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公开(公告)号：US09971913B1
公开(公告)日：2018-05-15
申请号：US14928959
申请日：2015-10-30
Applicant: Seagate Technology LLC
Inventor： Ara Patapoutian , Rishi Ahuja , Jason Charles Jury , Raman C Venkataramani
Abstract: A circuit may be configured to adaptively combine two or more waveforms into a single waveform. The circuit can generate weighting factors based on received error signals, and can apply the weighting factors to the two or waveforms to be combined. In some examples, a circuit can be configured to receive input signals, receive error signals, generating a weighting coefficient based on at least some of the error signals, and determine an output signal based on the weighting coefficient and the input signals.
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公开(公告)号：US11757472B1
公开(公告)日：2023-09-12
申请号：US17744874
申请日：2022-05-16
Applicant: Seagate Technology LLC
Inventor： Ara Patapoutian , Jason Charles Jury , Deepak Sridhara , Jason Bellorado
CPC classification number: H03M13/2778 , G06F7/78 , H03M13/05
Abstract: A method includes encoding a sector of data to be written to a data storage device with a single error correcting code (ECC). The sector of data is divided into N individually readable and writeable portions, with N≥2. The individually readable and writeable portions of the sector of data are separated with a space between the portions of the sector of data in a pattern.
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公开(公告)号：US10068597B1
公开(公告)日：2018-09-04
申请号：US15873160
申请日：2018-01-17
Applicant: Seagate Technology LLC
Inventor： Jason Charles Jury , Steven Douglas Granz
Abstract: First tracks of a disk are read via a first read transducer. The first read transducer has a first crosstrack width and a first shield-to-shield spacing that are optimized to read a first track width and a first linear bit density of the first tracks. Second tracks interlaced between the first tracks are read via a second read transducer. The second read transducer has a second crosstrack width different from the first crosstrack width and second shield-to-shield spacing different than the first shield-to-shield spacing. The second crosstrack width and the second shield-to-shield spacing are optimized to read a second track width different from the first track width and a second linear bit density different from the first linear bit density.
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公开(公告)号：US09195860B1
公开(公告)日：2015-11-24
申请号：US14152972
申请日：2014-01-10
Applicant: Seagate Technology LLC
Inventor： Ara Patapoutian , Rishi Ahuja , Jason Charles Jury , Raman C Venkataramani
IPC: G06G7/16
Abstract: A circuit may be configured to adaptively combine two or more waveforms into a single waveform. The circuit can generate weighting factors based on received error signals, and can apply the weighting factors to the two or waveforms to be combined.
Abstract translation: 电路可以被配置为将两个或更多个波形自适应地组合成单个波形。 该电路可以基于接收的误差信号产生加权因子，并且可以将加权因子应用于要组合的两个或波形。
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公开(公告)号：US09013815B2
公开(公告)日：2015-04-21
申请号：US14133647
申请日：2013-12-19
Applicant: Seagate Technology LLC
Inventor： Jason Charles Jury , Xiaowei Wu , Pierre Asselin
CPC classification number: G11B20/1252
Abstract: A cluster size measurement method includes writing a first pattern of a first size of a first number of magnetic clusters. A second pattern of a second size of a second number of magnetic clusters is written, wherein the second plurality of clusters includes clusters of the first number of clusters and a switched cluster. A cluster size of the switched cluster is automatically determined by contrasting the first size and the second size.
Abstract translation: 集群尺寸测量方法包括写入第一数量的磁簇的第一尺寸的第一图案。 写入第二数量的磁簇的第二大小的第二模式，其中第二多个簇包括第一数量的簇和交换簇的簇。 通过对比第一大小和第二大小自动确定交换群集的群集大小。
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Patent Agency Ranking
公开(公告)号：US09928872B1
公开(公告)日：2018-03-27
申请号：US15674727
申请日：2017-08-11
Applicant: Seagate Technology LLC
Inventor： Jason Charles Jury
CPC classification number: G11B21/03 , G11B5/012 , G11B20/10009 , G11B20/10305 , G11B20/10388 , G11B20/12
Abstract: In a method, read signals from each of a plurality of read transducers of a data head are buffered for each of a plurality of cross-track positions of the head relative to a data track. The buffered read signals are processed to establish a quality metric for each of the read signals and at least one combination read signal comprising at least two of the read signals. A data recovery cross-track position and a reader configuration comprising one or more of the read transducers are identified based on the quality metrics. A data read operation is then performed with the data head in the data recovery cross-track position using the read signals from the identified reader configuration.
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公开(公告)号：US09928854B1
公开(公告)日：2018-03-27
申请号：US15586217
申请日：2017-05-03
Applicant: Seagate Technology LLC
Inventor： Jason Charles Jury , Marcus Marrow , Michael J Link , Jason Bellorado
CPC classification number: G11B5/012 , G06F11/0793 , G11B5/035 , G11B5/09 , G11B21/106 , G11B2005/0013
Abstract: An apparatus may include a circuit configured to generate a set of first ADC samples based on a first signal associated with a first read head position and a failed segment and to generate a set of second ADC samples based on a second signal associated with a second read head position and the failed segment. The circuit may then generate, by a MISO equalizer, a set of equalized ADC samples based on the set of first ADC samples and the set of second ADC samples.
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公开(公告)号：US20150089317A1
公开(公告)日：2015-03-26
申请号：US14032677
申请日：2013-09-20
Applicant: Seagate Technology LLC
Inventor： Ara Patapoutian , Deepak Sridhara , Zheng Wang , Jason Charles Jury
IPC: H03M13/23
CPC classification number: H03M13/353 , G11B20/1217 , G11B20/1833 , H03M13/1102 , H03M13/1515 , H03M13/152
Abstract: A storage device is configured to utilize different encoding and decoding schemes in reading and writing data to different regions of a storage device based on the position of the storage regions and/or component-specific physical characteristics of the regions. Each encoding scheme may include multiple different types of encoders selected based an optimization process for each region.
Abstract translation: 存储设备被配置为基于存储区域的位置和/或区域的组件特定物理特性来利用不同的编码和解码方案来将数据读取和写入存储设备的不同区域。 每个编码方案可以包括基于每个区域的优化处理选择的多种不同类型的编码器。
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公开(公告)号：US11817124B2
公开(公告)日：2023-11-14
申请号：US17542875
申请日：2021-12-06
Applicant: Seagate Technology LLC
Inventor： Ara Patapoutian , Jason Charles Jury
CPC classification number: G11B20/1876 , G11B20/1803 , G06F2211/109 , G11B7/094 , G11B19/041 , G11B20/1258 , G11B20/18 , G11B20/1816 , G11B2020/1222 , G11C29/42 , G11C29/52 , H03M13/3715 , H04L43/024
Abstract: A method of recovering data from one or more failed data sectors includes estimating a reader offset position from a first or a second read attempt of the one or more failed data sectors at a current set of channel parameters and basing the estimated reader offset position on, at least in part, a position error signal generated during the first or second read attempt. At least one read is performed on the one or more failed data sectors at the estimated reader offset position to obtain one or more samples. The one or more samples are processed to obtain a processed sample. Iterative outer code recovery is performed on the processed sample.
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公开(公告)号：US10255931B1
公开(公告)日：2019-04-09
申请号：US15912480
申请日：2018-03-05
Applicant: Seagate Technology LLC
Inventor： Jason Charles Jury , Marcus Marrow , Michael J Link , Jason Bellorado
Abstract: An apparatus may include a circuit configured to generate a set of first ADC samples based on a first signal associated with a first read head position and a failed segment and to generate a set of second ADC samples based on a second signal associated with a second read head position and the failed segment. The circuit may then generate, by a MISO equalizer, a set of equalized ADC samples based on the set of first ADC samples and the set of second ADC samples.
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