Patents Assigned to Seagate Technologies LLC
  • Transfer-printed near-field transducer and heat sink
    Patent number: 11587581
    Abstract: A near-field transducer or heat sink is formed via a first process. The near-field transducer or heat sink is transfer-printed to a read/write head via a second process.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: February 21, 2023
    Assignee: Seagate Technology LLC
    Inventors: Mark Gubbins, Roger L. Hipwell, Jr., Marcus B. Mooney, Mark Ostrowski, Tong Zhao, Michael J. Hardy, Michael Christopher Kautzky, Neil Zuckerman, Declan Macken, Francis A. McGinnity
  • Optical switches
    Patent number: 11588302
    Abstract: Exemplary methods and apparatus may provide optical gates and optical switches using such optical gates. Each optical gate may include a semiconductor optical amplifier that is placed in a substrate. The semiconductor optical amplifier may be coupled to input and output couplers to receive and selectively output optical signals into and out of the substrate.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: February 21, 2023
    Assignee: Seagate Technology LLC
    Inventors: Mark A. Gubbins, Marcus B. Mooney, Aidan D. Goggin, Paula F. McElhinney, Debra A. McNeill, Fadi El Hallak, Brendan Lafferty
  • Flexible desiccant tape
    Patent number: 11587596
    Abstract: A hard disk drive includes a base deck and a cover. The cover is coupled to the base deck to create an enclosure. The hard disk drive also includes tape that covers at least a portion of the cover and the base deck. The tape includes an adhesive layer, which includes an adhesive material and a moisture-absorbent material.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: February 21, 2023
    Assignee: Seagate Technology LLC
    Inventors: Chee Yin Chan, Wei Leng Tee, Than Zaw Myint
  • Data storage layouts
    Patent number: 11579771
    Abstract: A composite layout to store one or more extents of a data object in a first storage system and one or more extents of the data object in a second, different storage system. The first storage system may be configured for the efficient storage of small chunks of data such as, e.g., chunks of data small than the addressable block size of the storage devices used by the storage systems.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: February 14, 2023
    Assignee: Seagate Technology LLC
    Inventors: John Michael Bent, Nikita Danilov, Kenneth K. Claffey, Raj Bahadur Das
  • Tsunami detection system with data storage devices in autonomous underwater vehicles
    Patent number: 11579320
    Abstract: A method of underwater tsunami detection includes detecting a trigger event using disruption of at least one of a plurality of hard disk drives (HDDs), each different one of the plurality of HDDs in a different one of a plurality of autonomous underwater vehicles (AUVs). A time and location of each of the at least one HDD for the trigger event is logged. Based on at least one of the HDD disruptions, times, and locations of the at least one HDD of the plurality of HDDs, a size, strength, and direction of a tsunami caused by the trigger event is determined. Information regarding the tsunami is transmitted to a monitoring station.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: February 14, 2023
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventor: Charles Donly
  • Recovering timing information from DNA encoded data
    Patent number: 11580413
    Abstract: Systems and methods for timing recovery in DNA storage systems is described. In one embodiment, the present systems and methods include generating a unique pattern of DNA bases and use the unique pattern for a phase-locked loop (PLL) field of a data layout, generating a multidimensional mapping, configuring the multidimensional mapping to include one or more prohibited sequences of DNA bases, identifying a prohibited sequence from the multidimensional mapping and use the prohibited sequence for one or more synch-mark (SM) fields of the data layout, prohibiting a User Data field from using any of the prohibited sequences of DNA bases when converting binary data to DNA bases, identifying random insertion and/or deletion of DNA bases in the User Data field, and repairing the random insertion and/or deletion of DNA bases in the User Data field.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: February 14, 2023
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventor: Mehmet Fatih Erden
  • Automated and intelligent data channel optimizers with sensitivity assessment
    Patent number: 11580042
    Abstract: Data channel parameter optimization with intelligent selection of initial data channel conditions and optimization algorithm hyperparameters for use of a black box optimizer to optimize one or more data channel parameters. It is currently identified that the initial data channel condition affects the ability of a black box optimizer to optimize data channel parameters. In turn, by use of an intelligent agent (e.g., employing artificial intelligence or machine learning) to iteratively select optimized initial data channel conditions, the optimization of the data channel may be improved. Moreover, the sensitivity of the data channel parameters may be determined, which allows for identification of a subset of data channel parameters that are varied in an optimization approach. This may result in improved performance of the optimization without sacrificing optimized performance of the data channel.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: February 14, 2023
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventor: Sayan Ghosal
  • LIDAR scan profile parameterization
    Patent number: 11573299
    Abstract: A method includes detecting an object using a first light scan profile and, in response to detecting the object, using a second light scan profile with increased resolution in a region of interest relative to the first scan profile. The second light scan profile is based, at least in part, on a width of the region of interest, a number of scanlines for the region of interest, and an angular offset to the region of interest.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: February 7, 2023
    Assignee: Seagate Technology LLC
    Inventor: Eric Dahlberg
  • Preserving aggregation using homomorphic encryption and trusted execution environment, secure against malicious aggregator
    Patent number: 11575501
    Abstract: A method includes providing a public encryption key and a seed to a party and receiving a first encrypted data set encrypted using the public encryption key and marked by the party with a first mark based on the seed. The method also includes aggregating the first encrypted data set into an aggregated data set at an aggregator and receiving an indication that a first operation associated with the party has been performed on the aggregated data set. In response to the receiving, updating the first encrypted data set of the aggregated data set by updating the first mark to a second mark according to the first operation, generating a verification encrypted data set according to at least the second mark and at least the corresponding first operation, verifying the aggregated data set by comparing the updated first encrypted data set and the verification encrypted data set.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: February 7, 2023
    Assignee: Seagate Technology LLC
    Inventors: Hamza Jeljeli, Saravanan Nagarajan
  • Optical power sensor for a heat-assisted magnetic recording slider
    Patent number: 11574648
    Abstract: An apparatus comprises a slider configured for heat-assisted magnetic recording comprising an air bearing surface (ABS). The slider comprises a write pole at or near the ABS, and a near-field transducer (NFT) at or near the ABS and proximate the write pole. A main waveguide is configured to receive light from a laser source and communicate the light to the NFT. An optical power sensor comprises a tap waveguide optically coupled to the main waveguide and comprising a first end and an opposing second end. The optical power sensor also comprises a bolometer optically coupled to the tap waveguide and configured to receive a portion of the light extracted from the main waveguide by the tap waveguide.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: February 7, 2023
    Assignee: Seagate Technology LLC
    Inventors: Chubing Peng, Vivek Krishnamurthy, Nils Jan Gokemeijer
  • Data center storage availability architecture using rack-level network fabric
    Patent number: 11567834
    Abstract: Operations are monitored that involve a plurality of servers coupled to a plurality of data storage enclosures via a rack-level, storage networking fabric. The servers are operable to provide data storage services utilizing the data storage enclosures via a network. The data storage enclosures each have one or more data storage devices. The servers and the data storage enclosures are mounted within a data center rack. A failed unit determined that includes a failed one of the servers or a failed one of the data storage devices within a selected one of the data storage enclosures. A replacement is found for the failed unit within the data center rack, and the replacement is established for the failed unit within the data center rack. The establishment of the replacement involves establishing a new connection via the storage networking fabric.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: January 31, 2023
    Assignee: Seagate Technology LLC
    Inventors: John Michael Bent, Ujjwal Lanjewar, Bikrant Kumar Singh, Mohamad El-Batal
  • Data storage system including movable carriage and physical locking mechanism
    Patent number: 11570919
    Abstract: An apparatus with a housing which stores a plurality of data storage magazines where each data storage magazine includes a plurality of data storage devices. The housing includes a movable carriage configured to selectively couple a set of data storage devices held by a particular data storage magazine to a host device. The housing also includes a physical locking mechanism configured to selectively prevent data storage devices from coupling to the host device.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: January 31, 2023
    Assignee: SEAGATE TECHNOLOGY, LLC
    Inventors: Brett Herdendorf, Riyan Mendonsa, Krishnan Subramanian
  • Provisional authentication of a new device added to an existing trust group
    Patent number: 11569995
    Abstract: Apparatus and method for managing devices within a trust boundary of a computer network. In some embodiments, a trust manager circuit uses a first registration authority to authenticate a plurality of processing devices to form a trust group. A new processing device is subsequently added to the group. The trust manager circuit uses a different, second registration authority to provisionally authenticate the new processing device in response to an unavailability of the first registration authority, and grants provisional rights to the new processing device. Once the first registration authority is once again available, the trust manager performs a full authentication of the new processing device and grants full rights to the device.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: January 31, 2023
    Assignee: Seagate Technology LLC
    Inventors: Corey Hill, Dieter Schnabel
  • Read offset calibration for error recovery
    Patent number: 11568895
    Abstract: A method includes determining an error after attempting to read, via a first read transducer and a second read transducer, a data sector in a first data track. The method further includes calculating a weight ratio associated with the data sector and determining a read offset direction of the data sector based, at least in part, on the calculated weight ratio.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: January 31, 2023
    Assignee: Seagate Technology LLC
    Inventors: Ara Patapoutian, Zheng Wang, Jason Bellorado, William M. Radich
  • Artificial intelligence (AI) assisted anomaly detection of intrusion in storage systems
    Patent number: 11561704
    Abstract: Artificial intelligence (AI) anomaly monitoring in a storage system. The AI anomaly monitoring may include writing commands into a log jointly with the execution of the commands on storage media of a drive. The log includes information regarding the operation of the drive including, at least, the commands. In turn, each drive in the storage system may include an AI processor core that may access the log and apply an AI analysis to the log to monitor for an anomaly regarding the operation of the drive. As each drive in the storage system may use the AI process core to detect anomalies locally to the drive, the computational and network resources needed to employ the AI monitoring may be reduced.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: January 24, 2023
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Hock S. Lim, Yuen L. K. Ho, Asif H. Khan
  • Multi-sector read offset recovery
    Patent number: 11562767
    Abstract: An integrated circuit includes a read/write channel and a servo controller. The read/write channel is configured to: determine, in connection with a first path, respective read errors associated with N number of the data sectors; estimate respective offset positions of the N number of the data sectors; and generate a second path based, at least in part, on the respective estimated offset positions. The servo controller is configured to cause adjustment of a position of a read transducer based on the second path.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: January 24, 2023
    Assignee: Seagate Technology LLC
    Inventors: Ara Patapoutian, Jason Bellorado, Zheng Wang, William M. Radich
  • Read offset calibration for error recovery
    Patent number: 11557319
    Abstract: A hard disk drive includes a magnetic recording medium comprising data sectors along a data track, a read head arranged to read data from the data sectors, and an integrated circuit. The integrated circuit includes circuitry programmed to detect a read error associated with a first of the data sectors and continue to read data from the data sectors after the detection of the read error.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: January 17, 2023
    Assignee: Seagate Technology LLC
    Inventors: Zheng Wang, Ara Patapoutian, Jason Bellorado, William M. Radich
  • Modular data storage systems
    Patent number: 11550370
    Abstract: A system includes a data shuttle with rows of data storage devices, which are communicatively coupled to a shared printed circuit board assembly. Each row includes multiple data storage devices. The printed circuit board assembly is configured to communicatively couple to a first controller to enable storing data to the data storage devices and to communicatively coupled to a second controller to enable transferring data from the data storage devices.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 10, 2023
    Assignee: Seagate Technology LLC
    Inventors: Charles Morris, Kevin Van Pelt, Lon Stevens
  • Adaptive fault prediction analysis of computing components
    Patent number: 11550647
    Abstract: Systems and methods for adaptive fault prediction analysis are described. In one embodiment, the system includes one or more computing components, and one or more hardware controllers. In some embodiments, the storage system includes a storage drive. At least one of the one or more hardware controllers is configured to analyze one or more tolerance limits of a first computing component among the plurality of computing components; calculate a failure metric of the first computing component based at least in part on the analysis of the one or more tolerance limits of the first computing component; analyze sensor data from the first computing component in real time; and update the failure metric based at least in part on the analyzing of the sensor data.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: January 10, 2023
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Deepak Nayak, Hemant Mohan
  • Rotating ramp with retraction capability for a disk drive
    Patent number: 11545181
    Abstract: A data storage system include a disk drive having a rotating ramp assembly that may be moved between an engaged and disengaged position. The rotating ramp assembly may include a ramp extension that is not disposed in overlapping relation to a data storage disk location in the drive when in the disengaged position. However, in the engaged position, the ramp extension may overhang a portion of the data storage disk location. In turn, the head extension may include a ramp surface that allows a head assembly to move to a head parking surface when the rotating ramp assembly is in the engaged position. IN turn, the rotating ramp assembly may be rotated while maintaining the head assembly on the head parking surface, which may be arcuate and extend about at least a portion of the rotating ramp assembly.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: January 3, 2023
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Brett R. Herdendorf, Riyan Alex Mendonsa, Krishnan Subramanian