Invention Grant
- Patent Title: Seek trajectory generation using adaptive filtering
- Patent Title (中): 使用自适应滤波寻找轨迹生成
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Application No.: US11000680Application Date: 2004-11-30
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Publication No.: US07206162B2Publication Date: 2007-04-17
- Inventor: Tetsuo Semba , Matthew White , Hiroshi Uchida
- Applicant: Tetsuo Semba , Matthew White , Hiroshi Uchida
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Townsend and Townsend and Crew LLP
- Main IPC: G11B5/596
- IPC: G11B5/596 ; G11B5/58 ; G11B5/55

Abstract:
Embodiments of the present invention provide a method and a system for generating optimal feedforward signal for the seek control to suppress the RTV (Random Transient Vibrations) and the seek acoustic noise. One aspect is directed to a method of providing a revised feedforward signal using an adaptive filter in a feedforward control system for controlling an actuator to move a head to seek a track and settle on the track of a disk in a disk drive apparatus. The method comprises performing a seek operation of the head using an initial feedforward signal; obtaining an error signal at settling after performing the seek operation; determining filter characteristics of the adaptive filter to minimize the error signal; and implementing the adaptive filter having the determined filter characteristics in the feedforward control system to produce a revised feedforward signal for controlling the actuator for moving the head in the disk drive apparatus.
Public/Granted literature
- US20060114601A1 Seek trajectory generation using adaptive filtering Public/Granted day:2006-06-01
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