Detecting and correcting errors in data

Details Detecting and correcting errors in data Detecting and correcting errors in data

2006-09-26

2006-09-26

Kerveros, James C. (Department: 2138)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C711S114000

Reexamination Certificate

active

07114119

ABSTRACT:
Detecting data corruption includes receiving one or more blocks of data to be written to a storage device, selecting a portion of the data in the blocks (e.g., one or more bytes or data words), applying a rule to derive information characterizing the selected portion of data (e.g., calculating a checksum for the for the portions of data selected from the block to be written), and storing this information. After the data has been written to the storage device, the store information is used in deciding whether the data has been corrupted.

REFERENCES:
patent: 6687791 (2004-02-01), Morrison
patent: 6907466 (2005-06-01), Alexander et al.

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