公开(公告)号：US20220343962A1

公开(公告)日：2022-10-27

申请号：US17726864

申请日：2022-04-22

Applicant: Seagate Technology LLC

Inventor： Jon D. Trantham ,  Praveen Viraraghavan ,  John W. Dykes ,  Ian J. Gilbert ,  Sangita Shreedharan Kalarickal ,  Matthew J. Totin ,  Mohamad El-Batal ,  Darshana H. Mehta

IPC: G11C11/22 ,  G11C17/12 ,  G11C7/10

Abstract: A system on chip (SOC) integrated circuit device having an incorporated ferroelectric memory configured to be selectively refreshed, or not, depending on different operational modes. The ferroelectric memory is formed of an array of ferroelectric memory elements (FMEs) characterized as non-volatile, read-destructive semiconductor memory cells each having at least one ferroelectric layer. The FMEs can include FeRAM, FeFET or FTJ constructions. A read/write circuit writes data to the FMEs and subsequently reads back data from the FMEs responsive to respective write and read signals supplied by a processor circuit of the SOC. A refresh circuit is selectively enabled in a first normal mode to refresh the FMEs after a read operation, and is selectively disabled in a second exception mode so that the FMEs are not refreshed after a read operation. The FMEs can be used as a main memory, a cache, a buffer, an OTP, a keystore, etc.

公开(公告)号：US11335376B1

公开(公告)日：2022-05-17

申请号：US17161523

申请日：2021-01-28

Applicant: Seagate Technology LLC

Inventor： Riyan Alex Mendonsa ,  Brett R. Herdendorf ,  Jon D. Trantham ,  Kevin Lee Van Pelt

IPC: G11B5/09 ,  G11B21/12 ,  G11B17/022 ,  G11B5/012

Abstract: A data storage device includes a primary storage media, a drive storage controller electrically coupled to media recording electronics and a controller-override mechanism. The controller-override mechanism is selectively controllable by a user to override control actions of the drive storage controller to prevent the drive storage controller from altering the primary storage media at a time when the storage device is otherwise configured for nominal data storage operations.

公开(公告)号：US10996900B2

公开(公告)日：2021-05-04

申请号：US16284687

申请日：2019-02-25

Applicant: Seagate Technology LLC

Inventor： Riyan A. Mendonsa ,  Brett R. Herdendorf ,  Jon D. Trantham

IPC: G06F3/06 ,  G11B5/55

Abstract: An implementation of a system disclosed herein includes a control board including multiple cartridge slots and hardware for coupling each of the multiple cartridge slots to an associated storage cartridge. The system further includes multiple voice coil motor (VCM) actuator components mounted to the control board, each one of the multiple VCM actuator configured to contribute to an electromagnetic interaction that drives movement of an actuator arm within a storage cartridge coupled to one of the multiple cartridge slots.

公开(公告)号：US20210109971A1

公开(公告)日：2021-04-15

申请号：US16597911

申请日：2019-10-10

Applicant: Seagate Technology LLC

Inventor： Lijuan Zhong ,  Krishnan Subramanian ,  Mehmet Fatih Erden ,  Jon D. Trantham

IPC: G06F16/901 ,  G06N3/08

Abstract: Features are detected from a sensor signal via a deep-learning network or other feature engineering methods in an edge processing node. Machine-learned metadata is created that describes the features, and a hash is created with the machine-learned metadata. The sensor signal is stored as a content object at the edge processing node, the object being keyed with the hash at, the edge processing node.

公开(公告)号：US10861496B1

公开(公告)日：2020-12-08

申请号：US16451809

申请日：2019-06-25

Applicant: Seagate Technology LLC

Inventor： Riyan Alex Mendonsa ,  Jon D. Trantham

IPC: G11B33/00 ,  G11B20/10 ,  G11B5/02 ,  G06F3/06

Abstract: A system includes a system-on-a-chip integrated circuit and a preamplifier integrated circuit. The system-on-a-chip integrated circuit includes an interface configured to receive an analog sensor signal and a read/write channel configured to digitize the analog sensor signal. The preamplifier integrated circuit is communicatively coupled to the system-on-a-chip integrated circuit and is configured to amplify the analog sensor signal.

公开(公告)号：US10818318B2

公开(公告)日：2020-10-27

申请号：US16358255

申请日：2019-03-19

Applicant: Seagate Technology LLC

Inventor： Brett R. Herdendorf ,  Jon D. Trantham ,  Anil J. Reddy ,  Riyan Alex Mendonsa ,  Krishnan Subramanian

IPC: G11B15/68 ,  G11B20/10

Abstract: A data storage library includes a number of storage cartridges arranged in a rack accessed by a actuated media player. The actuated media player is adapted to move along a plane relative to a fixed subset of the storage cartridges in the rack to and to selectively couple to each storage cartridge of the fixed subset to facilitate selective read/write access.

公开(公告)号：US10802853B2

公开(公告)日：2020-10-13

申请号：US15378983

申请日：2016-12-14

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Jon D. Trantham ,  Robert John Warmka ,  Chiaming Yang ,  David B. Anderson ,  Bryan David Wyatt

IPC: G06F9/455 ,  G06F8/40 ,  G06F8/61 ,  G06F9/445

Abstract: A data storage drive that includes a data storage medium and drive control circuit communicatively coupled to the data storage medium. The data storage drive also includes embedded applet management circuitry that executes an application, installed in the data storage drive as one or more key-value objects, within a controlled environment of the data storage drive.

公开(公告)号：US10408674B2

公开(公告)日：2019-09-10

申请号：US16352243

申请日：2019-03-13

Applicant: Seagate Technology LLC

Inventor： James Dillon Kiely ,  John Charles Duda ,  Patrick Carl Fletcher ,  Andrei Dorobantu ,  Jon D. Trantham

IPC: G01J1/42 ,  G01K7/16

Abstract: An apparatus comprises a light source configured to generate light, and a modulator coupled to the light source and configured to modulate the light above a predetermined frequency. A slider is configured for heat-assisted magnetic recording and to receive the modulated light. A resistive sensor is integral to the slider and subject to heating by absorption of electromagnetic radiation and conduction of heat. Measuring circuitry is coupled to the resistive sensor and configured to measure a response of the resistive sensor due to absorbed electromagnetic radiation and not from the heat conduction. The measuring circuitry may further be configured to determine output optical power of the light source using the measured resistive sensor response.

公开(公告)号：US09947357B2

公开(公告)日：2018-04-17

申请号：US15086959

申请日：2016-03-31

Applicant: Seagate Technology LLC

Inventor： Tim Rausch ,  Jon D. Trantham ,  Jason Bryce Gadbois

IPC: G11B5/60

CPC classification number: G11B5/607 ,  G11B5/02 ,  G11B5/3977 ,  G11B5/4853

Abstract: A read/write head has a set of components that at least include: at least one clearance actuator; at least one read transducer configured to read from a magnetic recording medium; and at least one write transducer configured to write to the magnetic recording medium. A switch network is coupled to the set of components and configured to, in response to a control signal, couple a selected sub-combination of the components to a common set of signal lines. The coupling of the selected sub-combination facilitates operation in a selected mode of the read/write head.

公开(公告)号：US09799358B2

公开(公告)日：2017-10-24

申请号：US14037139

申请日：2013-09-25

Applicant: Seagate Technology LLC

Inventor： James Dillon Kiely ,  Jon D. Trantham

IPC: G11B21/02 ,  G11B5/41 ,  G11B5/40 ,  G11B5/455 ,  G11B5/60

CPC classification number: G11B5/41 ,  G11B5/40 ,  G11B5/455 ,  G11B5/607

Abstract: A heat generating component of a slider is energized at a predetermined frequency. The heat generating component changes a spacing between a medium and the slider. A temperature response proximate a media-facing surface of the slider is measured while the heating element is energized. Based on the measured temperature response, a determination is made as to whether the media-facing surface is contaminated. In response to determining that the media-facing surface is contaminated, remedial action is taken.