Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
【発明の名称】ロバストなトラック追従サーボコントローラを備えたディスクドライブ
Document Type and Number:
Japanese Patent JP2001512881
Kind Code:
A
Abstract:
A servo system in a disc drive (110) provides robust servo control during track following operations. The disc drive (110) includes a rotatable disc (112) having a disc surface (180, 182) with information arranged in tracks on the disc surface (180, 182). The disc drive (110) also includes a transducer (144) for accessing the information on the disc surface (180, 182). An actuator arm (126) is operably coupled to the transducer (144). An actuator (173) is operably coupled to the actuator arm (126) to move the transducer (144) relative to the disc surface (180, 182) to follow one of the tracks during track following. A model-based servo controller (190) is operably coupled to the actuator (173) to control movement of the actuator (173). The model-based servo controller (190) provides robust track following control over a desired frequency range.

Inventors:
Morris, John, Sea
Application Number:
JP2000506649A
Publication Date:
August 28, 2001
Filing Date:
May 15, 1998
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Seagate Technology, Incorporated
International Classes:
G05B5/01; G05B13/04; G05B21/02; G11B5/55; G11B5/596; G11B19/28; G11B21/10; (IPC1-7): G11B21/10; G11B5/596
Attorney, Agent or Firm:
Akira Asamura (3 outside)