| 摘要 |
A data transmission system for causing one of a plurality of nodes commonly connected to a transmission line to obtain a transmission right by a token as a transmission right assignment instruction. The system includes at least one master node which stores and renews the number of transmission requests that cannot be previously processed. Upon reception of the transmission right by the master node by means of the token, the master node sends a token to assign the transmission right to a slave node having the largest number of transmission requests that could not be previously processed. Otherwise, the master node sends a token to assign the transmission right to a normal downstream slave node to be assigned with the token.
|
