Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output command process
Reexamination Certificate
2011-08-23
2011-08-23
Tsai, Henry (Department: 2184)
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output command process
C710S002000, C710S008000, C709S217000, C711S170000, C714S001000
Reexamination Certificate
active
08005996
ABSTRACT:
Embodiments provide unique and novel systems and methods for deleting data on removable disk drives. In embodiments, the removable disk drives store data that may be erased such that the data is considered destroyed but that allows the removable disk drive to be reused. The archiving system can determine which data should be erased. Then, the data is digitally shredded on sector boundaries of the removable disk drives such that the reclaimed memory cannot be read to decipher the erased data. In alternative embodiments, data is written across sector boundaries such that two or more files may occupy a single sector. A journal area, in embodiments, allows for copying the data in a sector with two or more files, digitally shredding the sectors in the removable disk drive, and rewriting the data that was not to be digitally shredded to the original location of the data.
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Bondurant Matthew D.
Payne Mark
Kilpatrick Townsend & Stockton LLP
Prostor Systems, Inc.
Sun Michael
Tsai Henry
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