Fault tolerant computer system

Details Fault tolerant computer system Fault tolerant computer system

G - Physics

06

F

G06F 11/20 (2006.01)

Patent

CA 2294659

A fault tolerant computer system is provided which can immediately detect that its main computer is down and which can accurately pinpoint the point where the processing is suspended, without delaying the processing which the computer should originally execute. The fault tolerant computer system has: the main computer; an auxiliary computer for normally virtually executing the same processing as that executed by the main computer; a communication element connected to an object, the communication element being a boundary scan element; and a switch unit for switching connection between the communication element and either the main computer or the auxiliary computer. The switch unit switches the connection in accordance with the presence or absence of a clock signal supplied from the main computer to the communication element.

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