公开(公告)号：US12099642B2

公开(公告)日：2024-09-24

申请号：US17712395

申请日：2022-04-04

Applicant: Seagate Technology LLC

Inventor： Rajesh Maruti Bhagwat ,  Hemant Vitthalrao Mane ,  Avinash Suresh Pisal ,  Niranjan Anant Pol

IPC: G06F21/56 ,  G06F21/57 ,  G06F21/71 ,  G06F21/79 ,  G06F21/85

CPC classification number: G06F21/85 ,  G06F21/57

Abstract: A data storage system can have a hardware interposer connected inline between a plurality of controllers and a plurality of memories. A bus of the hardware interposer may be monitored with a security breach monitor of the hardware interposer to allow a deviation from a predetermined address range to be detected by the security breach monitor, which prompts the security breach monitor to block access through the hardware interposer for a first controller of the plurality of controllers.

公开(公告)号：US20240310866A1

公开(公告)日：2024-09-19

申请号：US18603512

申请日：2024-03-13

Applicant: Seagate Technology LLC

Inventor： Vivek Krishnamurthy ,  Aditya Jain ,  Richard Charles Alexander Pitwon ,  Anil J. Reddy

IPC: G06E3/00 ,  G02B1/00

CPC classification number: G06E3/00 ,  G02B1/005

Abstract: A laser-based computing system includes a two-dimensional photonic crystal surface emitting laser (PCSEL) array including a plurality of PCSEL emitters located in a first layer, each emitter oriented in a direction perpendicular to a plane formed by the first layer, where the plurality of PCSEL emitters form a preset pattern within the first layer, and a controller operatively connected to the plurality of PCSEL emitters, the controller configured to modulate phase and/or amplitude of a beam emitted by a PCSEL emitter of the plurality of PCSEL emitters.

公开(公告)号：US12086455B2

公开(公告)日：2024-09-10

申请号：US17497573

申请日：2021-10-08

Applicant: Seagate Technology LLC

Inventor： Stacey Secatch ,  David W. Claude ,  Daniel J. Benjamin ,  Thomas V. Spencer ,  Matthew B. Lovell ,  Steven Williams ,  Stephen H. Perlmutter

IPC: G06F3/06

CPC classification number: G06F3/0655 ,  G06F3/0604 ,  G06F3/0679

Abstract: A data storage system may have a plurality of memory cells located in different data storage devices that are arranged into a plurality of logical namespaces with each logical namespace configured to be sequentially written and entirely erased as a single unit. An asymmetry strategy may be proactively created with the asymmetry module in response to data access activity to the logical namespaces by the asymmetry module. A new mode, as prescribed by the asymmetry strategy, is entered for at least one logical namespace in response to an operational trigger being met. The new mode changes a timing of at least one queued data access request to at least one logical namespace.

公开(公告)号：US20240265944A1

公开(公告)日：2024-08-08

申请号：US18407706

申请日：2024-01-09

Applicant: Seagate Technology LLC

Inventor： Li Hong Zhang ,  Felicisimo T. Marquez, JR. ,  Xiong Liu ,  Chee Kwong Cheng

IPC: G11B19/20

CPC classification number: G11B19/2009

Abstract: A hard disk drive includes at least one magnetic disk and a motor assembly. The motor assembly is configured to rotatably support the magnetic disk(s) and circumferentially rotate the magnetic disk(s) about an axis of rotation during operations of the hard disk drive. The motor assembly includes at least one rotational balancing spring pin. Each rotational balancing spring pin is configured to reduce a rotating unbalance of the motor assembly.

公开(公告)号：US20240223359A1

公开(公告)日：2024-07-04

申请号：US18610167

申请日：2024-03-19

Applicant: Seagate Technology LLC

Inventor： Foo Yee YEO ,  Vipin Singh SEHRAWAT

IPC: H04L9/08 ,  H04L9/06

CPC classification number: H04L9/085 ,  H04L9/0656

Abstract: A secret sharing scheme with yes and no shares and having a hidden access structure. The secret sharing scheme may include share generation in which yes shares and no shares are generated for, and distributed to, each party in the secret sharing scheme. In turn, upon an attempt to reconstruct the secret, participants in the reconstruction each provide a share, which is unknown to be a yes share or a no share to the other participants. The secret is only reconstructable if the shares used in the reconstruction include yes shares of a minimal authorized subset of the parties. However, prior to secret reconstruction, the access structure remains hidden and the participants in a reconstruction are unaware of the character of the shares provided by other participants in the reconstruction attempt.

公开(公告)号：US12001594B2

公开(公告)日：2024-06-04

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: G11B17/30 ,  G05B15/02 ,  G06F3/06 ,  G06F13/16 ,  G06F21/78 ,  H05K7/14

CPC classification number: G06F21/78 ,  G05B15/02 ,  G06F3/0604 ,  G06F3/0659 ,  G06F3/0673 ,  G06F13/1668 ,  H05K7/1427

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.

公开(公告)号：US11994950B2

公开(公告)日：2024-05-28

申请号：US17564078

申请日：2021-12-28

Applicant: Seagate Technology LLC

Inventor： Stacey Secatch ,  Mark A. Gaertner

IPC: G06F11/00 ,  G06F11/10 ,  G06F21/60 ,  H04L9/14

CPC classification number: G06F11/1092 ,  G06F21/602 ,  H04L9/14

Abstract: Failure-domain-specific cryptographic keys for use in control of access to data within failure domains of a storage drive. A unique failure domain-specific cryptographic key may be associated with each of a plurality of failure domains in a storage drive. The failure domains may correspond to any portion of the storage media of a drive that is susceptible to failure while leaving other portions of the storage drive functional. In turn, upon detection of a condition associated with a failure (e.g., an actual or predicted failure) of a failure domain, the associated failure domain-specific cryptographic key may be deleted to preclude further access to data in the failed failure domain. Deletion of the failure domain-specific cryptographic key may be before or after data in the failed failure domain is rebuilt in another portion of a storage drive that is functional.

公开(公告)号：US11990184B2

公开(公告)日：2024-05-21

申请号：US17031664

申请日：2020-09-24

Applicant: Seagate Technology LLC

Inventor： Gemma Mendonsa ,  Riyan Alex Mendonsa ,  Tim Rausch

IPC: C12P19/34 ,  G11C13/02

CPC classification number: G11C13/02 ,  C12P19/34

Abstract: Methods of writing data to a DNA strand by inserting data-encoding oligos or symbols into a DNA backbone. One particular method of synthesizing a DNA strand encoding data includes cleaving a DNA backbone into multiple segments, and pasting a plurality of data-encoding oligo symbols between the multiple segments, with the terminal ends of the segments joining homologous terminal ends of the symbols, resulting in the DNA strand encoding data comprising alternating segments and symbols.

公开(公告)号：US11961543B2

公开(公告)日：2024-04-16

申请号：US17898936

申请日：2022-08-30

Applicant: Seagate Technology LLC

Inventor： Karim Tatah ,  Mourad Benakli ,  James Gary Wessel

IPC: H01S5/06 ,  G11B5/02 ,  G11B5/09 ,  G11B5/40 ,  G11B5/455 ,  G11B7/1263 ,  H01S5/024 ,  H01S5/026 ,  H01S5/065 ,  H01S5/068 ,  G11B5/00 ,  H01S5/062

CPC classification number: G11B7/1263 ,  G11B5/02 ,  G11B5/09 ,  G11B5/40 ,  G11B5/455 ,  H01S5/0261 ,  H01S5/0612 ,  H01S5/0651 ,  H01S5/06804 ,  H01S5/06808 ,  G11B2005/0021 ,  H01S5/02453 ,  H01S5/0617 ,  H01S5/06216

Abstract: A method and apparatus provide for determining a temperature at a junction of a laser diode when the laser diode is operated in a lasing state that facilitates heat-assisted magnetic recording, comparing the junction temperature and an injection current supplied during the lasing state to stored combinations of junction temperature and injection current, and determining a likelihood of mode hopping occurring for the laser diode during the lasing state based on the comparison to stored combinations of junction temperature and injection current.

公开(公告)号：US11956350B2

公开(公告)日：2024-04-09

申请号：US17219496

申请日：2021-03-31

Applicant: Seagate Technology LLC

Inventor： Foo Yee Yeo ,  Vipin Singh Sehrawat

IPC: H04L9/08 ,  H04L9/06

CPC classification number: H04L9/085 ,  H04L9/0656

Abstract: A secret sharing scheme with yes and no shares and having a hidden access structure. The secret sharing scheme may include share generation in which yes shares and no shares are generated for, and distributed to, each party in the secret sharing scheme. In turn, upon an attempt to reconstruct the secret, participants in the reconstruction each provide a share, which is unknown to be a yes share or a no share to the other participants. The secret is only reconstructable if the shares used in the reconstruction include yes shares of a minimal authorized subset of the parties. However, prior to secret reconstruction, the access structure remains hidden and the participants in a reconstruction are unaware of the character of the shares provided by other participants in the reconstruction attempt.