Data storage device with mapping and mitigation of laser mode hop effects in heat-assisted magnetic recording (HAMR)
US12154606B2 · kind B2 · utility
0Cited by
6References
19Claims
0Family size
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Key dates
| Filing date | Aug 9, 2023 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Aug 9, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Various illustrative aspects are directed to 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. The one or more processing devices are configured to generate a map of laser mode hop effects across the corresponding disk surface, for the selected head. The one or more processing devices are further configured to apply a laser mode hop mitigation in operating the selected head, based on the map of laser mode hop effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.