| 摘要 |
<p>PURPOSE:To obtain the information transfer system capable of improving information transfer speed without deteriorating line transfer efficiency at the time of HDLC-data transfer using ATM system. CONSTITUTION:In ATM information transfer system, an RS signal level change detection means 40, a level change data cell forming means 41 forming data cells by coding the output of the level change detection means, a transmission data cell forming means 42, an output control means 43 selectively outputting one of the outputs from the level change data cell forming means and the transmission data cell forming means to a transmission path, are provided on a transmission controller. On a reception controller, a means 44 resolving the data cell to be inputted from the transmission path, a transmission request signal level change detection means 45 detecting the signal level change of the transmission request signal data cell, and a means 46 generating CD signals when the level change of the transmission request signal is detected, are provided.</p> |
