Mechanical data processing
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United States of America Patent
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Jun 5, 2007
Grant Date -
Apr 15, 2004
app pub date -
Jul 28, 2003
filing date -
Jan 31, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Described is a method for erasing data recorded in a data storage device in which a data bit is written onto a surface by applying a first combination of energy and force to the surface via a tip to form a pit in the surface representative of the data bit by local deformation of the surface. The method comprises applying a second combination of energy and force via the tip to prerecorded deformations of the surface to be erased to substantially level the surface.
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