发明名称 |
Frequency multiplexed full duplex 4800 BPS modem |
摘要 |
4800 B/S full duplex operation of a frequency-multiplexing modem over the switched telephone network without cancellation is made possible by combining 900-baud, 32-state operation with a combination of analog filtering and raised cosine digital filtering and stop bit robbing.
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申请公布号 |
US5038366(A) |
申请公布日期 |
1991.08.06 |
申请号 |
US19900472367 |
申请日期 |
1990.01.29 |
申请人 |
HYCOM, INC. |
发明人 |
MOTLEY, DAVID M.;STOCKMAN, JOHN F. |
分类号 |
H04L5/14 |
主分类号 |
H04L5/14 |
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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