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公开(公告)号：US10699797B2
公开(公告)日：2020-06-30
申请号：US15964691
申请日：2018-04-27
Applicant: Seagate Technology LLC
Inventor： Ludovic Danjean , Abdelhakim Alhussien , Erich Franz Haratsch
Abstract: Systems and methods presented herein provide for testing degradation in a storage device. In one embodiment, a storage controller is operable to test individual portions of a first of the plurality of storage areas of the storage device by: analyzing individual portions of the first storage area; determining that one or more of the individual portions of the first storage area have failed; and retire the failed one or more portions of the first storage area. The storage controller is further operable to write to the first storage area using an error correction code (ECC), and to test the remaining portions of the first storage area to determine whether the first storage area should be retired in response to writing to the first storage area.
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公开(公告)号：US10699193B2
公开(公告)日：2020-06-30
申请号：US15833135
申请日：2017-12-06
Applicant: Seagate Technology LLC
Inventor： ChengYi Guo , Teck Khoon Lim , Teck Hoon Chua
Abstract: A method for testing and grading electronic devices includes receiving a set of testing data associated with an electronic device that is following a testing routine. Based on the set of testing data, the method includes computing a first performance metric of the electronic device by using a first artificial neural network and computing a second performance metric of the electronic device by using a second artificial neural network. Based on at least the first predicted performance metric and the second predicted performance metric, the method includes computing a grade for the electronic device.
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公开(公告)号：US10698658B2
公开(公告)日：2020-06-30
申请号：US15894116
申请日：2018-02-12
Applicant: Seagate Technology LLC
Inventor： Xiong Liu , Lihong Zhang , WenXiang Xie , Quan Li
IPC: G06F7/58
Abstract: Apparatuses and methods disclosed herein relate to detecting a signal generated by a spin torque oscillator (STO). The signal is outputted, wherein the signal includes a direct current (DC) component, a wide bandwidth noise component, and an STO oscillating radio frequency (RF) component. The signal is filtered, wherein the filtering removes the DC component and the STO oscillating RF component, leaving the wide bandwidth noise component. A value of the wide bandwidth noise component is converted into a binary value, and a bit from the binary value is selected and combined with another bit to form a random number.
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公开(公告)号：US10694007B1
公开(公告)日：2020-06-23
申请号：US16372225
申请日：2019-04-01
Applicant: Seagate Technology LLC
Inventor： Jason Vincent Bellorado , Marcus Marrow
Abstract: Systems and methods are disclosed for detection and mitigation of defects within a preamble portion of a signal, such as a data sector preamble recorded to a data storage medium. In certain embodiments, an apparatus may comprise a circuit configured to synchronize a sampling phase for sampling a signal pattern. The circuit may sample a preamble field of the signal pattern to obtain sample values, split the sample values into a plurality of groups, determine defect groups having samples corresponding to defects in the preamble field, remove the defect groups from the plurality of groups, and synchronize the sampling phase based on the plurality of groups.
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公开(公告)号：US10692542B2
公开(公告)日：2020-06-23
申请号：US16723618
申请日：2019-12-20
Applicant: Seagate Technology LLC
Inventor： Byung Seok Kwon , David Ellison
Abstract: A slider is provided with a conformal coating (e.g., an oxide) on the air-bearing surface (ABS) to provide a consistent surface energy to the ABS. The conformal coating may be formed by an atomic layer deposition (ALD) process. A consistent surface energy inhibits accumulation of contaminants on the slider ABS, such as at topographical transition areas.
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Patent Agency Ranking
公开(公告)号：US10692525B2
公开(公告)日：2020-06-23
申请号：US16136389
申请日：2018-09-20
Applicant: Seagate Technology LLC
Inventor： Aidan Dominic Goggin , Mark Anthony Gubbins , Kelly Elizabeth Callan , Reyad Mehfuz , Marcus B. Mooney , Fadi El Hallak , Paula Frances McElhinney
IPC: G11B7/126 , G11B11/105 , G11B5/48 , G11B5/00 , G11B7/1263 , G11B7/1267 , G11B5/60
Abstract: An apparatus includes a substrate. A laser is formed on a non-self supporting structure and bonded to the substrate. A waveguide is deposited proximate the laser. The waveguide is configured to communicate light from the laser to a near-field transducer that directs energy resulting from plasmonic excitation to a recording medium. A light detector is configured to detect an amount of light. At least one laser heater is disposed proximate the laser. A controller is configured to control current supplied to the at least one heater based on the detected amount of light.
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公开(公告)号：US10690697B1
公开(公告)日：2020-06-23
申请号：US16171735
申请日：2018-10-26
Applicant: Seagate Technology LLC
Inventor： Zhiyong Xiao , Gary Kunkel , Dan Dinh
Abstract: An apparatus and method for topographically characterizing a workpiece. The method includes scanning a first surface of a workpiece with a scanning probe at a first resolution to derive a first topographical image, and performing a refining operation on the first topographical image to obtain a true first topographical image. The method also includes scanning, with the scanning probe, a surface of interest of the workpiece, which is a sub-portion of the first surface, at a second resolution that is higher than the first resolution to derive a second topographical image. The second topographical image is scaled down to the first resolution. The method further includes performing a pattern recognition operation to substantially match the scaled-down second topographical image to a corresponding sub-portion of the true first topographical image. The matched sub-portion of the true first topographical image is employed to refine the second topographical image.
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公开(公告)号：US10679656B1
公开(公告)日：2020-06-09
申请号：US16402658
申请日：2019-05-03
Applicant: Seagate Technology LLC
Inventor： Jiaxi Lu , Matthew Aaron Carper , Abhik Rakshit
Abstract: Described are magnetic recording heads that include an air-bearing surface and that are designed to be useful or potentially useful in two or more different types of fluid atmospheres; also described are related methods of testing the magnetic recording heads and installing the magnetic recording heads in a hard disk drive, as well as hard disk drives that contain a magnetic recording head as described.
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公开(公告)号：US10678708B2
公开(公告)日：2020-06-09
申请号：US15890536
申请日：2018-02-07
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Francois-Xavier Hannedouche , Sylvain Sevamy
Abstract: Systems and methods for management of a RAID system of encrypted storage drives are described. In one embodiment, the system may include self-encrypting drives (SEDs), redundant array of independent disks (RAID) chips, a drive interface bridge connecting between one of the RAID chips and a machine host, and a drive command initiator communicatively coupled to the drive interface bridge. In some embodiments, the drive command initiator may be configured to configure the one or more RAID chips in pass-through mode, unlock at least one of the SEDs while the one or more RAID chips are configured in pass-through mode, and upon unlocking at least one of the SEDs, configure the one or more RAID chips to RAID mode and activate a mass storage functionality of the drive interface bridge.
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公开(公告)号：US20200174710A1
公开(公告)日：2020-06-04
申请号：US16786802
申请日：2020-02-10
Applicant: Seagate Technology LLC
Inventor： Phillip Raymond COLLINE , Thomas George WICKLUND
IPC: G06F3/06
Abstract: A storage controller is provided. The storage controller includes circuitry configured to utilize a format command to change a storage volume coupled to the storage controller from a first format to a second format and memory configured to store a data structure for first and second format indications for the storage volume. The storage controller determines if a selected band is initialized to the second format, and if the selected band is not initialized to the second format, the storage controller initializes the selected band to the second format and updates the data structure to indicate the selected band is initialized to the second format.
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