发明名称 |
Data transfer method and system in low voltage networks |
摘要 |
This invention relates to a method for data transmission in two-way communication via low-voltage systems that are linked to a higher order telecommunication network. Data transmission takes place within the low-voltage system at a high-frequency range of up to 30 MHz using band spreading of data signals and a transmit level below the specified radio interference or noise voltage limit, in that said band-spread data is given a direction coding to specify a logical direction within the low-voltage system using different sequences of a family of pseudo-random numbers to enable multiple-user operation, and in that the binary sequences of data with their user-specific spreading and direction-specific coding are identified by correlation using specified sequences at attenuation-dependent intervals within the low-voltage system, then said data sequences are regenerated and assigned new direction codes for forwarding.
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申请公布号 |
US6507573(B1) |
申请公布日期 |
2003.01.14 |
申请号 |
US19990381940 |
申请日期 |
1999.12.02 |
申请人 |
BRANDT FRANK;LUKANEK FRANK |
发明人 |
BRANDT FRANK;LUKANEK FRANK;HENSEN CHRISTIAN;SCHULZ WOLFGANG;SCHOENFELDT KAY |
分类号 |
H04J13/00;H04B3/54;H04B3/58;(IPC1-7):H04B7/216 |
主分类号 |
H04J13/00 |
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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