Magnetic information media storage with optical servo tracks
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United States of America Patent
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Oct 2, 1990
Grant Date -
N/A
app pub date -
Jun 3, 1988
filing date -
Jun 3, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A magnetic information storage medium, such as a floppy or rigid magnetic disk having a plurality of indelible grooves inscribed on a surface of the medium to function as optical servo tracks. The grooves can be in the form of a plurality of continuous or noncontinuous concentric circles. The grooves can also be a continuous spiral or a plurality of continuous concentric circles having non-constant widths and/or depths.
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