Reconstructive error recovery procedure (ERP) using reserved buffer
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United States of America Patent
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Jun 9, 2015
Grant Date -
May 15, 2014
app pub date -
Nov 14, 2012
filing date -
Nov 14, 2012
priority date (Note) -
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Abstract
According to one embodiment, a method for reading data from a medium includes reading a data set from a medium repeatedly using different settings until either: a reconstructed data set is sent to a host and/or stored, or a maximum number of rereads has been reached, after each reading of the data set, storing each row to the reserved data buffer that has no errors or errors in the row are correctable using C1-Error Correction Code (ECC) unless a matching row already exists in the reserved data buffer that has fewer corrected errors therein, assembling the data set from the rows stored in the reserved data buffer to form an assembled data set, correcting any remaining errors in the assembled data set using C2-ECC to form the reconstructed data set, and sending the reconstructed data set to the host and/or storing the reconstructed data set.
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