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US 6,628,598 B2Granted
Patterned media system
AssigneeImation Corp.
InventorsJathan D. Edwards, Garry R. Lundstrom, Paul R. Iverson, Joseph H. Sexton
Life of this patent
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Abstract
A system for reading data from recording media having topographical features readable with a slider-mounted non-magnetic transducer sensitive primarily to changes in local aerodynamic boundary conditions.
Claims27
A data recording medium comprising:
- a substrate having topographical features readable with a slider-mourned non-magnetic transducer sensitive primarily to changes in local aerodynamic boundary conditions;
- and
- a hard coat layer or stack substantially conforming to the topographical features, wherein the hard coat layer or stack bar has a thickness of 5 to 700 nm.
In combination, a data recording medium comprising a substrate having topographical features and a hard coat layer or stack substantially conforming to the topographical features, wherein the hard coat layer or stack has a thickness of 5 to 700 nm;
- and a slider-mounted non-magnetic transducer sensitive primarily to changes to local aerodynamic boundary conditions.
A data playback system, comprising:
- a recording medium comprising a substrate having topographical features, and a hard coat layer or stack substantially conforming to the topographical features, wherein the hard coat layer or stack has a thickness of 5 to 700 nm;
- a slider-mounted non-magnetic transducer sensitive primarily to changes In local aerodynamic boundary conditions;
- and
- an apparatus adapted to process signals produced by the transducer reading data from the topographical features.
1 more element
A process of recording data, comprising:
- purposefully creating in a medium topographical features readable with a slider-mounted non-magnetic transducer sensitive primarily to changes in local aerodynamic boundary condition;
- and
- forming a hard coat layer or stack to substantially conform to the topographical features, wherein the hard coat layer or stack has a thickness of 5 to 700 nm.
Dependencies are inferred from the claim text.