发明名称 |
MULTIPLEXED CODEC FOR AN ADSL SYSTEM |
摘要 |
An ADSL central office transmission system for transmitting downstream DMT signals to a plurality of remote ADSL transceiver is disclosed. The system includes a DMT digital signal transceiver (300) that generates a time division multiplexed digital signal that includes a plurality of DMT signals to be sent on a plurality of ADSL lines. A digital to analog converter (302) converts the time division multiplexed digital signal into a time division multiplexed analog signal that includes a plurality of analog DMT signals. A switch (304) selectively connects the output of the digital to analog converter to each of a plurality of transmitters (306 and 308). The transmitters are configured to drive the plurality of ADSL lines (ADSL lines 1-2). Thus, the plurality ADSL lines are driven by the plurality of analog DMT signals.
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申请公布号 |
WO0049725(A9) |
申请公布日期 |
2001.09.20 |
申请号 |
WO2000US03277 |
申请日期 |
2000.02.08 |
申请人 |
LSI LOGIC CORPORATION |
发明人 |
CONROY, CORMAC, S.;SHENG, SAMUEL, W.;UEHARA, GREGORY, T. |
分类号 |
H04L5/02;(IPC1-7):H04B3/03;H04B3/23;H04J1/02 |
主分类号 |
H04L5/02 |
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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