发明名称 |
Ladder filter, analog equalizer and signal readout system |
摘要 |
A ladder filter includes multiple inductor sections, each including voltage-controlled current sources and capacitors. A second signal input terminal is provided for the filter separately from an ordinary signal input terminal and a signal, which has been input through the second terminal, is supplied to one of the voltage-controlled current sources by way of a gain calculator. By adjusting the gain obtained by the gain calculator to an appropriate value, the ladder filter can make the numerator of its transfer function freely definable.
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申请公布号 |
US2004070443(A1) |
申请公布日期 |
2004.04.15 |
申请号 |
US20030680129 |
申请日期 |
2003.10.08 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
DOSHO SHIRO;MORIE TAKASHI |
分类号 |
G11B5/09;G11B20/10;H03G5/16;H03H11/04;H03H11/18;H03H11/48;(IPC1-7):H03B1/00 |
主分类号 |
G11B5/09 |
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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