| 发明名称 |
Hard Disk Drive Head-Disk Interface Dithering |
| 摘要 |
A procedure for accurately determining thermal flying height control (TFC) touchdown power associated with a head-disk interface (HDI) in a hard disk drive (HDD) involves dithering the spacing corresponding to the HDI by applying an oscillating signal. The touchdown power with the HDI dithering applied is determined and, based on that and the dithering amplitude, the touchdown power without dithering applied, as well as the back-off power, is determinable. |
| 申请公布号 |
US2016254016(A1) |
申请公布日期 |
2016.09.01 |
| 申请号 |
US201514633126 |
申请日期 |
2015.02.26 |
| 申请人 |
HGST Netherlands B.V. |
发明人 |
Canchi Sripathi V.;Rajauria Sukumar;Reiner James W.;Schreck Erhard |
| 分类号 |
G11B5/60 |
主分类号 |
G11B5/60 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for determining touchdown power associated with a head-disk interface (HDI) in a hard disk drive (HDD), the method comprising:
dithering the spacing corresponding to said HDI by applying an oscillating signal; determining touchdown power with HDI dithering applied; based on said touchdown power with HDI dithering applied, determining touchdown power without HDI dithering applied; and storing, within said HDD, a characterization of said touchdown power without dithering applied. |
| 地址 |
Amsterdam NL |
