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公开(公告)号：US20180330763A1
公开(公告)日：2018-11-15
申请号：US15590367
申请日：2017-05-09
Applicant: Seagate Technology LLC
Inventor： Lihong Zhang , Samuel Gan , Xiong Liu , Tanghe Guo , Takashi Fujita
CPC classification number: G11B33/144 , G11B5/012 , G11B5/105 , G11B5/40
Abstract: A data storage device may be configured with a transducing head separated from a data storage medium by an air bearing. The transducing head and data storage medium are each contained within a housing. The transducing head can consist of a variable resistance sensor that is connected to a temperature module positioned within the housing. One or more operational variables can be measured by the variable resistance sensor to allow an ambient temperature within the housing to be calculated based on a measured operational variable.
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公开(公告)号：US10127950B1
公开(公告)日：2018-11-13
申请号：US15590367
申请日：2017-05-09
Applicant: Seagate Technology LLC
Inventor： Lihong Zhang , Samuel Gan , Xiong Liu , Tanghe Guo , Takashi Fujita
CPC classification number: G11B33/144 , G11B5/012 , G11B5/105 , G11B5/40
Abstract: A data storage device may be configured with a transducing head separated from a data storage medium by an air bearing. The transducing head and data storage medium are each contained within a housing. The transducing head can consist of a variable resistance sensor that is connected to a temperature module positioned within the housing. One or more operational variables can be measured by the variable resistance sensor to allow an ambient temperature within the housing to be calculated based on a measured operational variable.
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公开(公告)号：US10109322B1
公开(公告)日：2018-10-23
申请号：US15620146
申请日：2017-06-12
Applicant: Seagate Technology LLC
Inventor： Hao Sun , Aravind Pitty , Xiong Liu
Abstract: A data storage device that includes a housing and at least one data storage medium within the housing. The data storage device further includes an anti-shock system having at least one piezoelectric layer on a portion of the housing and at least one element electrically coupled to the at least one piezoelectric layer. The at least one element provides a deflection control signal to the at least one piezoelectric layer.
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公开(公告)号：US10049692B1
公开(公告)日：2018-08-14
申请号：US14925126
申请日：2015-10-28
Applicant: Seagate Technology LLC
Inventor： Xiong Liu , Lihong Zhang , KianKeong Ooi , Xiang Lu
Abstract: Gain values used by a variable gain amplifier (VGA) to read servo marks of a heat-assisted recording medium are measured. Sector-specific, repeatable gain values that indicate an expected VGA gain at a desired clearance are determined based on the measured gain values. The sector-specific, repeatable gain values are used as input to a closed-loop clearance controller together with measured values of servo VGA gain while writing data to the recording medium.
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公开(公告)号：US09916858B1
公开(公告)日：2018-03-13
申请号：US15348409
申请日：2016-11-10
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Xiong Liu , MingZhong Ding , ChuenBuan Lee
CPC classification number: G11B20/1816 , G11B5/39
Abstract: Systems and methods for determining an occurrence of non-operation shock (NOS) in a disc drive are described. Such determining may be used to determine whether or not the disc drive should be recalibrated or compensated to account for changes induced by NOS. Determining NOS may be based at least in part on a harmonic of the spindle of the disc drive other than the first harmonic, such as a third harmonic of the spindle. In some embodiments, determining NOS may be based on the first harmonic of the spindle and at least one other harmonic of the spindle.
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Patent Agency Ranking
公开(公告)号：US09875757B1
公开(公告)日：2018-01-23
申请号：US15347111
申请日：2016-11-09
Applicant: Seagate Technology LLC
CPC classification number: G11B5/09 , G11B5/17 , G11B20/10481 , G11B2020/1238
Abstract: An offset from track center of a writer that is writing to a track of a magnetic recording medium is determined. A write current applied to a write coil of the writer is adjusted to compensate for the offset. The adjusting of the write current affects a width of the track.
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公开(公告)号：US20180005658A1
公开(公告)日：2018-01-04
申请号：US15197913
申请日：2016-06-30
Applicant: Seagate Technology LLC
Inventor： Li Hong Zhang , Xiong Liu , Swee Chuan Gan
Abstract: An anti-reflection storage medium. The anti-reflection storage medium includes a storage layer and a protective overcoat disposed over the storage later. The protective overcoat has a first refractive index value that is matched to a second refractive index value of the storage layer to reduce reflection of incident light applied to the storage medium when data is written to the storage layer of the storage medium.
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公开(公告)号：US09594628B2
公开(公告)日：2017-03-14
申请号：US14447202
申请日：2014-07-30
Applicant: Seagate Technology LLC
Inventor： Michael J C Toh , WenXiang Xie , Xiong Liu , Timothy Richard Feldman , Paul Michael Wiggins , Gregory Paul Moller
CPC classification number: G06F11/1044 , G06F11/1012 , G06F11/1064 , G06F11/1072 , G06F12/0246 , G06F12/0875 , G06F2212/2228 , G06F2212/7211
Abstract: Apparatus and method for managing a media cache through the monitoring of operational vibration of a data storage device. In some embodiments, a non-volatile media cache of the data storage device is partitioned into at least first and second zones having different data recording characteristics. Input data are received for storage in a non-volatile main memory of the data storage device. An amount of operational vibration associated with the data storage device is measured. The input data are stored in a selected one of the first or second zones of the media cache prior to transfer to the main memory responsive to a comparison of the measured amount of operational vibration to a predetermined operational vibration threshold.
Abstract translation: 通过监视数据存储装置的操作振动来管理媒体缓存的装置和方法。 在一些实施例中，数据存储设备的非易失性介质缓存被分割成具有不同数据记录特性的至少第一和第二区域。 接收输入数据以存储在数据存储装置的非易失性主存储器中。 测量与数据存储装置相关联的操作振动量。 响应于测量的操作振动量与预定的操作振动阈值的比较，将输入数据存储在介质高速缓冲存储器的第一或第二区域中的一个中，然后再传送到主存储器。
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99.发明授权公开(公告)号：US09583127B2
公开(公告)日：2017-02-28
申请号：US14746744
申请日：2015-06-22
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Jian Qiang , Xiong Liu
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.
Abstract translation: 描述用于供应存储设备的方法，系统和设备。 示例性方法包括确定与带状闪烁磁记录（SMR）磁盘驱动器的目标轨道相邻的相邻轨道的写入状态。 该方法还可以包括基于相邻轨迹的写入状态确定写入头的偏移量，并根据偏移定位写入头部。
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公开(公告)号：US20160293203A1
公开(公告)日：2016-10-06
申请号：US14674357
申请日：2015-03-31
Applicant: Seagate Technology LLC
Inventor： Lihong Zhang , Samuel Gan , Xiong Liu
CPC classification number: G11B19/048 , G01N25/72 , G11B5/6052 , G11B5/607 , G11B5/6076 , G11B19/04
Abstract: The present application provides a transducer head comprising a laser source configured to heat a target storage medium surface, and a thermal sensor configured to detect a defect on the target storage medium surface. The present application also provides a method comprising heating a target storage medium surface with an energy source configured in a transducer head to irradiate the target storage medium surface, and detecting a defect on the target storage medium surface using a thermal sensor configured in the transducer head. Other implementations are also described and recited herein.
Abstract translation: 本申请提供了一种换能器头，其包括被配置为加热目标存储介质表面的激光源和被配置为检测目标存储介质表面上的缺陷的热传感器。 本申请还提供了一种方法，其包括：加热目标存储介质表面，其中能量源被配置在换能器头中以照射目标存储介质表面;以及使用配置在换能器头中的热传感器来检测目标存储介质表面上的缺陷 。 本文还描述和叙述了其他实现。
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