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61. 发明授权

US09378763B1 Track offset compensation in shingled recording 有权
标题翻译：轨道偏移补偿在带状记录
公开(公告)号：US09378763B1
公开(公告)日：2016-06-28
申请号：US14026724
申请日：2013-09-13
申请人： Seagate Technology LLC
发明人： Hwajun Kim , Hojoong Choi , Seong Yong Yoon
IPC分类号： G11B27/36 , G11B5/56 , G11B5/02 , G11B5/58 , G11B5/012 , G11B5/54 , G11B5/596
CPC分类号： G11B5/596 , G11B5/012 , G11B5/02 , G11B5/54 , G11B5/58 , G11B5/59627 , G11B27/36
摘要： Systems and methods are disclosed for positioning of a reader element in a data storage device employing shingled recording. In an embodiment, an apparatus may comprise a processor configured to receive a read command to retrieve data from a data storage medium having data stored in a shingled manner where at least one track is partially overlapped by an adjacent track, and retrieve the data by adjusting a position of a read element according to a track offset compensation value based on a measured parameter. In another embodiment, a method may comprise determining a track offset compensation value for a first area of a data storage medium based on a measured parameter for the area, adjusting a position of a read head based on the track offset compensation value, and reading data from the first area using the read head.
摘要翻译：公开了用于将读取器元件定位在采用带状闪烁记录的数据存储装置中的系统和方法。在一个实施例中，装置可以包括处理器，其被配置为接收读取命令以从数据存储介质检索数据，所述数据存储介质具有以至少一个轨道被相邻轨道部分重叠的带有阻尼的方式存储的数据，并且通过调整基于测量参数的根据磁道偏移补偿值的读取元素的位置。在另一个实施例中，一种方法可以包括基于该区域的测量参数确定数据存储介质的第一区域的磁道偏移补偿值，基于轨道偏移补偿值来调整读取磁头的位置，以及读取数据从第一个区域使用读头。

62. 发明授权

US09373356B2 Magnetic recording and reproducing device and magnetic recording and reproducing method 有权
标题翻译：磁记录和再现装置以及磁记录和再现方法
公开(公告)号：US09373356B2
公开(公告)日：2016-06-21
申请号：US14887998
申请日：2015-10-20
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kenichiro Yamada , Masayuki Takagishi , Tomoyuki Maeda , Yousuke Isowaki , Naoyuki Narita , Shuichi Murakami
IPC分类号： G11B5/86 , G11B5/02 , G11B20/12 , G11B5/012
CPC分类号： G11B20/1217 , G11B5/012 , G11B5/02 , G11B5/82 , G11B2020/1238
摘要： According to one embodiment, a magnetic recording and reproducing device includes a magnetic recording medium, a recording unit, and a reproducing unit. The magnetic recording medium includes a first track including first and second sub-tracks extending in a first direction. The second sub-track is arranged with the first sub-track in a second direction intersecting the first direction. The recording unit records information in the first and second sub-tracks. The reproducing unit reproduces the information recorded in the first and second sub-tracks while opposing the first, second sub-tracks, and a boundary between the first and second sub-tracks. The first sub-track includes first magnetic recording components including first and second components. The second sub-track includes second magnetic recording components including third and fourth components. A first recording symbol is formed of the first and third components. A second recording symbol is formed of the second and fourth components.
摘要翻译：根据一个实施例，磁记录和再现装置包括磁记录介质，记录单元和再现单元。磁记录介质包括第一轨道，该第一轨道包括沿第一方向延伸的第一和第二子轨道。第二子轨道与第一子轨道沿与第一方向相交的第二方向布置。记录单元将信息记录在第一和第二子轨道中。再现单元再现与第一和第二子轨道相对的第一和第二子轨道中记录的信息，以及第一和第二子轨道之间的边界。第一子轨道包括包括第一和第二分量的第一磁记录部件。第二子轨道包括第二和第四分量的第二磁记录组件。第一记录符号由第一和第三分量形成。第二记录符号由第二和第四分量形成。

63. 发明授权

US09349387B1 Detection of open write heads and/or cables in tape drives 有权
标题翻译：检测磁带机中打开的写入头和/或电缆
公开(公告)号：US09349387B1
公开(公告)日：2016-05-24
申请号：US14814374
申请日：2015-07-30
申请人： International Business Machines Corporation
发明人： Larry L. Tretter
IPC分类号： G11B5/02 , G11B5/09 , G11B5/012
CPC分类号： G11B5/09 , G11B5/00813 , G11B5/455
摘要： An apparatus, according to one embodiment, includes a controller having a write driver, and a comparator circuit configured to detect a high resistance condition by comparing a first output voltage of the write driver with a second output voltage of the comparator circuit. A high resistance condition is detected in response to determining that the second output voltage of the comparator circuit is greater than the first output voltage of the write driver. Other systems, methods, and computer program products are described in additional embodiments.
摘要翻译：根据一个实施例的装置包括具有写入驱动器的控制器和被配置为通过比较写入驱动器的第一输出电压与比较器电路的第二输出电压来检测高电阻状况的比较器电路。响应于确定比较器电路的第二输出电压大于写入驱动器的第一输出电压，检测高电阻条件。在另外的实施例中描述了其他系统，方法和计算机程序产品。

64. 发明授权

US09336808B2 Magnetic tape processing 有权
标题翻译：磁带加工
公开(公告)号：US09336808B2
公开(公告)日：2016-05-10
申请号：US14443548
申请日：2013-01-31
申请人： Hewlett Packard Enterprise Development LP
发明人： Mike Alan Holmberg , Geoff Spratt , Brian Brong , Mike Sharrock , Steven L. Brittenham , Scott A. Swanbeck , Eric Petersen , Lawrence A. Hansen , Paul W. Poorman
IPC分类号： G11B5/02 , G11B5/78 , G11B5/008 , G11B20/10 , G11B5/00
CPC分类号： G11B5/00813 , G11B5/00826 , G11B5/09 , G11B5/3903 , G11B5/6011 , G11B5/78 , G11B20/10287 , G11B2005/0021
摘要： A system including a magnetic tape processing system that includes a read/write head to write to a top surface of a magnetic tape. The read/write head provides a write head field gradient of at least 40 Oersteds per nanometer at the top surface of the magnetic tape. The magnetic tape processing system and the read/write head provide a track density of greater than 8000 tracks per inch, a bit density of greater than 440 kilo-bits per inch, and an aspect ratio of less than 70.
摘要翻译：一种包括磁带处理系统的系统，该系统包括用于写入磁带顶表面的读/写头。读/写头在磁带的顶表面提供每纳米至少40奥斯特的写头场梯度。磁带处理系统和读/写头提供每英寸大于8000轨道的轨道密度，大于440千位/英寸的位密度和小于70的纵横比。

65. 发明授权

US09324366B1 Controlling track density in storage discs 有权
标题翻译：控制存储盘中的轨道密度
公开(公告)号：US09324366B1
公开(公告)日：2016-04-26
申请号：US14676742
申请日：2015-04-01
申请人： Seagate Technology LLC
发明人： Kurt Charles Wiesen , Peter S. Harllee, III , Randall Clement Bauck
IPC分类号： G11B5/02 , G11B5/09 , G11B20/12
CPC分类号： G11B20/1217 , G11B2020/1238 , G11B2020/1242
摘要： Devices including at least one storage disc having a recording surface segmented into a plurality of radial zones, each radial zone having an inner diameter and an outer diameter, each of the plurality of zones having a plurality of concentric tracks; and a track density ramp ratio assigned to each of the plurality of zones, where the track density ramp ratio describes an increase in the track density from the inner diameter of the zone to the outer diameter of the zone.
摘要翻译：包括至少一个具有分割成多个径向区域的记录表面的存储盘的设备，每个径向区域具有内径和外径，所述多个区域中的每一个具有多个同心轨道; 以及分配给多个区域中的每个区域的轨道密度斜坡比，其中轨道密度斜率比描述了轨道密度从该区域的内径到该区域的外径的增加。

66. 发明授权

US09286932B2 Hard disk drive having regions corresponding to different speeds at which storage surface rotates 有权
标题翻译：硬盘驱动器具有对应于存储表面旋转的不同速度的区域
公开(公告)号：US09286932B2
公开(公告)日：2016-03-15
申请号：US13259202
申请日：2009-10-30
申请人： Eric A. Anderson , Arif A. Merchant
发明人： Eric A. Anderson , Arif A. Merchant
IPC分类号： G11B5/02 , G11B19/26 , G11B5/012 , G11B20/12
CPC分类号： G11B19/26 , G11B5/012 , G11B20/1258 , G11B2020/1242 , G11B2220/2516
摘要： A hard disk drive includes a storage surface, a motor, a read/write had, and a number of regions into which the storage surface is divisible. Data is writable to and data is readable from the storage surface. The motor is to rotate the storage surface at a variable speed. The read/write head is to write data to and read data from the storage surface while the storage surface is rotated by the motor. Each region corresponds to a different speed at which the storage surface is rotated for the read/write head to write data to and read data from the region.
摘要翻译：硬盘驱动器包括存储表面，电动机，已读取/写入以及存储表面可分割成多个区域。数据是可写的，数据可从存储表面读取。电机以可变速度旋转存储表面。读/写头是在存储表面由电动机旋转的同时将数据写入存储表面并从存储表面读取数据。每个区域对应于存储表面旋转以使读/写头向数据写入数据和从该区域读取数据的不同速度。

67. 发明授权

US09275663B2 Heater to keep reader head in stable temperature range 有权
标题翻译：加热器使读取头保持在稳定的温度范围
公开(公告)号：US09275663B2
公开(公告)日：2016-03-01
申请号：US14684805
申请日：2015-04-13
申请人： Seagate Technology LLC
发明人： Jung Wook Hur , Tae Won Kim , Haejung Lee
IPC分类号： G11B5/02 , G11B5/455 , G11B5/40
CPC分类号： G11B5/455 , G11B5/40
摘要： Technologies are described herein for utilizing a head heater to test temperature stability of a head of a storage device and to prevent the head from operating in an unstable temperature condition. A temperature condition of a read/write head in a storage device is ascertained and it is determined whether the temperature condition is within a predetermined range of temperature conditions in which the read/write head exhibits instability. If the temperature condition of the read/write head is within the predetermined range, a power level of a head heater of the read/write head is adjusted to change the temperature condition of the read/write head to be outside of the predetermined range.
摘要翻译：本文描述了技术，其利用头部加热器来测试存储装置的头部的温度稳定性并防止头部在不稳定的温度条件下操作。确定存储装置中的读/写头的温度条件，并且确定温度条件是否在读/写头显示不稳定的温度条件的预定范围内。如果读/写头的温度条件在预定范围内，则读/写头的头加热器的功率电平被调节以将读/写头的温度条件改变到超出预定范围。

68. 发明授权

US09263069B2 Spectral noise analysis for read head structures 有权
标题翻译：读头结构的光谱噪声分析
公开(公告)号：US09263069B2
公开(公告)日：2016-02-16
申请号：US13794404
申请日：2013-03-11
申请人： Infinitum Solutions, Inc.
发明人： Alexander M. Taratorin
IPC分类号： G11B5/455 , G11B5/127 , G11B5/02 , G11B5/31
CPC分类号： G11B5/455 , G11B5/3166 , G11B5/3189
摘要： A testing device tests a magnetic head with a read head structure including a read head element while applying an external magnetic field to the magnetic head. The testing device receives signals from the read head element and processes the signals to generate a spectral power density for the signals. The spectral power density is characterized for at least one frequency range. The characterization of the spectral power density is used to determine a characteristic of noise from the read head structure. The signals from the read head may be received with different applied magnetic fields and/or before or while thermally exciting the magnetic head. Additionally, a histogram of the signals may be generated and used to determine a second characteristic of the noise.
摘要翻译：测试装置在将包含读头元件的读头结构同时向磁头施加外部磁场的情况下测试磁头。测试设备从读取头元件接收信号并处理信号以产生信号的频谱功率密度。频谱功率密度的特征在于至少一个频率范围。频谱功率密度的表征用于确定来自读头结构的噪声的特性。来自读头的信号可以用不同的施加磁场和/或在热激励磁头之前或期间被接收。另外，可以生成信号的直方图并用于确定噪声的第二特性。

69. 发明授权

US09251811B1 Symbol timing recovery scheme for parallel recording channel systems 有权
标题翻译：并行记录通道系统的符号定时恢复方案
公开(公告)号：US09251811B1
公开(公告)日：2016-02-02
申请号：US14735317
申请日：2015-06-10
申请人： International Business Machines Corporation
发明人： Simeon Furrer , Robert A. Hutchins , Jens Jelitto , Mark A. Lantz
IPC分类号： G11B20/20 , G11B5/00 , G11B5/02
CPC分类号： G11B20/10259 , G01R31/31922 , G11B5/00813 , G11B5/00826 , G11B5/02 , G11B5/29 , G11B5/584 , G11B20/10037 , G11B20/10046 , H04L25/05
摘要： A method for symbol timing recovery is disclosed. The method comprises receiving a plurality of timing-error estimates for a plurality of read channels, where each of the timing-error estimates corresponds to one of the read channels. The method further comprises calculating a common phase based on the plurality of timing-error estimates, and calculating a skew of a transducer array based on the plurality of timing-error estimates. Finally, the method comprises calculating a different total phase estimate for each read channel based on the calculated common phase and the calculated skew of the transducer array.
摘要翻译：公开了一种用于符号定时恢复的方法。该方法包括接收多个读取通道的多个定时误差估计，其中每个定时误差估计对应于一个读取通道。该方法还包括基于多个定时误差估计来计算公共相位，以及基于多个定时误差估计来计算换能器阵列的偏斜。最后，该方法包括基于所计算的公共相位和所计算的换能器阵列的偏差来计算每个读取通道的不同总相位估计。

70. 发明授权

US09245540B1 Voice coil motor temperature sensing circuit to reduce catastrophic failure due to voice coil motor coil shorting to ground 有权
标题翻译：音圈电机温度检测电路可减少由于音圈电机线圈短路而造成的灾难性故障
公开(公告)号：US09245540B1
公开(公告)日：2016-01-26
申请号：US14526618
申请日：2014-10-29
申请人： Western Digital Technologies, Inc.
发明人： John R. Agness , William K. Laird
IPC分类号： G11B5/02 , G11B5/55 , H02H3/08 , G11B5/40
CPC分类号： G11B5/022 , G05F1/463 , G11B5/40 , G11B5/5565 , G11B19/046 , H02H3/085 , H02H5/048
摘要： An electrical circuit includes: a controlled switch; one or more temperature sensors in thermal contact with the controlled switch; and a control unit configured to: receive a temperature signal from the one or more temperature sensors; compare the received temperature signal to a predetermined threshold; and in response to the received temperature signal exceeding the predetermined threshold, render the controlled switch inoperative.
摘要翻译：电路包括：受控开关; 与受控开关热接触的一个或多个温度传感器; 以及控制单元，被配置为：从所述一个或多个温度传感器接收温度信号; 将接收到的温度信号与预定阈值进行比较; 并且响应于所接收的温度信号超过预定阈值，使受控开关不起作用。

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