06888694 is referenced by 35 patents and cites 28 patents.

The present invention relates to controlling an actuator for positioning a read/write head in storage devices such as disk drives. More specifically, the invention relates to using a sensor to detect the disk vibration amplitude perpendicular to the disk surface, and using feed forward control to cancel or counteract the tendency of the read/write head to deviate off-track due to disk vibration. Various approaches are proposed to detect the disk vertical vibration.

Title
Active control system and method for reducing disk fluttering induced track misregistrations
Application Number
10/162507
Publication Number
6888694 (B2)
Application Date
June 4, 2002
Publication Date
May 3, 2005
Inventor
Eng Hong Ong
Singapore
SG
Zhimin He
Singapore
SG
Jingliang Zhang
Singapore
SG
Guoxiao Guo
Singapore
SG
Agent
Renner Otto Boisselle & Sklar
Assignee
Agency for Science Technology and Research
SG
IPC
G11B 005/596
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