发明授权
US06765744B2 Track pitch control using head offset measurement for self-servowriting tracks in a disc drive
有权
使用光盘驱动器中自伺服轨迹的磁头偏移测量来跟踪音高控制
- 专利标题: Track pitch control using head offset measurement for self-servowriting tracks in a disc drive
- 专利标题(中): 使用光盘驱动器中自伺服轨迹的磁头偏移测量来跟踪音高控制
-
申请号: US10028636申请日: 2001-12-19
-
公开(公告)号: US06765744B2公开(公告)日: 2004-07-20
- 发明人: Kevin Arthur Gomez , Qiang Bi , Aik Chuan Lim , Jimmy Tze Ming Pang
- 申请人: Kevin Arthur Gomez , Qiang Bi , Aik Chuan Lim , Jimmy Tze Ming Pang
- 主分类号: G11B2102
- IPC分类号: G11B2102
摘要:
A method of, apparatus for, and means for controlling pitch of a servowritten track on a disc in a disc drive are disclosed. The disc drive has a head for traversing over a surface of the disc. The head has a read element and a write element separated by a head element offset &Dgr;. A servowriting controller operably connected to the disc drive creates a track k by writing servo information on the disc. The servowriting controller then calculates the head element offset &Dgr; at the track k, [&Dgr;CALC(k)] and determines a skew angle &thgr; at the track k, [&thgr;(k)]. The servowriting controller adjusts a track pitch correction factor based on the &Dgr;CALC(K) and the &thgr;(k) such that the track pitch correction factor is utilized to servowrite a next track.
公开/授权文献
信息查询