Title:
遷移間距離を固定したタイミング・ベース・サーボ制御
Document Type and Number:
Japanese Patent JP4542782
Kind Code:
B2
Abstract:
A servo writer generates a linear servo track timing based servo pattern comprised of transitions that extend laterally of the track. At least three spaced apart write elements, two of parallel azimuthal orientation, and at least one of a different azimuthal orientation, write patterns corresponding to the write elements, fixing both the distance between transitions having different azimuthal orientation, the "A" distance, and the distance between transitions having parallel azimuthal orientation, the "B" distance. The fixed distances provide precise sensing of lateral position based on a measure of time over the "A" distance compared to time over the "B" distance.
Inventors:
Eaton, James, Howard
Imino, Wayne, Isami
Bread, Zhong Shii
Imino, Wayne, Isami
Bread, Zhong Shii
Application Number:
JP2003568648A
Publication Date:
September 15, 2010
Filing Date:
February 03, 2003
Export Citation:
Assignee:
INTERNATIONAL BUSINESS MASCHINES CORPORATION
International Classes:
G11B5/584; G11B5/265
Domestic Patent References:
| JP2000260014A | ||||
| JP11296831A | ||||
| JP8030942A | ||||
| JP2000285427A |
Attorney, Agent or Firm:
Takeshi Ueno
Tasaichi Tanae
Yoshihiro City
Hiroshi Sakaguchi
Tasaichi Tanae
Yoshihiro City
Hiroshi Sakaguchi