公开(公告)号：US11294593B2

公开(公告)日：2022-04-05

申请号：US17360760

申请日：2021-06-28

Applicant: Seagate Technology LLC

Inventor： Riyan Alex Mendonsa ,  Jon D Trantham ,  Peng Peng ,  Brett R. Herdendorf ,  Krishnan Subramanian

IPC: G11B5/40 ,  G06F3/06 ,  G11B5/455 ,  G11B33/12 ,  G11B5/02

Abstract: A storage system includes a media player including a preamplifier that is adapted to provide data access to a storage cartridge lacking an independent read/write preamplifier. The media player couples to the storage cartridges across an interconnect, and the storage cartridge is adapted to perform data access operations responsive to signals received from the media player through the interconnect.

公开(公告)号：US11120834B1

公开(公告)日：2021-09-14

申请号：US17010289

申请日：2020-09-02

Applicant: Seagate Technology LLC

Inventor： Brett R. Herdendorf ,  Riyan A. Mendonsa ,  Wolfgang Rosner ,  Jonathan Lewis Kemnitz ,  Krishnan Subramanian ,  Kurt LeRoy Erickson

IPC: G11B21/24

Abstract: A data storage device includes a base, a shaft that extends perpendicular from the base, and a head stack assembly (HSA) having a first end to which a head is coupled and a second end that is movably mounted on the shaft. The data storage device also includes either a first actuator assembly or a second actuator assembly. The first actuator assembly includes a first coil-permanent magnet assembly that rotatably moves the HSA about the shaft, and a second coil-permanent magnet assembly that serves as a first elevator to linearly move the HSA along the shaft. The second actuator assembly includes a third coil-permanent magnet assembly that rotatably moves the HSA about the shaft, and a second elevator that linearly moves the HSA along the shaft and also moves a data storage device ramp in unison with the HSA.

公开(公告)号：US20210082467A1

公开(公告)日：2021-03-18

申请号：US17069424

申请日：2020-10-13

Applicant: Seagate Technology LLC

Inventor： Brett Herdendorf ,  Riyan Mendonsa ,  Krishnan Subramanian

IPC: G11B17/22

Abstract: An apparatus with a housing which stores a plurality of data storage magazines, where each data storage magazine includes a plurality of data storage devices. The housing includes a movable carriage, the movable carriage configured to selectively couple a set of data storage devices held by a particular data storage magazine to a host device. The housing also includes a motor configured to move the movable carriage within the housing to enable the movable carriage to communicatively couple the set of data storage devices held by the particular data storage magazine to the host device

公开(公告)号：US11948612B2

公开(公告)日：2024-04-02

申请号：US17942370

申请日：2022-09-12

Applicant: Seagate Technology LLC

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

IPC: G11B5/56 ,  G11B5/012 ,  G11B21/12

CPC classification number: G11B5/56 ,  G11B5/012 ,  G11B21/12

Abstract: A data storage device includes a data storage disc, an arm, a head, a rotary actuator, and an elevator. The disc has a read/write surface defining an x-y plane. The arm includes a load beam. The head is supported by the load beam, and the head is configured to interact with the read/write surface. The rotary actuator is configured to move a first portion of the arm about a first pivot axis in the x-y plane. The elevator is configured to move the arm in a z direction relative to a vertical surface and is configured to frictionally engage the vertical surface to hold the arm at a z direction position while allowing the rotary actuator to move the first portion of the arm about the first pivot axis. In another aspect, an apparatus includes a stack block, first and second clamp arm assemblies, and first and second piezoelectric actuators.

公开(公告)号：US11817125B1

公开(公告)日：2023-11-14

申请号：US17820544

申请日：2022-08-17

Applicant: Seagate Technology LLC

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

IPC: G11B5/48 ,  G11B5/55 ,  G11B21/08

CPC classification number: G11B21/08

Abstract: A brake crawler assembly configured for vertically moving an arm assembly along a pivot member in a multi-disk hard disk drive is provided. The brake crawler assembly includes a first clamp, including a first recess within which is disposed a first actuator and a first clamp calibration element. The first clamp calibration element includes a first clamp calibration access portion adapted to be accessible externally of the first clamp and adapted to receive a first external adjustment and a first clamp internal compression modifier adapted to modify a force exerted by the first actuator on the first recess, responsive to the received first external adjustment, wherein the first clamp is configured to selectively engage the pivot member at a position along the pivot member relative to at least one disk of the multi-disk hard disk drive based on the modified force exerted.

公开(公告)号：US11774366B2

公开(公告)日：2023-10-03

申请号：US16986108

申请日：2020-08-05

Applicant: Seagate Technology LLC

Inventor： Gemma Mendonsa ,  Eric K. Wadleigh ,  Vivek Krishnamurthy ,  Riyan A. Mendonsa ,  Martin G. Blaber ,  Krishnan Subramanian

IPC: C12Q1/6869 ,  G01N21/65 ,  C12N9/12 ,  G01N27/447 ,  B82Y30/00

CPC classification number: G01N21/658 ,  C12N9/1252 ,  C12Q1/6869 ,  G01N27/44786 ,  B82Y30/00

Abstract: A Surface-Enhanced Raman Spectroscopy (SERS) device to perform accurate label-free long-read DNA sequencing. A Raman sensor has a hot spot defined by plasmonic nanostructures and excited by at least one laser. An immobilized DNA polymerase can be used to pull a DNA template strand to be sequenced through the hot spot.

公开(公告)号：US11651784B2

公开(公告)日：2023-05-16

申请号：US17473274

申请日：2021-09-13

Applicant: Seagate Technology LLC

Inventor： Brett R. Herdendorf ,  Riyan A. Mendonsa ,  Wolfgang Rosner ,  Jonathan Lewis Kemnitz ,  Krishnan Subramanian ,  Kurt LeRoy Erickson

IPC: G11B5/48 ,  G11B13/04

CPC classification number: G11B5/4813 ,  G11B13/04

Abstract: A data storage device includes a base, a shaft that extends perpendicular from the base, and a head stack assembly (HSA) having a first end to which a head is coupled and a second end that is movably mounted on the shaft. The data storage device also includes either a first actuator assembly or a second actuator assembly. The first actuator assembly includes a first coil-permanent magnet assembly that rotatably moves the HSA about the shaft, and a second coil-permanent magnet assembly that serves as a first elevator to linearly move the HSA along the shaft. The second actuator assembly includes a third coil-permanent magnet assembly that rotatably moves the HSA about the shaft, and a second elevator that linearly moves the HSA along the shaft and also moves a data storage device ramp in unison with the HSA.

公开(公告)号：US20230032300A1

公开(公告)日：2023-02-02

申请号：US17387266

申请日：2021-07-28

Applicant: Seagate Technology LLC

Inventor： Brett R. Herdendorf ,  Riyan Alex Mendonsa ,  Krishnan Subramanian ,  Kevin Lee Van Pelt

IPC: G06F3/06 ,  G05B19/4155

Abstract: A data storage blade includes a plurality of data storage cartridges, with each of the plurality of data storage cartridges comprising at least one data storage medium. The data storage blade also includes shared drive electronics (SDE) external to the plurality of data storage cartridges. The SDE is configured to control data access operations on different data storage cartridges of the plurality of data storage cartridges. The data storage blade further includes a controller-override mechanism activatable to disable communication between the SDE and the plurality of data storage cartridges.

公开(公告)号：US20220335970A1

公开(公告)日：2022-10-20

申请号：US17712513

申请日：2022-04-04

Applicant: Seagate Technology LLC

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

IPC: G11B5/56 ,  G11B21/12 ,  G11B5/012

Abstract: In one aspect, a data storage device includes a disc, an arm, a head, a linear driver, and an elevator. The disc has a read/write surface defining an x-y plane. The arm has a head end that is movable relative to the disc. The head is configured to interact with the read/write surface. The linear driver is configured to move the arm along a substantially straight line in the x-y plane. The elevator is configured to move the arm in a z direction. In another aspect, rather than a linear driver, the data storage device includes a rotary actuator and a pivot actuator. The arm includes a first portion and a load beam. The rotary actuator is configured to move the first portion about a first pivot axis; the pivot actuator is configured to move the load beam about a second pivot axis relative to the first portion.

公开(公告)号：US20220335166A1

公开(公告)日：2022-10-20

申请号：US17232380

申请日：2021-04-16

Applicant: Seagate Technology LLC

Inventor： Riyan Alex Mendonsa ,  Hongtao Zhu ,  Brett R. Herdendorf ,  Jon D. Trantham ,  Krishnan Subramanian

IPC: G06F21/78 ,  G06F13/16 ,  G06F3/06 ,  G05B15/02 ,  H05K7/14

Abstract: A data storage chassis includes a plurality of data storage cartridges, and printed circuit board assembly (PCBA) electronics selectively connectable to one or more of the plurality of data storage cartridges. The data storage chassis also includes a wireless interface controller communicatively coupled to the PCBA electronics. The wireless interface controller facilitates wireless communication of data between the data storage chassis and a host using at least one frequency in a range of frequencies including fifth-generation (5G), millimeter, and sub-millimeter frequency ranges.