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US 2010/0142083 A1Published application
Magnetic recording medium and magnetic storage device
AssigneeToshiba Storage Device Corporation
InventorKoichi Aikawa
Life of this patent
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Abstract
According to one embodiment, a magnetic recording medium includes a substrate and a single domain magnetic dot. The single domain magnetic dot is provided on the substrate and is written with a compensation signal for controlling the position of at least one of a recording device and a reproducing device. The single domain magnetic dot has a length in the radial direction of the substrate shorter than a length in the circumferential direction of the substrate.
Claims5
A magnetic recording medium comprising:
- a substrate;
- and
- first single domain magnetic dots on the substrate, the first single domain magnetic dots configured to be written with a compensation signal for controlling position of at least one of a recording device and a reproducing device, wherein
- the first single domain magnetic dots comprise a length in a radial direction of the substrate shorter than a length in a circumferential direction of the substrate.
1 more element
A magnetic storage device comprising:
- a driver configured to drive a magnetic recording medium comprising a substrate and a single domain magnetic dot on the substrate and to rotate the magnetic recording medium, the single domain magnetic dot configured to be written with a compensation signal for controlling position of at least one of a recording device and a reproducing device, the single domain magnetic dot comprising a length in a radial direction of the substrate shorter than a length in a circumferential direction of the substrate;
- a magnetic head comprising the reproducing device configured to reproduce data from the magnetic recording medium;
- a head actuator configured to move the magnetic head in a radial direction of the magnetic recording medium;
- and
- a controller configured to adjust position of the magnetic head by reading the compensation signal written to the single domain magnetic dot of the magnetic recording medium by the reproducing device.
2 more elements
Dependencies are inferred from the claim text.