Predictive tape drive error correction apparatus

Details Predictive tape drive error correction apparatus Predictive tape drive error correction apparatus

1991-02-25

1993-10-19

Atkinson, Charles E.

Excavating

371 401, G06F 1110

Patent

active

052552721

ABSTRACT:
The error correction apparatus of this invention maintains a set of pointers which are used to supplement the error correction characters written into the data tracks of the data frame. These pointers consist of indicators stored in a memory that note the location and nature of errors detected in the present data frame or in previous data frames read from the magnetic tape and stored in a buffer memory. The pointer information can be used by the error correction circuitry to determine which tracks typically produce the errors in the data frame. The error correction circuitry can then generate error patterns which can be combined with the data read and reread from the buffer to correct the errors contained therein.

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patent: 4870645 (1989-09-01), Herron
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