| Document
Code: PH A |
| [21] Application Number: | 1-2004-000401 |
| [54] Title: | METHOD AND APPARATUS FOR DETERMINING TRACK PITCH FOR WRITING SERVO INFORMATION IN A DISK DRIVE |
| [72] Inventor(s): |
HIDEO SADO, OF , TOKYO, JAPAN |
| [73] Assignee(s): |
KABUSHIKI KAISHA TOSHIBA , OF TOKYO, JAPAN |
| [74] Attorney/Agent: | SAPALO & VELEZ |
| [22] Date Filed: | 9/15/2004 |
| [30] | Priority Data: | ||||||||
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| [51] International Class7: | G11B 21/2; G11B 21/10; G11B 5/596 |
| [57] Abstract: |
| A disk drive including a self-servo writing apparatus is disclosed. The self-servo writing apparatus calculates a pitch of servo tracks constituted on a disk medium by a calculation method using a positional error calculation value based on a reproduction amplitude value of a servo burst pattern signal reproduced by a head. |
Representative Drawing(s):
| Search Report |
| [58] Field of Search: | G11B 21/2; G11B 21/10; G11B 5/596 |
| [56] Documents Considered to be Relevant |
| Category | Citation of Document |
| A | US PAT. NO. 6,151,187 (YOSHINORI OGAWA) NOVEMBER 2000 (THE WHOLE DOCUMENT) |
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