| 摘要 |
A method for performing communication by utilizing the AC current in a power line without requiring any modulation or superposition of a high frequency. In the communication method utilizing the AC current in a secondary power line (L), an electric load (e.g. a load current) is imparted to the secondary power line (L), the load current is added to one AC current wavelength of the secondary power line (L), and an AC current including the processed waveform is transmitted as an information signal.
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