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71. 发明授权

US09240209B1 Pass-through tape access in a disk storage environment 有权
标题翻译：在磁盘存储环境中传递磁带访问
公开(公告)号：US09240209B1
公开(公告)日：2016-01-19
申请号：US14502218
申请日：2014-09-30
申请人： International Business Machines Corporation
发明人： Joshua J. Crawford , Paul A. Jennas, II , Jason L. Peipelman , Matthew J. Ward
IPC分类号： G11B5/02 , G11B15/46 , G11B20/12 , G11B27/34
CPC分类号： G06F12/10 , G06F3/0619 , G06F3/0638 , G06F3/0664 , G06F3/0685 , G06F2212/1036 , G06F2212/152 , G06F2212/213 , G06F2212/261 , G06F2212/70 , G11B20/1201 , G11B27/002 , G11B27/11 , G11B27/327 , G11B2020/1267
摘要： A command to write data to a virtual location is received at a disk storage system. The virtual location is mapped to a tape storage system. A record is generated including the data, the virtual location, and a sequence value. The sequence value indicates relative sequence when compared to other sequence values. The record is written to a record location on a tape cartridge loaded in a tape drive. Record metadata on the disk storage system is modified to indicate that the first record location contains the first record. The data on the record can be read from the tape cartridge.
摘要翻译：在磁盘存储系统中接收到将数据写入虚拟位置的命令。虚拟位置映射到磁带存储系统。生成包括数据，虚拟位置和序列值的记录。当与其他序列值相比时，序列值表示相对序列。该记录被写入装载在磁带驱动器中的磁带盒上的记录位置。修改磁盘存储系统上的记录元数据，以指示第一个记录位置包含第一个记录。记录中的数据可以从磁带盒中读取。

72. 发明授权

US09236067B2 Method and apparatus for speed control of voice coil motor retract operation dependent upon available power 有权
标题翻译：根据可用功率，音圈电机缩回操作的速度控制方法和装置
公开(公告)号：US09236067B2
公开(公告)日：2016-01-12
申请号：US13956484
申请日：2013-08-01
申请人： STMicroelectronics Asia Pacific Pte. Ltd.
发明人： Lorenzo Ferrario , Kaufik Linggajaya
IPC分类号： H02P6/18 , G11B5/02
CPC分类号： G11B5/022
摘要： The back EMF (BEMF) of a motor is sensed and compared to a target back EMF (BEMF) to generate an error control signal. The circuit supply voltage is also sensed. A PWM motor control signal is generated in response to a comparison of the error control signal to a ramp signal having a variable slope. The variable slope is selected in response to the sensed circuit supply voltage. The motor is then driven in response to the PWM control signal. The sign of the error control signal is used to selectively short one of motor terminals to a reference voltage supply node while the other motor terminal is driven in response to the PWM control signal.
摘要翻译：电动机的反电动势（BEMF）被感测并与目标反电动势（BEMF）进行比较以产生误差控制信号。还检测电路电源电压。响应于误差控制信号与具有可变斜率的斜坡信号的比较，产生PWM电动机控制信号。响应于检测到的电路电源电压选择可变斜率。然后根据PWM控制信号驱动电机。误差控制信号的符号用于选择性地将一个电动机端子短路到参考电压供应节点，同时响应于PWM控制信号驱动另一个电动机端子。

73. 发明授权

US09236065B2 Reclamation of data on tape cartridge 有权
标题翻译：磁带上数据的回收
公开(公告)号：US09236065B2
公开(公告)日：2016-01-12
申请号：US14511660
申请日：2014-10-10
申请人： International Business Machines Corporation
发明人： Atsushi Abe , Yumiko Ohta , Setsuko Masuda , Terue Watanabe
IPC分类号： G11B5/02 , G11B5/09 , G11B5/008 , G11B20/12
CPC分类号： G11B5/00817 , G11B20/1201 , G11B20/1202 , G11B2020/1292
摘要： A method is provided for automatically reclaiming areas with unneeded data in a tape cartridge (medium) storing files updated by appended writing. In this reclamation method, the appended writing entails the sequential compression of data needed by the updated file (needed data) and data not needed by the file (unneeded data) and storage of the compressed data on the medium, and the medium is divided into at least three data partitions for the storage of data.
摘要翻译：提供了一种用于在存储通过附加写入更新的文件的磁带盒（介质）中自动回收具有不需要的数据的区域的方法。在这种回收方法中，附加的写入需要对文件（不需要的数据）不需要的更新文件（所需数据）和数据所需的数据的顺序压缩以及压缩数据在介质上的存储，并且将介质分为用于存储数据的至少三个数据分区。

74. 发明授权

US09224421B2 Non-decision directed magnetoresistive asymetry estimation 有权
标题翻译：非决策定向磁阻非对称估计
公开(公告)号：US09224421B2
公开(公告)日：2015-12-29
申请号：US14200228
申请日：2014-03-07
申请人： LSI Corporation
发明人： Bruce A. Wilson , Nayak Ratnakar Aravind , Haitao Xia
IPC分类号： G11B5/02 , G11B20/10 , G11B5/012
CPC分类号： G11B20/10324 , G11B5/012 , G11B5/455 , G11B20/10009 , G11B20/10027 , G11B20/10037 , G11B2005/0016
摘要： Systems and methods for magnetoresistive asymmetry estimation may include, but are not limited to, operations for: receiving a magnetic read head transducer output; computing a mean value of the magnetic read head transducer output; computing a median value of the magnetic read head transducer output; and applying a correction coefficient to a magnetic read head detector input according to at least the mean value of the magnetic read head transducer output and the median value of the magnetic read head transducer output.
摘要翻译：用于磁阻非对称估计的系统和方法可以包括但不限于用于：接收磁读头传感器输出的操作; 计算磁读头传感器输出的平均值; 计算磁读头转换器输出的中值; 以及至少根据磁读头变换器输出的平均值和磁读头变换器输出的中值，向磁读头检测器输入施加校正系数。

75. 发明授权

US09218846B2 Demodulation method of magnetic data and demodulation device of magnetic data 有权
标题翻译：磁数据解调方法及磁数据解调装置
公开(公告)号：US09218846B2
公开(公告)日：2015-12-22
申请号：US14669409
申请日：2015-03-26
申请人： NIDEC SANKYO CORPORATION
发明人： Shigeo Nakajima , Katsuhisa Higashi , Yoichi Isono
IPC分类号： G11B5/02 , G11B20/10 , G11B20/12 , G11B5/09
CPC分类号： G11B20/10287 , G11B5/00808 , G11B5/09 , G11B20/10268 , G11B20/1252 , G11B20/14 , G11B20/1403
摘要： A demodulation method of magnetic data may include a first data creating step which creates a preliminary data string for creating the demodulation data on a basis of an interval that is a time interval between peaks of a read signal of an analog-shaped magnetic data, and a second data creating step which creates a demodulation data creating data for creating the demodulation data on a basis of the preliminary data string created in the first data creating step. When a peak of the read signal is not detected for a predetermined time, a pseudo-peak is generated and a pseudo-interval is stored in a data storage section, and steps similar to the first data creating step and the second data creating step are executed, and the pseudo-peak is generated until the demodulation data creating data corresponding to a final interval is created.
摘要翻译：磁数据的解调方法可以包括第一数据创建步骤，该步骤基于作为模拟磁数据的读取信号的峰值之间的时间间隔的间隔和与模拟形状磁数据的读取信号的峰值之间的时间间隔创建用于创建解调数据的初步数据串;以及第二数据创建步骤，基于在第一数据创建步骤中创建的初步数据串，创建用于创建解调数据的解调数据创建数据。当在预定时间内没有检测到读取信号的峰值时，产生伪峰值，并将伪间隔存储在数据存储部分中，并且类似于第一数据创建步骤和第二数据创建步骤的步骤是并且产生伪峰值，直到创建与最后间隔相对应的解调数据创建数据。

76. 发明授权

US09218822B1 Disk drive with preamplifier with isolation for multiple readers in a slider with a common return signal 有权
标题翻译：具有前置放大器的磁盘驱动器，具有隔离，用于具有公共返回信号的滑块中的多个读取器
公开(公告)号：US09218822B1
公开(公告)日：2015-12-22
申请号：US14711428
申请日：2015-05-13
申请人： HGST Netherlands B.V.
发明人： John Contreras , Samir Y. Garzon , Rehan Ahmed Zakai
IPC分类号： G11B5/02 , G11B5/40 , G11B5/012 , G11B27/36 , G11B5/00
CPC分类号： G11B5/02 , G11B5/012 , G11B5/40 , G11B5/486 , G11B5/4886 , G11B27/36 , G11B2005/0016
摘要： Interconnect and preamplifier designs are described for use in a disk drive with a common signal return lead system that interconnects a plurality of read transducers (readers) in a slider through the suspension to the preamplifier mounted on the actuator. Preamplifier embodiments have an isolated differential amplifier for each of the plurality of readers in the slider. The set of signal traces in the suspension include a common signal return lead for the plurality of readers in the slider. A preamplifier circuit design according to an embodiment of the invention includes isolated amplifiers for each reader with a separate bias source and power supply isolation elements for both power supply polarities for reduced crosstalk signal and noise between amplifiers.
摘要翻译：互连和前置放大器设计被描述用于具有公共信号返回引线系统的磁盘驱动器，该公共信号返回引线系统将滑块中的多个读取换能器（读取器）通过悬架连接到安装在致动器上的前置放大器。前置放大器实施例具有用于滑块中的多个读取器中的每一个的隔离差分放大器。悬架中的一组信号迹线包括用于滑块中的多个读取器的公共信号返回引线。根据本发明的实施例的前置放大器电路设计包括用于每个读取器的隔离放大器，其具有用于两个电源极性的单独偏置源和电源隔离元件，用于降低串扰信号和放大器之间的噪声。

77. 发明授权

US09196265B2 Disk-drive pulse duration control system 有权
标题翻译：磁盘驱动脉冲持续时间控制系统
公开(公告)号：US09196265B2
公开(公告)日：2015-11-24
申请号：US13875862
申请日：2013-05-02
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Marius Vicentiu Dina , Jeremy Robert Kuehlwein
IPC分类号： G11B5/09 , G11B5/02
CPC分类号： G11B5/09 , G11B5/02 , G11B5/022
摘要： One embodiment includes a pulse duration control system for a magnetic disk-drive system. A rise delay system generates first control voltages in response to a write data input signal changing between a first state and a second state. A fall delay system generates second control voltages in response to the write data input signal changing between the first and second states. A comparator system generates a rising-edge overshoot signal and a falling-edge overshoot signal based on a comparison of the first and second control voltages. The rising-edge overshoot signal can set a duration of a positive overshoot current pulse for a write current at a transition of the write data input signal from the first state to the second state, and the falling-edge overshoot signal can set a duration of a negative overshoot current pulse for the write current at a transition from the second state to the first state.
摘要翻译：一个实施例包括用于磁盘驱动系统的脉冲持续时间控制系统。上升延迟系统响应于写入数据输入信号在第一状态和第二状态之间变化而产生第一控制电压。响应于写入数据输入信号在第一和第二状态之间变化，跌落延迟系统产生第二控制电压。比较器系统基于第一和第二控制电压的比较产生上升沿过冲信号和下降沿过冲信号。上升沿过冲信号可以在写入数据输入信号从第一状态到第二状态的转变时为写入电流设置正过冲电流脉冲的持续时间，并且下降沿过冲信号可以设置持续时间在从第二状态到第一状态的转变时，用于写入电流的负的过冲电流脉冲。

78. 发明授权

US09177598B2 Device, method of fabricating a media and method of servo writing 有权
标题翻译：装置，制造介质的方法和伺服写入方法
公开(公告)号：US09177598B2
公开(公告)日：2015-11-03
申请号：US13684033
申请日：2012-11-21
申请人： MARVELL INTERNATIONAL LTD.
发明人： Siang Huei Leong , Zhimin Yuan , Bo Liu , Joo Boon Marcus Lim
IPC分类号： G11B21/02 , G11B5/127 , G11B5/82 , G11B5/02 , G11B5/596 , G11B5/66 , G11B5/64 , G11B5/73
CPC分类号： G11B21/02 , G11B5/02 , G11B5/127 , G11B5/59638 , G11B5/64 , G11B5/66 , G11B5/7325 , G11B5/82
摘要： A device may be provided. The device includes a media including a servo layer and a data recording layer, and a recording head including a dimension sized to produce a magnetic writing field to write servo information on the servo layer.
摘要翻译：可以提供设备。该装置包括包括伺服层和数据记录层的介质，以及记录头，该记录头的尺寸被设计成产生写磁场以在伺服层上写入伺服信息。

79. 发明授权

US09171554B2 Magnetic disk unit and thermally-assisted magnetic recording method 有权
标题翻译：磁盘单元和热辅助磁记录方法
公开(公告)号：US09171554B2
公开(公告)日：2015-10-27
申请号：US13850480
申请日：2013-03-26
申请人： TDK CORPORATION
发明人： Satoshi Tomikawa , Kei Hirata
IPC分类号： G11B13/08 , G11B5/02 , G11B33/14 , G11B5/48 , G11B5/31 , G11B5/40 , G11B5/00
CPC分类号： G11B5/02 , G11B5/314 , G11B5/40 , G11B5/4886 , G11B33/14 , G11B2005/0021
摘要： The magnetic disk unit includes: a magnetic recording medium; a thermally-assisted magnetic recording head including a magnetic pole applying a recording magnetic field to the magnetic recording medium and a heating element heating the magnetic recording medium; and a controller allowing the heating element to perform a continuous heating operation at a first temperature for a first time period, and halting the heating operation of the heating element or allowing the heating element to perform a heating operation at a second temperature lower than the first temperature for a second time period that follows the first time period, the first time period having a length substantially equal to or less than a length of a time required for the magnetic recording medium to rotate one turn, and the second time period having a length substantially equal to or more than the length of the first time period.
摘要翻译：磁盘单元包括：磁记录介质; 一种热辅助磁记录头，包括向磁记录介质施加记录磁场的磁极和加热该磁记录介质的加热元件; 以及控制器，其允许所述加热元件在第一温度下进行第一时间的连续加热操作，并且停止所述加热元件的加热操作或允许所述加热元件在比所述第一温度低的第二温度下进行加热操作温度在第一时间段之后的第二时间段，第一时间段具有基本上等于或小于磁记录介质旋转一圈所需时间的长度的长度，并且第二时间段具有长度基本上等于或大于第一时间段的长度。

80. 发明授权

US09147414B2 Recording head for heat assisted magnetic recording 有权
标题翻译：记录头用于热辅助磁记录
公开(公告)号：US09147414B2
公开(公告)日：2015-09-29
申请号：US13903235
申请日：2013-05-28
申请人： Seagate Technology LLC
发明人： Michael Allen Seigler , Mark William Covington , Michael Leigh Mallary , Hua Zhou , Amit Vasant Itagi
IPC分类号： G11B5/127 , G11B5/48 , G11B5/02 , G11B5/31 , G11B5/00
CPC分类号： G11B5/4866 , G11B5/02 , G11B5/1278 , G11B5/314 , G11B2005/0021
摘要： An apparatus includes a waveguide having a core layer and an end adjacent to an air bearing surface, first and second poles magnetically coupled to each other and positioned on opposite sides of the waveguide, wherein the first pole includes a first portion spaced from the waveguide and a second portion extending from the first portion toward the air bearing surface, with the second portion being structured such that an end of the second portion is closer to the core layer of the waveguide than the first portion, and a heat sink positioned adjacent to the second portion of the first pole.
摘要翻译：一种装置包括具有芯层和邻近空气轴承表面的端部的波导，第一和第二极彼此磁耦合并且位于波导的相对侧上，其中第一极包括与波导间隔开的第一部分，第二部分从第一部分延伸到空气支承表面，第二部分被构造成使得第二部分的端部比第一部分更靠近波导的芯层，并且与第二部分相邻的散热器第一极的第二部分。

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