DATA OVERWRITING IN PROBE BASE DATA STORAGE DEVICE

    公开(公告)号:JP2004005969A

    公开(公告)日:2004-01-08

    申请号:JP2003133291

    申请日:2003-05-12

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a method for overwriting data in a probe base data storage device wherein the data are represented by the existence/absence of a pit formed on a storage surface by a device probe. SOLUTION: Input data are encoded such that continuous bits of first values in coded input data are divided by at least one bit of another value. Overwritten data bits v 0 , v 1 , ... are generated from the coded input data b 0 , b 1 , ... used to overwrite data on the storage surface 4. The overwritten data bits are formula 1 with respect to i ≥1 when a pit represents the first value in the data storage device, and are generated such that v 0 has the first value. The overwritten data bits are v 1 = b i-1 with respect to i ≥1 and are generated such that v 0 has another value. COPYRIGHT: (C)2004,JPO

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