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公开(公告)号：US20220201884A1
公开(公告)日：2022-06-23
申请号：US17129500
申请日：2020-12-21
Applicant: Seagate Technology LLC
Inventor： Brett Herdendorf , Riyan Mendonsa , Krishnan Subramanian
IPC: H05K5/02
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.
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2.发明授权公开(公告)号：US10482908B2
公开(公告)日：2019-11-19
申请号：US16193189
申请日：2018-11-16
Applicant: Seagate Technology LLC
Inventor： Riyan Mendonsa , Jon D. Trantham , James Dillon Kiely , Peng Li , Joshua Ward Christensen
IPC: G11B11/105 , G11B5/455 , G11B5/60 , G11B5/00 , G11B7/126
Abstract: An apparatus comprises a laser diode configured to generate light during a write operation. A slider comprises a near-field transducer (NFT) and an optical waveguide. The slider is configured for heat-assisted magnetic recording and to communicate the light to the NFT via the waveguide. A writer heater of the slider is configured to receive power during the write operation. A thermal sensor is situated at or near an air bearing surface of the slider. The thermal sensor is configured to produce a sensor signal in response to sensing back-heating from the medium while the NFT generates heat during a write operation. Circuitry, coupled to the thermal sensor, is configured to compare the sensor signal to a threshold and generate an output signal indicative of degradation of NFT performance in response to the sensor signal exceeding the threshold.
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公开(公告)号：US10332557B1
公开(公告)日：2019-06-25
申请号：US16130451
申请日：2018-09-13
Applicant: Seagate Technology LLC
Inventor： Riyan Mendonsa , Puskal Prasad Pokharel , Walter R. Eppler
Abstract: A servo sector on a disk is read via first and second readers that both span two or more user data tracks. The servo sector has a crosstrack width that spans the two or more user data tracks. The first reader provides a first signal based on detecting a total longitudinal field of the servo sector. The second reader provides a second signal based on detecting a total perpendicular field of the servo sector. A position error of the first and second readers is detected using. A value of the first signal can be used to detect a position error, detect a track-to-track phase error, and/or detect a Gray code error of a track ID field of the servo sector.
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4.发明申请公开(公告)号：US20190103132A1
公开(公告)日：2019-04-04
申请号：US16193189
申请日：2018-11-16
Applicant: Seagate Technology LLC
Inventor： Riyan Mendonsa , Jon D. Trantham , James Dillon Kiely , Peng Li , Joshua Ward Christensen
Abstract: An apparatus comprises a laser diode configured to generate light during a write operation. A slider comprises a near-field transducer (NFT) and an optical waveguide. The slider is configured for heat-assisted magnetic recording and to communicate the light to the NFT via the waveguide. A writer heater of the slider is configured to receive power during the write operation. A thermal sensor is situated at or near an air bearing surface of the slider. The thermal sensor is configured to produce a sensor signal in response to sensing back-heating from the medium while the NFT generates heat during a write operation. Circuitry, coupled to the thermal sensor, is configured to compare the sensor signal to a threshold and generate an output signal indicative of degradation of NFT performance in response to the sensor signal exceeding the threshold.
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公开(公告)号：US11367464B2
公开(公告)日：2022-06-21
申请号：US17069424
申请日：2020-10-13
Applicant: Seagate Technology LLC
Inventor： Brett Herdendorf , Riyan Mendonsa , Krishnan Subramanian
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, the 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 motor configured to move the movable carriage within the housing to enable the movable carriage to communicatively couple the set of data storage devices held by the particular data storage magazine to the host device.
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Patent Agency Ranking
公开(公告)号：US20220122637A1
公开(公告)日：2022-04-21
申请号：US17072930
申请日：2020-10-16
Applicant: Seagate Technology LLC
Inventor： Riyan Mendonsa , Brett Herdendorf , Krishnan Subramanian , Jon Trantham
IPC: G11B19/28
Abstract: An apparatus includes a housing, a data storage magazine configured to hold a plurality of data storage devices, and a movable carriage disposed within the housing that is configured to selectively couple the data storage devices to a host device. The data storage magazine includes a set of magazine signal paths configured to provide signals to the plurality of data storage devices. The movable carriage includes a set of carriage signal paths configured to provide signals to the plurality of data storage devices. The apparatus includes a controller configured to power the plurality of data storage devices by selectively routing the signals via the set of magazine signal paths or the set of carriage signal paths.
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公开(公告)号：US10147454B1
公开(公告)日：2018-12-04
申请号：US15594812
申请日：2017-05-15
Applicant: Seagate Technology LLC
Inventor： Riyan Mendonsa , Jon D. Trantham , James Dillon Kiely , Peng Li , Joshua Ward Christensen
Abstract: An apparatus comprises a laser diode configured to generate light during a write operation. A slider comprises a near-field transducer (NFT) and an optical waveguide. The slider is configured for heat-assisted magnetic recording and to communicate the light to the NFT via the waveguide. A writer heater of the slider is configured to receive power during the write operation. A thermal sensor is situated at or near an air bearing surface of the slider. The thermal sensor is configured to produce a sensor signal in response to sensing back-heating from the medium while the NFT generates heat during a write operation. Circuitry, coupled to the thermal sensor, is configured to compare the sensor signal to a threshold and generate an output signal indicative of degradation of NFT performance in response to the sensor signal exceeding the threshold.
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8.发明申请SERVO TRACKING USING A SINGLE SERVO WRITING PASS PER TRACK FOR MULTI SENSORS 有权SERVO跟踪使用单个服务器写入每个跟踪多个传感器公开(公告)号：US20150332719A1
公开(公告)日：2015-11-19
申请号：US14276504
申请日：2014-05-13
Applicant: Seagate Technology LLC
Inventor： Riyan Mendonsa , Puskal Prasad Pokharel
IPC: G11B5/596
CPC classification number: G11B5/59655 , G11B5/09 , G11B5/5526 , G11B5/5543 , G11B5/59627 , G11B11/10578 , G11B17/0402
Abstract: At least a portion of a first servo mark is read using a first read head during a rotation of a disk, the rotation comprising no more than 360 degrees. At least a portion of a second servo mark is read using a second read head during the rotation of the disk. Tracking positions of the first read head and the second read head are determined during the rotation based on reading the first servo mark and the second servo mark.
Abstract translation: 在盘的旋转期间，使用第一读取头读取第一伺服标记的至少一部分，旋转包括不超过360度。 在盘旋转期间，使用第二读头读取第二伺服标记的至少一部分。 基于读取第一伺服标记和第二伺服标记，在旋转期间确定第一读取头和第二读取头的跟踪位置。
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公开(公告)号：US11570919B2
公开(公告)日：2023-01-31
申请号：US17129500
申请日：2020-12-21
Applicant: Seagate Technology LLC
Inventor： Brett Herdendorf , Riyan Mendonsa , Krishnan Subramanian
IPC: H05K5/02
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.
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公开(公告)号：US20210082467A1
公开(公告)日：2021-03-18
申请号：US17069424
申请日：2020-10-13
Applicant: Seagate Technology LLC
Inventor： Brett Herdendorf , Riyan Mendonsa , Krishnan Subramanian
IPC: G11B17/22
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, the 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 motor configured to move the movable carriage within the housing to enable the movable carriage to communicatively couple the set of data storage devices held by the particular data storage magazine to the host device
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