公开(公告)号：US09236074B1

公开(公告)日：2016-01-12

申请号：US14605063

申请日：2015-01-26

Applicant: Seagate Technology LLC

Inventor： Michael R. Tiller ,  Barmeshwar Vikramaditya ,  Yongjun Hou

IPC: G11B21/02 ,  G11B5/60

CPC classification number: G11B5/6005 ,  G11B5/5552 ,  G11B5/59638 ,  G11B5/59672

Abstract: A system comprises a disk writer servo head and a controller. The disk writer servo head is configured to be positioned by a micro actuator. The disk writer servo head is also configured to substantially, continuously alternate between reading a first servo pattern and writing a second servo pattern until a disk is substantially, completely servo written. The first servo pattern establishes a first position of the disk writer servo head and the second servo pattern establishes a second position of the disk writer servo head. The controller is configured to control the operation of the disk writer servo head. The controller is also configured to compare the first and second positions to establish a position error. The micro actuator is configured to reposition the disk writer servo head in response to the position error prior to a next reading.

Abstract translation: 系统包括盘写入器伺服头和控制器。 盘写入器伺服头构造成由微致动器定位。 磁盘写入器伺服磁头还构造成在读取第一伺服模式和写入第二伺服模式之间基本上连续交替，直到磁盘被完全伺服写入。 第一伺服模式建立磁盘写入器伺服磁头的第一位置，第二伺服模式建立磁盘写入器伺服磁头的第二位置。 控制器配置为控制磁盘写入器伺服磁头的操作。 控制器还被配置为比较第一和第二位置以建立位置误差。 微致动器被配置为在下次读取之前响应于位置误差来重新定位盘写入器伺服头。