Data eraser and data erasing program
AssigneeYEC Co., Ltd.
InventorsTomoaki Hirakata, Masaru Igarashi, Hiroshi Takahashi
Life of this patent
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Abstract
A data eraser for erasing data recorded on a data recording medium, where data recorded on the recording medium can be erased in a short time period. Data produced in the CPU of the controller is stored in the memory as a random unit data; the unit data are repeatedly and continuously written in the memory to constitute record data for erasing purpose; the thus produced recording data for erasing are written on the hard disc to erase the data memorized in the hard disc. Since the time for producing random data, which normally takes time, is shortened, the time for proceeding as a whole can be shortened.
Claims9
A data eraser for erasing data recorded on a data recording medium comprising:
- a random data producing means for producing a predetermined unit amount of random data, a recording data producing means for producing data for erasing on the basis of said random unit data produced in said random data producing means, and a data recording means for recording the thus produced data for erasing on the recording medium.
A data erasing program for erasing data recorded on a data recording medium comprising a first step for producing a predetermined unit amount of random data;
- a second step for producing data for erasing by repeatedly collecting said random unit data;
- and a third step for recording the thus produced data for erasing on the recording medium.
Dependencies are inferred from the claim text.