Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data verification
Patent
1997-03-31
1999-11-30
Kim, W. Chris
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data verification
360 48, G11B 509
Patent
active
059953080
ABSTRACT:
A disk resident system for managing defective data sector information in a defective data sector map in a headerless format magnetic disk device. The defective data sector map is stored in gaps between fields in the headerless disk format itself or in existing disk administration fields. The defective data sector map includes a plurality of binary digits that individually correspond to a defective or non-defective status of an individual data sector on at least one section of at least one track proximate to the defective data sector map. The defective data sector map can be minimized by compressing repetitive 0's or 1's in the map. ECC coding and/or other redundancy checks can be included to ensure validity of the defective data sector map.
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Adams Thomas G.
Assouad Nicolas C.
Wilson Aaron Wade
Davidson Dan I.
Galanthay Theodore E.
Jorgenson Lisa K.
Kim W. Chris
Kubida William J.
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