Method and apparatus for recording with a magneto-optical recording medium applying one period of an alternating magnetic field to a unit domain length
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United States of America Patent
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Dec 31, 2002
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N/A
app pub date -
Jan 21, 1999
filing date -
Jan 23, 1998
priority date (Note) -
Expired
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Abstract
A magneto-optical recording medium includes a recording layer and a reproducing layer respectively formed by magnetic layers on a substrate. A record magnetic domain is formed within the recording layer by using a magnetic head, which is transferred into a reproducing layer by irradiating a laser beam upon reproduction. The physical length in recording a unit bit is taken as a unit domain length. Where the unit domain length is 1T and '1' is recorded in 1T, '1' is recorded in a former half 1T/2 and '0' is in a latter half 1T/2 by applying one period of an alternating magnetic field to the unit domain length.
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