公开(公告)号：US5748893A

公开(公告)日：1998-05-05

申请号：US739436

申请日：1996-10-29

申请人： Tetsuhiko Hirata ,  Minoru Koizumi ,  Masayo Nagano ,  Yoshiaki Adachi ,  Hiroshi Wataya ,  Ken Onuki

发明人： Tetsuhiko Hirata ,  Minoru Koizumi ,  Masayo Nagano ,  Yoshiaki Adachi ,  Hiroshi Wataya ,  Ken Onuki

IPC分类号： G06F13/12 ,  G06F13/00

CPC分类号： G06F13/128

摘要： It is designed to connect a duplicated LAN to a network terminal such as a controller having a standard serial or parallel interface, a computer having only one LAN interface, or a computer having only one communication line interface. The network interface apparatus for connecting a network terminal and a duplicated LAN comprises a device for controlling interfaces with the network terminal and the LAN transmission line of each of the duplicated LAN, a buffer, and a sending device to both, and the data from the network terminal is buffered in the buffer, and when the buffered data reaches a fixed amount, the data is sent to both LANs of the duplicated LAN. On the other hand, with respect to the data received from each LAN transmission line of the duplicated LAN, only the data which is judged as earlier arrival data is sent to the network terminal.

摘要翻译： 它被设计为将重复的LAN连接到诸如具有标准串行或并行接口的控制器的网络终端，仅具有一个LAN接口的计算机或仅具有一个通信线路接口的计算机。 用于连接网络终端和复制LAN的网络接口设备包括用于控制与网络终端的接口和每个复制LAN的LAN传输线，缓冲器和发送设备的接口的设备，以及来自 网络终端被缓冲在缓冲器中，当缓冲数据达到固定数量时，数据被发送到复制LAN的两个LAN。 另一方面，对于从复制LAN的每个LAN传输线接收到的数据，仅将被判断为较早的到达数据的数据发送到网络终端。