Patents Assigned to Seagate
  • Modifying seek operations mid-seek
    Patent number: 11120825
    Abstract: Illustrative systems and methods disclosed herein may change or modify a seek during mid-seek for various reasons and may set seek speeds for various seeks to less than the maximum possible seek speed to, for example, facilitate seek target change or modifications mid-seek. For instance, the seek speeds for lower priority commands or commands at risk for deprioritization may be set to speeds less than the maximum possible seek speed.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: September 14, 2021
    Assignee: Seagate Technology LLC
    Inventors: Raye A. Sosseh, Brian Thomas Edgar, Josiah Natan Wernow, Paul Michael Wiggins
  • Delta information volumes to enable chained replication of data by uploading snapshots of data to cloud
    Patent number: 11119862
    Abstract: Method and apparatus for managing data in a distributed data storage system, such as but not limited to a cloud computing environment. In some embodiments, snapshots of a data set are uploaded from a source storage subsystem to a cloud store, along with intervening difference information volumes (DIVs). The DIVs are data structures that identify a set of updated data blocks that have been changed by the source storage subsystem between each successive pair of the snapshots. A reader subsystem requests and uses the latest DIV to request the latest set of changed data blocks from the cloud store, and uses the latest set of changed data blocks to update a previous snapshot to generate a copy of the most recent snapshot. The source and reader subsystems can comprise Internet of Things (IoT) devices, client devices, edge computing devices, etc. from different vendors and which utilize different protocols.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: September 14, 2021
    Assignee: Seagate Technology LLC
    Inventors: Douglas William Dewey, Ian Robert Davies, Kenneth F. Day, III
  • Read channel buffer management for higher throughput decoding
    Patent number: 11121729
    Abstract: An error recovery process provides for identifying a set of failed data blocks read from a storage medium during execution of a read command, populating sample buffers in a read channel with data of a first subset of the set of failed data blocks, and initiating an error recovery process on the data in the sample buffers. Responsive to successful recovery of one or more data blocks in the first subset, recovered data is released from the sample buffers and sample buffers locations previously-storing the recovered data are repopulated with data of a second subset of the set of failed data blocks. The error recovery process is then initiated on the data of the second subset of the failed data blocks while the error recovery process is ongoing with respect to data of the first subset of failed data blocks remaining in the sample buffers.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: September 14, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Deepak Sridhara, Jason Bellorado, Ara Patapoutian, Marcus Marrow
  • External indicators for adaptive in-field recalibration
    Patent number: 11119669
    Abstract: In accordance with one implementation, a method for adaptive in-field recalibration includes detecting a potential environmental disturbance for a first storage node in a mass storage system based on an indicator external to the first storage node, and initiating a recalibration of an operational parameter of the first storage node responsive to the detection.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: September 14, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Stephen S. Huh, Christopher R. Fulkerson
  • Recording head with transfer-printed laser diode unit formed of non-self-supporting layers
    Patent number: 11120830
    Abstract: A recording head includes a substrate, a read transducer, a waveguide core, and a near-field transducer at an end of the waveguide core proximate a media-facing surface. The recording head includes a magnetic write pole and coil. A laser diode unit with one or more non-self-supporting layers of crystalline material region is transfer printed between layers of the recording head.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: September 14, 2021
    Assignee: Seagate Technology LLC
    Inventors: Aidan Dominic Goggin, Mark Anthony Gubbins, Paula Frances McElhinney, Roger L. Hipwell, Jr., John Wolf
  • Stack cap with a non-magnetic layer including ferromagnetic elements
    Patent number: 11120933
    Abstract: A magnetoresistive sensor includes a free layer and a cap over the free layer. The cap includes an upper layer and an insertion layer between the upper layer and the free layer. The insertion layer includes a non-magnetic alloy formed of at least one refractory metal and at least one ferromagnetic metal.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: September 14, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Liwen Tan, Jae-Young Yi, Eric W. Singleton
  • Command overlap checking in a data storage device
    Patent number: 11113002
    Abstract: A data storage device includes a controller configured to recognize commands received from a host as single logical address (LA) commands or multi-LA commands. The data storage drive also includes a command overlap detection table having a plurality of records with each record configured to store multiple unrelated LAs associated with different single LA commands and configured to store multiple related LAs associated with a single multi-LA command.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: September 7, 2021
    Assignee: Seagate Technology LLC
    Inventor: Thomas V. Spencer
  • Magnetic devices with overcoat that includes a titanium oxynitride layer
    Patent number: 11114122
    Abstract: Described are magnetic recording heads that include an overcoat that includes a titanium oxynitride (TiON) layer.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: September 7, 2021
    Assignee: Seagate Technology LLC
    Inventors: Zhuoyuan Wu, Edwin F. Rejda, Richard T. Greenlee
  • Plural heat-sink layers for an On-Wafer Laser of a heat-assisted magnetic recording device
    Patent number: 11114120
    Abstract: An apparatus includes a substrate and a reader deposited on the substrate. A laser is formed on a non-self supporting structure and bonded to the substrate. A plurality of heat sink layers are deposited between the reader and the laser and configured to provide thermal coupling between the substrate and the laser and sink heat away from the laser. A waveguide is deposited proximate the laser. The waveguide is configured to communicate light from the laser to a near-field transducer that directs energy resulting from plasmonic excitation to a recording medium.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: September 7, 2021
    Assignee: Seagate Technology LLC
    Inventors: Helene Parwana Habibi, Daniela Diamare, Thomas Liam White, Gavin Lee Brinkley
  • DATA STORAGE SYSTEM WITH SUPPLEMENTAL PROCESSING BUS
    Publication number: 20210271623
    Abstract: A data storage system can employ at least one data storage device having a supplemental processing bus that connects a first controller to a second controller with the supplemental bus being exposed to an exterior surface of a housing. The second controller may be positioned on a portable computing component connected to the supplemental bus while the portable computing component is positioned external to the housing. The computing capabilities of the portable computing component are identified with the first controller to allow a supplementation strategy to be generated with the first controller in response to connection of the portable computing component to the supplemental bus. The supplementation strategy can then be executed by assigning at least one processing task from the first controller to the second controller.
    Type: Application
    Filed: April 16, 2021
    Publication date: September 2, 2021
    Applicant: Seagate Technology LLC
    Inventor: Christopher Nicholas Allo
  • Secure debug system for electronic devices
    Patent number: 11105850
    Abstract: Systems and methods for secure testing and debugging of electronic devices are described. In one embodiment, the systems and methods may include an electronic device that includes a control switch placed on a device test bus of the electronic device between a debugger external to the device and a debug interface on the device. In some cases, the device may include at least one register placed on the device test bus between the debugger and authentication logic of the electronic device.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: August 31, 2021
    Assignee: Seagate Technology LLC
    Inventor: Jon Trantham
  • Combining in-process reads to reduce die collisions
    Patent number: 11106390
    Abstract: Method and apparatus for managing data in a storage device, such as a solid-state drive (SSD). In some embodiments, a first read command from a command queue is forwarded to a non-volatile memory (NVM) to request retrieval of a first set of readback data. While the NVM initiates in-process execution of the first read command, an expanded read command is issued to the NVM. The expanded read command supercedes the first read command and requests an expanded set of readback data that includes the first set of readback data as well as a second set of readback data. The second set of readback data may be associated with a second read command in the command queue. The NVM transfers the expanded set of readback data to a read buffer responsive to the expanded read command. The first and second read commands may be client reads, background reads or both.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: August 31, 2021
    Assignee: Seagate Technology LLC
    Inventors: Ryan James Goss, Daniel John Benjamin, David W. Claude, Graham David Ferris, Ryan Charles Weidemann
  • Near field transducers including platinum group alloys
    Patent number: 11107496
    Abstract: Heat assisted magnetic recording (HAMR) devices that includes a near field transducer, the near field transducer including alloys of a first element selected from: platinum (Pt), palladium (Pd), rhodium (Rh), iridium (Ir), ruthenium (Ru), and osmium (Os); and a second element selected from; hafnium (Hf), niobium (Nb), tantalum (Ta), titanium (Ti), vanadium (V), and zirconium (Zr).
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: August 31, 2021
    Assignee: Seagate Technology LLC
    Inventors: Tong Zhao, Martin Blaber, Li Wan
  • Recording head with focusing structure
    Patent number: 11107497
    Abstract: A recording head includes a near-field transducer proximate a media-facing surface of the recording head and a waveguide that overlaps and delivers light to the near-field transducer. The recording head includes subwavelength-sized focusing mirror comprising first and second reflectors disposed on cross track sides of the near-field transducer. Each of the first and second reflectors is spaced apart from the media-facing surface by a distance, D, measured along an axis normal to the media-facing surface.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: August 31, 2021
    Assignee: Seagate Technology LLC
    Inventors: Ruoxi Yang, YongJun Zhao, Nan Zhou, Weibin Chen, Huaqing Yin, Michael Allen Seigler
  • Data storage component test socket opener
    Patent number: 11105847
    Abstract: An opener assembly for a data storage component testing system is disclosed. The opener assembly includes an actuator assembly with a first opener actuator and a body having a distal end, a proximal end, a first arm, and a second arm. The first and second arms extend between the proximal end and the distal end and define a spacing at the distal end. The first opener actuator is operatively coupled to the first and second arms and configured to actuate the actuator assembly between a closed position and an opened position.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: August 31, 2021
    Assignee: Seagate Technology LLC
    Inventors: Brett R. Herdendorf, Ronald E. Anderson
  • Retaining internal pressure in a data storage device in a vacuum
    Patent number: 11105703
    Abstract: An apparatus includes a test chamber and a pressure-application structure. The pressure-application structure is configured to apply a force on a device under test within the test chamber in response to a vacuum being drawn in the test chamber. The force has a magnitude that is proportional to a difference between an external pressure outside the test chamber and an internal pressure within the test chamber.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: August 31, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Christopher Byrne, Samuel Severson, Jason Delaney, John Rigsby
  • Materials for near field transducers and near field transducers containing same
    Patent number: 11107499
    Abstract: A device including a near field transducer, the near field transducer including gold (Au) and at least one other secondary atom, the at least one other secondary atom selected from: boron (B), bismuth (Bi), indium (In), sulfur (S), silicon (Si), tin (Sn), hafnium (Hf), niobium (Nb), manganese (Mn), antimony (Sb), tellurium (Te), carbon (C), nitrogen (N), and oxygen (O), and combinations thereof; erbium (Er), holmium (Ho), lutetium (Lu), praseodymium (Pr), scandium (Sc), uranium (U), zinc (Zn), and combinations thereof; and barium (Ba), chlorine (Cl), cesium (Cs), dysprosium (Dy), europium (Eu), fluorine (F), gadolinium (Gd), germanium (Ge), hydrogen (H), iodine (I), osmium (Os), phosphorus (P), rubidium (Rb), rhenium (Re), selenium (Se), samarium (Sm), terbium (Tb), thallium (Th), and combinations thereof.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: August 31, 2021
    Assignee: Seagate Technology LLC
    Inventors: Yuhang Cheng, Tong Zhao, Michael C. Kautzky, Ed F. Rejda, Kurt W. Wierman, Scott Franzen, Sethuraman Jayashankar, Sarbeswar Sahoo, Jie Gong, Michael Allen Seigler
  • Compact portable data storage device
    Patent number: 11099618
    Abstract: A portable data storage device includes at least one component that generates heat, an enclosure wall made of a first material and having a thermal conductivity and an exterior layer. The enclosure wall surrounds the at least one computer component and includes outer and inner boundaries. The exterior layer is made of a second material and has a thermal conductivity that is less than the thermal conductivity of the first material. The exterior layer is covers the outer boundary of the enclosure wall and includes an outer surface and an inner boundary. The outer boundary of the enclosure wall interfaces with the inner boundary of the exterior layer so that the outer surface of the exterior layer is in direct contact with the environment and the outer boundary of the enclosure wall is not. Heat is transferred to the environment at the outer surface of the exterior layer.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: August 24, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Michael Morgan, Ming-Hsueh Tsai
  • Heat-assisted magnetic recording device incorporating laser heater for improved laser stability
    Patent number: 11100951
    Abstract: An apparatus comprises a slider configured to facilitate heat assisted magnetic recording and a submount affixed to the slider. A laser unit is affixed to the submount and comprises a laser operable in a non-lasing state and a lasing state. A heater is embedded in the laser unit or the submount. The heater is configured to generate preheat for heating the laser during the non-lasing state and to generate steering heat for heating the laser during the lasing state.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: August 24, 2021
    Assignee: Seagate Technology LLC
    Inventors: James Gary Wessel, Roger L. Hipwell, Jr.
  • Distributed data security
    Patent number: 11100236
    Abstract: A method includes partitioning a received data chunk into first and second data sectors to be stored in respective first and second store units. The method also includes generating first and second random keys. The method further includes encrypting the first data sector with the second random key, and encrypting the second data sector with the first random key. The first and second random keys are encoded with channel codes. Thereafter, the first encoded random key is appended to the first encrypted data sector to obtain first appended data, and the second encoded random key is appended to the second encrypted data sector to obtain second appended data.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: August 24, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventor: Mehmet Fatih Erden