Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data verification
Reexamination Certificate
2009-03-10
2010-12-28
Sniezek, Andrew L (Department: 2627)
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data verification
C360S031000, C360S077020
Reexamination Certificate
active
07859784
ABSTRACT:
A data storage device, that stores write data by a head, rewrites data on an adjacent track at a timing which is different from write retry of detecting a head off track when data may be written to an adjacent track. When an off track error, which affects data on an adjacent track, is generated by a write command, rewrite processing of this write command is not executed immediately, but a rewrite request including information on the track to be rewritten and the shift amount of the off track is held. And the rewrite request being held is executed at a timing which is different from the write retry. So rewrite processing can be executed after vibration, which caused the off track, stops, and the generation of an off track error during rewrite processing and the generation of further off track writing can be prevented.
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patent: 6781780 (2004-08-01), Codilian
patent: 7215497 (2007-05-01), Urata
patent: B2 3037250 (2000-02-01), None
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patent: B2 3942483 (2007-04-01), None
Greer Burns & Crain Ltd.
Sniezek Andrew L
Toshiba Storage Device Corporation
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