Invention Grant
- Patent Title: Magnetic disk device and actuator control method
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Application No.: US16541885Application Date: 2019-08-15
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Publication No.: US10734022B2Publication Date: 2020-08-04
- Inventor: Daisuke Sudo
- 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: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1574a42e
- Main IPC: G11B5/09
- IPC: G11B5/09 ; G11B5/55 ; G11B5/596

Abstract:
According to one embodiment, a magnetic disk device includes a disk, a first head, a second head, an actuator configured to position the first head and the second head over the disk, and a controller configured to control the actuator based on a first value having a first waveform suppressing a disturbance component, wherein the controller is configured to invert, in the first waveform, a polarity of a third waveform succeeding a first timing with respect to a polarity of a second waveform preceding the first timing in a case where the first head is changed to the second head at the first timing.
Public/Granted literature
- US20190371359A1 MAGNETIC DISK DEVICE AND ACTUATOR CONTROL METHOD Public/Granted day:2019-12-05
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