| 发明名称 |
Data storage device characterizing geometry of magnetic transitions |
| 摘要 |
A data storage device is disclosed comprising a head and a disk comprising servo information and a reference pattern comprising a plurality of magnetic transitions. The servo information on the disk is processed to actuate the head over the disk, and a read signal is sampled from the head as the head moves across a width of the reference pattern at a substantially constant velocity to generate signal samples. The signal samples are processed to characterize a geometry of the magnetic transitions. |
| 申请公布号 |
US9361939(B1) |
申请公布日期 |
2016.06.07 |
| 申请号 |
US201414230452 |
申请日期 |
2014.03.31 |
| 申请人 |
Western Digital Technologies, Inc. |
发明人 |
Eaton Robert E. |
| 分类号 |
G11B5/02;G11B21/02 |
主分类号 |
G11B5/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A data storage device comprising:
a disk comprising servo information and a reference pattern comprising a plurality of magnetic transitions; a head; and control circuitry configured to:
process the servo information on the disk to actuate the head over the disk;sample a read signal from the head as the head moves across a width of the reference pattern at a substantially constant velocity to generate signal samples; andprocess the signal samples to characterize a two-dimensional geometry of the magnetic transitions. |
| 地址 |
Irvine CA US |
