Invention Grant
- Patent Title: Head position demodulation method and magnetic disk device
- Patent Title (中): 磁头位置解调方法和磁盘装置
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Application No.: US14194482Application Date: 2014-02-28
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Publication No.: US09177581B2Publication Date: 2015-11-03
- Inventor: Tomoyoshi Yamada
- Applicant: KABUSHIKI KAISHA TOSHIBA
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: G11B20/06
- IPC: G11B20/06 ; G11B21/02 ; G11B5/58 ; G11B5/596 ; G11B5/48
Abstract:
According to one embodiment, at demodulation of an A-phase burst pattern and a B-phase burst pattern arranged in a down-track direction so as to be different from each other in phase in a cross-track direction, the demodulated position of a magnetic head is calculated based on a sin component and a cos component in the A-phase burst pattern and a sin component and a cos component in the B-phase burst pattern.
Public/Granted literature
- US20150146318A1 HEAD POSITION DEMODULATION METHOD AND MAGNETIC DISK DEVICE Public/Granted day:2015-05-28
Information query
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