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公开(公告)号:US11514950B2
公开(公告)日:2022-11-29
申请号:US17193215
申请日:2021-03-05
Applicant: Seagate Technology LLC
Inventor: Wei Leng Tee , Chee Kwong Cheng , Samuel E. Severson , S Selvaruban
Abstract: A hard disk drive includes a base deck with a floor portion and a side wall portion. The floor portion extends between an upper surface and a bottom surface, and the side wall portion extends from the floor portion. A top cover is coupled to the base deck and includes a ceiling portion and a wall portion. The hard disk drive includes a weld that directly couples the wall portion of the top cover to the floor portion of the base deck.
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112.
公开(公告)号:US11513879B2
公开(公告)日:2022-11-29
申请号:US16427502
申请日:2019-05-31
Applicant: Seagate Technology LLC
Inventor: Darshana H. Mehta , Antoine Khoueir
Abstract: Weak erase detection and mitigation techniques are provided that detect permanent failures in solid-state storage devices. One exemplary method comprises obtaining an erase fail bits metric for a solid-state storage device; and detecting a permanent failure in at least a portion of the solid-state storage device causing weak erase failure mode by comparing the erase fail bit metric to a predefined fail bits threshold. In at least one embodiment, the method also comprises mitigating for the permanent failure causing the weak erase failure mode for one or more cells of the solid-state storage device. The mitigating for the permanent failure comprises, for example, changing a status of the one or more cells to a defective state and/or a retired state. The detection of the permanent failure causing the weak erase failure mode comprises, for example, detecting the weak erase failure mode without an erase failure.
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公开(公告)号:US11496287B2
公开(公告)日:2022-11-08
申请号:US16996270
申请日:2020-08-18
Applicant: Seagate Technology LLC
Inventor: Vipin Singh Sehrawat , Hamza Jeljeli
Abstract: A method of improving data security or privacy in a computing environment includes providing a group identifier value to at least a first user of one or more users and associating a first pseudonym with the first user. The method further includes encrypting a first data set according to a private key and marking the encrypted first data set according to the group identifier and the first pseudonym. The method also includes performing a first operation on the encrypted first data set and transforming the encrypted first data set into an encrypted second data set according to the first operation performed and the first pseudonym, decrypting the encrypted second data set using the private key, and analyzing the decrypted second data set.
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公开(公告)号:US11495253B1
公开(公告)日:2022-11-08
申请号:US16193104
申请日:2018-11-16
Applicant: Seagate Technology LLC
Inventor: Ravishankar Ajjanagadde Shivarama , Bradley J. Ver Meer
Abstract: A data storage system may utilize a gimbal test system to find open circuits and short circuits in a head gimbal assembly. The gimbal test system can have a gimbal flexure suspended between a load beam and a data storage medium with a flex circuit physically attached to the gimbal flexure to electrically connect a transducing head to a controller. The flex circuit can be tested with a test via that continuously extends through the flex circuit to a probe portion and a test pad located on an air bearing side of the gimbal flexure. The probe portion can be backed by the gimbal flexure along a plane perpendicular to a recording surface of the data storage medium.
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115.
公开(公告)号:US11494081B2
公开(公告)日:2022-11-08
申请号:US17066566
申请日:2020-10-09
Applicant: Seagate Technology LLC
Inventor: Sining Wu
IPC: G06F3/06 , G06F11/34 , H04L67/1097 , H04L67/568
Abstract: During operation of a data center, telemetry data is gathered that is indicative of performance of a storage system. The data center includes a middleware client that abstracts and optimizes storage commands for an application operating in the data center. Via the middleware client, a change in the application's use of the storage system is determined. Responsive to the change in the application, a change in the storage system is determined that will result in an improvement in storage performance for the application. The change to the storage system is applied via the middleware client to affect subsequent access of the storage system by the application.
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公开(公告)号:US11493499B1
公开(公告)日:2022-11-08
申请号:US16175223
申请日:2018-10-30
Applicant: Seagate Technology LLC
Inventor: Raman Venkataramani , William Radich
IPC: G01N27/447 , G01N27/327 , G01N33/487 , B82Y15/00 , G06K9/62
Abstract: Systems and methods are disclosed for performing event timing detection for DNA sequencing. In certain embodiments, a method may comprise generating a signal based on a DNA strand passed through a nanopore sensor, sampling the signal to generate a plurality of sample values, and detecting one or more event boundaries based on the sample values, an event representing a movement of a single DNA base of the DNA strand through the nanopore sensor. Detecting the one or more event boundaries may include segmenting the plurality of sample values into multiple events to calculate an optimal total score, assigning an event value to a selected event from the multiple events based on sample values of the selected event, and providing the event value to a base caller to determine a sequence of DNA bases.
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公开(公告)号:US20220350738A1
公开(公告)日:2022-11-03
申请号:US17242643
申请日:2021-04-28
Applicant: Seagate Technology LLC
Inventor: Xiong Liu , Li Hong Zhang
IPC: G06F12/0802 , G06F1/20 , H05K7/20
Abstract: A method includes receiving a write command including data to be stored and a logical block address associated with the data. The method includes selecting, from a pre-defined plurality of cooling zones of a data storage chassis, a cooling zone in which to store the data. The method further includes writing the data to a data storage device in the cooling zone.
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公开(公告)号:US20220335970A1
公开(公告)日:2022-10-20
申请号:US17712513
申请日:2022-04-04
Applicant: Seagate Technology LLC
Inventor: Riyan Alex Mendonsa , Brett R. Herdendorf , Krishnan Subramanian
Abstract: In one aspect, a data storage device includes a disc, an arm, a head, a linear driver, and an elevator. The disc has a read/write surface defining an x-y plane. The arm has a head end that is movable relative to the disc. The head is configured to interact with the read/write surface. The linear driver is configured to move the arm along a substantially straight line in the x-y plane. The elevator is configured to move the arm in a z direction. In another aspect, rather than a linear driver, the data storage device includes a rotary actuator and a pivot actuator. The arm includes a first portion and a load beam. The rotary actuator is configured to move the first portion about a first pivot axis; the pivot actuator is configured to move the load beam about a second pivot axis relative to the first portion.
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公开(公告)号:US20220335166A1
公开(公告)日:2022-10-20
申请号:US17232380
申请日:2021-04-16
Applicant: Seagate Technology LLC
Inventor: Riyan Alex Mendonsa , Hongtao Zhu , Brett R. Herdendorf , Jon D. Trantham , Krishnan Subramanian
Abstract: A data storage chassis includes a plurality of data storage cartridges, and printed circuit board assembly (PCBA) electronics selectively connectable to one or more of the plurality of data storage cartridges. The data storage chassis also includes a wireless interface controller communicatively coupled to the PCBA electronics. The wireless interface controller facilitates wireless communication of data between the data storage chassis and a host using at least one frequency in a range of frequencies including fifth-generation (5G), millimeter, and sub-millimeter frequency ranges.
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公开(公告)号:US20220319543A1
公开(公告)日:2022-10-06
申请号:US17657404
申请日:2022-03-31
Applicant: Seagate Technology LLC
Inventor: Anil Kumar Puri , Venancio Calero Vila , Evangelos Atmatzakis , Aji Baby , Paula Frances McElhinney , Beverley Rutherford McConnell , Marcus Benedict Mooney , Mark Gubbins
Abstract: A heat-assisted magnetic recording head comprises a near-field transducer (NFT). The NFT comprises a thermally-stabilized plasmonic alloy, wherein the thermally-stabilized plasmonic alloy comprises a plasmonic metal and at least one alloying metal.
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