Multiplex communications – Wide area network – Packet switching
Patent
1991-12-06
1994-01-25
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
371 374, 371 391, H04J 312, G06F 1110, H03M 1300
Patent
active
052822095
ABSTRACT:
This system is formed, on the one hand, by a transmitting section (1) comprising coders (CA, CB, CC) for coding according to an error detection code the data to be transmitted over the main channels and comprising a coder (CS) for an auxiliary channel (CHS) and, on the other hand, a receiving section (2) constituted by error detecting circuits (DA, DB, DC, DS). In the transmitting section there is provided a combining circuit (20) for combining the data to be transmitted over the main channels, whereas the auxiliary channel is used for transmitting the combined data. In the receiving section there are provided decombining circuits (USA, USB, USC) for producing replicas of the transmitted data for each of the main transmission channels on the basis of data transmitted over the auxiliary channel. These replicas are used in case of failing transmission channels.
REFERENCES:
patent: 4276649 (1981-06-01), Groenendaal et al.
patent: 4355392 (1982-10-01), Doi et al.
patent: 4686675 (1987-04-01), Morimoto et al.
patent: 4737951 (1988-04-01), Kruger et al.
patent: 4862457 (1989-08-01), Morimoto
patent: 4961190 (1990-10-01), Nakajima
Barschall Anne E.
Nguyen Chau T.
Olms Douglas W.
U.S. Philips Corporation
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