Network interface apparatus

Details Network interface apparatus Network interface apparatus

1996-10-29

1998-05-05

Harrell, Robert B.

G06F 1300

Patent

active

057488932

ABSTRACT:
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.

REFERENCES:
patent: 5329521 (1994-07-01), Walsh et al.
patent: 5442754 (1995-08-01), Datwyler et al.
patent: 5509127 (1996-04-01), Datwyler et al.
Basic Knowledge of Local Area Network, John E. McNamara, Apr. 20, 1986, published by Kyoritsu Shuppan Co., Ltd.
"Computer Network", Gyo Yagi et al, Jun. 15, 1983, published by Asakura Shoten Co., Ltd.

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