公开(公告)号：US11460545B2

公开(公告)日：2022-10-04

申请号：US16721598

申请日：2019-12-19

Applicant: Seagate Technology LLC

Inventor： Aditya Jain ,  Zoran Jandric ,  Krishnan Subramanian

IPC: G01S7/481 ,  G02F1/015 ,  G02F1/29 ,  G02B17/00 ,  G01S17/06

Abstract: A device includes a light splitter configured to receive a source light beam from a light source and split the source light beam into separate light beams, each emitted through an outlet. The device also includes resonators, each of which is optically coupled to at least one of the outlets and is configured to steer at least one of the light beams.

公开(公告)号：US11443775B1

公开(公告)日：2022-09-13

申请号：US17235614

申请日：2021-04-20

Applicant: Seagate Technology LLC

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

IPC: G11B33/14 ,  G11B17/22 ,  G11B17/26 ,  G11B23/03

Abstract: An issue facing shared read/write player hard disc drives (HDDs) is when a head-media contact event occurs, any resulting plume of debris caused by the contact event not only affects the magnetic disc currently being read or written, but other magnetic discs within the HDD enclosure. The presently disclosed technology is directed as mitigating the potential consequences of such a head-media contact event. By providing one or more internal access doors within the HDD, a magnetic disc currently being read from or written to may be physically isolated from other magnetic discs within the HDD. As a result, in the event of a head-media contact event, any resulting plume of debris caused by the contact event only affects the magnetic disc currently being read or written. The remaining magnetic discs within the HDD are isolated from the plume of debris.

公开(公告)号：US20220201884A1

公开(公告)日：2022-06-23

申请号：US17129500

申请日：2020-12-21

Applicant: Seagate Technology LLC

Inventor： Brett Herdendorf ,  Riyan Mendonsa ,  Krishnan Subramanian

IPC: H05K5/02

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 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 physical locking mechanism configured to selectively prevent data storage devices from coupling to the host device.

公开(公告)号：US11348611B1

公开(公告)日：2022-05-31

申请号：US17233818

申请日：2021-04-19

Applicant: Seagate Technology LLC

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

IPC: G11B5/09 ,  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：US11335373B1

公开(公告)日：2022-05-17

申请号：US17181804

申请日：2021-02-22

Applicant: Seagate Technology LLC

Inventor： Krishnan Subramanian ,  Aditya Jain ,  Riyan Alex Mendonsa ,  Anil J. Reddy ,  Edward Charles Gage

IPC: G11B11/105 ,  G11B7/1387 ,  G11B7/24067 ,  G11B7/127 ,  G11B7/13 ,  G11B5/00

Abstract: 3D optical data storage refers to forms of optical data storage in which information can be recorded and/or read with 3D resolution. 3D optical media are generally limited in areal density by the diffraction limit of laser light used to read and/or write data to and/or from the optical media. It is thus advantageous to find ways to store data on 3D optical media with a spot size below the diffraction limit of an associated laser reader to further increase areal density of the optical media. A hybrid approach that utilizes plasmon technology to access a surface layer of the 3D optical media with an extremely small spot size and photon technology to access interior layers of the 3D optical media with a larger spot size may substantially increase overall data density of the 3D optical media.

公开(公告)号：US20220105741A1

公开(公告)日：2022-04-07

申请号：US17504065

申请日：2021-10-18

Applicant: Seagate Technology LLC

Inventor： Zoran Jandric ,  Kevin A. Gomez ,  Dan Mohr ,  Anil J. Reddy ,  Aditya Jain ,  Krishnan Subramanian

IPC: B41M3/14 ,  C09D11/50 ,  C09D11/037 ,  G06T1/00

Abstract: Systems, devices, and methods may use input/output (I/O) apparatus and an optical switching medium to switch, or route, optical data signals. The optical switching medium may include a plurality of optical switching regions. The I/O apparatus may transmit optical data signals to and receive optical data signals from the optical switching medium to provide switching functionality.

公开(公告)号：US11238894B2

公开(公告)日：2022-02-01

申请号：US17039716

申请日：2020-09-30

Applicant: Seagate Technology LLC

Inventor： Brett R. Herdendorf ,  Jon D. Trantham ,  Anil J. Reddy ,  Riyan Alex Mendonsa ,  Krishnan Subramanian

IPC: G11B15/68 ,  G11B20/10 ,  G11B33/12 ,  G11B17/22 ,  G11B33/04

Abstract: A data storage library includes a number of storage cartridges arranged in a rack accessed by a actuated media player. The actuated media player is adapted to move the along a plane relative to a fixed subset of the storage cartridges in the rack to and to selectively couple to each storage cartridge of the fixed subset to facilitate selective read/write access.

公开(公告)号：US11150410B2

公开(公告)日：2021-10-19

申请号：US16513455

申请日：2019-07-16

Applicant: Seagate Technology LLC

Inventor： Zoran Jandric ,  Kevin A. Gomez ,  Dan Mohr ,  Anil J. Reddy ,  Aditya Jain ,  Krishnan Subramanian

IPC: G02B6/35

Abstract: Systems, devices, and methods may use input/output (I/O) apparatus and an optical switching medium to switch, or route, optical data signals. The optical switching medium may include a plurality of optical switching regions. The I/O apparatus may transmit optical data signals to and receive optical data signals from the optical switching medium to provide switching functionality.

公开(公告)号：US10332547B1

公开(公告)日：2019-06-25

申请号：US16048864

申请日：2018-07-30

Applicant: Seagate Technology LLC

Inventor： Mehmet Faith Erden ,  Krishnan Subramanian ,  Walter R. Eppler

IPC: G11B5/09 ,  G11B5/012 ,  G11B21/00

Abstract: A first reader spans first and second tracks of a recording medium and provides a first signal responsive to a first total longitudinal field of the first and second tracks. A second read spans two other tracks, at least one of the two other tracks being different from the first and second tracks. The second reader provides a second signal responsive to a second total longitudinal field of the two other tracks. A third reader spans two or more of the tracks and provides a third signal responsive to a total perpendicular field of the two or more tracks. User data is decoded from the first, second, and third signals.

公开(公告)号：US12113310B2

公开(公告)日：2024-10-08

申请号：US17108567

申请日：2020-12-01

Applicant: Seagate Technology LLC

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

IPC: H01R12/85 ,  H01R4/01 ,  H05K3/32

CPC classification number: H01R12/856 ,  H01R4/01 ,  H05K3/325

Abstract: Connector devices or connectors for use in interconnection to a circuit board may be configured in an open or closed configuration. The connectors devices may utilize a shape memory alloy (SMA) actuator to move clamping portions with respect to each other into one or both of the open or closed positions.