公开(公告)号：US09280993B2

公开(公告)日：2016-03-08

申请号：US14104143

申请日：2013-12-12

Applicant: HGST Netherlands B.V.

Inventor： John Contreras ,  Zhen Jin ,  Yuanpeng Li ,  Xiaoyu Sui

IPC: G11B5/465

CPC classification number: 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.

Abstract translation: 一种用于为硬盘驱动器的写头实现增强的不对称消磁控制的方法，装置和系统。 在写入结束时提供消磁周期。 写磁头相对于消磁期间的正和负驱动电流是非对称驱动的。 消磁期间写入电流的平均值为非零。

公开(公告)号：US20150170687A1

公开(公告)日：2015-06-18

申请号：US14104143

申请日：2013-12-12

Applicant: HGST Netherlands B.V.

Inventor： John Contreras ,  Zhen Jin ,  Yuanpeng Li ,  Xiaoyu Sui

IPC: G11B5/465

CPC classification number: 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.

Abstract translation: 一种用于为硬盘驱动器的写头实现增强的不对称消磁控制的方法，装置和系统。 在写入结束时提供消磁周期。 写磁头相对于消磁期间的正和负驱动电流是非对称驱动的。 消磁期间写入电流的平均值为非零。