发明名称 |
Digital communication system |
摘要 |
A digital communications system suitable for high-speed data transmission includes a transmitter and a receiver providing the ability to selectively switch between multiple coding and decoding methods. The transmitter includes a plurality of trellis coders, each of which performs a different type of coding on a transmission signal. The receiver includes a plurality of Viterbi decoders, corresponding to the different types of coders in the transmitter, for decoding the transmission signal. The receiver also includes a selector for determining which of the decoder outputs to choose from based on the frequency of code violations detected in the transmission signal. The present invention thus provides a flexible apparatus for improving the quality of high-speed data transmissions.
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申请公布号 |
US5434886(A) |
申请公布日期 |
1995.07.18 |
申请号 |
US19930004390 |
申请日期 |
1993.01.14 |
申请人 |
HITACHI, LTD. |
发明人 |
KAZAWA, TOHRU;MIYAMOTO, TAKANORI;MIYAZAKI, KATSUYUKI |
分类号 |
H04L25/08;H03M13/23;H04L25/497;(IPC1-7):H04L5/12 |
主分类号 |
H04L25/08 |
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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