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US 12,159,652 B2Granted
Energy-assisted magnetic recording data storage device with opportunistic boosted laser pre-biasing
OwnerGuoxiao Guo, William B. Boyleinventors
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Abstract
Various illustrative aspects are directed to a data storage device, comprising one or more disks; an actuator mechanism configured to position one or more heads proximate to a corresponding disk surface of the one or more disks; and one or more processing devices. The selected head comprises a write element and an assistive energy emitter. The one or more processing devices are configured to apply an assistive energy current to the assistive energy emitter while refraining from applying a write current to the write element.
Claims20
A data storage device, comprising:
- one or more disks;
- an actuator mechanism configured to position a selected head among one or more heads proximate to a corresponding disk surface among the one or more disks;
- and
- one or more processing devices,
- wherein the selected head comprises a write element comprising an inductive write coil and an assistive energy emitter, and
- wherein the one or more processing devices are configured to apply an assistive energy current to the assistive energy emitter while refraining from applying a write current to the inductive write coil in the write element.
3 more elements
A method comprising:
- applying, by one or more processing devices, an assistive energy current to an assistive energy emitter comprised in a selected head of a data storage device while applying a write current to an inductive write coil in a write element comprised in the selected head, and while the write element is positioned proximate to a data sector;
- powering down, by the one or more processing devices, the write current after finishing writing to the data sector;
- and
- applying, by the one or more processing devices, the assistive energy current to the assistive energy emitter while refraining from applying the write current to the inductive write coil in the write element.
1 more element
One or more processing devices comprising:
- means for applying an assistive energy current to an assistive energy emitter comprised in a selected head of a data storage device while applying a write current to an inductive write coil in a write element comprised in the selected head, and while the write element is positioned proximate to a data sector;
- means for powering down the write current after finishing writing to the data sector;
- and
- means for applying the assistive energy current to the assistive energy emitter while refraining from applying the write current to the inductive write coil in the write element.
1 more element
Dependencies are inferred from the claim text.