POWER-LINE CARRIER COMMUNICATION SYSTEM AND MODEM FOR POWER-LINE CARRIER COMMUNICATION

摘要

PROBLEM TO BE SOLVED: To simply and inexpensively build a larger-scale network, regardless of the unit of pole transformers 3.;SOLUTION: A filter apparatus 1 for interrupting power signals and allowing high-frequency signals used for communication to pass through, is connected between transformer section networks A and B which are adjacent to each other. By doing this, high-frequency signals can be transmitted directly between the networks A and B through the apparatus 1.;COPYRIGHT: (C)2003,JPO