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公开(公告)号：US10110165B2
公开(公告)日：2018-10-23
申请号：US15276802
申请日：2016-09-27
Applicant: Seagate Technology LLC
Inventor： Bin Lu
Abstract: An apparatus includes a spin torque oscillator, a sensor, and a processing unit. The spin torque oscillator is configured to receive a current and to generate a microwave output signal. The sensor is configured to detect the microwave output signal and to detect changes to frequency of the detected microwave output signal responsive to changes in an external magnetic field. The processing unit is configured to receive a sensed signal from the sensor. The processing unit is further configured to process the sensed signal and the changes to the frequency to determine magnitude and direction associated with the external magnetic field.
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462.发明授权公开(公告)号：US10109303B2
公开(公告)日：2018-10-23
申请号：US15707355
申请日：2017-09-18
Applicant: SEAGATE TECHNOLOGY LLC
Inventor： Justin Glen Brons , Tong Zhao , Xiaoyue Huang , Michael C. Kautzky
Abstract: A device that includes a near field transducer (NFT); at least one cladding layer adjacent the NFT; and a carbon interlayer positioned between the NFT and the at least one cladding layer.
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公开(公告)号：US10108481B1
公开(公告)日：2018-10-23
申请号：US15047490
申请日：2016-02-18
Applicant: Seagate Technology LLC
Inventor： Abhay T Kataria , Mark A Gaertner
Abstract: Systems and methods are disclosed to perform early termination error recovery at a data storage device. A data storage device may be configured to perform error recovery operations in response to encountering an error while executing a host command, and terminate the error recovery operations prior to completion based on an error recovery time limit. Based on early termination of the error recovery operations, the storage device can add a storage location corresponding to the error to a scan list of storage locations on which to perform additional error recovery operations. In some embodiments, the host may set the error recovery time limit.
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公开(公告)号：US10096335B2
公开(公告)日：2018-10-09
申请号：US15004059
申请日：2016-01-22
Applicant: Seagate Technology LLC
Inventor： Yukiko Kubota
Abstract: A data device may have at least a magnetic lamination with a thermal retention structure deposited on a substrate and configured to maintain a predetermined temperature for a predetermined amount of time. Such predetermined temperature and amount of time may allow for the growth of a magnetic layer with a predetermined magnetic anisotropy.
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公开(公告)号：US20180287796A1
公开(公告)日：2018-10-04
申请号：US15474578
申请日：2017-03-30
Applicant: Seagate Technology LLC
Inventor： Michael E. Peper , Ajaz M. Siraj , Timothy J. Courtney
Abstract: A network resource and a user device include secure connection applications that share one or more keys and a key selection criterion. A communication is received from the user utilizing a key selected from the one or more keys. The network resource selects a key based on the key selection criterion. If the keys match, then the user device is authorized and the user is allowed to access data of the network resource. The keys may further be selected and used to encrypt and decrypt data. Different key selections provide security to communications.
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Patent Agency Ranking
公开(公告)号：US10090011B2
公开(公告)日：2018-10-02
申请号：US14716148
申请日：2015-05-19
Applicant: Seagate Technology LLC
Inventor： Tim Rausch , Tatsuya Shimizu , Wai Yeun Lai , Kai Chiu Cheung
Abstract: A heater power of a heat-assisted magnetic recording head is set to an initial power to induce an initial head-medium clearance. For a plurality of iterations, a heater power at an optimum laser power is determined that achieve a target clearance. If differences in the heater power and optimum laser power between the two subsequent iterations are below a threshold, the iterations are stopped and the heater power and the optimum laser power for one of the two subsequent iterations is used as an operational heater power and laser power for the heat-assisted magnetic recording head.
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公开(公告)号：US10090008B2
公开(公告)日：2018-10-02
申请号：US15631372
申请日：2017-06-23
Applicant: Seagate Technology LLC
Inventor： Zhiguo Ge , Shaun E. McKinlay , Eric W. Singleton , LiWen Tan , Jae Young Yi
IPC: G11B5/39
Abstract: Implementations described and claimed herein include a reader structure, comprising a first reader, including a sensor stack and a top shield structure, the top shield structure comprises a synthetic antiferromagnetic shield (SAF) structure, including a reference layer including at least a layer of NiFe and an impurity additive, an RKKY coupling layer RKKY coupling layer (e.g., Ru layer), and a pinned layer. In another implementation, the RL of the SAF shield structure of a first reader includes at least a layer of amorphous magnetic material. Yet, in another implementation, the SAF shield structure includes an insertion layer of amorphous magnetic material under the SAF shield RL, within the SAF shield RL or between the SAF shield RL and SAF shield Ru.
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公开(公告)号：US10074385B2
公开(公告)日：2018-09-11
申请号：US15589702
申请日：2017-05-08
Applicant: Seagate Technology LLC
Inventor： Robert J. German , David A. Hartman , Michael T. Brady
CPC classification number: G11B5/09 , G11B20/10018 , G11B20/10037 , G11B20/1816 , G11B20/1883 , G11B20/1889 , G11B2020/183 , G11B2020/1896 , G11B2220/20 , G11B2220/21 , H05K7/02
Abstract: A method comprises creating calibration data using a first control circuitry of an apparatus, replacing the first control circuitry with a second control circuitry in the apparatus, and operating the apparatus with the second control circuitry using the calibration data. As an example, the apparatus may be a disc drive. The second control circuitry may be substantially similar to the first control circuitry such that calibration measurements using the first control circuitry are applicable to the second control circuitry. The first control circuitry may be included in a circuit board that is replaced with a second circuit board including the second control circuitry. In an exemplary embodiment, the second circuit board may include different and/or additional components relative to the first circuit board, such as integrated video inputs and/or video control circuitry.
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公开(公告)号：US20180253240A1
公开(公告)日：2018-09-06
申请号：US15938262
申请日：2018-03-28
Applicant: Seagate Technology LLC
Inventor： Abdel Hakim Alhussien , Alex Tang , Leonid Baryudin , Erich Franz Haratsch
CPC classification number: G06F3/0619 , G06F3/0625 , G06F3/065 , G06F3/0659 , G06F3/0679 , G06F12/0246 , G06F12/0253 , G06F2212/702
Abstract: Systems and methods presented herein provide for open block handling of an SSD. In one embodiment, an SSD includes a buffer, and an MLC flash device. The SSD also includes a controller operable to write data in the buffer based on an Input/Output (I/O) request (e.g., from a host), to begin copying the data from the buffer to a block of the MLC flash device, to copy a portion of the data associated with open word lines of the block to another location in the buffer after a power cycle, and to update a lookup table for the copied portion of the data with the other location so that the copied portion of the data can be accessed via a subsequent I/O request.
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公开(公告)号：US10069653B1
公开(公告)日：2018-09-04
申请号：US15594140
申请日：2017-05-12
Applicant: Seagate Technology LLC
Inventor： Belkacem Derras
IPC: H04L25/03
Abstract: An equalizer and an equalization method. The method includes receiving a data signal over a channel. The method further includes equalizing the data signal, by a blind partial response equalizer circuit, to provide an equalized output of the data signal. An estimation of partial response equalizer taps employed to determine the equalized output, by the blind partial response equalizer circuit, is carried out independently of true channel input symbols and detected symbols corresponding to the data signal.
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