Communication device, communication method, program and communication system

摘要

A communication device includes: an electromagnetic-wave generating means for outputting an electromagnetic wave; and a transmitting/receiving means for transmitting data by modulating the electromagnetic wave in accordance with data as well as receiving data transmitted from the other device by demodulating the electromagnetic wave outputted by the electromagnetic-wave generating means or the electromagnetic wave outputted by the other device as the other party of communication, wherein the transmitting/receiving means transmits attribute information indicating communication ability of the device itself as well as receives attribute information indicating communication ability of the other device as the data, and the electromagnetic-wave generating means reduces power of the electromagnetic wave to be outputted after receiving the attribute information.

主权项

1. A communication device comprising:
an electromagnetic-wave generating means for outputting an electromagnetic wave; and a transmitting/receiving means for transmitting first data by modulating the electromagnetic wave, and receiving second data transmitted from another device by demodulating the electromagnetic wave outputted by the electromagnetic-wave generating means or the electromagnetic wave outputted by the other device as another party of communication, wherein the transmitting/receiving means transmits attribute information indicating communication ability of the communication device itself as the first data, and receives attribute information indicating communication ability of the other device as the second data, the received attribute information including information about a low RF output communication for performing communication at a low power and information about an intermittent RF output communication for performing communication in which output of the electromagnetic wave is repeatedly stopped for a fixed period, and the electromagnetic-wave generating means reduces power of the electromagnetic wave to be outputted by performing both of the low RF output communication and the intermittent RF output communication based on the received attribute information, wherein output of the electromagnetic wave at the low power is repeatedly stopped for the fixed period and the low power is higher than 0.3 A/m and lower than 1.5 A/m.