公开(公告)号：US09355671B2

公开(公告)日：2016-05-31

申请号：US14278377

申请日：2014-05-15

Applicant: Seagate Technology LLC

Inventor： Tim Rausch ,  Jon D. Trantham ,  John W. Dykes ,  Won Choul Yang

IPC: G11B7/125 ,  G11B11/00 ,  G11B7/1267 ,  G11B7/1263 ,  G11B7/007 ,  G11B19/04

CPC classification number: G11B7/1263 ,  G11B5/012 ,  G11B5/02 ,  G11B7/00736 ,  G11B7/1267 ,  G11B19/046 ,  G11B2005/0021

Abstract: A method of controlling laser output in a heat assisted magnetic recording device can be performed by control circuitry in a data storage device. The method includes measuring a temperature, measuring laser output power of a laser, determining a power error by subtracting an optimal laser output power from the measured laser output power and comparing the power error to at least one threshold to determine whether an applied current to the laser needs to be adjusted. The at least one threshold is related to how great the power error can be while maintaining the integrity of data on a recording medium.

Abstract translation: 控制热辅助磁记录装置中的激光输出的方法可由数据存储装置中的控制电路执行。 该方法包括测量温度，测量激光器的激光输出功率，通过从所测量的激光输出功率减去最佳激光输出功率并将功率误差与至少一个阈值进行比较来确定功率误差，以确定施加到 激光需要调整。 至少一个阈值与维持记录介质上数据完整性的功率误差有多大关系。

公开(公告)号：US20160055053A1

公开(公告)日：2016-02-25

申请号：US14467983

申请日：2014-08-25

Applicant: Seagate Technology LLC

Inventor： Jon D. Trantham ,  Brian T. Edgar ,  Mark Gaertner ,  Bruce Buch

IPC: G06F11/10 ,  H03M13/09

CPC classification number: G06F11/1004 ,  G06F11/1012 ,  H03M13/09 ,  H03M13/096

Abstract: Certain exemplary aspects of the present disclosure are directed towards methods and apparatuses in which logic circuitry generates an error detection code based on user data received from a host, and further generates a first set of check bits, to be written to the non-volatile memory circuit in conjunction with the user data, by combining the error detection code with a hashed data address of the user data. In some embodiments, the check bits associated with the user data providing verification that the user data was written in the appropriate physical block address of the non-volatile memory circuit.

Abstract translation: 本公开的某些示例性方面涉及其中逻辑电路基于从主机接收的用户数据生成错误检测码的方法和装置，并进一步产生要写入非易失性存储器的第一组校验位 通过将错误检测码与用户数据的散列数据地址组合在一起，与用户数据相结合。 在一些实施例中，与用户数据相关联的校验位提供用户数据被写入非易失性存储器电路的适当物理块地址中的验证。

公开(公告)号：US09218849B1

公开(公告)日：2015-12-22

申请号：US14552139

申请日：2014-11-24

Applicant: Seagate Technology LLC

Inventor： Jon D. Trantham ,  Tim Rausch ,  John W. Dykes ,  Edward C. Gage

IPC: G11B27/36

CPC classification number: G11B27/36 ,  G11B20/1879 ,  G11B20/1889 ,  G11B2005/0021 ,  G11B2220/2516

Abstract: A data storage device may employ a heat assisted magnetic recording data writer separated from a plurality of data bits stored on a media surface of a data storage medium. At least one controller and a prediction circuit that is connected to the heat assisted magnetic recording data writer can be configured to remap the media surface in response to a predicted heat assisted magnetic recording data writer failure.

Abstract translation: 数据存储装置可以使用从存储在数据存储介质的介质表面上的多个数据位分离的热辅助磁记录数据写入器。 连接到热辅助磁记录数据写入器的至少一个控制器和预测电路可以被配置为响应于预测的热辅助磁记录数据写入器故障重新映射介质表面。

公开(公告)号：US09135993B2

公开(公告)日：2015-09-15

申请号：US13761975

申请日：2013-02-07

Applicant: Seagate Technology LLC

Inventor： David Scott Ebsen ,  Antoine Khoueir ,  Jon D. Trantham

IPC: G11C13/00

CPC classification number: G11C13/0004 ,  G11C7/04 ,  G11C11/56 ,  G11C11/5614 ,  G11C11/5678 ,  G11C11/5685 ,  G11C13/0007 ,  G11C13/0011 ,  G11C13/0035 ,  G11C2211/5641

Abstract: A data storage device may generally be constructed and operated with at least one variable resistance memory cell having a first logic state threshold that is replaced with a second logic state threshold by a controller. The first and second logic states respectively corresponding to a predicted resistance shift that is based upon an operating temperature profile.

Abstract translation: 一般来说，数据存储装置可以用至少一个具有第一逻辑状态阈值的可变电阻存储器单元来构造和操作，该第一逻辑状态阈值由控制器被第二逻辑状态阈值代替。 第一和第二逻辑状态分别对应于基于工作温度分布的预测电阻偏移。

公开(公告)号：US09019646B2

公开(公告)日：2015-04-28

申请号：US13831129

申请日：2013-03-14

Applicant: Seagate Technology LLC

Inventor： Tim Rausch ,  Jon D. Trantham ,  John West Dykes ,  Housan Dakroub ,  Charles Paul Henry ,  Edward Charles Gage ,  Raul Horacio Andruet ,  James Gary Wessel ,  James Dillon Kiely ,  Bruce Douglas Buch ,  Barmeshwar Vikramaditya

IPC: G11B5/02 ,  G11B13/04 ,  G11B5/31 ,  G11B5/60 ,  G11B5/00

CPC classification number: G11B13/04 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus includes a write element configured to apply a magnetic field to write data on a portion of a heat-assisted magnetic recording media in response to an energizing current. An energy source is configured to heat the portion of the media being magnetized by the write element. A preheat energizing current is applied to the write element during an interval before writing the data to the portion of the media. The preheat energizing current does not cause data to be written to the media and brings at least one of the write element and driver circuitry into thermal equilibrium prior to writing the data on the portion.

Abstract translation: 一种装置包括：写入元件，其被配置为响应于激励电流施加磁场以在热辅助磁记录介质的一部分上写入数据。 能量源被配置为加热被写入元件磁化的介质的部分。 在将数据写入介质的一部分之前的间隔期间，将预热通电电流施加到写入元件。 在将数据写入该部分之前，预热通电电流不会导致数据被写入介质并且使写入元件和驱动器电路中的至少一个进入热平衡。

公开(公告)号：US20140244946A1

公开(公告)日：2014-08-28

申请号：US13777137

申请日：2013-02-26

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Antoine Khoueir ,  Jon D. Trantham ,  Kevin Gomez ,  Ara Patapoutian

IPC: G06F12/00

CPC classification number: G06F12/00 ,  G06F12/0238

Abstract: A plurality of addressable memory tiles each comprise one or more cross-point arrays. Each array comprises a plurality of non-volatile resistance-change memory cells. A controller is configured to couple to the array and to a host system. The controller is configured to perform receiving, from the host system, one or more data objects each having a size equal to a predetermined logical block size, and storing the one or more data objects in a corresponding integer number of one or more of the memory tiles.

Abstract translation: 多个可寻址存储器块各自包括一个或多个交叉点阵列。 每个阵列包括多个非易失性电阻变化存储单元。 控制器被配置为耦合到阵列和主机系统。 控制器被配置为执行从主机系统接收每个具有等于预定逻辑块大小的大小的一个或多个数据对象，并且将一个或多个数据对象存储在相应整数个存储器中的一个或多个存储器中 瓷砖。

公开(公告)号：US20140219001A1

公开(公告)日：2014-08-07

申请号：US13761301

申请日：2013-02-07

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Ara Patapoutian ,  Antoine Khoueir ,  Ryan James Goss ,  Jon D. Trantham

IPC: G11C13/00

CPC classification number: G11C13/0002 ,  G11C11/5614 ,  G11C11/5678 ,  G11C13/0004 ,  G11C13/0011 ,  G11C13/0033

Abstract: Data is written to cells of a resistance-based, non-volatile memory. An activity metric is tracked since the writing of the data to the cells. In response to the activity metric satisfying a threshold, a bias signal is applied to the cells to reverse a resistance shift of the cells.

Abstract translation: 数据被写入基于电阻的非易失性存储器的单元。 自从将数据写入单元格后，会跟踪活动度量。 响应于满足阈值的活动度量，将偏置信号施加到单元以反转单元的电阻偏移。

公开(公告)号：US20140029396A1

公开(公告)日：2014-01-30

申请号：US13831129

申请日：2013-03-14

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Tim Rausch ,  Jon D. Trantham ,  John West Dykes ,  Housan Dakroub ,  Charles Paul Henry ,  Edward Charles Gage ,  Raul Horacio Andruet ,  James Gary Wessel ,  James Dillon Kiely ,  Bruce Douglas Buch ,  Barmeshwar Vikramaditya

IPC: G11B13/04

CPC classification number: G11B13/04 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus includes a write element configured to apply a magnetic field to write data on a portion of a heat-assisted magnetic recording media in response to an energizing current. An energy source is configured to heat the portion of the media being magnetized by the write element. A preheat energizing current is applied to the write element during an interval before writing the data to the portion of the media. The preheat energizing current does not cause data to be written to the media and brings at least one of the write element and driver circuitry into thermal equilibrium prior to writing the data on the portion.

Abstract translation: 一种装置包括：写入元件，其被配置为响应于激励电流施加磁场以在热辅助磁记录介质的一部分上写入数据。 能量源被配置为加热被写入元件磁化的介质的部分。 在将数据写入介质的一部分之前的间隔期间，将预热通电电流施加到写入元件。 在将数据写入该部分之前，预热通电电流不会导致数据被写入介质并且使写入元件和驱动器电路中的至少一个进入热平衡。

公开(公告)号：US12197750B2

公开(公告)日：2025-01-14

申请号：US18403855

申请日：2024-01-04

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Jon D. Trantham ,  Hemant Vitthalrao Mane ,  Kristofer Carlson Conklin ,  Manuel Alexander Offenberg ,  Steven Williams

IPC: G06F3/06

Abstract: A data storage system for use in a high radiation environment runs first and second operating time counters to monitor a field-programmable, gate array (FPGA) configured as a storage controller. Based on the first operating time counter passing a first threshold, the FPGA is fully reprogrammed. Based on the second operating time counter passing a second threshold less than the first threshold, the FPGA is partially reprogrammed.

公开(公告)号：US20240394154A1

公开(公告)日：2024-11-28

申请号：US18671609

申请日：2024-05-22

Applicant: Seagate Technology LLC

Inventor： Mohamad El-Batal ,  Curtis Stevens ,  David Allen ,  Jon D. Trantham ,  Ian Robert Davies ,  Mark A. Gaertner

IPC: G06F11/16 ,  G06F11/07 ,  G06F11/10

Abstract: A failure of a head is detected, the head reading from and writing to an affected surface of a disk of a disk drive. The failure prevents the head from writing to the affected surface but does not prevent the head from reading from the affected surface. In response to detecting the failure, a remediation is performed. The remediation involves determining spare capacity blocks on other surfaces of the disk drive different than the affected surface, and copying data from the affected surface to the spare capacity blocks via an internal copy function within the disk drive. The spare capacity blocks in place of the affected surface for data storage and retrieval subsequent to the failure.