Ammonite servo reference pattern writing for heat-assisted magnetic recording
US9093097B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2015 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Feb 6, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2005/0021
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Technologies are described herein for writing servo reference patterns in a storage device implementing heat-assisted magnetic recording. A recording signal for the servo reference patterns is generated through a read/write channel to a read/write head of the storage device. The read/write head is moved across a recording surface of a disk in the storage device as the disk is rotated and an intermittent signal is applied to a write gate interposed between the read/write channel and the read/write head so that a maximum continuous writing time of the recording signal does not exceed a continuous write time limit of the storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.