Patent ID: 7443876

Claim:
An information processing terminal which is connected onto a network to which a plurality of additional information processing terminals are connected, and transmits a signal when it acquires a transmission privilege on the network, comprising: a bus status detecting means for detecting whether said network is busy or idle; a counting means for repeating count-up to reach an idle time unit if the network is idle as a detected result of said bus status detecting means; a control means for setting a node ID of said information processing terminal to be equal to a default node ID 0 , for managing a parameter incremented whenever the idle time unit is detected as a result of count-up by said counting means, for creating a transmission frame with said node ID and without transmission data when transmission data is not present and said parameter is equal to said node ID of said information processing terminal, and for creating a transmission frame with said node ID and with transmission data when transmission data is present and said parameter is equal to said node ID of said information processing terminal; and a transmitting means for transmitting the transmission frame created by said control means.