Apparatus and method for processing errors associated with data

Details Apparatus and method for processing errors associated with data Apparatus and method for processing errors associated with data

1996-04-30

1998-06-30

Gordon, Paul P.

Excavating

371 212, 371 372, 371 391, 371 401, G11C 2900

Patent

active

057744823

ABSTRACT:
An apparatus and method for transferring data within a computer includes a first computer sub-system connected to a second computer sub-system. The first computer sub-system produces data that is passed to the second computer sub-system. The second computer sub-system includes error detection circuitry to identify an original error in the passed data. The original error is identified with a first error identification technique, such as an error correction code technique. The second computer sub-system also includes error perpetuation circuitry to perpetuate an error in the data as it is passed to another computer sub-system. The error perpetuation circuitry perpetuates the error according to a second error identification technique, such as a parity bit error technique. The original data error is thereby perpetuated by converting it to the error identification format used by the computer sub-system to which the data is transferred. Consequently, the original data error is readily identified when an attempt is made to use the data. By perpetuating the data error instead of processing it when it arises, error handling delays can be avoided if the faulty data is never used.

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