Multiplex communications – Wide area network – Packet switching
Patent
1984-12-26
1987-01-20
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 89, H04J 326
Patent
active
046384774
ABSTRACT:
At least two packet exchangers are interconnected through an external transmission line to transmit a data packet. Each packet exchanger comprises a main controller for processing the data packet sent from a packet terminal, in a data link level and a packet level, and a connecting unit for sending the data packet sent from the main controller to the external transmission line and sending the data packet sent from the external transmission line to the main controller.
REFERENCES:
patent: 4287592 (1981-09-01), Paulish
patent: 4320500 (1982-03-01), Barberis et al.
patent: 4556972 (1985-12-01), Chan et al.
patent: 4561090 (1985-12-01), Turner
Kunimasa Koichi
Nakase Hiroshi
Okada Jun
Hitachi , Ltd.
Olms Douglas W.
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