Invention Grant
- Patent Title: Magnetic head control capable of avoidance media bumps during seeking process
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Application No.: US15919783Application Date: 2018-03-13
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Publication No.: US10431247B2Publication Date: 2019-10-01
- Inventor: Tetsuo Kuribayashi , Hironori Kanno , Masami Tashiro
- Applicant: Kabushiki Kaisha Toshiba , Toshiba Electronic Devices & Storage Corporation
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba,Toshiba Electronic Devices & Storage Corporation
- Current Assignee: Kabushiki Kaisha Toshiba,Toshiba Electronic Devices & Storage Corporation
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: White & Case LLP
- Priority: JP2017-179026 20170919
- Main IPC: G11B5/60
- IPC: G11B5/60 ; G11B5/012 ; G11B5/55

Abstract:
According to one embodiment, a magnetic disk drive selects in command evaluation in reordering processing, a command accessible in a shortest time. The device determines whether media bumps which influence a dynamic flying height (DFH) control exist in a seek section between completion of a previous command and start of a selected command or not, calculates a latency necessary for avoidance of the media bumps if it is determined by the determination that the media bumps which influence the DFH control exist, and selects the command accessible in the shortest time including the time obtained by summing the latency calculated by the calculation as the command to be next processed.
Public/Granted literature
- US20190088277A1 MAGNETIC DISK DRIVE AND MAGNETIC HEAD CONTROL METHOD Public/Granted day:2019-03-21
Information query
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