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    ANALOG DEMODULATION OF PHASE MODULATED CONTINUOUS WAVE (PMCW) LiDAR
    81.
    发明申请
    ANALOG DEMODULATION OF PHASE MODULATED CONTINUOUS WAVE (PMCW) LiDAR 有权

    公开(公告)号：US20230071722A1

    公开(公告)日：2023-03-09

    申请号：US17899126

    申请日：2022-08-30

    Applicant: Seagate Technology LLC

    Inventor： Daniel Joseph Klemme ,  Walter R. Eppler

    IPC: G01S7/4913 ,  G01S17/32 ,  G01S17/93

    Abstract: Method and apparatus for generating and processing pulses in a light detection and ranging (LiDAR) system. In some embodiments, an emitter outputs phase modulated continuous wave (PMCW) light sequences encoded with a selected encoding scheme such as a pseudo-random bit sequence (PRBS). An analog processing circuit processes reflected light sequences from a target illuminated by the PMCW light sequences by performing analog extraction of a doppler component and analog encoding correlation prior to digitalization of the received signal. The analog processing circuit can include a plurality of demodulation stages each multiplying the input signals by positive and negative magnitudes of a scalar value at times corresponding to signal transitions of different associated doppler clock frequencies. A threshold circuit applies suitable thresholding, after which the signals can be digitized by an analog-to-digital converter (ADC) for further processing in the digital domain to obtain range information associated with the detected target.

    LIDAR INTERFERENCE MITIGATION VIA MODULATED SPATIO-TEMPORAL SCANNING
    82.
    发明申请
    LIDAR INTERFERENCE MITIGATION VIA MODULATED SPATIO-TEMPORAL SCANNING 有权

    公开(公告)号：US20230062298A1

    公开(公告)日：2023-03-02

    申请号：US17823490

    申请日：2022-08-30

    Applicant: Seagate Technology LLC

    Inventor： Adam R. BUSH ,  Kevin A. GOMEZ ,  Eric James DAHLBERG

    IPC: G01S7/487 ,  G01S7/481 ,  G01S7/4861 ,  G01S7/486

    Abstract: Interference mitigation for a LiDAR system includes identifying a presence or absence of interference from a non-co-located light source in a sample of incident light received by a detector in the LiDAR system. In the absence of interference, a nominal set of reference values is used for one or more spacio-temporal scanning profile trajectory parameters. Scanner components of the LiDAR system are controlled using the nominal set of reference values. In the presence of interference, the nominal set of reference values is augmented to modify the spacio-temporal scanning profile trajectory parameters. Scanner components of the LiDAR system are controlled using the augmented set of reference values to avoid detection of and interference by the non-co-located light source.

    Preserving data integrity during controller failures
    84.
    发明授权
    Preserving data integrity during controller failures 有权

    公开(公告)号：US11593236B2

    公开(公告)日：2023-02-28

    申请号：US17736351

    申请日：2022-05-04

    Applicant: Seagate Technology LLC

    Inventor： Adithya Uligere Narasimhamurthy ,  Ritvik Viswanatha ,  Michael Barrell

    IPC: G06F11/20 ,  G06F12/0806

    Abstract: Systems and processes are disclosed to preserve data integrity during a storage controller failure. In some examples, a storage controller of an active-active controller configuration can back-up data and corresponding cache elements to allow a surviving controller to construct a correct state of a failed controller's write cache. To accomplish this, the systems and processes can implement a relative time stamp for the cache elements that allow the backed-up data to be merged on a block-by-block basis.

    Detecting shingled overwrite errors
    85.
    发明授权
    Detecting shingled overwrite errors 有权

    公开(公告)号：US11593190B1

    公开(公告)日：2023-02-28

    申请号：US15383127

    申请日：2016-12-19

    Applicant: Seagate Technology LLC

    Inventor： Xiong Liu ,  WeiQing Zhou ,  Quan Li ,  WenXiang Xie

    IPC: G06F11/07 ,  G11B20/12 ,  G11B20/18 ,  G06F12/0871 ,  G06F11/14

    Abstract: Systems and methods are disclosed for detecting shingled overwrite errors. When a read error is encountered when reading from shingled recording tracks, a processor may determine whether the read error is an error caused by shingled overwriting. The processor may determine whether the read error is caused by shingled overwriting by determining read signal quality of one or more sectors preceding the read error, such as based on a bit error count or bit error ratio (BER), and comparing the read signal quality to a threshold value. The processor may determine that the read error is caused by shingled overwriting when the read signal quality value is lower than the threshold.

    ANOMALY DETECTION IN STORAGE SYSTEMS
    88.
    发明申请
    ANOMALY DETECTION IN STORAGE SYSTEMS 有权

    公开(公告)号：US20230035666A1

    公开(公告)日：2023-02-02

    申请号：US17391463

    申请日：2021-08-02

    Applicant: Seagate Technology LLC

    Inventor： Anatolii Bilenko ,  Yuriy V. Umanets ,  Maksym Medvied

    IPC: G06F11/30 ,  G06F11/34 ,  G06F11/32 ,  G06N3/08

    Abstract: A method of preparing an input vector for a neural network includes capturing a plurality of information about a storage system, including workload types, a processing graph, and read/write histograms, and creating a correlation matrix from processing times of different levels of processes in a workload of the storage system. The input vector is prepared with a workload vector representing the workload types, a behavior matrix representing the processing graph, a read/write histogram shape matrix representing the read/write histograms, and the correlation matrix.

    AIR GAPPED DATA STORAGE DEVICES AND SYSTEMS
    89.
    发明申请
    AIR GAPPED DATA STORAGE DEVICES AND SYSTEMS 有权

    公开(公告)号：US20230032300A1

    公开(公告)日：2023-02-02

    申请号：US17387266

    申请日：2021-07-28

    Applicant: Seagate Technology LLC

    Inventor： Brett R. Herdendorf ,  Riyan Alex Mendonsa ,  Krishnan Subramanian ,  Kevin Lee Van Pelt

    IPC: G06F3/06 ,  G05B19/4155

    Abstract: A data storage blade includes a plurality of data storage cartridges, with each of the plurality of data storage cartridges comprising at least one data storage medium. The data storage blade also includes shared drive electronics (SDE) external to the plurality of data storage cartridges. The SDE is configured to control data access operations on different data storage cartridges of the plurality of data storage cartridges. The data storage blade further includes a controller-override mechanism activatable to disable communication between the SDE and the plurality of data storage cartridges.

    Artificial intelligence (AI) assisted anomaly detection of intrusion in storage systems
    90.
    发明授权
    Artificial intelligence (AI) assisted anomaly detection of intrusion in storage systems 有权

    公开(公告)号：US11561704B2

    公开(公告)日：2023-01-24

    申请号：US16729133

    申请日：2019-12-27

    Applicant: Seagate Technology LLC

    Inventor： Hock S. Lim ,  Yuen L. K. Ho ,  Asif H. Khan

    IPC: G06F3/06 ,  G06F21/55 ,  G06N20/00

    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.

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