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公开(公告)号：US10354699B1
公开(公告)日：2019-07-16
申请号：US16000581
申请日：2018-06-05
Applicant: Seagate Technology LLC
Inventor： Shankar Gopalakrishna , Anil Koyad Choyikkunnil , Saju Cheeran Verghese Francis , Naveen Kumar
Abstract: A storage chassis may be adapted, or configured, to secure a plurality of carrierless devices (e.g., without the use of a carrier or drive tray) received thereby. The storage chassis may include a base, a first drive wall coupled to and extending from the base, and a second drive wall coupled to and extending from the base. Each of the first and second drive walls may include a top edge spaced away from a bottom portion of the base. The base, the first drive wall, and the second drive wall may define a row of drive slots and each drive slot may be configured to receive a carrierless device. Further, the storage chassis may include a plurality of locking units configured to extend across corresponding drive slots between the top edge of the first drive wall and the top edge of the second drive wall.
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公开(公告)号：US10354684B1
公开(公告)日：2019-07-16
申请号：US15973673
申请日：2018-05-08
Applicant: Seagate Technology LLC
Inventor： Declan Macken , Daniel W. Olson
Abstract: A data storage device can employ one or more transducing heads that have a data reader and data writer each connected to a substrate of the transducing head. The substrate can be electrified with a predetermined surface charge by a charge circuit of the transducing head to maintain, or alter, a head-media spacing.
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公开(公告)号：US20190214056A1
公开(公告)日：2019-07-11
申请号：US16352464
申请日：2019-03-13
Applicant: Seagate Technology LLC
Inventor： Gray Daniel Milligan
IPC: G11B33/08
CPC classification number: G11B33/08
Abstract: An enclosure may be secured to an enclosure frame by a fastener that continuously extends through a first aperture of the enclosure and a second aperture of an isolator. The isolator may contact the first aperture, enclosure frame, and fastener. The second aperture can be shaped to dampen vibration frequencies between the enclosure frame and the enclosure.
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公开(公告)号：US20190207748A1
公开(公告)日：2019-07-04
申请号：US15858214
申请日：2017-12-29
Applicant: Seagate Technology LLC
Inventor： Timothy John Courtney
CPC classification number: H04L9/0637 , H04L9/14 , H04L9/30 , H04L9/3247
Abstract: A storage device includes a storage media storing one or more blockchain data structures. The storage device receives objects via payloads and determines whether the objects satisfy a blockchain storage condition. The blockchain storage condition may be based on a type of the object. If the blockchain storage condition is satisfied by the object, then the object is cryptographically signed by a key associated with the storage device and stored in one or more blockchain data structures managed by the storage device. The cryptographically signed object is broadcast to one or more additional storage devices.
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365.发明授权公开(公告)号：US10341115B2
公开(公告)日：2019-07-02
申请号：US15248738
申请日：2016-08-26
Applicant: Seagate Technology LLC
Inventor： William Erik Anderson , Jiangnan Lin , Xiong Liu , Quan Li
Abstract: Apparatus and method for data security in a data storage device. In some embodiments, an alternating pattern is written to a magnetic recording medium as a sequence of symbols at a selected clock rate. A repeatable magnetic signature is generated by reading the alternating pattern from the medium, the magnetic signature having relatively weak entropy at boundaries of the symbols. A multi-bit digital sequence is extracted from the repeatable magnetic signature, the digital sequence having relatively strong entropy. The digital sequence is stored in a separate memory coupled to the medium. Access to data stored on the medium is authenticated responsive to the digital sequence stored in the separate memory.
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Patent Agency Ranking
公开(公告)号：US10339969B2
公开(公告)日：2019-07-02
申请号：US16048886
申请日：2018-07-30
Applicant: Seagate Technology LLC
Inventor： Edmun Chian Song Seng , Det Hau Wu , Lin Nah Lim , Jose Mari Corral Toribio , Luh Chyuan Lau , Utt Heng Kan , Meng Suan June Lee
Abstract: A method involves determining bit aspect ratios for interlaced tracks written to a magnetic recording medium. The interlaced tracks include top tracks that are written partially overlapping with bottom tracks. Isolated test tracks are written at first different bit aspect ratios to determine a top bit aspect ratio that achieves a first target areal density for the isolated test tracks. Test tracks are written at second different bit aspect ratios to determine a bottom bit aspect ratio that achieves a second target areal density for the test tracks. Top test tracks of the test tracks are written at the top bit aspect ratio. The top and bottom bit aspect ratios are selected to subsequently write partially-overlapping tracks on the magnetic recording medium.
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公开(公告)号：US10339448B2
公开(公告)日：2019-07-02
申请号：US15401409
申请日：2017-01-09
Applicant: Seagate Technology LLC
Inventor： ChengYi Guo , TeckKhoon Lim , TeckHoon Chua
Abstract: A method includes receiving a first set of testing data associated with a first group of electronic devices. The first set of testing data is generated during a tuning test applying a first range of testing parameters. The method further includes receiving a second set of testing data associated with the first group of electronic devices. Further, the method includes determining, based on the first set of testing data and the second set of testing data, a second range of testing parameters that is less than the first range of testing parameters. The method includes testing a second group of electronic devices using a tuning test applying the second range of testing parameters.
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公开(公告)号：US10332549B1
公开(公告)日：2019-06-25
申请号：US15973013
申请日：2018-05-07
Applicant: Seagate Technology LLC
Inventor： Erik J Hutchinson , Paul J Sonda , Lihong Zhang , Xiong Liu
Abstract: A slider includes a reader element, a bottom shield located adjacent to the reader element, a top shield located adjacent to the reader element, a heater, a substrate located below the reader element, the top shield, the bottom shield and the heater, and a cap substantially surrounding the reader element, the top shield, the bottom shield and the heater. The cap includes a base coat layer comprising a first electrically insulative cap material adjoining the substrate, and an overcoat layer comprising a second electrically insulative cap material adjoining the base coat layer opposite the substrate. The base coat layer and the overcoat layer meet at an interface located at or below the top shield. The first and second electrically insulative cap materials are different.
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公开(公告)号：US20190189151A1
公开(公告)日：2019-06-20
申请号：US15848312
申请日：2017-12-20
Applicant: Seagate Technology LLC
IPC: G11B5/48
CPC classification number: G11B5/4826 , G11B5/483 , G11B5/6005
Abstract: A slider adhesion system can be practiced in a data storage device with a flexure suspended from a load beam and a slider mounted to a gimbal tongue of the flexure. The slider can be aligned with an aperture of the gimbal tongue and attached to an adhesion feature of the gimbal tongue with an adhesive layer. The adhesion feature may consist of a plurality of cantilevered tabs extending into the aperture of the gimbal tongue.
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公开(公告)号：US20190188156A1
公开(公告)日：2019-06-20
申请号：US15846562
申请日：2017-12-19
Applicant: Seagate Technology LLC
Inventor： Kishore Kaniyar Sampathkumar , Vipin Kumar Verma
IPC: G06F12/128 , G06F12/0871
CPC classification number: G06F12/128 , G06F12/0871 , G06F2212/604 , G06F2212/621
Abstract: Implementations described herein provide a storage system including a cache, such as a solid-state cache or other relatively higher speed memory cache, and a disc array or relatively higher capacity mass data store. As the storage system receives write requests from a host device, the data of the write requests is initially written to the cache. Eventually, such data is committed to the mass data store in a flushing process. A flushing manager selects data blocks from the cache to flush to the mass data store. The flushing manager selects a sequence of data blocks that are contiguously stored on the mass data store such as to increase performance for I/O operations in the mass data store. The flushing manager utilizes a data structure, such as a binary search tree, to identify the contiguous data blocks to flush.
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