Data storage device generating extended redundancy to compensate for track squeeze
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United States of America Patent
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Jan 30, 2018
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N/A
app pub date -
May 15, 2017
filing date -
May 15, 2017
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Abstract
A data storage device is disclosed comprising a head actuated over a disk comprising a plurality of tracks. A first codeword is generated comprising first redundancy, and first position information of the head relative to a first track is saved while writing the first codeword to the first track. A second codeword is generated comprising second redundancy, and second position information of the head relative to a second track is saved while writing the second codeword to the second track. Extended redundancy is generated for the first codeword based on the first and second position information, and the first codeword is recovered from the first track based on the extended redundancy generated for the first codeword.
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