Invention Grant
- Patent Title: Unequal zoning for track following on a hard disk drive
- Patent Title (中): 在硬盘驱动器上跟踪的不平等分区
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Application No.: US12429129Application Date: 2009-04-23
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Publication No.: US07881007B2Publication Date: 2011-02-01
- Inventor: Jr-Yi Shen , Zhi Wang
- Applicant: Jr-Yi Shen , Zhi Wang
- 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
- Main IPC: G11B5/596
- IPC: G11B5/596

Abstract:
Unequal zoning for track following on a hard disk drive comprising at least one magnetic disk, a read/write head connected to at least one actuator arm and capable of reading and writing data on said at least one magnetic disk, a controller capable of moving said at least one actuator arm. A track is followed using the read/write head on the surface of the at least one magnetic disk. Information is stored at the controller regarding off-track displacement of the read/write head. A plurality of unequal zone partitions is created, wherein an unequal zone partition of the plurality of unequal zone partitions represents a physical region of the at least one magnetic disk and wherein the plurality of unequal zone partitions are based on the information regarding the off-track displacement of the track and are used by the controller to compensate for the off-track displacement of the track.
Public/Granted literature
- US20100271731A1 UNEQUAL ZONING FOR TRACK FOLLOWING ON A HARD DISK DRIVE Public/Granted day:2010-10-28
Information query
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