| 摘要 |
PURPOSE: A power line communication is provided to give a product that a LAN(Local Area Network) as well as CCTV(Closed Circuit Television), a factory automation and an information and communication network associated with a computer and home appliance can be constructed and utilized in various fields such as a home, a private building and an underground arcade, etc., by using the power line of the existing building to realize a 2MBbps of high speed communication. CONSTITUTION: When a 500K of complex frequency is applied to a power line, the complex frequency(f) has a dual signal characteristic by overlaying an f/2 of frequency. A signaling system and the overlaid signal when inputted to a receiving terminal on the power line of an applying circuit are recovered without being weakened. An algorithm for complementing and processing as data in connection with a plurality of the signals is constructed, and number of signals are periodically overlaid.
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