Multiplex communications – Fault recovery – Bypass an inoperative channel
Reexamination Certificate
2005-12-06
2005-12-06
Pham, Chi (Department: 2666)
Multiplex communications
Fault recovery
Bypass an inoperative channel
C370S217000
Reexamination Certificate
active
06973029
ABSTRACT:
The connection of serial bus systems which are known per se, but have no system-integrated redundancy apparatus, to one another by means of bus lines of redundant design, is accomplished by a redundancy apparatus which can be connected upstream is connected between the bus communications interface of a bus subscriber and the redundant bus lines. In this case, during operation, transmission always takes place on all the bus lines, and a fault-free bus line is selected at the receiving end. The redundancy apparatus has an evaluation stage that determines criteria of a data stream other than the presence or absence of data for a period of time and the content of said data stream for selecting one of the bus lines as the receiving line based on the criteria.
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ABB Patent GmbH
Abelson Ronald
Pham Chi
Rickin, Esq. Michael M.
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