Fault-tolerant computer architecture
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United States of America Patent
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May 13, 1997
Grant Date -
N/A
app pub date -
Jan 18, 1996
filing date -
Jan 27, 1995
priority date (Note) -
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Abstract
In order to perform a predetermined function, to detect failures, and to further perform the function after detection of a failure, a computer comprises two redundant processing chains and a monitoring device monitoring operating of the two chains, each chain comprising an acquisition circuit, a transmission circuit, and a processor performing the function and monitoring operating of the acquisition and transmission circuits of the other chain, and of the monitoring device, and issuing operating statuses of the elements monitored, the computer further comprising a voting device receiving the operating statuses in order to determine which elements have actually broken down, and a selection device intended to only output from the computer the results provided by a chain operating properly.
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