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公开(公告)号：US20220027056A1
公开(公告)日：2022-01-27
申请号：US16935527
申请日：2020-07-22
Applicant: Seagate Technology LLC
Inventor： Jian Qiang , Jose Mari Toribio , Teck Khoon Lim , Wenxiang Xie , Xiong Liu
Abstract: An adjacent track interference (ATI) metric is determined for each of a plurality of regions of a single surface of a magnetic disk. Based on the ATI metrics, each of the regions is assigned a region-specific directed offline scan (DOS) criterion, at least two of the DOS criteria being different from one another. Based on a write count of a track within one of the regions satisfying the associated region-specific DOS criterion, a DOS remediation of the track is performed.
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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：US11360671B2
公开(公告)日：2022-06-14
申请号：US16935527
申请日：2020-07-22
Applicant: Seagate Technology LLC
Inventor： Jian Qiang , Jose Mari Toribio , Teck Khoon Lim , Wenxiang Xie , Xiong Liu
Abstract: An adjacent track interference (ATI) metric is determined for each of a plurality of regions of a single surface of a magnetic disk. Based on the ATI metrics, each of the regions is assigned a region-specific directed offline scan (DOS) criterion, at least two of the DOS criteria being different from one another. Based on a write count of a track within one of the regions satisfying the associated region-specific DOS criterion, a DOS remediation of the track is performed.
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Patent Agency Ranking
公开(公告)号：US09607633B1
公开(公告)日：2017-03-28
申请号：US15091945
申请日：2016-04-06
Applicant: Seagate Technology LLC
Inventor： Jose Mari Corral Toribio , Song Wee Teo , Teck Khoon Lim
CPC classification number: G11B20/182 , G11B5/012 , G11B20/1217 , G11B2020/1238 , G11B2020/1242 , G11B2020/1292
Abstract: Method and apparatus for positioning shingled magnetic recording (SMR) tracks on a rotatable data storage medium. In some embodiments, a first band of partially overlapping tracks is written the medium at a first track pitch. An adjacent, second band of partially overlapping tracks is written to the medium at the first track pitch. The second band has a first written track at a second track pitch with respect to a last written track in the first band. The second track pitch is determined in response to an error rate established for a test track using an adjacent track written at the first track pitch.
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公开(公告)号：US10290319B1
公开(公告)日：2019-05-14
申请号：US16058819
申请日：2018-08-08
Applicant: Seagate Technology LLC
Inventor： Antonia Tsoukatos , Tim Rausch , Mehmet Fatih Erden , Benjamin W Parish , Prasanna Manja Ramakrishna , Morovat Bryan Tayefeh , Sai Sian Hon , ChengYi Guo , Teck Khoon Lim , Song Wee Teo
Abstract: A method for performing a flaw scan test on a hard disk drive is disclosed. The hard disk drive includes a magnetic recording medium and spindle motor associated with a predetermined rated speed. The method includes writing a test pattern to the magnetic recording medium while operating the spindle motor at a speed greater than the predetermined rated speed. The method also includes reading the test pattern at the greater speed and detecting flaws in response to reading the test pattern.
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公开(公告)号：US09552846B1
公开(公告)日：2017-01-24
申请号：US15141178
申请日：2016-04-28
Applicant: Seagate Technology LLC
Inventor： Teck Khoon Lim
CPC classification number: G11B27/36 , G11B19/048 , G11B20/1816
Abstract: A data storage device can be tested while spinning at a variety of different speeds. Data may be written to a data sector with a transducing head while at least one disk of a data storage device spins about a spindle at a default speed. One or more tests can subsequently be executed on the disk by reading servo data stored on the disk while the disk spins at a test speed that is greater than the default speed.
Abstract translation: 可以在以各种不同速度旋转的同时测试数据存储设备。 数据可以用转换头写入数据扇区，而数据存储设备的至少一个盘以默认速度旋转主轴。 随后，当磁盘以大于默认速度的测试速度旋转时，通过读取存储在磁盘上的伺服数据，可以在磁盘上执行一个或多个测试。
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公开(公告)号：US20190171940A1
公开(公告)日：2019-06-06
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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8.发明授权公开(公告)号：US10311905B1
公开(公告)日：2019-06-04
申请号：US15937261
申请日：2018-03-27
Applicant: Seagate Technology LLC
Inventor： ChengYi Guo , Sheng Yuan Lin , Teck Khoon Lim , Teck Hoon Chua
Abstract: A method is disclosed for establishing a fly height parameter for a hard disc drive. The method includes receiving a set of testing data associated with the hard disc drive and subjecting the hard disc drive to a fly-height test at a first, nominal temperature to generate fly-height data. Based on the set of testing data and the fly-height data, the method includes predicting the hard disc drive's fly-height data for a fly-height test at a second temperature different from the first, nominal temperature. The method further includes establishing the fly-height parameter for the hard disc drive in response to the fly-height data and the predicted fly-height data.
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