High-reliability computer system
AssigneeNEC Corporation
InventorToshio Kikuchi
Life of this patent
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Abstract
A high-reliability computer system is provided in which error correcting codes are preliminarily added to the signals to be applied to a voter from a plurality of computers by error correcting code encoders so that, even if an error resulting from a failure of the voter occurs, an error correcting code decoder can provide a correct result based on the error correcting codes, whereby a failure in the computers and error correcting code encoders can be avoided by means of the voter, a failure in the voter can be avoided by the error correcting code decoder, and a failure in the error correcting code decoder can be avoided by parallel redundancy arrangement.
Claims9
A high-reliability computer system, comprising:
- a plurality of computers with respective outputs;
- a plurality of error correcting code encoders connected to said plurality of computers for adding error correcting codes to said respective outputs;
- a voter connected to said plurality of error correcting code encoders which receives the outputs of said computers encoded with said error correcting codes, and which produces an output in agreement with a majority of the encoded outputs of said plurality of computers;
- and
- an error correcting code decoder connected to the output of the voter for detecting and correcting an error in the output of the voter by decoding the error correcting code added by the error correcting code encoders.
Dependencies are inferred from the claim text.