发明名称 |
DIGITAL MODULATION AND DIGITAL DEMODULATION |
摘要 |
A digital modulator for receiving a data stream and converting the received data stream into a bit stream, wherein: a multiplexed block is generated by multiplexing dummy data at arbitrary positions within blocks that are sequentially segmented from the data stream; a first Reed-Solomon code is generated by Reed-Solomon coding using the multiplexed blocks as information sections; a plurality of second Reed-Solomon codes are generated by adding a plurality of scrambling Reed-Solomon codes each having data which represent a different scramble method at the same position as that of the dummy data and having an information section and a parity section whose code lengths are equal to each other to the first Reed-Solomon code; and second Reed-Solomon codes having desired characteristic out of the second Reed-Solomon codes are outputted.
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申请公布号 |
WO9853454(A1) |
申请公布日期 |
1998.11.26 |
申请号 |
WO1998JP02167 |
申请日期 |
1998.05.18 |
申请人 |
SANYO ELECTRIC CO., LTD.;KUNISA, AKIOMI;ITOH, NOBUO |
发明人 |
KUNISA, AKIOMI;ITOH, NOBUO |
分类号 |
G11B20/14;G11B20/18;H03M5/14;H03M13/31;H04L1/00;H04L25/03;(IPC1-7):G11B20/14 |
主分类号 |
G11B20/14 |
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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