公开(公告)号：US11654436B2

公开(公告)日：2023-05-23

申请号：US17397162

申请日：2021-08-09

Applicant: Seagate Technology LLC

Inventor： Tim Rausch ,  Edward Charles Gage ,  Walter R. Eppler ,  Gemma Mendonsa

IPC: B01L7/00 ,  B01L9/00 ,  B01L3/00 ,  C12Q1/686 ,  B82Y5/00 ,  B82Y25/00

CPC classification number: B01L7/52 ,  B01L3/502715 ,  B01L9/527 ,  B01L2200/027 ,  B01L2300/087 ,  B01L2300/1816 ,  B01L2300/1866 ,  B82Y5/00 ,  B82Y25/00 ,  C12Q1/686

Abstract: A microfluidic device for polymerase chain reaction (PCR) processing includes a platform with a microstructure with at least one reaction chamber, and a heating element. The heating element heats at least a part of the at least one reaction chamber. The heating element includes at least one spin torque oscillator (STO) configured to heat the at least a part of the at least one reaction chamber to one or more temperatures for PCR processing.

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：US11646059B2

公开(公告)日：2023-05-09

申请号：US17460735

申请日：2021-08-30

Applicant: Seagate Technology LLC

Inventor： Zheng Wang ,  Ara Patapoutian ,  Jason Bellorado ,  William M. Radich

IPC: G11B21/10 ,  G06N3/04

CPC classification number: G11B21/106 ,  G06N3/04

Abstract: Components are extracted from user data being read from a reader of a hard disk drive. The components collectively indicate both a magnitude and direction of a read offset of the reader over a track. The components are input to a machine-learning processor during operation of the hard disk drive, causing the machine-learning processor to produce an output. A read offset of the reader is estimated during the operation of the hard drive head based on the output of the machine learning processor. While reading the user data, a radial position of the reader over the track is adjusted via an actuator based on the estimated read offset.

公开(公告)号：US11646058B1

公开(公告)日：2023-05-09

申请号：US17657167

申请日：2022-03-30

Applicant: Seagate Technology LLC

Inventor： Martin Giles Blaber ,  Michael Allen Siegler ,  James G Wessel ,  YuHang Cheng ,  Scott M Franzen

IPC: G11B13/08 ,  G11B5/31 ,  G11B5/00

CPC classification number: G11B13/08 ,  G11B5/3106 ,  G11B2005/0021

Abstract: A heat-assisted magnetic recording head includes a near-field transducer, a heat sink, a diffuser, and a diffusion barrier. The near-field transducer is configured to produce a hot spot on a proximate magnetic disk. The heat sink is configured to draw heat away from the near-field transducer. The heat sink is disposed in a down-track direction relative to and coupled to the near-field transducer. The diffuser is configured to draw heat away from the heat sink. The diffuser is disposed in a down-track direction relative to the heat sink. The diffusion barrier includes a metal. The diffusion barrier is disposed between and coupled to the heat sink and the diffuser.

公开(公告)号：US11636041B2

公开(公告)日：2023-04-25

申请号：US17068183

申请日：2020-10-12

Applicant: Seagate Technology LLC

Inventor： Deepak Nayak ,  Hemant Mohan

IPC: G06F12/10 ,  G06F12/06

Abstract: A system includes memory and one or more processors programmed to operate a logical layer, a media link layer, and a slot layer. The logical layer is configured to send and receive object data to a host according to an object storage protocol. The media link layer is configured to map the object data to virtual media addresses. The slot layer is configured to map the virtual media addresses to physical addresses of data storage devices.

公开(公告)号：US20230115664A1

公开(公告)日：2023-04-13

申请号：US17497345

申请日：2021-10-08

Applicant: Seagate Technology LLC

Inventor： Marc T. Jones

IPC: G06F9/50 ,  G06F13/42

Abstract: A method includes managing, by a computer processing unit (CPU) in a first enclosure, a computing task. The method further includes determining, by a controller, that the computing task requires an additional resource. The controller selects an available resource from a pool of available resources in the first enclosure and in a second enclosure by comparing weighted paths between the first CPU and the available resources. Data is transferred between the CPU and the selected available resource to assist with the computing task.

公开(公告)号：US20230114979A1

公开(公告)日：2023-04-13

申请号：US17961166

申请日：2022-10-06

Applicant: Seagate Technology LLC

Inventor： Robert D. Turner ,  Yuhang Cheng ,  Peter W. Kanas ,  Martin Liam McGarry ,  Peter Kevin McGeehin ,  Kevin R. Heim ,  Edward Charles Gage ,  Shaikh Mubassar Ali ,  Huazhou Lou

IPC: G11B33/14 ,  G11B13/08 ,  G11B5/012 ,  G11B5/31

Abstract: A heat-assisted magnetic recording device is disposed in a hermetically sealed enclosure. The device includes a slider comprising a reader, a writer, and an optical waveguide configured to couple light from a light source to a near-field transducer situated at or near an air bearing surface of the slider. The near-field transducer comprises an enlarged portion and a peg extending from the enlarged portion in a direction of the air bearing surface. A fill gas is provided within the enclosure. The fill gas comprises a mixture of a low-density, inert gas and at least one gas that oxidizes carbon, where the total carbon oxidizing gas concentration of the fill gas is 3-50% by volume. In certain embodiments, the fill gas comprises a hydrogen concentration sufficient to retard oxidation of the peg when the peg is at an operating temperature associated with write operations.

公开(公告)号：US20230102012A1

公开(公告)日：2023-03-30

申请号：US17490965

申请日：2021-09-30

Applicant: Seagate Technology LLC

Inventor： Nolan MIRANDA ,  Vipin Singh SEHRAWAT ,  Foo Yee YEO

IPC: H04L9/08

Abstract: Polynomial function secret sharing provides for computation of reconstruction share results for a polynomial function on an input. An allocatable share of the polynomial function is received at a computing system of the share result computation systems. The allocatable share is generated from the polynomial function. Each of the allocatable shares is distributed to a unique share result computation system of the share result computation systems. Each allocatable share includes a share element for each coefficient in the polynomial function, wherein the share elements for a coefficient across the share result computation systems summing to the coefficient. A reconstruction share result is generated at the computing system by computing a dot product of the input and the allocatable share received by the computing system. A combination of the reconstruction share results generated by the share result computation systems yields a reconstructed result of the polynomial function on the input.

公开(公告)号：US20230079518A1

公开(公告)日：2023-03-16

申请号：US17876656

申请日：2022-07-29

Applicant: Seagate Technology LLC

Inventor： Aditya Jain ,  Yueyang Chen

IPC: G02F1/35 ,  G02F1/00 ,  G02B5/08

Abstract: A metasurface includes a plurality of Bragg mirrors, each having a defect cavity therein, arrayed in a grid. A heat source is provided for each of the plurality of Bragg mirrors. Each heat source is positioned to selectively modulate heat applied to its respective Bragg mirror and to impart a different phase shift via the applied heat from the heat source.

公开(公告)号：US20230075424A1

公开(公告)日：2023-03-09

申请号：US17469471

申请日：2021-09-08

Applicant: Seagate Technology LLC

Inventor： Rishi Ahuja ,  Zheng Wang

IPC: G06N5/00 ,  G06N20/20

Abstract: Systems and methods are disclosed for a decision tree processing system. A machine learning decision tree architecture, such as a Random Forest, can be very intense in computation and can require a large amount of memory. To account for such, the systems and methods herein can implement a hardware approach where the training for the decision trees can be performed in advance via firmware (or an algorithm implemented via any other software and processing system) and the hardware can implement a circuit to process the decision trees. In some examples, multiple decision trees may be processed in parallel. Also, a circuit can compute the best outcome for a decision tree based on a random feature and a pre-determined threshold for the random feature assigned to each node of the decision tree.