Temperature sensor in a thermally assisted magnetic recording head
US8451696B2 · kind B2 · utility
22Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2011 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Oct 31, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for providing a signal for driving a heating element in a TAR or HAMR enabled disk storage system that includes an optical transducer (or near-field optical source) for further focusing the beamspot of a laser onto a magnetic media, thereby heating the media. The storage system includes a temperature sensor proximate to the near-field transducer which provides a feedback loop to the laser driver to adjust the power of the laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.