Invention Grant
- Patent Title: Adaptive track shape control during self servo-write
- Patent Title (中): 自伺服写入时的自适应轨迹形状控制
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Application No.: US12212841Application Date: 2008-09-18
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Publication No.: US07881004B2Publication Date: 2011-02-01
- Inventor: Kishan K. Kumbla , Steven Smith
- Applicant: Kishan K. Kumbla , Steven Smith
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies, Netherlands, B.V.
- Current Assignee: Hitachi Global Storage Technologies, Netherlands, B.V.
- Current Assignee Address: NL Amsterdam
- Main IPC: G11B21/02
- IPC: G11B21/02

Abstract:
In a method for implementing track shape control during a self servo-write process, an error in a targeted path for writing servo data onto a first track of a disk is detected. The error is correlated with a second error for a targeted path in a previously written track of the disk. A correction is generated for a feed-forward signal used to position a writing element which is used to write servo data for a subsequent track of the disk.
Public/Granted literature
- US20100067134A1 ADAPTIVE TRACK SHAPE CONTROL DURING SELF SERVO-WRITE Public/Granted day:2010-03-18
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