| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication apparatus and communication method in which, even in the case where a plurality of types of communication apparatus according to different communication systems are connected to a common transmission line, communication can be performed without incurring signal collision.SOLUTION: A communication apparatus is configured to perform communication using a first communication system, which can not communicate with any other communication apparatus performing communication using a second communication system, through a power line to which the other communication apparatus performing communication using the second communication system is connectable. The communication apparatus includes: an AC cycle detector 130 for generating a synchronizing signal based on an AC power waveform of the power line; a communication controller 120 which performs control to acquire a band used for communication by the communication apparatus based on the synchronizing signal, performs control so that the other communication apparatus does not perform communication in the band acquired by the communication apparatus, and transmits a first control signal which is set to identify the other communication apparatus, to the other communication apparatus having a second communication control unit capable of detecting the first control signal; and a data communicator 110 for communicating with the other communication apparatus employing the first communication system, while using the band. |
