Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2011-05-17
2011-05-17
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C711S154000
Reexamination Certificate
active
07945818
ABSTRACT:
A method and an apparatus are disclosed for the coupling of a safety-critical process from a safe environment to an environment that is not safe or to an environment that is safe but has fewer processing channels. To this end, provision is made of a method which processes a data record that is relevant to the safety-critical process to form a respective safe protocol using at least two redundant processing channels in accordance with identical laws, and forms a common safe protocol taking into account at least two redundant safe coupling protocols. When writing at least elements of the common safety-based protocol using a processing channel with write authorization, another processing channel is used to check whether these elements are identical to one another. Access to a common buffer register for the purpose of storing these elements is enabled only when they are identical to one another.
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Landwehr Heinz-Carsten
Oster Viktor
Schmidt Joachim
Beausoliel Robert
DeMont & Breyer LLC
Mehrmanesh Elmira
Phoenix Contact GmbH & Co. KG
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