发明名称 |
xDSL modem having adaptive compensating filter of null generated by bridged tap |
摘要 |
A xDSL modem having an adaptive compensating filter of null generated by BT (Bridged Tap) minimizes transmission errors. The VDSL having a null compensating filter comprises a null compensator for finding a null frequency generated on a transfer function of a receiving signal before the DFE by predicting and tracing the null frequency to enlarge a signal component of the null frequency. The damage of a signal component resulting from the null generated by BT on a subscriber line is previously compensated before the equalizer. As a result, degradation of transmission speed of xDSL service is prevented and the number of taps in the equalizer is reduced, thereby reducing cost in embodiment of hardware.
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申请公布号 |
US2004125871(A1) |
申请公布日期 |
2004.07.01 |
申请号 |
US20030734997 |
申请日期 |
2003.12.12 |
申请人 |
KT CORPORATION |
发明人 |
KIM DONG KWUN;BAE BYEONG SOOK |
分类号 |
H04L29/10;H04B3/06;H04L25/03;(IPC1-7):H04B1/38;H04L5/16 |
主分类号 |
H04L29/10 |
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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