Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Patent
1998-03-19
2000-12-26
De Cady, Albert
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
G11C 2900
Patent
active
061675482
ABSTRACT:
A data error correcting method and apparatus reads two dimensional block data having row data and row error correcting codes and column data and column error correcting codes. In the block data, one column error correcting code is assigned to one column data group, and individual column data groups and individual column error correcting codes are alternately arranged. A control unit corrects errors in the block data on a row by row basis using the row error correcting codes and the row data. The control unit also corrects errors on a column by column basis, in parallel with the row errors, using the column error correcting codes and the column data. The control unit includes a compensation input data generator having a data adjustor and a Galois multiplier. The data adjustor computes a Compensation Galois constant for compensating the input order of the data.
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Cady Albert De
Chase Shelly A
Fujitsu Limited
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