发明名称 |
Frequency staggered frequency shift keying modulation |
摘要 |
A frequency modulation method is proposed that enables an imprinting of a digital message formed by a sequence of symbols on a set of frequency bands. Each symbol of the digital message is hereby assigned just one symbol value out of a defined set of symbol values. According to the method at least two symbol transmission channels are defined with each symbol transmission channel being formed by a sub-set of frequency bands selected from the set of frequency bands and with each frequency band of a symbol transmission channel being allocated to a symbol value of the set of symbol values in a one-to-one relation such, that the symbol transmission channels defined differ from each other in at least one frequency band selected and/or in an allocation of a frequency band to a symbol value. Further, each of the defined symbol transmission channels is successively modulated with a single symbol value of the digital message according to the channel allocation scheme of the respective symbol transmission channel.
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申请公布号 |
US7457370(B2) |
申请公布日期 |
2008.11.25 |
申请号 |
US20050101055 |
申请日期 |
2005.04.06 |
申请人 |
SONY DEUTSCHLAND GMBH |
发明人 |
JUERGENSEN JENS-UWE;STIRLING-GALLACHER RICHARD |
分类号 |
H03C3/00;H04L27/10;H04B1/69;H04B1/713;H04L27/12;H04L27/148;H04L27/152;H04L27/18;H04L27/32 |
主分类号 |
H03C3/00 |
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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