Method and apparatus for detecting and remediating in response to insufficient or excessive HAMR optical power
US9916849B1 · kind B1 · utility
32Cited by
11References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 9, 2016 |
| Grant date | Mar 13, 2018 |
| Priority date | — |
| Expiry date | Nov 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical power level applied via a laser when recording data to a track of a heat-assisted recording medium is determined. In response to the optical power level being too low or too high, remedial action is taken to prevent loss of data on one or more of the track and an adjacent track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.