G - Physics – 06 – F
Patent
G - Physics
06
F
354/223.1
G06F 11/10 (2006.01) H03M 13/15 (2006.01)
Patent
CA 1199410
ON-THE-FLY MULTIBYTE ERROR CORRECTING SYSTEM Abstract of the Disclosure An apparatus and method are disclosed for processing sydrome bytes in a multibyte error correcting system in which up to t errors are correctable by processing 2t syndrome bytes. The method involves converting syndrome bytes into t+l coefficients of the error locator polynomial by predetermined product operations and exclusive-OR operations involving selected syndrome bytes to produce cofactors that correspond to the desired coefficients when less than t errors occurred in the codeword. The cofactors are combined to produce coefficients when t errors occur and the correct set of coefficients are selected in accordance with the number of errors that are detected. The apparatus involves logical circuitry for obtaining sets of coefficients from selected syndrome bytes where each set is associated with a different number of errors in the codeword and in which a set of coefficients associated with t-1 errors is a cofactor of the set of coefficients associated with t errors.
438414
International Business Machines Corporation
Kerr Alexander
LandOfFree
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