Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2005-04-05
2005-04-05
Chung, Phung My (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S799000, C714S800000, C360S053000
Reexamination Certificate
active
06877127
ABSTRACT:
Data from a host computer is buffered, transferred to a logical formatter, compressed and converted to a format suitable for storage on a magnetic tape before being arranged and written sequentially into a main buffer where parity bytes are added as each row of a dataset is written. A physical formatter takes the data sequentially from the main buffer and writes them as codeword quadsets in plural tape tracks. A determination of whether each codeword quadset is acceptably recorded is made by evaluating each codeword quadset for header and codeword quadset pair errors and combining the evaluations.
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“New 8 mm Is Ideal for Automated Storage,” J. Gast,Computer Technology ReviewMar. 11, 1991 No. 3, pp. 26, 28-29.
Buckingham Jonathan Peter
Sved Jorge Antonio
Chung Phung My
Hewlett--Packard Development Company, L.P.
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