Information storage device

Details Information storage device Information storage device

2008-01-22

2008-01-22

Chase, Shelly (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

Reexamination Certificate

active

11064412

ABSTRACT:
A control unit transfers user data and an ECC that are read from a magnetic disk and stored in an FIFO to a data buffer. An erasure position movement control unit shifts an erasure start position from a predetermined initial value at predetermined intervals of erasure movement step, and an erasure position designating unit determines an erasure correcting position based upon the erasure start position and a predetermined erasure length. An ECC processing unit performs error correction by an ECC arithmetic processing in an erasure mode on the user data and the ECC in the data buffer.

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