发明名称 |
TX preemphasis filter and TX power control based high speed two wire modem |
摘要 |
A two wire modem 200, 500, 600 and a method 1000, 1100 select a carrier frequency and a symbol rate from a predetermined plurality of carrier frequencies and symbol rates to communicate with another modem over a communication media in a full duplex mode based on signal and echo characteristics of the communication media estimated by the modem.
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申请公布号 |
US5463661(A) |
申请公布日期 |
1995.10.31 |
申请号 |
US19950393611 |
申请日期 |
1995.02.23 |
申请人 |
MOTOROLA, INC. |
发明人 |
MORAN, III, JOHN L.;SRIDHAR, MANICKAM R.;BROWN, WILLIAM L. |
分类号 |
H04B3/04;H04B3/23;H04L5/14;H04L27/00;(IPC1-7):H04L5/16 |
主分类号 |
H04B3/04 |
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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