公开(公告)号：US20240161825A1

公开(公告)日：2024-05-16

申请号：US18388924

申请日：2023-11-13

Applicant: Seagate Technology LLC

Inventor： Brett R. Herdendorf ,  Riyan Alex Mendonsa ,  Joachim Walter Ahner

IPC: G11C13/04

CPC classification number: G11C13/048

Abstract: Reading data stored on an optical fiber medium includes receiving an optical fiber having data stored thereon in a light-affecting format, guiding the optical fiber through a readback guide system causing a length of the optical fiber to align with an axis, directing light through at least a portion of the optical fiber, the light producing an observable light dispersion pattern based on the light-affecting data stored on the optical fiber, observing the light dispersion pattern as a manner of reading the stored data of the optical fiber, determining the stored data based on the observing the light dispersion pattern, and outputting the determined stored data to a host.

公开(公告)号：US11966617B2

公开(公告)日：2024-04-23

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

CPC classification number: G06F3/0655 ,  G05B19/4155 ,  G06F3/0604 ,  G06F3/0676 ,  G05B2219/40252

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：US11875830B2

公开(公告)日：2024-01-16

申请号：US17728415

申请日：2022-04-25

Applicant: Seagate Technology LLC

Inventor： Matthew Aaron Carper ,  Anil J. Reddy ,  Brett R. Herdendorf ,  Riyan Alex Mendonsa

IPC: G11B5/60 ,  G11B5/48

CPC classification number: G11B5/6058 ,  G11B5/4833

Abstract: A data storage device (DSD) includes a base-deck, a disc above the base-deck, and a shaft extending perpendicular from the base-deck. The DSD also includes a head stack assembly (HSA) including a head gimbal assembly having a load beam and a head at a first end of the HSA. The head interacts with a surface of the disc. The HSA also includes a second end movably mounted on the shaft. The DSD additionally includes an elevator that linearly moves the HSA along the shaft to adjust a distance between the load beam and the surface of the disc in response to receiving a feedback signal associated with the interaction of the head with the surface of the disc. The feedback signal is one of a plurality of feedback signals employed by the elevator to adjust the distance between the load beam and the surface of the disc.

公开(公告)号：US11843692B2

公开(公告)日：2023-12-12

申请号：US16806920

申请日：2020-03-02

Applicant: Seagate Technology LLC

Inventor： Riyan Alex Mendonsa ,  Saravanan Nagarajan ,  Kenneth A. Haapala

IPC: H04L9/08 ,  H04L9/32 ,  G11B33/12 ,  G11C16/10 ,  G07C9/00 ,  G11B15/68

CPC classification number: H04L9/0825 ,  G07C9/00182 ,  G11B15/6835 ,  G11B33/124 ,  G11C16/10 ,  H04L9/0866 ,  H04L9/0894 ,  H04L9/3263

Abstract: A secure cartridge-based storage system includes a set of read/write control electronics on a control board adapted to removably couple with each of a plurality of storage cartridges. The read/write control electronics are adapted to transmit a public key to a target storage cartridge in response to a read/write command received from a host device. The target storage cartridge includes and encryption circuit that authenticates the transmitted public key against a stored public key, accesses a locally-stored encryption key responsive to successful authentication of the public key; and utilizes the locally-stored encryption key to encrypt or decrypt data of the read/write command that is in transit between the storage media and the control board.

公开(公告)号：US11748272B2

公开(公告)日：2023-09-05

申请号：US17308882

申请日：2021-05-05

Applicant: Seagate Technology LLC

Inventor： Riyan Alex Mendonsa ,  Yasaman Keshtkarjahromi ,  Josip Relota ,  Vipin Singh Sehrawat

IPC: G06F12/14 ,  H04L9/08

CPC classification number: G06F12/1408 ,  H04L9/0816 ,  G06F2212/1052

Abstract: In at least one implementation, technology disclosed herein provides a method including generating a plurality of shares of an encryption key such that a combination of shares having a cardinality above a threshold cardinality is sufficient to retrieve data encrypted with the encryption key, distributing the plurality of shares among a plurality of devices, the plurality of devices including one or more disc drive cartridges and one or more printed circuit board assemblies (PCBAs) configured to host one or more of the disc drive cartridges, receiving one or more of the plurality of shares from the plurality of devices, and in response to determining that cardinality of the received one or more of the plurality of shares is above the threshold cardinality, retrieving the data encrypted with the key.

公开(公告)号：US20230054813A1

公开(公告)日：2023-02-23

申请号：US17846231

申请日：2022-06-22

Applicant: Seagate Technology LLC

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

IPC: G11B27/00 ,  G11B17/22 ,  G11B17/02

Abstract: A system includes a library compartment, a player and a gas generator. The library compartment houses a plurality of data storage disks. The player is external to the library compartment and comprises a head that is configured to interact with at least one of the plurality of data storage disks. The gas generator is fluidly connected to the player. An embodiment includes a partition between the library compartment and player, the partition including a selectively openable interlock. In an embodiment, the player has a negative fluid pressure relative to the library compartment. A method of controlling an environment in a disk player is also described. The method includes detecting a composition of a fluid environment in the disk player and detecting a pressure of the fluid environment in the disk player.

公开(公告)号：US20220319544A1

公开(公告)日：2022-10-06

申请号：US17223447

申请日：2021-04-06

Applicant: Seagate Technology LLC

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

IPC: G11B5/48

Abstract: A data storage device, and systems thereof, including an actuator arm extending along an actuator axis and one or more rails extending along a rail axis. The rail axis is at an angle to the actuator arm and the actuator arm is movably attached to the one or more rails such that the actuator arm is restricted to linear motion along the one or more rails. Further, the device includes a linear motor positioned adjacent to the actuator arm and adapted to move the actuator arm. In one or more embodiments, the device includes a first actuator arm and a second actuator arm having the distal ends of each connected with at least one head located proximate the connection point.

公开(公告)号：US20220173539A1

公开(公告)日：2022-06-02

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

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.

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：US20240005952A1

公开(公告)日：2024-01-04

申请号：US18212283

申请日：2023-06-21

Applicant: Seagate Technology LLC

Inventor： Riyan Alex Mendonsa ,  Krishnan Subramanian ,  Brett R. Herdendorf ,  Jon D. Trantham ,  Mehmet Fatih Erden

IPC: G11B5/48

CPC classification number: G11B5/4826

Abstract: A data storage apparatus includes a disk storage region in which magnetic disks are stored. A carrier mechanism picks up one or more of the magnetic disks and moves them to and from the disk storage region. A data access device of the apparatus includes a structure to receive the one or more magnetic disks from the carrier mechanism and spins the magnetic disks in place. One or more actuator arms are operable to move across a same surface of the one or more magnetic disks. Two or more read transducers are mounted to the actuator arms and operable to simultaneously read from the same surface of the one or more magnetic disks. Two or more write transducers are mounted to the actuator arms and operable to simultaneously write to the same surface of the one or more magnetic disks.