08.19 |
申请号 |
US19990413677 |
申请日期 |
1999.10.06 |
申请人 |
ACOUSTIC TECHNOLOGIES, INC. |
发明人 |
MOORE KENDALL G.;THOMASSON SAMUEL L. |
分类号 |
H03H11/04;H03H19/00;H04M9/08;(IPC1-7):H04M9/08 |
主分类号 |
H03H11/04 |
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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