公开(公告)号：US20230003857A1

公开(公告)日：2023-01-05

申请号：US17851781

申请日：2022-06-28

Applicant: Seagate Technology LLC

Inventor： Daniel Joseph Klemme

IPC: G01S7/499 ,  G01S17/93 ,  G01S7/4912 ,  G01S7/486

Abstract: A light detection and ranging system can have a light source coupled to a reflector consisting of a waveguide. The waveguide may be tuned to a selected polarization by a controller to block retroreflected photons resulting from a light beam emitted from the reflector. The waveguide polarization can be altered over time by the controller to provide customized blocking of photons.

公开(公告)号：US20220415352A1

公开(公告)日：2022-12-29

申请号：US17356419

申请日：2021-06-23

Applicant: Seagate Technology LLC

Inventor： Chubing Peng

IPC: G11B13/08

Abstract: A heat-assisted magnetic recording head includes a near-field transducer (NFT). The NFT includes a plasmonic disk and a near-field oscillator pair. The near-field oscillator pair includes a receiving oscillator and an emitting oscillator. The receiving oscillator is operatively coupled to the plasmonic disk and configured to receive localized surface plasmons from the plasmonic disk and amplify a near field of the localized surface plasmons. The emitting oscillator is configured to receive the near field from the receiving oscillator and emit the near field toward a surface of a magnetic disk.

公开(公告)号：US20220413103A1

公开(公告)日：2022-12-29

申请号：US17850523

申请日：2022-06-27

Applicant: Seagate Technology LLC

Inventor： Aditya Jain

IPC: G01S7/481

Abstract: A light detection and ranging system can have a metasurface that continuously extends between a pair of electrical contacts. The metasurface may be separated from an underlying silicon substrate by an air gap with the silicon substate doped with a P-i-N configuration to create electrostatic force that alters a size of the air gap in response to a voltage bias between the pair of electrical contacts.

公开(公告)号：US20220413100A1

公开(公告)日：2022-12-29

申请号：US17850127

申请日：2022-06-27

Applicant: Seagate Technology LLC

Inventor： Aditya Jain

IPC: G01S7/481 ,  G01S7/4911 ,  G02B6/122

Abstract: A light detection and ranging system can consists of an optical emitter and optical detector each connected to a controller. An isolator may be coupled to the optical emitter and be constructed of photonic crystals that exhibit a high group index to allow broadband operation with a reduced physical length.

公开(公告)号：US11538496B2

公开(公告)日：2022-12-27

申请号：US17319444

申请日：2021-05-13

Applicant: Seagate Technology LLC

Inventor： Helene Parwana Habibi ,  Simon Bance ,  Martin Liam McGarry ,  Raul Horacio Andruet ,  Martin Giles Blaber ,  Weibin Chen ,  John Charles Duda ,  Mark Anthony Gubbins ,  Erik Jon Hutchinson ,  Vivek Krishnamurthy ,  Michael Allen Seigler ,  Chen Wang

IPC: G11B11/105 ,  G11B11/24 ,  G11B5/40 ,  G11B5/187 ,  G11B5/31 ,  G11B13/08 ,  G11B5/00

Abstract: A recording head comprises a write pole extending to an air-bearing surface. A near-field transducer is positioned proximate a first side of the write pole in a down-track direction. A heatsink structure is proximate the near-field transducer and positioned between the near-field transducer and the write pole. The heatsink structure extends beyond the near-field transducer in a cross-track direction and extends in a direction normal to the air-bearing surface.

公开(公告)号：US20220408585A1

公开(公告)日：2022-12-22

申请号：US17894323

申请日：2022-08-24

Applicant: Seagate Technology LLC

Inventor： Paul McParland ,  Bruno Jean Masson ,  Jerrfrey Dale Fochtman

IPC: H05K7/14

Abstract: A data storage ecosystem that includes a series of devices of increasing size, designed to look and work together as a family, with at least one of the devices being a data storage device having a first consumer-accessible connector and a second high speed connector. The data storage ecosystem also includes a rack-mounted docking unit having a third high speed interfacing connector configured to couple to the second high speed connector of the data storage device when the data storage device is inserted into the rack-mounted docking unit.

公开(公告)号：US20220406396A1

公开(公告)日：2022-12-22

申请号：US17845643

申请日：2022-06-21

Applicant: Seagate Technology LLC

Inventor： Jon D. Trantham ,  Praveen Viraraghavan ,  John W. Dykes ,  Ian J. Gilbert ,  Sangita Shreedharan Kalarickal ,  Matthew J. Totin ,  Mohamad El-Batal ,  Darshana H. Mehta

IPC: G11C29/44 ,  G11C29/46 ,  G11C29/12 ,  G11C16/34

Abstract: A data storage system can utilize one or more data storage devices that employ a solid-state non-volatile read destructive memory consisting of ferroelectric memory cells. A leveling strategy can be generated by a wear module connected to the memory with the leveling strategy prescribing a plurality of memory cell operating parameters associated with different amounts of cell wear. The wear module may monitor activity of a memory cell and detect an amount of wear in the memory cell as a result of the monitored activity, which can prompt changing a default set of operating parameters for the memory cell to a first stage of operating parameters, as prescribed by the leveling strategy, in response to the detected amount of wear.

公开(公告)号：US20220399054A1

公开(公告)日：2022-12-15

申请号：US17840779

申请日：2022-06-15

Applicant: Seagate Technology LLC

Inventor： Jon D. Trantham ,  Praveen Viraraghavan ,  John W. Dykes ,  Ian J. Gilbert ,  Sangita Shreedharan Kalarickal ,  Matthew J. Totin ,  Mohamad El-Batal ,  Darshana H. Mehta

IPC: G11C11/56 ,  G11C11/22

Abstract: A non-volatile memory (NVM) is formed of memory cells each having multiple ferroelectric memory elements (FMEs). Each FME stores data in relation to an electrical polarity of a recording layer formed of ferroelectric or anti-ferroelectric material. Each multi-FME memory cell is coupled to a set of external control lines activated by a control circuit in a selected order to perform program and/or read operations upon the FMEs. The FMEs may share a nominally identical construction or may have different constructions. Data are programmed and written responsive to the respective program/read responses of the FMEs. Constructions can include ferroelectric tunneling junctions (FTJs), ferroelectric random access memory (FeRAM), and ferroelectric field effect transistors (FeFETs). The NVM may form a portion of a data storage device, such as a solid-state drive (SSD).

公开(公告)号：US20220399037A1

公开(公告)日：2022-12-15

申请号：US17890580

申请日：2022-08-18

Applicant: Seagate Technology LLC

Inventor： Jason Bellorado ,  Marcus Marrow ,  Zheng Wu

IPC: G11B5/596 ,  G11B5/012

Abstract: Systems and methods are disclosed for synchronous writing of a grain patterned medium. The systems and methods can be implemented within a data storage device having a grain patterned medium. Further, a calibration process to determine a count of bits between servo wedges can be implemented in manufacturing, within the data storage device, or both. In some examples, the data storage device, during operation, can utilize the count of bits to perform synchronous writing, determine write errors, or both. Further, the servo wedge of the grain patterned medium may be patterned with a same or similar grain pattern as the data area that follows the servo wedge. Such a data storage device can implement a single clock for reading a servo wedge and writing a data area.

公开(公告)号：US20220398442A1

公开(公告)日：2022-12-15

申请号：US17348569

申请日：2021-06-15

Applicant: Seagate Technology LLC

Inventor： Marc Tim JONES

IPC: G06N3/063 ,  G06N3/08

Abstract: Use of computational storage drives (CSDs) in a machine learning pipeline. The CSD may include a machine learning coprocessor capable of natively executing a machine learning model on raw data stored locally at the CSD. In turn, one or more lower order machine learning operations may be executed at a CSD in response to a read/transform command issued by a host. In turn, the CSD may return transformed data comprising data or metadata that is an output of the lower order machine learning operations. This approach may allow for application of a machine learning model locally to input data stored on the CSD having the machine learning coprocessor. This may avoid network bandwidth associated with traditional read and write operations for input and output data from a machine learning pipeline. Moreover, use of CSDs may provide highly parallelized processing using CSDs for application of machine learning operations at the edge of a network.