TRACK-BAND SQUEEZED-SECTOR ERROR CORRECTION IN MAGNETIC DATA STORAGE DEVICES

TRACK-BAND SQUEEZED-SECTOR ERROR CORRECTION IN MAGNETIC DATA STORAGE DEVICES

Data storage devices using a two-level ECC scheme are described. Embodiments of the invention allow the recovery of sectors in a squeezed group of tracks in a that includes both a single track level ECC scheme and a track band ECC scheme that functions across the set of tracks in the band. The track...

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Bibliographische Detailangaben
Hauptverfasser: HASSNER MARTIN AURELIANO, HWANG KIRK, CHATRADHI SRIDHAR, YAMAMOTO SATOSHI
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:Data storage devices using a two-level ECC scheme are described. Embodiments of the invention allow the recovery of sectors in a squeezed group of tracks in a that includes both a single track level ECC scheme and a track band ECC scheme that functions across the set of tracks in the band. The track band ECC scheme uses additional parity information calculated using input data from multiple tracks to allow correction across tracks.