Invention Grant
US09280993B2 Implementing asymmetric degauss control for write head for hard disk drives
有权
实现用于硬盘驱动器的写头的非对称消磁控制
- Patent Title: Implementing asymmetric degauss control for write head for hard disk drives
- Patent Title (中): 实现用于硬盘驱动器的写头的非对称消磁控制
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Application No.: US14104143Application Date: 2013-12-12
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Publication No.: US09280993B2Publication Date: 2016-03-08
- Inventor: John Contreras , Zhen Jin , Yuanpeng Li , Xiaoyu Sui
- Applicant: HGST Netherlands B.V.
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agent Joan Pennington
- Main IPC: G11B5/465
- IPC: G11B5/465
Abstract:
A method, apparatus, and system for implementing enhanced asymmetric degauss control for a write head for hard disk drives. A degauss period is provided at the end of a write. The write head is driven asymmetrically with respect to the positive and negative driving currents during the degauss period. The average value of the write current during the degauss period is non-zero.
Public/Granted literature
- US20150170687A1 IMPLEMENTING ASYMMETRIC DEGAUSS CONTROL FOR WRITE HEAD FOR HARD DISK DRIVES Public/Granted day:2015-06-18
Information query
IPC分类:
