公开(公告)号：US09741364B2

公开(公告)日：2017-08-22

申请号：US14806417

申请日：2015-07-22

Applicant: Seagate Technology LLC

Inventor： Tim Rausch ,  Minjie Ma ,  Kaizhong Gao ,  Edward Gage

IPC: G11B5/02 ,  G11B5/09 ,  G11B5/012 ,  G11B20/18 ,  G11B11/105 ,  G11B5/00 ,  G11B20/12 ,  G11B5/596 ,  G11B5/60

CPC classification number: G11B20/1889 ,  G11B5/012 ,  G11B5/09 ,  G11B5/59633 ,  G11B5/59638 ,  G11B5/6088 ,  G11B11/10506 ,  G11B11/10515 ,  G11B11/10521 ,  G11B11/10595 ,  G11B20/12 ,  G11B20/1217 ,  G11B20/1833 ,  G11B27/3027 ,  G11B2005/0021 ,  G11B2020/1222 ,  G11B2020/1232 ,  G11B2020/1238 ,  G11B2020/1292

Abstract: A storage device disclosed herein stores data on a storage media using interlaced magnetic recording (IMR) and it includes a storage controller configured to determine power levels applied to the power source such that power levels applied to heat various tracks can be different from each other. An implementation of the storage device determines the track density, linear densities and power levels for even and odd tracks in IMR HAMR for the storage media.

公开(公告)号：US09583135B1

公开(公告)日：2017-02-28

申请号：US15139516

申请日：2016-04-27

Applicant: Seagate Technology LLC

Inventor： Minjie Ma ,  Tim Rausch ,  Edward Charles Gage ,  Pu-Ling Lu

IPC: G11B11/00 ,  G11B20/18 ,  G11B5/00

CPC classification number: G11B20/1816 ,  G11B5/09 ,  G11B5/455 ,  G11B7/1267 ,  G11B20/10305 ,  G11B2005/0021

Abstract: An apparatus and method provide for performing, using a heat-assisted magnetic recording head, multiple sequential writes to a recording medium, and recording a metric of write performance for each of the writes. The apparatus and method further provide for calculating fluctuations in the metric, detecting whether the head has a laser mode hopping problem using the metric fluctuations, and categorizing a severity of the laser mode hopping problem.

Abstract translation: 一种装置和方法，用于使用热辅助磁记录头对记录介质执行多次顺序写入，并且记录每个写入的写入性能的度量。 该装置和方法还提供用于计算度量的波动，检测头是否具有使用度量波动的激光模式跳跃问题，以及对激光模式跳跃问题的严重性进行分类。

公开(公告)号：US09472212B2

公开(公告)日：2016-10-18

申请号：US14624089

申请日：2015-02-17

Applicant: Seagate Technology LLC

Inventor： Minjie Ma ,  Edward Charles Gage ,  Kaizhong Gao

IPC: G11B11/00 ,  G11B5/09 ,  G11B7/1263 ,  G11B20/12 ,  G11B5/00 ,  G11B11/105 ,  G11B7/126

CPC classification number: G11B7/1263 ,  G11B5/02 ,  G11B7/126 ,  G11B11/10515 ,  G11B11/10595 ,  G11B20/1217 ,  G11B2005/0021 ,  G11B2020/1232

Abstract: An apparatus comprises a controller configured to apply a writing configuration (WC) to a heat-assisted magnetic recording head to write data to a recording medium. The recording medium includes a plurality of sectors. The controller is further configured to determine an optimized WC for each of the plurality of sectors and initiate a write operation to one of the plurality of sectors. The write operation is configured to be performed by the head utilizing the optimized WC for the respective sector.

Abstract translation: 一种装置包括：控制器，被配置为将写入配置（WC）应用于热辅助磁记录头以将数据写入记录介质。 记录介质包括多个扇区。 所述控制器还被配置为为所述多个扇区中的每一个确定优化的WC，并且启动对所述多个扇区之一的写入操作。 写入操作被配置为由头部使用针对相应扇区的优化的WC执行。

公开(公告)号：US20160148636A1

公开(公告)日：2016-05-26

申请号：US14806358

申请日：2015-07-22

Applicant: Seagate Technology LLC

Inventor： Minjie Ma ,  Kaizhong Gao ,  Edward Gage ,  Tim Rausch

IPC: G11B7/1263 ,  G11B20/18 ,  G11B20/12 ,  G11B5/09

CPC classification number: G11B20/1889 ,  G11B5/012 ,  G11B5/09 ,  G11B5/59633 ,  G11B5/59638 ,  G11B5/6088 ,  G11B11/10506 ,  G11B11/10515 ,  G11B11/10521 ,  G11B11/10595 ,  G11B20/12 ,  G11B20/1217 ,  G11B20/1833 ,  G11B27/3027 ,  G11B2005/0021 ,  G11B2020/1222 ,  G11B2020/1232 ,  G11B2020/1238 ,  G11B2020/1292

Abstract: A storage device disclosed herein stores data on a storage media using interlaced magnetic recording (IMR) and it includes a storage controller configured to determine power levels applied to the power source such that power levels applied to heat various tracks can be different from each other. An implementation of the storage device determines the track density, linear densities and power levels for even and odd tracks in IMR HAMR for the storage media.

Abstract translation: 本文公开的存储装置使用隔行磁记录（IMR）将数据存储在存储介质上，并且其包括存储控制器，其被配置为确定施加到电源的功率电平，使得施加到加热各种轨道的功率电平可以彼此不同。 存储设备的实现确定用于存储介质的IMR HAMR中的偶数和奇数轨道的轨道密度，线密度和功率水平。