发明名称 |
Demodulation apparatus |
摘要 |
A demodulation apparatus of the present invention comprises: an A/D converter for sampling and quantizing a baseband signal; a transversal filter having time-shifted tap coefficients; a decision unit for decoding the signal which has undergone the transversal filter; and a decision point estimation unit for instructing the transversal filter to select the tap coefficient to be selected based on information from the decision unit. Thus, the demodulation apparatus can operate at the same frequency as a sampling frequency of the A/D converter and can perform decision with accuracy equivalent to an arbitrary oversampling number.
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申请公布号 |
US6593805(B2) |
申请公布日期 |
2003.07.15 |
申请号 |
US20010852240 |
申请日期 |
2001.05.09 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KUNIEDA YOSHINORI;TOMITA KAZUO;YOMO HIDEKUNI |
分类号 |
H03H15/00;H04L7/02;H04L25/40;(IPC1-7):H03D3/00 |
主分类号 |
H03H15/00 |
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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