公开(公告)号：US10777224B2

公开(公告)日：2020-09-15

申请号：US16556501

申请日：2019-08-30

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Timothy Francis Ellis ,  Gary Ernest Hillukka ,  Joshua Ward Christensen ,  Puskal Prasad Pokharel

IPC: G11B5/596 ,  G11B20/12

Abstract: Systems and methods for servo zone transition optimization are described. In one embodiment, the storage system device includes a disk drive and a controller. In some embodiments, the controller may be configured to assess at least one operation of a read/write head of the disk drive; and format, based at least in part on the assessing of the read/write head, a disk surface of the disk drive with a first servo zone, a second servo zone, and an overlap region extending between a start point of the second servo zone and an end point of the first servo zone. In some cases, the overlap region starts towards a disk inner diameter (ID) and ends towards a disk outer diameter (OD).

公开(公告)号：US20200285760A1

公开(公告)日：2020-09-10

申请号：US16296800

申请日：2019-03-08

Applicant: Seagate Technology LLC

Inventor： Saheb BISWAS ,  Kevin Gautam STERNBERG ,  David Michael SEESDORF ,  Timothy John COURTNEY

IPC: G06F21/60 ,  H04L29/06 ,  H04L9/32 ,  G06F16/23

Abstract: A system includes an environment-aware storage drive comprising one or more storage medium with a location-based service wherein the environment-aware storage drive generates a signal containing information about a location of the storage drive relative to a geo-fenced area and updates a ledger unit of an event happening to the storage drive based on the signal, wherein the event is related to the current environment of the storage drive. The ledger unit keeps track of a number of events and/or data received from the environment-aware storage drive. A policy unit determines an expandable set of security policies for the storage drive triggered by the event and/or data, wherein the security policies specify access restrictions to the environment-aware storage drive based on its current environment. The policy unit transmits and enforces the set of security policies on the environment-aware storage drive to prevent data from being theft from the storage drive.

公开(公告)号：US20200283895A1

公开(公告)日：2020-09-10

申请号：US16745132

申请日：2020-01-16

Applicant: Seagate Technology LLC

Inventor： Riyan Alex Mendonsa ,  Martin Giles Blaber ,  Brett R. Herdendorf ,  Kevin A. Gomez

IPC: C23C16/455 ,  C23C16/48 ,  G11B13/08 ,  C23C16/46 ,  G11B5/31 ,  H01L21/67 ,  H01L21/02

Abstract: A system includes a chamber, a support structure disposed in the chamber, and one or more heads. The support structure is configured to support and position a substrate. The one or more heads includes an energy source coupled to a near-field transducer for providing localized energy towards the support structure at select locations within the chamber.

公开(公告)号：US10770106B1

公开(公告)日：2020-09-08

申请号：US16724569

申请日：2019-12-23

Applicant: Seagate Technology LLC

Inventor： Drew Michael Mader ,  Tim Rausch ,  Josh Ward Christensen

IPC: G11B5/02 ,  G11B7/126 ,  G11B5/40 ,  G11B5/012 ,  G11B5/455 ,  G11B11/105 ,  G11B11/00 ,  G11B5/60 ,  G11B20/18 ,  G11B7/1387 ,  G11B7/1263 ,  G11B7/1267 ,  G11B5/00

Abstract: A heat-assisted recording head is moved onto a ramp such that the recording head is thermally isolated from a moving disk. A heating device is activated on the recording head to cause the recording head to obtain a high temperature that is not obtainable when proximate to the moving disk. The recording head is moved over the moving disk such that the recording head reaches an operating temperature that is below the high temperature. One or more temperatures between the high temperature and the operational temperature are determined at which a laser of the recording head experiences mode-hopping. The one or more temperatures are stored and accessed by a controller to mitigate mode hopes during an operation of the recording head.

公开(公告)号：US10770097B2

公开(公告)日：2020-09-08

申请号：US15853213

申请日：2017-12-22

Applicant: Seagate Technology LLC

Inventor： Samuel Lewis Tanaka

IPC: G11B5/127 ,  H05B3/03 ,  H05B3/84 ,  H05B3/26 ,  G11B5/84 ,  G11B5/00

Abstract: An apparatus includes an electrode and a heating element attached to the electrode. A heat sink is between the electrode and the heating element. A mirror is between the heat sink and the heating element. An aperture reflector surrounds the mirror and the heating element.

公开(公告)号：US10761058B2

公开(公告)日：2020-09-01

申请号：US15886608

申请日：2018-02-01

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Thomas Young Chang ,  David S. Kuo ,  Kim Yang Lee ,  Koichi Wago

IPC: G01N27/447 ,  B01L3/00 ,  G01N33/487 ,  C12Q1/6869 ,  B82Y15/00 ,  B82Y30/00

Abstract: A DNA sequencing device, and related method, which include an electrode and a plurality of spaced apart alignment structures. The electrode defines an electrode gap, the electrode being operable to detect a change in tunneling current as a DNA strand passes through the electrode gap. The plurality of spaced apart alignment structures are arranged to position nucleotides of the DNA strand in a predetermined orientation as the DNA strand passes through the electrode gap.

公开(公告)号：US10756895B2

公开(公告)日：2020-08-25

申请号：US16165582

申请日：2018-10-19

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Timothy Canepa ,  Ramdas Kachare

IPC: G06F21/44 ,  H04L29/06 ,  H04L9/08 ,  H04L9/32 ,  G06F12/14

Abstract: Systems and methods for using encryption keys to manage data retention are described. In one embodiment, the systems and methods may include receiving data such as user data from a host of the storage drive, encrypting the data using an encryption key, writing the encrypted data to the storage drive, and retaining the encrypted data on the storage drive based at least in part on a validity of the encryption key.

公开(公告)号：US10752947B2

公开(公告)日：2020-08-25

申请号：US15886736

申请日：2018-02-01

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Thomas Young Chang ,  Philip L. Steiner ,  Kim Yang Lee ,  David S. Kuo

IPC: C12P19/34 ,  C12Q1/6869 ,  C40B40/06

Abstract: Apparatus and methods to identify nucleotides of a DNA strand. The method includes exposing the DNA strand to a first dye or peptide, attaching the first dye or peptide to a first type of nucleotide (A,T,C,G) of the DNA strand, the first dye or peptide changing a conductance of the first type of nucleotide to which the first dye or peptide is attached, and measuring a tunneling current signal for all nucleotides of the DNA strand, the changed conductance of the first type of nucleotide providing amplified tunneling current discrimination of the nucleotides of the DNA strand.

公开(公告)号：US10747678B2

公开(公告)日：2020-08-18

申请号：US15336667

申请日：2016-10-27

Applicant: Seagate Technology LLC

Inventor： Brian T. Edgar ,  Mark A. Gaertner ,  John Livdahl

IPC: G06F12/1009 ,  G06F12/02

Abstract: A data storage device includes a storage tier and a storage controller operably coupled to the storage tier and configured to be communicatively coupled to a host device. The storage controller includes a first memory operably coupled to the storage controller and configured to store a superseding data structure. The storage controller further includes a second memory operably coupled to the storage controller and configured to store a forward map configured to map a plurality of logical block addresses to physical locations on the storage tier. The storage controller further includes a sifting module configured to sift the forward map based on data contained in the superseding data structure. The storage controller further includes a compression module configured to compress the forward map to generate a compressed forward map.

公开(公告)号：US10747503B2

公开(公告)日：2020-08-18

申请号：US16589660

申请日：2019-10-01

Applicant: Seagate Technology LLC

Inventor： Li Hong Zhang ,  WenXiang Xie ,  Xiong Liu

IPC: G06F7/58 ,  G11B7/13

Abstract: A method includes detecting noise in a laser output of a heat assisted magnetic recording device. The noise is converted into an electrical signal including a numerical value. A least significant digit of the numerical value is selected. The least significant digit is concatenated with another least significant digit from another detecting of another noise in another laser output to form a number.