| 摘要 |
A communication control method for sequentially allocating transmitting rights to a plurality of nodes commonly connected to a single transmission line, wherein each of the nodes forms, when the own node has a transmitting right and when the own node has no data to be transmitted, a predetermined period of a no signal state in which any signal is not transmitted to the transmission line, whereby the circulating time of the transmitting rights from the node having the minimum node number to the node having the maximum node number can be shortened.
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