发明名称 |
Digital filter |
摘要 |
The present invention provides a digital filter which is used for a transmitter receiver in a mobile communication system and is capable of reducing the circuit scale. The digital filter divides digital data comprising a plurality of channels into high-order and low-order bits. The digital filter performs a filtering operation at a rate equivalent to a digital data input rate doubled and further multiplied by the number of channels in a time-sharing manner. The digital filter synthesizes filtering output results of data divided from the same digital data to generate a filtering output for each channel, enabling to reduce the circuit scale of the filtering operation section and the entire circuit scale.
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申请公布号 |
US2002061057(A1) |
申请公布日期 |
2002.05.23 |
申请号 |
US20010987875 |
申请日期 |
2001.11.16 |
申请人 |
WAKAMATSU MAKOTO;WATANABE JUN |
发明人 |
WAKAMATSU MAKOTO;WATANABE JUN |
分类号 |
H03H17/06;H04B1/707;H04L25/03;(IPC1-7):H04K1/00 |
主分类号 |
H03H17/06 |
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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