SCALABLE REPAIR BLOCK ERROR CORRECTION FOR SEQUENTIAL MULTIPLE DATA BLOCKS IN A MAGNETIC DATA STORAGE DEVICE

A technique for recovering of "squeezed" sectors in a set of sequential sectors such as are used in Shingled Magnetic Recording (SMR) is described. Embodiments of the invention use a programmable erased sector recovery scheme, which is a concatenation of a "Cauchy-type" track era...

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Bibliographische Detailangaben
Hauptverfasser:	AKIYAMA KEI, COKER JONATHAN DARREL, HASSNER MARTIN AURELIANO, HWANG KIRK, WOOD ROGER WILLIAM, CHATRADHI SRIDHAR
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY CODE CONVERSION IN GENERAL CODING DECODING ELECTRICITY
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Beschreibung
Zusammenfassung:	A technique for recovering of "squeezed" sectors in a set of sequential sectors such as are used in Shingled Magnetic Recording (SMR) is described. Embodiments of the invention use a programmable erased sector recovery scheme, which is a concatenation of a "Cauchy-type" track erasure correction code, together with a media-error correction code that generates N-weighted parity-sectors per track and is capable of replacing up to N-erased sectors per track in any possible combination.