| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication device capable of determining a more proper master machine from the side of slave machines in connections among the master machines and the slave machines, in a state where there are a plurality of the master machines. SOLUTION: The standby state, the non-standby state or the extension-communication state or the line-wire communication state of the master machines are acquired from reply signals to beacons transmitted from the slave machine to each master machine. Display regions 421, 422, 423 and 424 that correspond to each master machine are set and displayed to a display 53 for the slave machine. COPYRIGHT: (C)2009,JPO&INPIT
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