公开(公告)号：US20230205686A1

公开(公告)日：2023-06-29

申请号：US17705196

申请日：2022-03-25

Applicant: Seagate Technology LLC

Inventor： Shankar Tukaram More ,  Vidyadhar Charudatt Pinglikar ,  Nikita Danilov ,  Ujjwal Lanjewar

IPC: G06F12/02 ,  G06F3/06

CPC classification number: G06F12/0238 ,  G06F3/061 ,  G06F3/0631 ,  G06F3/0689 ,  G06F2212/1016

Abstract: A volume for object storage encompasses a single logical block address space and the first range of logical block addresses being within the single logical block address space. A first and second range of logical block addresses are initially allocated within the single logical block address space of the volume for storing respective object metadata and object data. One or both of the first and second ranges of logical block addresses are reallocated to increase storage utilized by one of the object metadata and the object data.

公开(公告)号：US11686705B2

公开(公告)日：2023-06-27

申请号：US16870580

申请日：2020-05-08

Applicant: Seagate Technology LLC

Inventor： Gemma Mendonsa ,  Tim Rausch ,  Riyan Alex Mendonsa

IPC: G01N27/447 ,  C12N15/10

CPC classification number: G01N27/44791 ,  C12N15/101 ,  G01N27/4473

Abstract: Systems and methods for identifying DNA strand size and purifying the DNA based on strand size using electrophoresis. The methods include moving, via voltage, a plurality of DNA strands through a separation gel from an inlet of a capillary or passage to either a first outlet or a second outlet dependent on the DNA strand length. In some implementations, the system is a capillary electrophoresis system. In other implementations, the system is a microfluidic lab-on-a-chip.

公开(公告)号：US20230194991A1

公开(公告)日：2023-06-22

申请号：US18062225

申请日：2022-12-06

Applicant: Seagate Technology LLC

Inventor： Thomas Chang ,  Kim Yang Lee

IPC: G03F7/20

CPC classification number: G03F7/2016 ,  B82Y40/00

Abstract: A method of manufacturing a synthetic nanopore device for DNA sequencing disclosed herein includes providing a base template, forming a guiding layer on top of the base template, and forming a photoresist layer on top of the guiding layer. The photoresist layer is patterned, and the guiding layer is etched for form a guiding pattern. The photoresist layer is removed to form a guiding template and a self-assembled monolayer is deposited on at least a portion of the guiding template to form a patterned template. The patterned template is exposed to one or more etch processes to form a nanoimprint lithography template. A membrane is imprinted with the nanoimprint lithography template to form an array of nanopores in the membrane.

公开(公告)号：US11670337B1

公开(公告)日：2023-06-06

申请号：US17540566

申请日：2021-12-02

Applicant: Seagate Technology LLC

Inventor： Steven Douglas Granz ,  Ian James Gilbert

IPC: G11B20/12 ,  G11B21/08

CPC classification number: G11B21/08

Abstract: A data storage medium includes a substrate, and a plurality of spaced-apart discrete data storage tracks supported by the substrate. The data storage medium also includes magnetic flux sinking material between the discrete data storage tracks and over the substrate. As an alternative to the magnetic flux sinking material, plasmonic material may be included between the discrete data storage tracks and over the substrate.

公开(公告)号：US11670336B2

公开(公告)日：2023-06-06

申请号：US17065991

申请日：2020-10-08

Applicant: Seagate Technology LLC

Inventor： Aravind Pitty ,  Xiong Liu

IPC: G11B19/20 ,  H02K7/09 ,  F16C32/04

CPC classification number: G11B19/2009 ,  F16C32/0431 ,  H02K7/09 ,  F16C2370/12 ,  F16C2380/00

Abstract: A hard disk drive includes a base deck that is coupled to a cover, a motor assembly that is coupled to the base deck, and magnetic recording media that is coupled to the motor assembly. The motor assembly includes a magnetic bearing with a horizontal magnetic bearing component and a vertical magnetic bearing component.

公开(公告)号：US11661788B2

公开(公告)日：2023-05-30

申请号：US17583550

申请日：2022-01-25

Applicant: Seagate Technology LLC

Inventor： Weibin Chen ,  Nan Zhou ,  Ruoxi Yang ,  Michael Allen Siegler

IPC: G11B5/00 ,  G11B11/105 ,  E06B1/62 ,  C08L95/00 ,  E04B1/66 ,  E04F19/04

CPC classification number: E06B1/62 ,  C08L95/005 ,  E04B1/665 ,  E04F19/045 ,  E04F19/0459 ,  E06B2001/628

Abstract: A recording head has a near-field transducer that extends a first distance away from a media-facing surface. Two subwavelength focusing mirrors are at an end of a waveguide proximate the media-facing surface and extend a second distance away from the media-facing surface that is less than the first distance. The subwavelength mirrors are on opposite crosstrack sides of the near-field transducer and separated from each other by a crosstrack gap. The subwavelength focusing mirrors each include a first material at the media-facing surface and a plasmonic material that covers an edge of the subwavelength focusing mirror that faces the near-field transducer. The first material is more mechanically robust than the plasmonic material.

公开(公告)号：US20230161483A1

公开(公告)日：2023-05-25

申请号：US17991049

申请日：2022-11-21

Applicant: Seagate Technology LLC

Inventor： Jason Wayne Kinsey ,  Hemant Vitthalrao Mane ,  Niranjan Anant Pol ,  Marc Timothy Jones ,  Jason Matthew Feist

IPC: G06F3/06 ,  G06F11/10

CPC classification number: G06F3/0619 ,  G06F3/0613 ,  G06F3/0635 ,  G06F3/067 ,  G06F11/1076

Abstract: A data storage system employing distributed memories can have at least one host connected to a plurality of data storage devices via a network controller. One or more performance bottlenecks through the network controller may be identified with a performance module. A peer group consisting of at least two of the plurality of data storage devices is created with the performance module in response to the identified performance bottleneck so that a task can be assigned by the performance module to the peer group. The task may be chosen to mitigate the performance bottleneck by avoiding involvement of the network controller in the task.

公开(公告)号：US11658669B2

公开(公告)日：2023-05-23

申请号：US17582376

申请日：2022-01-24

Applicant: Seagate Technology LLC

Inventor： Jason Bellorado ,  Marcus Marrow ,  Zheng Wu

IPC: G11B20/10 ,  G11B5/00 ,  H03M1/06 ,  H03G3/30 ,  G11B5/027 ,  G11B5/012

CPC classification number: H03M1/06 ,  G11B5/012 ,  G11B5/027 ,  G11B20/10324 ,  H03G3/30 ,  H03G2201/103

Abstract: Systems and methods are disclosed for magnetoresistive asymmetry (MRA) compensation using a digital compensation scheme. In certain embodiments, a method may comprise receiving an analog signal at a continuous-time front end (CTFE) circuit, and performing analog offset compensation to constrain an extremum of the analog signal to adjust a dynamic range based on an input range of an analog-to-digital converter (ADC), rather than to modify the analog signal to have a zero mean. The method may further comprise converting the analog signal to a digital sample sequence via the ADC; performing, via a digital MRA compensation circuit, digital MRA compensation on the digital sample sequence; receiving, via a digital backend (DBE) subsystem, the digital sample sequence prior to digital MRA compensation; and generating, via a DBE, a bit sequence corresponding to the analog signal based on an output of the DBE subsystem and an output of the digital MRA compensation circuit.

公开(公告)号：US11646057B2

公开(公告)日：2023-05-09

申请号：US17409927

申请日：2021-08-24

Applicant: Seagate Technology LLC

Inventor： Zheng Wang ,  Ara Patapoutian ,  Timothy F. Ellis ,  Jason Bellorado ,  William M. Radich

IPC: G11B5/60 ,  G11B20/12 ,  G11B20/10 ,  G11B5/596 ,  G11B5/55

CPC classification number: G11B5/6029 ,  G11B5/5565 ,  G11B5/59622 ,  G11B5/607 ,  G11B20/10518 ,  G11B20/1258

Abstract: Two or more data values are received from one or more sensors of a hard disk drive. The two or more data values are indicative of a fly height of a recording head of the hard disk drive. The two or more data values are input into a machine-learning processor during operation of the hard disk drive. A fly height of the recording head during the operation of the hard drive head is adjusted based on an output of the machine learning processor.

公开(公告)号：US11645393B2

公开(公告)日：2023-05-09

申请号：US16946478

申请日：2020-06-24

Applicant: Seagate Technology LLC

Inventor： Christopher Nicholas Allo

IPC: G06F21/00 ,  G06F21/57 ,  G06F21/55 ,  G06F21/54 ,  G06F3/06 ,  G06F21/78

CPC classification number: G06F21/575 ,  G06F3/0622 ,  G06F3/0632 ,  G06F3/0658 ,  G06F3/0673 ,  G06F21/54 ,  G06F21/554 ,  G06F21/78

Abstract: A data storage device can employ a front end bus for boot operations. The physical connection of a secure boot assembly to the front end bus can provide efficient and reliable booting of the data storage device without a connection to a remote host or network. A secure boot assembly can provide a security module that connects to the boot module of the data storage device to authenticate a trustworthiness of the data storage device while the data storage device is disconnected from any remote host.