Multiplex communications – Wide area network – Packet switching
Patent
1991-08-28
1994-05-03
Safourek, Benedict V.
Multiplex communications
Wide area network
Packet switching
370 941, 371 81, 375 38, 34089505, H04J 116, H04J 314, H04J 302
Patent
active
053094352
ABSTRACT:
A multi-ring data transmission system which uses a plurality of transmission lines and provides a first circuit to add a sequential number of each of data packets and transmit the data packets to each of the transmission lines. A second circuit error check whether each of the data packets received via each of the transmission lines is normal or erroneous. A third circuit successively employs the data packets which are determined as being normal in the second circuit and are received via one of the transmission lines as received data packets in a sequence of the sequential numbers.
REFERENCES:
patent: 4536874 (1985-08-01), Stoffel et al.
patent: 4558428 (1985-12-01), Matsumura et al.
patent: 4587651 (1986-05-01), Nelson et al.
patent: 4594706 (1986-06-01), Kobayashi
patent: 4707693 (1987-11-01), Hessel
patent: 4710944 (1987-12-01), Nossen
patent: 4947388 (1990-08-01), Kuwahara
Fujitsu Limited
Patel Ajit
Safourek Benedict V.
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