Protecting information written to recording medium
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United States of America Patent
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Apr 29, 2014
Grant Date -
Oct 13, 2011
app pub date -
Apr 6, 2011
filing date -
Apr 7, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A method of protecting information written to a recording medium includes magnetizing the recording medium to form a first magnetic pattern corresponding to information to be stored, and magnetizing the recording medium to form a protective magnetic pattern having a phase difference of 180° from the first magnetic pattern at a position adjacent to where the first magnetic pattern is formed, with adjacent bits of the first magnetic pattern opposite and the protective magnetic pattern opposite to each other.
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