Enhanced error correction

Details Enhanced error correction Enhanced error correction

G - Physics

11

B

354/226

G11B 20/18 (2006.01)

Patent

CA 1056509

Abstract Multiple symbol correction employing auxiliary pointers is enhances by unique interaction of the code structures either with ambiguous auxiliary pointers or data structures for precisely locating errors. For example, a code apparatus can correct two symbols in error only with two error location pointers; with three error location pointers, the code cannot correct the errors since error location is ambiguous. Once this has been determined, the features set forth in the present invention are employed in order to delimit the error burst such that the code apparatus may correct two symbols in error, even with ambiguous error location pointers. With no auxiliary pointers, methods and apparatus can create such auxiliary pointers in particular data structures and error patterns.

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