Patents Assigned to Seagate Technology LLC
  • Patent number: 11017128
    Abstract: Apparatus and method for transferring data between a processing circuit and a memory. In some embodiments, a data storage device has a main non-volatile memory (NVM) configured to store user data from a host device. A controller circuit is configured to direct transfers of the user data between the NVM and the host device. The controller circuit has a programmable processor and a secure data transfer circuit. The secure data transfer circuit executes memory access operations to transfer user data and control values between the processor and a local memory. A memory access operation includes receiving bits of a multi-bit control value on a multi-line bus from the processor, and activating a programmable switching circuit to randomly interconnect different ones of the multi-line bus to transpose the bits in the control value.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: May 25, 2021
    Assignee: Seagate Technology LLC
    Inventor: Timothy J. Courtney
  • Patent number: 11019754
    Abstract: A data storage system can be vigilant of the acoustic impedance between cooling features and a data storage device to prevent operational degradation in the data storage device as a result of cooling operations from the cooling features. One or more cooling feature may each be positioned on an opposite sides of an air plenum from a data storage device with each cooling feature connected to a cooling module configured to adjust a speed of the first cooling feature in response to a detected operational condition in the data storage device. The cooling features speed adjustment is executed independently to correct an acoustic and vibration disturbance interference in the data storage system.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: May 25, 2021
    Assignee: Seagate Technology LLC
    Inventor: Evgeny R. Kharisov
  • Patent number: 11016889
    Abstract: Method and apparatus for enhancing power cycle performance of a storage device, such as a solid-state drive (SSD). In some embodiments, map data that describe the contents of a non-volatile memory (NVM) are arranged as snapshots and intervening journal updates. During a scram interval in which the storage device transitions to a powered down condition, the snapshots and journal updates for primary segments with high client interest are updated prior to storage to the NVM. During a reinitialization interval in which the storage device transitions to a powered up condition, the updated primary segments are loaded, after which the storage device provides the client device with an operationally ready notification. Remaining secondary segments are updated and loaded after the notification. The primary segments are identified based on a detected workload from the client device. Configuration changes can further be made based on the detected workload.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: May 25, 2021
    Assignee: Seagate Technology LLC
    Inventors: Daniel John Benjamin, Ryan Charles Weidemann, Ryan James Goss, David W. Claude, Graham David Ferris
  • Patent number: 11016681
    Abstract: An apparatus may include a circuit configured to receive an input signal at an input and process the input signal using a set of channel parameters. The circuit may further determine an error metric for the processing of the input signal using the set of channel parameters, compare the error metric to a plurality of thresholds, and when the error metric matches one of the plurality of thresholds, adapt, using an adaptation algorithm, the set of channel parameters to produce an updated set of channel parameters for use by the circuit as the set of channel parameters in subsequent processing of the input signal, the adaptation of the set of channel parameters being based on a weight corresponding to the matching threshold of the plurality of thresholds.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: May 25, 2021
    Assignee: Seagate Technology LLC
    Inventors: Marcus Marrow, Jason Bellorado, Vincent Brendan Ashe, Zheng Wu
  • Patent number: 11016665
    Abstract: A data storage device that includes data storage media, with at least one of the data storage media having a plurality of embedded firmware modules. The data storage media include a non-volatile memory having different usage modes, with each different usage mode being associated with a different status of the data storage device, and each of the different usage modes having different space allocation configurations for data generated by the plurality of embedded firmware modules. A controller communicatively coupled to the non-volatile memory. The controller determines a change in the status of the data storage device and, in response to the change in the status of the data storage device, dynamically alters the usage mode of the non-volatile memory from a first one of the usage modes to a second one of the usage modes.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: May 25, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Abhay T. Kataria, Amruta Rameshchandra Inamdar
  • Patent number: 11017864
    Abstract: Method and apparatus for managing data in a non-volatile memory (NVM) of a storage device, such as a solid-state drive (SSD). An initial temperature is stored associated with the programming of data to memory cells in the NVM. A current temperature associated with the NVM is subsequently measured. At such time that a difference interval between the initial and current temperatures exceeds a selected threshold, a preemptive parametric adjustment operation is applied to the NVM. The operation may include a read voltage calibration, a read voltage increment adjustment, and/or a forced garbage collection operation. The operation results in a new set of read voltage set points for the data suitable for the current temperature, and is carried out independently of any pending read commands associated with the data. The initial temperature can be measured during the programming of the data, or measured during the most recent read voltage calibration operation.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: May 25, 2021
    Assignee: Seagate Technology LLC
    Inventors: Kurt Walter Getreuer, Darshana H. Mehta, Antoine Khoueir, Christopher Joseph Curl
  • Patent number: 11017819
    Abstract: The present disclosure relates to a data storage device interior components and/or data storage device housing components that include one or more solid-state deposition layers, and related methods of applying solid-state material to said components via solid-state deposition.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: May 25, 2021
    Assignee: Seagate Technology LLC
    Inventors: Jerome Coffey, Sam Severson, David Lapp
  • Patent number: 11019748
    Abstract: A system includes a drawer and a fan assembly. The drawer includes a mounting structure with a support surface and an aperture. The fan assembly extends through the aperture and includes a fan module and a top cover. The top cover is coupled to the support surface.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: May 25, 2021
    Assignee: Seagate Technology LLC
    Inventors: Vivekananda Avvaru, Shankar Gopalakrishna, Saju Cheeran Verghese Francis, Odie Killen
  • Patent number: 11011201
    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.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: May 18, 2021
    Assignee: Seagate Technology LLC
    Inventors: 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
  • Patent number: 11008481
    Abstract: A method comprises forming a first structured pattern having a first line width on a substrate. A polymer brush is deposited on the structured pattern, which is annealed a first time at a first temperature and then annealed a second time at a second temperature higher than the first temperature. A block copolymer is deposited on the structured pattern and polymer brush, and aligned first block and second block structures are formed on the structured pattern and polymer brush. The first block structures and portions of the polymer brush and the structured pattern positioned beneath the first block structures are removed, and the substrate between the second block structures is exposed. The second block structures are then removed to form a second structured pattern in the substrate having a second line width, the second line width being smaller than the first line width.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: May 18, 2021
    Assignee: Seagate Technology LLC
    Inventors: Xiaomin Yang, Austin Patrick Lane, Michael Joseph Maher, Gregory Blachut
  • Patent number: 11011203
    Abstract: A heat-assisted magnetic recording device includes a granular magnetic recording layer and a thermal absorption layer formed on top of the magnetic recording layer. The thermal absorption layer is patterned to include rows extending in a cross-track direction of the magnetic media, each adjacent pair of the rows being separated from one another by an insulating material.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: May 18, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Thomas Y. Chang, Philip L. Steiner, Paul M. Jones
  • Patent number: 11011189
    Abstract: A read channel is configured to obtain an analog readback waveform from a magnetic recording medium of a disk drive at a sampling rate of one sample per one written bit. A buffer is coupled the read channel. Circuitry is configured to inject a plurality of different phase offsets into the read channel for each of a plurality of revolutions of the medium. The circuitry is also configured to store, in a buffer, an amplitude of the readback waveform for each of the different phase offsets. The circuitry is further configured to generate an oversampled readback waveform using the amplitudes stored in the buffer.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: May 18, 2021
    Assignee: Seagate Technology LLC
    Inventors: Drew Michael Mader, Wenzhong Zhu
  • Patent number: 11011191
    Abstract: An apparatus comprises a slider having an air bearing surface (ABS), a leading edge, and a trailing edge opposing the leading edge. A writer having a write pole is situated at or near the ABS. A near-field transducer (NFT) is situated at or near the ABS and between the write pole and the leading edge of the slider. An optical waveguide is configured to couple light from a laser source to the NFT. A contact sensor is situated between the write pole and the trailing edge. The contact sensor comprises a first ABS section situated at or near the ABS, a second ABS section situated at or near the ABS and spaced apart from the first ABS in a cross-track direction by a gap, and a distal section extending away from the ABS and connecting the first ABS section with the second ABS section.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: May 18, 2021
    Assignee: Seagate Technology LLC
    Inventors: Erik Jon Hutchinson, Declan Macken, Manuel Charles Anaya-Dufresne
  • Patent number: 11005825
    Abstract: One or more networks each include a plurality of sensor nodes operable to communicate public data with each other. Each of the plurality of sensor nodes is operable to gather sensor node data and store the sensor node data locally on the sensor node. Duplicate portions of the sensor node data are distributed to the public data of others of the plurality of sensor nodes via the public data paths for backup storage. The system includes a host that is coupled to individually communicate private data with each of the plurality of sensor nodes. Each of the sensor nodes protects the private data from others of the sensor nodes using distributed key management to ensure distributed encryption.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: May 11, 2021
    Assignee: Seagate Technology LLC
    Inventors: Mehmet Fatih Erden, Walter R. Eppler, Robert D. Murphy, Greg D. Larrew
  • Patent number: 11004467
    Abstract: A data storage device can transition a functional data storage medium into a read only data surface. Data can be written to a data storage medium with a data writer of a transducing head prior to a security threat being identified. A write head of the transducing head is deactivated in response to the security threat by selecting a permanent deactivation mechanism.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: May 11, 2021
    Assignee: Seagate Technology LLC
    Inventor: Christopher Nicholas Allo
  • Patent number: 11003394
    Abstract: A data storage system can employ multiple concurrent domains with data storage devices each having a single data port. The data storage system may connect a number of hosts to a data storage device via a network controller, an expander, and an expander module with the data storage device having a single data port. A first data domain and a second data domain are each established from the network controller to the data storage device with the first data domain being independent of the second data domain. At least one illegal loop can be identified between the first data domain and the second data domain with the expander module and subsequently corrected with the expander as directed by the expander module.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: May 11, 2021
    Assignee: Seagate Technology LLC
    Inventor: Nicholas James Dance
  • Patent number: 11003580
    Abstract: Method and apparatus for managing data in a storage device, such as a solid-state drive (SSD). In some embodiments, write and read commands from a client device are placed into a command queue pending servicing to transfer data between the client device and a non-volatile memory (NVM). A write cache temporarily stores sets of writeback data pending transfer. A cache manager detects an overlap condition in which a subsequently received command at least partially overlaps a pending write command. In response, the cache manager enacts a change in caching policy that includes retention of the cached writeback data to aid in the servicing of the subsequently received command. The changes in caching policy can include an increase in the size of the write cache, delays in the writing of hot writeback data sets, the coalescing of different writeback data sets, cache hits using the cached writeback data, etc.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: May 11, 2021
    Assignee: Seagate Technology LLC
    Inventors: Ryan James Goss, Daniel John Benjamin, David W. Claude, Graham David Ferris, Ryan Charles Weidemann
  • Patent number: 11005663
    Abstract: Apparatus and method for managing data objects in a distributed data storage system, such as a cloud computing environment. In some embodiments, a data object is encrypted using a user encryption key to generate ciphertext. A first hash function is applied to the ciphertext and an audit encryption key to generate a first hash value. An audit value is formed by combining the ciphertext and the first hash value, and the audit value is locally encrypted and stored to non-volatile memory (NVM) of each of a plurality of storage nodes. An audit process is performed to confirm each of the encrypted replicas store identical copies of the ciphertext. This is carried out by decrypting the ciphertext and applying a second hash function to the ciphertext and the audit encryption key by each storage node to form a plurality of second hash values which are then compared by an audit processor.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: May 11, 2021
    Assignee: Seagate Technology LLC
    Inventors: Nino Wicaksono, Jeetandra Kella, Muhammad Jawad Alam Wahla
  • Patent number: 11005842
    Abstract: A method includes receiving a request from a host device to authenticate a device. The method further includes transmitting authenticating data to the host device. Responsive to successful authentication of the device, configuration interface and communication interface of the device is exposed to the host device. The method further includes processing commands from the host device after the device is successfully authenticated. Responsive to the processed commands, payload data is sent or received to or from the host device according to the communication interface.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: May 11, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Chandra Shaker Buddhavaram, Jean-Pierre Ruster
  • Patent number: 11004466
    Abstract: A recording head that includes a reader having a front end at a bearing surface of the recording head and a rear end behind the bearing surface. The reader has a non-rectangular shape with a front-end width that is less than an average width of the reader. A first bias element is positioned proximate to a first side of the reader, and a second bias element is positioned proximate to a second side of the reader. Each of the first and second bias elements has a bias level that is a function of a ratio of the front-end width to the average width of the reader.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: May 11, 2021
    Assignee: Seagate Technology LLC
    Inventors: Victor Sapozhnikov, Taras Grigorievich Pokhil, Mohammed Shariat Ullah Patwari, Yonghua Chen