ALTERNATIVE METHOD OF DEFECTIVE SECTOR, INFORMATION RESTORING METHOD, AND EXTERNAL STORAGE DEVICE

PROBLEM TO BE SOLVED: To speed up an access to a sector. SOLUTION: When a defective sector occurs to a non-volatile semiconductor disk device equipped with many sectors, address information of an alternative sector of the defective sector is stored in a sector of the last address befor the defective...

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Bibliographic Details
Main Author MIYATA MANABU
Format Patent
LanguageEnglish
Published 14.04.2005
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To speed up an access to a sector. SOLUTION: When a defective sector occurs to a non-volatile semiconductor disk device equipped with many sectors, address information of an alternative sector of the defective sector is stored in a sector of the last address befor the defective sector. Then, when the address information of the alternative sector appears in addressing sectors consecutively, the alternative sector specified by the address information of the alternative sector is accessed instead of the next address. COPYRIGHT: (C)2005,JPO&NCIPI
Bibliography:Application Number: JP20040373839