| 摘要 |
<p>PURPOSE:To improve the throughput by varying a kind of an error check code in a packet sent from a sender side station in an individual communication mode to a specific station. CONSTITUTION:An error check code generated by a code generating section 141 in an error check code generating section 14 is used in common for a network and used for data transmission in the broadcast mode and the other code generating sections 142-14N are used for data transfer addressed to a specific station, then the code generating section 141 is used when the result of check by a destination detection section 12 is in the broadcast mode, the data is a data for the entire network and a call connection packet for designating the reception station designation/error check code is sent. Moreover, in the case of the data transfer to a specific station, one of the code generating sections 142-14N is selected. A transmission station 1 manages entirely the kind of error check codes and an optional kind among codes not used for the data transfer to other station at present is selected.</p> |
