| 摘要 |
PURPOSE:To totally reduce the time of data transmission, by starting the transmission of data blocks, without waiting for a response signal to the data block in succession to the end of the transmission of one data block. CONSTITUTION:Before a data block 4 which is a confirming signal or a retransmissiont request signal to a data block 3 reaches a transmission side 1, the transmission of the next data block 5 is started prior to the end of the transmission of the data block 3, and the transmission of a data block 7 in sucession to the end of the transmission of the data block 5 is strated. If the data block 4 is a retransmission request to the data block 3, the data block 3 is retransmitted from the data block 7. The end of transmission is performed at the transmission side 1 after the confirming signal to all the data blocks are waited. If there is any data block not receiving either the confirming signal or the retransmission request signal for a prescribed time or over, the retransmission of the data is performed. |
