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公开(公告)号：US09858961B2
公开(公告)日：2018-01-02
申请号：US14724523
申请日：2015-05-28
Applicant: Seagate Technology LLC
Inventor： Wenzhong Zhu , Kenneth A. Haapala , Kaizhong Gao , Edward Gage
CPC classification number: G11B20/1217 , G06F12/0238 , G06F2212/1044 , G06F2212/152 , G06F2212/21 , G06F2212/70 , G11B5/012 , G11B5/09 , G11B2020/1238 , G11B2020/1292
Abstract: A storage device includes a multi-reader transducer head with a first reader and a second reader having an effective cross-track separation equal to a multiple of a defined track-pitch of a storage medium of the storage device. The effective cross-track separation may permit for a simultaneous data read of two non-adjacent data tracks.
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公开(公告)号：US09830935B1
公开(公告)日：2017-11-28
申请号：US15233774
申请日：2016-08-10
Applicant: Seagate Technology LLC
Inventor： Kaizhong Gao , Wenzhong Zhu , Edward Gage
CPC classification number: G11B5/02 , G11B5/3951 , G11B5/397 , G11B5/398 , G11B5/4886
Abstract: An apparatus that includes a read sensor having a bearing surface and first and second free layers that are separated by an intermediate structure. The first FL includes multiple segments, with each segment having a width at the bearing surface. A sum of the widths of different ones of the multiple segments is a first width of the first FL. The second FL is unsegmented and has a second width at the bearing surface that is different from the first width of the first FL. The read sensor also includes a first terminal connected to a first one of the multiple segments of the first FL, and a second terminal connected to a second one of the multiple segments of the first FL. A third terminal is connected to the second FL. Control circuitry applies a bias current from either the first or second terminal to the third terminal.
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公开(公告)号：US09741363B2
公开(公告)日：2017-08-22
申请号：US14806358
申请日：2015-07-22
Applicant: Seagate Technology LLC
Inventor： Minjie Ma , Kaizhong Gao , Edward Gage , Tim Rausch
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.
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公开(公告)号：US20170148484A1
公开(公告)日：2017-05-25
申请号：US15427949
申请日：2017-02-08
Applicant: Seagate Technology LLC
Inventor： Wenzhong Zhu , Kaizhong Gao , Edward Gage
CPC classification number: G11B20/1217 , G06F12/0238 , G06F2212/1044 , G06F2212/152 , G06F2212/21 , G06F2212/70 , G11B5/012 , G11B5/09 , G11B2020/1238 , G11B2020/1292
Abstract: A storage device includes a controller that directs incoming data to a storage location based on a capacity of a region or surface of a magnetic disc. According to one implementation, the storage device controller writes new data to data tracks in a first series of data tracks on the magnetic disc until a capacity condition is satisfied. Once the capacity condition is satisfied, the storage device controller writes new data to a second series of data tracks on the storage medium that are interlaced with data tracks of the first series.
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公开(公告)号：US09530447B2
公开(公告)日：2016-12-27
申请号：US14633556
申请日：2015-02-27
Applicant: Seagate Technology LLC
Inventor： Kaizhong Gao , Wenzhong Zhu , Edward Gage , James Mcglennen , Jon Trantham
IPC: G11B5/09 , G11B7/1263 , G11B5/596 , G11B5/00 , G11B5/012
CPC classification number: G11B5/596 , G11B5/012 , G11B5/09 , G11B2005/0018 , G11B2005/0021
Abstract: A data storage device may be configured with at least a heat assisted magnetic recording head that has a laser and is connected to a controller. The heat assisted magnetic recording head can be positioned proximal first and second data bits stored on an adjacent data storage medium. A first laser power may be applied by the laser in response to the first data bit being a different magnetic polarity than the second data bit and a different second laser power can be applied by the laser in response to the first and second data bits having a common magnetic polarity.
Abstract translation: 数据存储装置可以配置有至少一个具有激光并且连接到控制器的热辅助磁记录头。 热辅助磁记录头可位于邻近数据存储介质上的第一和第二数据位的近侧。 激光器可以响应于第一数据位与第二数据位不同的磁极来施加第一激光功率，并且响应于第一和第二数据位具有不同的第二激光功率可以施加不同的第二激光功率 共极性极性。
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Patent Agency Ranking
公开(公告)号：US09508362B2
公开(公告)日：2016-11-29
申请号：US14686456
申请日：2015-04-14
Applicant: Seagate Technology LLC
Inventor： Kaizhong Gao , Wenzhong Zhu , Edward Gage
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 includes a controller that implements an interlaced magnetic recording scheme with prioritized random access. According to one implementation, a controller is configured to write data at a first linear density to alternating data tracks and write data at a second linear density to one or more data tracks interlaced with the alternating data tracks.
Abstract translation: 存储设备包括实现具有优先随机访问的隔行磁记录方案的控制器。 根据一个实施方案，控制器被配置为以第一线性密度将数据写入交替数据轨道，并以第二线性密度将数据写入与交替数据轨道交错的一个或多个数据磁道。
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公开(公告)号：US20160254020A1
公开(公告)日：2016-09-01
申请号：US14633556
申请日：2015-02-27
Applicant: Seagate Technology LLC
Inventor： Kaizhong Gao , Wenzhong Zhu , Edward Gage , James Mcglennen , Jon Trantham
IPC: G11B7/1263 , G11B5/596
CPC classification number: G11B5/596 , G11B5/012 , G11B5/09 , G11B2005/0018 , G11B2005/0021
Abstract: A data storage device may be configured with at least a heat assisted magnetic recording head that has a laser and is connected to a controller. The heat assisted magnetic recording head can be positioned proximal first and second data bits stored on an adjacent data storage medium. A first laser power may be applied by the laser in response to the first data bit being a different magnetic polarity than the second data bit and a different second laser power can be applied by the laser in response to the first and second data bits having a common magnetic polarity.
Abstract translation: 数据存储装置可以配置有至少一个具有激光并且连接到控制器的热辅助磁记录头。 热辅助磁记录头可位于邻近数据存储介质上的第一和第二数据位的近侧。 激光器可以响应于第一数据位与第二数据位不同的磁极来施加第一激光功率，并且响应于第一和第二数据位具有不同的第二激光功率可以施加不同的第二激光功率 共极性极性。
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公开(公告)号：US20160148642A1
公开(公告)日：2016-05-26
申请号：US14686561
申请日：2015-04-14
Applicant: Seagate Technology LLC
Inventor： Kaizhong Gao , Wenzhong Zhu , Edward Gage
IPC: G11B20/12
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 includes a transducer head including a first write element configured to write data at a first write width and a second write element configured to write data at a second write width less than the first write width. According to one implementation, the first write element writes data at a first linear density and to alternating data tracks and the second write element writes data at a second linear density and to data tracks interlaced with the alternating data tracks.
Abstract translation: 存储装置包括：转换器头，包括被配置为以第一写入宽度写入数据的第一写入元件和被配置为以小于第一写入宽度的第二写入宽度写入数据的第二写入元件。 根据一个实施方式，第一写入元件以第一线性密度写入数据，并将数据写入交替的数据轨道，而第二写入元件以第二线性密度写入数据以及与交替的数据轨道隔行的数据磁道。
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公开(公告)号：US20180047422A1
公开(公告)日：2018-02-15
申请号：US15795044
申请日：2017-10-26
Applicant: Seagate Technology LLC
Inventor： Steven Granz , Edward Gage , Alfredo Chu , Wenzhong Zhu
IPC: G11B7/1263 , G11B20/12 , G11B7/126 , G11B5/00 , G11B5/60 , G11B7/1267
CPC classification number: G11B7/1263 , G11B5/6088 , G11B7/126 , G11B7/1267 , G11B20/1217 , G11B2005/0021 , G11B2020/1238
Abstract: A storage device includes a storage controller configured to operate a heat-assisted magnetic recording head to write data to a band of consecutive data tracks in a consecutive track order while selectively alternating a power level of the heat source when writing to some data tracks of the band.
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公开(公告)号：US20170330587A1
公开(公告)日：2017-11-16
申请号：US15667904
申请日：2017-08-03
Applicant: Seagate Technology LLC
Inventor： Kaizhong Gao , Wenzhong Zhu , Tim Rausch , Edward Gage
CPC classification number: G11B20/1217 , G11B5/012 , G11B5/02 , G11B5/4866 , G11B5/6088 , G11B7/0037 , G11B20/1258 , G11B2005/0021 , G11B2020/1087 , G11B2020/10888 , G11B2020/1238 , G11B2020/1264 , G11B2020/1292
Abstract: A storage device controller is configured to select one of multiple written track widths for a storage location based on a write attribute of data to be recorded at the storage location. According to one implementation, the storage device controller is further configured to select a power level for a heat-assisted magnetic recording (HAMR) device based on the write attribute.
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