发明授权
- 专利标题： Methods and systems for neutral-to-ground communication
- 专利标题（中）： 中立地面通信的方法和系统
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申请号： US09690618申请日： 2000-10-17
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公开(公告)号： US06856647B1公开(公告)日： 2005-02-15
- 发明人: Scott C. Evans , John E. Hershey
- 申请人： Scott C. Evans , John E. Hershey
- 申请人地址： US NY Niskayuna
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 当前专利权人地址： US NY Niskayuna
- 代理机构： Fletcher Yoder
- 主分类号： H04L25/02
- IPC分类号： H04L25/02 ; H04B3/54 ; H04M7/02
摘要：
A method of distributing wide band data using a neutral-to-ground circuit within an electrical wiring installation includes modifying a load center with an interface module which interfaces to the neutral-to-ground circuit and configuring the interface module to compensate for varying impedance within the neutral-to-ground circuit to improve data transmission characteristics. Multiple embodiments are included within the method for compensation of varying impedance including channel sounding, spectral waterfilling, and communications using spread spectrum techniques, for example, frequency hopping and direct sequencing techniques.
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