发明名称 |
Method and apparatus for coordinating multi-point to point communications in a multi-tone data transmission system |
摘要 |
A variety of bi-directional data transmission systems that facilitate communications between a plurality of remote units ( 15 ) and a central unit ( 10 ) using a frame based discrete multi-carrier transmission scheme are disclosed. In each of the systems, frames transmitted from the plurality of remote units ( 15 ) are synchronized at the central unit ( 10 ). A variety of novel modem arrangements and methods for coordinating communications between a plurality of remote units ( 15 ) and a central unit ( 10 ) to facilitate multi-point-to-point transmission are disclosed. The invention has application in a wide variety of data transmission schemes including Asymmetric Digital Subscriber Line systems that includes the transmission of signals over twisted pair, fiber and/or hybrid telephone lines, cable systems that includes the transmission of signals over a coaxial cable, and digital cellular television systems that include the transmission of radio signals.
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申请公布号 |
US6937623(B2) |
申请公布日期 |
2005.08.30 |
申请号 |
US20020051593 |
申请日期 |
2002.01.17 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
CIOFFI JOHN M.;BINGHAM JOHN;JACOBSEN KRISTA S. |
分类号 |
H04L1/00;H04L5/02;(IPC1-7):H04J3/12 |
主分类号 |
H04L1/00 |
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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