发明名称 |
Method and apparatus for determining track identity from abbreviated track identifying data in a disk drive data storage device |
摘要 |
A disk for a disk drive data storage device contains embedded track identifying fields which identify a track within a range of tracks, the range being less than the full range of tracks on the disk surface. The full identity of a track during a track seek operation is determined by iteratively assuming a track identity and estimating acceleration of the transducer based on the assumed track identity, until a track identity is found for which estimated acceleration meets some pre-determined threshold. Preferably, embedded servo fields are recorded at angularly spaced intervals on the disk surface, and every Nth servo field contains a Gray code full track identifier, while all servo fields in between contain abbreviated Gray code fields which identify a track within a range of tracks.
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申请公布号 |
US2003035239(A1) |
申请公布日期 |
2003.02.20 |
申请号 |
US20010930596 |
申请日期 |
2001.08.15 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
OTTESEN HAL HJALMAR;SMITH GORDON JAMES |
分类号 |
G11B21/08;G11B5/596;G11B21/10;(IPC1-7):G11B5/596;G11B5/09 |
主分类号 |
G11B21/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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