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AssigneeMitsubishi Materials Corporation
InventorsNobuyuki Yamashita, Kazuyoshi Tari, Kenzo Nakamura, Takao Yokoshima, Hisashi Hashimoto, Kazuyuki Miyake
Estimating the term…
The power line communications system of the present invention comprises a power line L that has a plurality of branch lines LB1 to LBn branched at a branch point; communications devices T1 to Tn that are connected to the branch lines LB1 to LBn and perform sending and receiving of data via the branch lines LB1 to LBn; and a relay device 1 that is disposed at the branch point and relays sending of the data. It is also provided with a branching device Y that consists of a plurality of couplers K1 to Kn that couple the relay device 1 and the plurality of branch lines LB1 to LBn and have different resonance frequencies for each of the respective branch lines LB1 to LBn, with the relay device 1 performing sending of data by changing the communication frequency to the resonance frequency of the branch lines LB1 to LBn through which the data are sent.
A power line communications system comprising:
A power line communications method that performs communication between a plurality of communications devices via a power line that has a plurality of branch lines branched at a branch point, consisting of the steps of:
Dependencies are inferred from the claim text.