公开(公告)号：US20180046382A1

公开(公告)日：2018-02-15

申请号：US15233703

申请日：2016-08-10

Applicant: Seagate Technology LLC

Inventor： Xiong Liu ,  Feng Shen ,  WenXiang Xie ,  WeiQing Zhou

IPC: G06F3/06 ,  G11B20/12 ,  G06F12/02

CPC classification number: G06F3/0611 ,  G06F3/0646 ,  G06F3/0653 ,  G06F3/0676 ,  G06F12/0866 ,  G06F2212/1024 ,  G06F2212/21 ,  G11B20/1217 ,  G11B2020/1238 ,  G11B2020/1242 ,  G11B2020/1292

Abstract: A method includes storing a data group in a first zone of a plurality of radial zones of a data storage disc. Each different one of the plurality of zones has a different throughput level. The method further includes obtaining information related to an access frequency of the data group stored in the first zone of the plurality of zones. Based on the information related to the access frequency of the data group and the different throughput levels of the different zones, a determination is made as to whether to migrate the data group from the first zone of the plurality of zones to a second zone of the plurality of zones.

公开(公告)号：US20170092311A1

公开(公告)日：2017-03-30

申请号：US15373891

申请日：2016-12-09

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： JIAN QIANG ,  Xiong Liu

IPC: G11B5/56 ,  G11B20/12

CPC classification number: G11B5/56 ,  G11B5/012 ,  G11B5/5526 ,  G11B20/10009 ,  G11B20/1217 ,  G11B2020/1238 ,  G11B2020/1292

Abstract: Methods, systems, and apparatuses are described for provisioning storage devices. An example method includes determining a write status of an adjacent track that is adjacent to a target track of a shingled magnetic recording (SMR) disk drive. The method may further include determining an offset for a write head based on the write status of the adjacent track and positioning the write head according to the offset.

公开(公告)号：US09536563B1

公开(公告)日：2017-01-03

申请号：US15044302

申请日：2016-02-16

Applicant: Seagate Technology LLC

Inventor： Xiong Liu ,  WeiQing Zhou ,  Quan Li ,  WenXiang Xie

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

CPC classification number: G11B20/1879 ,  G11B20/10009

Abstract: Systems and methods are disclosed for detecting shingled overwrite errors. When a read error is encountered when reading from shingled recording tracks, a processor may determine whether the read error is an error caused by shingled overwriting. The processor may determine whether the read error is caused by shingled overwriting by determining read signal quality of one or more sectors preceding the read error, such as based on a bit error count or bit error ratio (BER), and comparing the read signal quality to a threshold value. The processor may determine that the read error is caused by shingled overwriting when the read signal quality value is lower than the threshold.

Abstract translation: 公开了用于检测带状覆盖错误的系统和方法。 当读取带有空白的记录轨道时出现读取错误时，处理器可以确定读取错误是否是由遮盖重写引起的错误。 处理器可以通过例如基于比特错误计数或比特误码率（BER）来确定读取错误是由通过确定读取错误之前的一个或多个扇区的读取信号质量的带状重写引起的，以及比较读取信号质量 达到阈值。 当读取信号质量值低于阈值时，处理器可以确定读取错误是由带状重写引起的。

公开(公告)号：US09495988B1

公开(公告)日：2016-11-15

申请号：US14850560

申请日：2015-09-10

Applicant: Seagate Technology LLC

Inventor： Xiong Liu ,  Qiang Bi ,  Choon Kiat Lim ,  MingZhong Ding

IPC: G11B27/36 ,  G11B5/596 ,  G11B5/012 ,  G11B5/09

CPC classification number: G11B5/59627 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10009 ,  G11B20/1217

Abstract: Systems, apparatuses, and processes having a dependent write fault threshold are disclosed. A first sector may have a first write fault threshold and a second sector, adjacent to the first sector, may have a second write fault threshold, and the write fault thresholds can be variable based on a position error signal value of an adjacent sector. In some embodiments, the adjacent sectors may each be in an adjacent track. In other embodiments, the adjacent sectors may be in the same track. Further, a track may have two write fault thresholds, a positive direction threshold and a negative direction threshold; in some embodiments, only one direction's threshold may be variable based on the position error signal of the adjacent sector, while the opposite direction's threshold may be set to a default (e.g. pre-determined not on a sector by sector basis) value.

Abstract translation: 公开了具有从属写入故障阈值的系统，设备和过程。 第一扇区可以具有第一写入故障阈值，并且与第一扇区相邻的第二扇区可以具有第二写入故障阈值，并且写入故障阈值可以基于相邻扇区的位置误差信号值而变化。 在一些实施例中，相邻扇区可以各自在相邻的轨道中。 在其他实施例中，相邻扇区可以在相同的轨道中。 此外，轨道可以具有两个写故障阈值，正方向阈值和负方向阈值; 在一些实施例中，只有一个方向的阈值可以基于相邻扇区的位置误差信号而变化，而相反方向的阈值可以被设置为默认值（例如，不是逐扇区预先确定的）。

公开(公告)号：US09460750B1

公开(公告)日：2016-10-04

申请号：US14865113

申请日：2015-09-25

Applicant: Seagate Technology LLC

Inventor： Xiong Liu ,  Myint Ngwe ,  Choon Wei Ng ,  Jian Qiang ,  Quan Li

IPC: G11B27/36 ,  G11B5/09 ,  G11B20/12 ,  G11B5/02

CPC classification number: G11B20/1217 ,  G11B5/02 ,  G11B5/59627 ,  G11B2020/1232

Abstract: A data sector is read using two or more passes of a read head over a recording medium. Each of the passes corresponds to a different cross-track offset, each of the data sectors being divided into two or more blocks. For each of the blocks, data is selected from one of the passes that read the block with a higher quality than other passes that read the block. The selected data from each of the blocks to is combined to form recovered data of the data sector.

Abstract translation: 使用读取头在记录介质上的两次或多次通过来读取数据扇区。 每个通道对应于不同的交叉磁道偏移，每个数据扇区被分成两个或更多个块。 对于每个块，从读取块的其中一个通过中读取块的数据从比读取块的其他通过更高的质量中选择数据。 来自每个块的所选数据被组合以形成数据扇区的恢复数据。

公开(公告)号：US09153265B1

公开(公告)日：2015-10-06

申请号：US14466141

申请日：2014-08-22

Applicant: Seagate Technology LLC

Inventor： Xiong Liu ,  Lihong Zhang ,  Samuel Gan ,  Shashwat Shukla

IPC: G11B5/60

CPC classification number: G11B5/60 ,  G11B5/10 ,  G11B5/6082 ,  G11B5/6088 ,  G11B2005/0021

Abstract: A slider generally comprises a substrate forming at least part of a body of the slider, a heat-assisted media recording (HAMR) read/write transducer proximate the substrate, and an end cap substantially encapsulating the HAMR read/write transducer. The end cap has a first surface proximate the substrate and a second surface as a trailing edge of the slider. The end cap has a first coefficient of thermal expansion (CTE) similar to a corresponding CTE of the substrate. At least a portion of the second surface of the end cap has a second CTE that is lower than the first CTE. A body of the end cap is intermediate to the first and second surfaces of the end cap and has a CTE intermediate of the first and second CTE.

Abstract translation: 滑动器通常包括形成滑块的主体的至少一部分的基板，靠近基板的热辅助介质记录（HAMR）读/写换能器，以及基本上封装HAMR读/写换能器的端盖。 端盖具有靠近基板的第一表面和作为滑块的后缘的第二表面。 端盖具有类似于衬底的相应CTE的第一热膨胀系数（CTE）。 端盖的第二表面的至少一部分具有低于第一CTE的第二CTE。 端盖的主体位于端盖的第一和第二表面的中间，并且具有第一和第二CTE的CTE中间体。

公开(公告)号：US20240327694A1

公开(公告)日：2024-10-03

申请号：US18616486

申请日：2024-03-26

Applicant: Seagate Technology LLC

Inventor： Li Hong Zhang ,  Barish Chakravarty ,  Xiong Liu ,  Swee Chuan Gan

IPC: C09K5/10 ,  H05K7/20

CPC classification number: C09K5/10 ,  H05K7/20236 ,  H05K7/20818

Abstract: The present disclosure includes methods of making a heat-transfer liquid solution by combining a heat-transfer liquid with a solute component to form a heat-transfer liquid solution, and related heat-transfer liquid solutions and methods of using.

公开(公告)号：US12099646B2

公开(公告)日：2024-09-24

申请号：US17836340

申请日：2022-06-09

Applicant: Seagate Technology, LLC

Inventor： Jin Quan Shen ,  Xiong Liu ,  Choon Wei Ng ,  Abhay T Kataria

IPC: G06F3/01 ,  G06F3/04815 ,  G06T19/00

CPC classification number: G06F3/011 ,  G06F3/04815 ,  G06T19/006

Abstract: An alternate reality, such as virtual reality or augmented reality, environment can experience optimized performance with a data system arranged with an interaction device connected to a virtual reality assembly. Base content and user content can respectively be downloaded and stored to a local data storage of the virtual reality assembly. The content may be utilized to proactively generate comprehensive content that consists of merged aspects of the base content and the user content. The comprehensive content can then be executed to create an immersive digital reality conveyed to a user via the interaction device.

公开(公告)号：US20240087598A1

公开(公告)日：2024-03-14

申请号：US18223896

申请日：2023-07-19

Applicant: Seagate Technology LLC

Inventor： Xiong Liu ,  Lihong Zhang ,  Quan Li ,  Wenxiang Xie

IPC: G11B5/265 ,  G11B5/55

CPC classification number: G11B5/2654 ,  G11B5/5547

Abstract: A method involves determining a threshold error rate that will result on data stored on a magnetic disk surface of a disk drive being unrecoverable. The method also involves determining a seek velocity that will overwrite sufficient portions of the data such the data will exhibit at least the threshold error rate. The disk drive performs at least one traversal of the magnetic disk surface with a head of the disk drive that emits an erase field during the at least one traversal at the seek velocity. The at least one traversal sanitizes the data.

公开(公告)号：US11783856B2

公开(公告)日：2023-10-10

申请号：US16875303

申请日：2020-05-15

Applicant: Seagate Technology LLC

Inventor： Qiang Bi ,  Jin Quan Shen ,  Xiong Liu ,  Xiang Lu ,  Hui Wang

IPC: G11B5/55

CPC classification number: G11B5/5582

Abstract: A device includes a servo controller that includes or that is coupled to memory. The memory stores multiple distinct disturbance control schemes. The servo controller is configured to select and implement one of the disturbance control schemes in response to receiving a command from a host. The servo controller can be implemented on a system on a chip.