发明名称 |
Direct conversion radio receiving system using digital signal processing for channel filtering and down conversion to base band |
摘要 |
A radio receiving system, which receives an input signal in a direct conversion receiving mode through the use of a plurality of cascaded channel filters, each including a complex coefficient filter, to obtain a desired waveform, wherein a center frequency of a preliminary channel filter corresponds more closely with the frequency of the desired waveform than a center frequency of a subsequent channel filter.
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申请公布号 |
US2003058976(A1) |
申请公布日期 |
2003.03.27 |
申请号 |
US20020278540 |
申请日期 |
2002.10.23 |
申请人 |
OHTA GEN-ICHIRO;INOGAI KAZUNORI;SUDO HIROAKI;SASAKI FUJIO |
发明人 |
OHTA GEN-ICHIRO;INOGAI KAZUNORI;SUDO HIROAKI;SASAKI FUJIO |
分类号 |
H04B1/26;H03D3/00;H03D7/16;H03H17/02;H04B1/00;H04B1/28;H04L5/06;(IPC1-7):H04B1/26;H04B1/10 |
主分类号 |
H04B1/26 |
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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