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1. 发明授权

US09691427B2 Method and apparatus for detecting tightness of a pick-up head, method for controlling the moving of the pick-up head 有权
公开(公告)号：US09691427B2
公开(公告)日：2017-06-27
申请号：US15220734
申请日：2016-07-27
申请人： AutoChips Inc.
发明人： Jian Zhou
IPC分类号： G11B7/00 , G11B19/00 , G11B21/08 , G11B5/455
CPC分类号： G11B21/08 , G11B5/5534 , G11B5/5565 , G11B7/08505 , G11B21/083
摘要： A method and apparatus for detecting tightness of a pick-up head, and a method and apparatus for controlling the moving of the pick-up head are disclosed. The method for detecting the tightness of the pick-up head includes moving the pick-up head to an inner area of the disc reading device when then disc reading device is powered on, moving the pick-up head to an outer area of the disc reading device within a predetermined time period, moving the pick-up head from the outer area of the disc reading device to the inner area at a constant speed by a first fixed force, and recording the moving duration for moving the pick-up head from the outer area of the disc reading device to the inner area at the constant speed.

2. 发明授权

US09679595B1 Thermal asperity detection apparatus and method 有权
公开(公告)号：US09679595B1
公开(公告)日：2017-06-13
申请号：US15085559
申请日：2016-03-30
申请人： Seagate Technology LLC
发明人： Lihong Zhang , Xiong Liu , Samuel Gan
IPC分类号： G11B19/04 , G11B5/55 , G11B5/00 , G11B20/18 , G11B5/012
CPC分类号： G11B5/5565 , G11B5/012 , G11B19/041 , G11B19/048 , G11B20/1816 , G11B20/1883 , G11B20/1889 , G11B2005/0021 , G11B2020/1826 , G11B2020/1896
摘要： A method comprises sensing for thermal asperities while sequentially scanning a plurality of tracks of a magnetic recording medium in a first direction relative to an inner or outer diameter of the medium. The method comprises halting the scanning at a first track in response to detecting a thermal asperity at the first track, and skipping a predetermined number of tracks in the first direction to a second track. The method also comprises sensing for the thermal asperity while sequentially scanning the plurality of tracks beginning with the second track in a second direction opposite the first direction. The method further comprises halting the scanning at a third track in response to detecting the thermal asperity at the third track, and logging the first and third tracks as tracks between which the thermal asperity is located.

3. 发明授权

US09373354B2 Method and system for preventing unreliable data operations at cold temperatures 有权
标题翻译：用于防止在寒冷的温度下不可靠的数据操作的方法和系统
公开(公告)号：US09373354B2
公开(公告)日：2016-06-21
申请号：US14525677
申请日：2014-10-28
申请人： Dell Products L.P.
发明人： Clinton Allen Powell
IPC分类号： G11B19/04 , G11B5/55 , G11B25/04 , G11B33/14
CPC分类号： G11B19/046 , G11B5/5547 , G11B5/5565 , G11B25/043 , G11B33/1406
摘要： Systems and methods for reducing problems and disadvantages associated with protecting data during cold excursions are provided. A method for preventing unreliable data operations at cold temperatures may include determining whether a first internal temperature of a hard disk drive (HDD) is below a threshold temperature. The method may also include initiating an artificial seek operation if the first internal temperature is below the threshold temperature.
摘要翻译：提供了用于减少在冷偏移期间与数据保护相关的问题和缺点的系统和方法。用于防止在低温下不可靠的数据操作的方法可以包括确定硬盘驱动器（HDD）的第一内部温度是否低于阈值温度。该方法还可以包括如果第一内部温度低于阈值温度则启动人工寻道操作。

4. 发明授权

US09177579B2 Single-piece yoke damper for voice coil actuator 有权
标题翻译：用于音圈执行器的单片轭音箱
公开(公告)号：US09177579B2
公开(公告)日：2015-11-03
申请号：US14081872
申请日：2013-11-15
申请人： HGST Netherlands B.V.
发明人： Manoj B. Keshavan
IPC分类号： G11B21/02 , G11B5/55 , H02K33/16 , H02K41/035
CPC分类号： G11B5/5565 , G11B5/5573 , G11B5/5582 , H02K33/16 , H02K41/0358
摘要： Approaches to improving actuator settle time by damping vibrations resulting from coil modes, such as with a voice coil actuator in a hard disk drive, include a single-piece damper plate coupled to the voice coil actuator yoke. The damper plate may be a single U-shaped piece of metal that covers the area of the yoke that experiences the maximum strain energy during operation, between the voice coil and the pivot bearing housing.
摘要翻译：通过阻止由线圈模式产生的振动来提高致动器稳定时间的方法，例如在硬盘驱动器中的音圈致动器，包括耦合到音圈致动器轭的单片阻尼板。阻尼板可以是覆盖在操作期间在音圈和枢转轴承壳体之间经历最大应变能的轭的区域的单个U形金属片。

5. 发明授权

US08780478B1 Grease wear leveling for a disk drive 有权
标题翻译：一个磁盘驱动器的润滑脂磨损均衡
公开(公告)号：US08780478B1
公开(公告)日：2014-07-15
申请号：US13627952
申请日：2012-09-26
申请人： Western Digital Technologies, Inc.
发明人： Sang Huynh , Kenneth J. Smith , Johnathan C. Lloyd , Chun Sei Tsai
IPC分类号： G11B5/55
CPC分类号： G11B5/5521 , G11B5/40 , G11B5/41 , G11B5/5565
摘要： Grease wear leveling in a disk drive including an actuator for moving a head over a disk as part of a seek operation. A count of seek operations is maintained and when the count of seek operations exceeds a first threshold number, one or more full stroke seek (FSS) operations are performed until a count of the FSS operations performed reaches a predetermined number. The FSS operation includes moving the head through a substantially wide range of motion. For each of the one or more FSS operations performed, the count of FSS operations performed is adjusted based on whether the most recent FSS operation was performed within a time window. The time window is based at least on a number of interval seek operations performed since a previously performed FSS operation.
摘要翻译：磁盘驱动器中的润滑脂磨损均匀化，其包括作为搜索操作的一部分的头部在盘上移动的致动器。维持搜索操作的计数，并且当搜索操作的计数超过第一阈值数时，执行一次或多次全行程搜索（FSS）操作，直到执行的FSS操作的计数达到预定数量。 FSS操作包括使头部移动相当宽的运动范围。对于执行的一个或多个FSS操作中的每一个，执行的FSS操作的计数是基于在时间窗口内是否执行最近的FSS操作来调整的。时间窗口至少基于从先前执行的FSS操作执行的间隔寻道操作的数量。

6. 发明授权

US08699165B2 Thermal read/write offset compensation 有权
标题翻译：热读/写偏移补偿
公开(公告)号：US08699165B2
公开(公告)日：2014-04-15
申请号：US12827752
申请日：2010-06-30
申请人： Lidu Huang , Fu-Ying Huang , Tetsuo Semba
发明人： Lidu Huang , Fu-Ying Huang , Tetsuo Semba
IPC分类号： G11B5/596
CPC分类号： G11B5/59627 , G11B5/5565 , G11B33/144
摘要： A HDD comprising a temperature sensor disposed inside the HDD configured to periodically measure temperature inside of said hard disk drive; a magnetic disk; a read head; a write head; memory for storing RWO data. The RWO data is a function of a distance between the read head and the write head. The HDD also includes a RWO data adjustor configured to adjust the RWO data in response to a change in temperature of the HDD to compensate for a change in the distance between the read head and the write head based on the change in temperature.
摘要翻译：一种HDD，包括设置在所述HDD内部的温度传感器，所述温度传感器被配置为周期性地测量所述硬盘驱动器磁盘读头; 写头; 用于存储RWO数据的存储器。 RWO数据是读取头和写入头之间的距离的函数。 HDD还包括RWO数据调整器，其被配置为响应于HDD的温度变化来调整RWO数据，以补偿基于温度变化的读取头和写入头之间的距离的变化。

7. 发明授权

US08547123B2 Storage device testing system with a conductive heating assembly 有权
标题翻译：带导电加热组件的存储设备测试系统
公开(公告)号：US08547123B2
公开(公告)日：2013-10-01
申请号：US12836915
申请日：2010-07-15
申请人： Brian S. Merrow , Larry W. Akers
发明人： Brian S. Merrow , Larry W. Akers
IPC分类号： G01R31/10 , G01R31/00 , H05K7/16 , H05K7/00
CPC分类号： G11B19/048 , G11B5/4555 , G11B5/5565
摘要： A test slot assembly is provided for testing a storage device. The test slot assembly is configured to receive and support a storage device, or a storage device supported by a storage device transporter. The test slot assembly also includes a conductive heating assembly. The conductive heating assembly is arranged to heat a storage device by way of thermal conduction.
摘要翻译：提供测试槽组件用于测试存储设备。测试槽组件被配置为接收和支持由存储设备运送器支持的存储设备或存储设备。测试槽组件还包括导电加热组件。导电加热组件被布置成通过热传导来加热存储装置。

8. 发明申请

US20110261660A1 Magnetic And Optical Rotating Storage Systems With Audio Monitoring 有权
标题翻译：具有音频监控的磁性和光学旋转存储系统
公开(公告)号：US20110261660A1
公开(公告)日：2011-10-27
申请号：US13155018
申请日：2011-06-07
申请人： Sehat Sutardja
发明人： Sehat Sutardja
IPC分类号： G11B20/24
CPC分类号： G11B19/20 , G11B5/5526 , G11B5/5565 , G11B19/04 , G11B19/048 , G11B19/28 , G11B33/12
摘要： An integrated circuit for controlling a data storage device. The integrated circuit includes: a drive module configured to control operation of the data storage device, wherein the data storage device is of a particular quality; and an audio monitoring module in communication with the drive module, wherein the audio monitoring module is configured to analyze an audio signal generated by the data storage device while the drive module is controlling the operation of the data storage device. The particular quality of the data storage device is determinable based on the analysis of the audio signal.
摘要翻译：一种用于控制数据存储装置的集成电路。集成电路包括：驱动模块，被配置为控制数据存储装置的操作，其中数据存储装置具有特定质量; 以及与所述驱动模块通信的音频监视模块，其中所述音频监视模块被配置为在所述驱动模块正在控制所述数据存储设备的操作的同时，分析由所述数据存储设备产生的音频信号。基于对音频信号的分析，可以确定数据存储设备的特定质量。

9. 发明授权

US08035914B2 Hard disk drive and method for designing additional controller included in hard disk drive 失效
标题翻译：硬盘驱动器和设计包含在硬盘驱动器中的附加控制器的方法
公开(公告)号：US08035914B2
公开(公告)日：2011-10-11
申请号：US12364664
申请日：2009-02-03
申请人： Sang-min Suh , Kwang-jo Jung , Jeong-heon Han
发明人： Sang-min Suh , Kwang-jo Jung , Jeong-heon Han
IPC分类号： G11B5/596
CPC分类号： G11B5/5565 , G11B5/596
摘要： A hard disk drive is provided. The hard disk drive comprises a plant configured to drive the hard disk drive, a main controller configured to control the plant, and an additional controller connected in parallel with the main controller. A response function in consideration of the plant and the main controller is referred to as a main response function, and a response function in consideration of the plant and the additional controller is referred to as a first response function. The first response function cancels a function value corresponding to a section of the main response function that is associated with disturbance. The response function of the additional controller may be designed using the first response function. The hard disk drive removes a portion of the main response function to minimize the influence of the disturbance.
摘要翻译：提供了一个硬盘驱动器。硬盘驱动器包括被配置为驱动硬盘驱动器的设备，被配置为控制工厂的主控制器以及与主控制器并联连接的附加控制器。考虑到工厂和主控制器的响应功能被称为主要响应功能，并且考虑到工厂和附加控制器的响应功能被称为第一响应功能。第一响应函数取消与干扰相关联的主响应函数的一部分相对应的函数值。可以使用第一响应函数来设计附加控制器的响应函数。硬盘驱动器删除主要响应功能的一部分，以最小化扰动的影响。

10. 发明授权

US07990641B2 Proximity detection method for magnetic head and recording medium 失效
标题翻译：磁头和记录介质的接近检测方法
公开(公告)号：US07990641B2
公开(公告)日：2011-08-02
申请号：US12187327
申请日：2008-08-06
申请人： Craig L. Tomita
发明人： Craig L. Tomita
IPC分类号： G11B27/36 , G11B21/02
CPC分类号： G11B20/1816 , G11B5/40 , G11B5/5565 , G11B5/6011 , G11B5/6029 , G11B2220/2516
摘要： Touchdown is detected between an R/W head and disk by determining the variance in the frequency domain of a baseline position error signal (PES) and a PES measured after incrementally increasing the DFH control signal. To quantify the variance in the frequency domain, a discrete Fourier transform of the baseline PES and of each PES produced for a given DFH control signal is used. A band-limited PES variance is used to improve touchdown detection, but is not a requirement of this method.
摘要翻译：通过确定在基线位置误差信号（PES）的频域中的方差和在逐渐增加DFH控制信号之后测量的PES，在R / W磁头和磁盘之间检测到触地踏板。为了量化频域中的方差，使用对于给定的DFH控制信号产生的基线PES和每个PES的离散傅立叶变换。使用带限制的PES方差来改善触地检测，但不是这种方法的要求。

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