公开(公告)号：US11817124B2

公开(公告)日：2023-11-14

申请号：US17542875

申请日：2021-12-06

Applicant: Seagate Technology LLC

Inventor： Ara Patapoutian ,  Jason Charles Jury

IPC: G11B20/18 ,  G11C29/42 ,  G11B19/04 ,  G11C29/52 ,  H04L43/024 ,  H03M13/37 ,  G11B7/09 ,  G11B20/12

CPC classification number: G11B20/1876 ,  G11B20/1803 ,  G06F2211/109 ,  G11B7/094 ,  G11B19/041 ,  G11B20/1258 ,  G11B20/18 ,  G11B20/1816 ,  G11B2020/1222 ,  G11C29/42 ,  G11C29/52 ,  H03M13/3715 ,  H04L43/024

Abstract: A method of recovering data from one or more failed data sectors includes estimating a reader offset position from a first or a second read attempt of the one or more failed data sectors at a current set of channel parameters and basing the estimated reader offset position on, at least in part, a position error signal generated during the first or second read attempt. At least one read is performed on the one or more failed data sectors at the estimated reader offset position to obtain one or more samples. The one or more samples are processed to obtain a processed sample. Iterative outer code recovery is performed on the processed sample.

公开(公告)号：US20230360676A1

公开(公告)日：2023-11-09

申请号：US17735380

申请日：2022-05-03

Applicant: Seagate Technology LLC

Inventor： Tze Ming Pang ,  MingZhong Ding ,  ChanFan Lau ,  Chi Sern Tan ,  Ye HaiBo

IPC: G11B19/04 ,  G11B5/48

CPC classification number: G11B19/047 ,  G11B5/4813 ,  G11B5/486

Abstract: Systems and methods are disclosed for an actuator device or actuator control device to implement a low power savings mode. For example, a device can comprise an actuator arm including a first actuator and a second actuator, the second actuator configured to refine a movement of the actuator arm to a more precise position than use of merely the first actuator. A device can also comprise a control system configured to determine when the device is in an idle state and, when the device is in the idle state, disable the second actuator and perform a positional seek operation with the second actuator disabled. Power savings can occur from disabling the second actuator, which may also include disabling associated circuitry, such that it does not consume power or consumes a nominal (e.g., negligible or insignificant) amount of power during the associated seek operation.

公开(公告)号：US20230360672A1

公开(公告)日：2023-11-09

申请号：US18224910

申请日：2023-07-21

Applicant: Seagate Technology LLC

Inventor： Zubair Ahmed Khan ,  Dat Quach ,  Andrew Habermas ,  Joel William Hoehn

IPC: G11B5/31 ,  C09J175/04 ,  C09J133/10 ,  H01L21/683 ,  H01L21/304 ,  C09J7/38 ,  B24B37/04

CPC classification number: G11B5/3169 ,  C09J175/04 ,  C09J133/10 ,  H01L21/6836 ,  H01L21/304 ,  C09J7/38 ,  B24B37/048 ,  H01L2221/68327 ,  C09J2203/326 ,  C09J2433/00 ,  C09J2475/00 ,  C08G2170/40 ,  C09J175/08

Abstract: Described are methods for processing microelectronic device substrates by a lapping step, e.g., a final lapping step, wherein the step includes the use of an elastomeric pressure-sensitive adhesive to secure the microelectronic device substrate to a carrier that holds the substrate to a surface of the carrier during the lapping step, and wherein the pressure-sensitive adhesive can be a non-polysilicone based adhesive having mechanical properties that include a tan delta that is below about 0.2.

公开(公告)号：US11810651B2

公开(公告)日：2023-11-07

申请号：US16117742

申请日：2018-08-30

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Mehmet Fatih Erden

IPC: G16B30/00 ,  G16B50/30 ,  G16B50/40 ,  G16B50/00 ,  G16B5/00 ,  G11C13/02 ,  B82Y10/00 ,  B82Y15/00 ,  C12Q1/6874 ,  C12Q1/6869

CPC classification number: G16B50/00 ,  G11C13/02 ,  G16B5/00 ,  G16B30/00 ,  G16B50/30 ,  G16B50/40 ,  B82Y10/00 ,  B82Y15/00 ,  C12Q1/6869 ,  C12Q1/6874

Abstract: Systems and methods for multi-dimensional mapping of binary data DNA sequences are described. In one embodiment, the method may include determining a current level of a first DNA base from a sequence of DNA bases based at least in part on a read process of the sequence, determining a current level of a second DNA base after the first DNA base and a current level of a third DNA base after the second DNA base, and decoding binary data from the sequence based at least in part on the determined current level of the first DNA base, the determined current level of the second DNA base, and/or the determined current level of the third DNA base.

公开(公告)号：US11809323B1

公开(公告)日：2023-11-07

申请号：US17846388

申请日：2022-06-22

Applicant: Seagate Technology LLC

Inventor： Marc Timothy Jones ,  David Jerome Allen ,  Steven Williams ,  Jason Matthew Feist

IPC: G06F12/0815 ,  G06F12/0817

CPC classification number: G06F12/0828 ,  G06F12/0815 ,  G06F2212/621

Abstract: Apparatus and method for maintaining real-time coherency between a local cache of a target device and a client cache of a source device during execution of a distributed computational function. In some embodiments, a source device, such as a host computer, is coupled via a network interface to a target device, such as a data storage device. A storage compute function (SCF) command is transferred from the source device to the target device. A local cache of the target device accumulates output data during the execution of an associated SCF over an execution time interval. Real-time coherency is maintained between the contents of the local cache and a client cache of the source device, so that the client cache retains continuously updated copies of the contents of the local cache during execution of the SCF. The coherency can be carried out on a time-based granularity or an operational granularity.

公开(公告)号：US11798598B1

公开(公告)日：2023-10-24

申请号：US17587332

申请日：2022-01-28

Applicant: Seagate Technology LLC

Inventor： Bruno Marchon ,  Dipeshkumar Jayantilal Purani ,  Tae Young Kim ,  Huazhou Lou

IPC: G11B33/14 ,  G11B33/02

CPC classification number: G11B33/1406 ,  G11B33/022 ,  G11B33/1486

Abstract: Described are hard disk drives that include a low density atmosphere, with which is included a passivating gas, and methods of using these hard disk drives and methods of assembling these hard disk drives.

公开(公告)号：US11797396B2

公开(公告)日：2023-10-24

申请号：US16944039

申请日：2020-07-30

Applicant: Seagate Technology LLC

Inventor： Deepak Sridhara ,  Jason Bellorado ,  Ara Patapoutian ,  Marcus Marrow

IPC: G06F11/14 ,  G06F11/07 ,  G06F3/06

CPC classification number: G06F11/1471 ,  G06F3/064 ,  G06F3/0619 ,  G06F3/0653 ,  G06F3/0659 ,  G06F3/0673 ,  G06F11/0772

Abstract: An error recovery process provides for selecting a first recovery scheme for a decoding attempt on a first subset of a set of failed data blocks read from a data track; selecting a second different recovery scheme for a decoding attempt on a second subset of the set of failed data blocks read from the data track; and during a single revolution of the data track, performing operations to decode a first subset of the failed data blocks according to the first recovery scheme operations to decode the second subset of the failed data blocks according to the second different recovery scheme.

公开(公告)号：US11783858B2

公开(公告)日：2023-10-10

申请号：US17569422

申请日：2022-01-05

Applicant: Seagate Technology LLC

Inventor： Brett R. Herdendorf ,  Riyan Alex Mendonsa ,  Krishnan Subramanian

IPC: G11B21/22 ,  G11B5/54 ,  F03G7/06 ,  G11B5/48 ,  G11B5/55

CPC classification number: G11B21/22 ,  F03G7/064 ,  F03G7/06143 ,  G11B5/54 ,  G11B5/4873 ,  G11B5/5573

Abstract: A device disclosed herein includes an upper shape memory alloy (SMA) wire, a lower SMA wire, a flexure having an opening, and a spring configured within the flexure opening, wherein the lower SMA wire, and the flexure are attached at one end to an anchor and at another end to a pin.

公开(公告)号：US20230318257A1

公开(公告)日：2023-10-05

申请号：US17657164

申请日：2022-03-30

Applicant: Seagate Technology LLC

Inventor： Fadi El Hallak ,  Bryn John Howells ,  Michael Gerald Boyle ,  Frank Anthony McGinnity ,  Martin Liam McGarry

IPC: H01S5/024 ,  H01S5/026

CPC classification number: H01S5/02476 ,  H01S5/026 ,  G11B2005/0021

Abstract: A method comprising the steps of forming a recording head comprising a waveguide, a heat sink and a bleed resistor on a first substrate, is described. The bleed resistor is coupled to the heat sink and the substrate. The top surface of the heat sink is planarized to form a planarized heat sink. A laser diode formed on a second substrate is transfer printed onto the planarized heat sink to form an integrated laser diode.

公开(公告)号：US11763846B2

公开(公告)日：2023-09-19

申请号：US17467783

申请日：2021-09-07

Applicant: Seagate Technology LLC

Inventor： Zhuoyuan Wu ,  Edwin F. Rejda ,  Richard T. Greenlee

IPC: G11B5/72 ,  G11B5/31 ,  G11B5/255 ,  G11B5/00

CPC classification number: G11B5/72 ,  G11B5/255 ,  G11B5/314 ,  G11B5/3106 ,  G11B5/3163 ,  G11B2005/0021 ,  Y10T428/1164

Abstract: Described are magnetic recording heads that include an overcoat that includes a titanium oxynitride (TiON) layer.