发明名称 |
Band pass filter from two filters |
摘要 |
A band pass filter includes a pair of filters having different center frequencies and a difference amplifier coupled to the outputs of the filters. The filters preferably have response curves that intersect at -3 dB. The separation of the center frequencies determines, in part, the ripple in the response curve of the band pass filter.
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申请公布号 |
US6492865(B1) |
申请公布日期 |
2002.12.10 |
申请号 |
US20000491998 |
申请日期 |
2000.01.26 |
申请人 |
ACOUSTIC TECHNOLOGIES, INC. |
发明人 |
THOMASSON SAMUEL L. |
分类号 |
H03H11/12;H03H17/04;H03H19/00;(IPC1-7):H03K5/00 |
主分类号 |
H03H11/12 |
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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