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1. 发明授权

US07324299B1 Disk drive that positions a head at multiple head-to-disk spacings 有权
标题翻译：磁盘驱动器将磁头定位在多个磁头到磁盘间距
公开(公告)号：US07324299B1
公开(公告)日：2008-01-29
申请号：US11101114
申请日：2005-04-07
申请人： Erhard Schreck , Donald J Brunnett , Jingbo Yu , Francis P. Crimi , Scott Hughes , Duc Banh , Anthony R. Hurtado , Kazuhiro Saito , Andrew LeFebvre , Chris Hawks , Thao Anh Nguyen , Brian Strom , Bruce C. Schardt
发明人： Erhard Schreck , Donald J Brunnett , Jingbo Yu , Francis P. Crimi , Scott Hughes , Duc Banh , Anthony R. Hurtado , Kazuhiro Saito , Andrew LeFebvre , Chris Hawks , Thao Anh Nguyen , Brian Strom , Bruce C. Schardt
IPC分类号： G11B21/02 , G11B5/596 , G11B5/58
CPC分类号： G11B5/58
摘要： A disk drive having a drive housing, a storage disk that is rotatably coupled to the drive housing, and a slider assembly that includes a head and a slider mover. The head reads data from the storage disk during a read operation and writes data to the storage disk during a write operation. The slider mover maintains the head at a read HtD spacing during the read operation, at a pre-write HtD spacing during the read operation prior to the write operation, at a write HtD spacing during the write operation, and at an idle HtD spacing when the drive is not performing the read operation or the write operation. The disk drive includes a drive circuitry that directs a read power level to the slider mover to maintain the head at the read HtD spacing, a pre-write power level to maintain the head at the pre-write HtD spacing, a write power level to maintain the head at the write HtD spacing, and a idle power level to maintains the head at the idle HtD spacing.
摘要翻译：具有驱动器壳体，可旋转地联接到驱动器壳体的存储盘的磁盘驱动器和包括头部和滑块移动器的滑块组件。在读取操作期间，磁头从存储磁盘读取数据，并在写操作期间将数据写入存储磁盘。滑动移动器在读操作期间以读写操作期间的读取HtD间隔，在写操作期间的读操作期间以写入HtD间隔，在写操作期间以写HtD间隔，以及在空闲HtD间隔处将头保持在读取HtD间隔，驱动器不执行读操作或写操作。磁盘驱动器包括驱动电路，其将读取功率电平引导到滑块移动器以将磁头保持在读取HtD间隔，预写功率电平以将磁头保持在预写HtD间隔，写入功率电平将头部保持在写入HtD间距，并保持空闲功率级别，以将头部保持在空闲HtD间距。

2. 发明授权

US07310194B1 System for monitoring and dynamically adjusting head-to-disk spacing in a disk drive 失效
标题翻译：用于监视和动态调整磁盘驱动器中磁盘间距的系统
公开(公告)号：US07310194B1
公开(公告)日：2007-12-18
申请号：US11101089
申请日：2005-04-07
申请人： Bruce C. Schardt , Erhard Schreck , Jingbo Yu , Michael Mallary , Scott Hughes , Duc Banh , Kazuhiro Saito , Donald J Brunnett , Tim Glassburn , Chris Hawks , Thao Anh Nguyen , Andrew LeFebvre , Joerg Ferber , Richard K. Oswald , Brian Strom
发明人： Bruce C. Schardt , Erhard Schreck , Jingbo Yu , Michael Mallary , Scott Hughes , Duc Banh , Kazuhiro Saito , Donald J Brunnett , Tim Glassburn , Chris Hawks , Thao Anh Nguyen , Andrew LeFebvre , Joerg Ferber , Richard K. Oswald , Brian Strom
IPC分类号： G11B21/02
CPC分类号： G11B5/6029 , G11B5/3133 , G11B5/455 , G11B5/5534 , G11B5/607
摘要： A disk drive includes a drive housing, a storage disk, a slider and a drive circuitry. The slider magnetically interacts with the storage disk, and includes a read/write head that is positioned to have an actual head-to-disk spacing greater than zero nanometers during rotation of the storage disk. The drive circuitry can determine and/or monitor the actual head-to-disk spacing at any time during the operation of the disk drive based on an amplitude or a change in the amplitude of a signal such as a variable gain amplifier signal. In one embodiment, the slider includes a slider mover that receives current via the drive circuitry and causes a deformation of a portion of the slider to change the head-to-disk spacing based on the amplitude of the signal. In another embodiment, the read/write head moves during substantially consistent rotational velocity of the storage disk from a first actual head-to-disk spacing equal to approximately zero nanometers, to a second actual head-to-disk spacing that is greater than zero nanometers based on a desired amplitude of the signal.
摘要翻译：磁盘驱动器包括驱动器壳体，存储盘，滑块和驱动电路。该滑块与存储盘磁性地相互作用，并且包括读/写头，其被定位成在存储盘旋转期间具有大于零纳米的实际头到盘间距。驱动电路可以基于诸如可变增益放大器信号的信号的振幅或振幅的变化来确定和/或监视磁盘驱动器的操作期间的任何时间的实际磁头到磁盘间距。在一个实施例中，滑块包括滑块移动器，其通过驱动电路接收电流，并且导致滑块的一部分的变形，以基于信号的幅度来改变头对盘间隔。在另一个实施例中，读/写头在存储盘的基本一致的旋转速度从等于大约零纳米的第一实际磁头到磁盘间隔移动到大于零的第二实际磁头到磁盘间隔基于信号的期望幅度的纳米。

3. 发明授权

US07310195B1 System and method for adjusting head-to-disk spacing in a disk drive 失效
标题翻译：用于调整磁盘驱动器中磁盘间距的系统和方法
公开(公告)号：US07310195B1
公开(公告)日：2007-12-18
申请号：US11101113
申请日：2005-04-07
申请人： Erhard Schreck , Francis P. Crimi , Andrew LeFebvre , Duc Banh , Thao Anh Nguyen , Brian Strom , Bruce C. Schardt
发明人： Erhard Schreck , Francis P. Crimi , Andrew LeFebvre , Duc Banh , Thao Anh Nguyen , Brian Strom , Bruce C. Schardt
IPC分类号： G11B21/02 , G11B5/596 , G11B5/58
CPC分类号： G11B5/6005
摘要： A disk drive includes a drive housing, a storage disk, a slider and a drive circuitry. The storage disk has an inner and an outer diameter. The slider includes a read/write head and a slider mover that receives power from the drive circuitry to position the read/write head at a predetermined head-to-disk spacing during radial movement of the slider relative to the storage disk. The drive circuitry can direct a varying level of power to the slider mover during radial movement of the slider. In addition, the drive circuitry can increase the power to the slider mover as the read/write head nears a target track in order to decrease the head-to-disk spacing at the appropriate time. The drive circuitry can adjust the power to the slider mover so that the head-to-disk spacing remains within a predetermined range as the slider moves radially relative to the storage disk. The drive circuitry can also direct power to the slider mover so that the head-to-disk spacing is substantially the same at the start of a seek operation and when the read/write head arrives at a target track. The drive circuitry can also direct power to the slider mover based at least partially on the temperature of a portion of the slider.
摘要翻译：磁盘驱动器包括驱动器壳体，存储盘，滑块和驱动电路。存储盘具有内径和外径。滑动器包括读/写头和滑块移动器，其在驱动器相对于存储盘的径向移动期间从驱动电路接收功率以将读/写头定位在预定的头到盘间隔。驱动电路可以在滑块的径向运动期间将变化的功率级别引导到滑块移动器。此外，当读/写头靠近目标轨道时，驱动电路可以增加滑块移动器的功率，以便在适当的时间减小头对盘间距。驱动电路可以调节滑块移动器的功率，使得当滑块相对于存储盘径向移动时，磁头到磁盘间隔保持在预定范围内。驱动电路还可以将电力引导到滑块移动器，使得在寻道操作开始时和当读/写头到达目标轨道时，磁头到磁盘的间距基本相同。驱动电路还可以至少部分地基于滑块的一部分的温度将功率引导到滑块移动器。

4. 发明授权

US07411389B1 Method of detecting changes in operability status of a slider mover in a disk drive 有权
标题翻译：检测磁盘驱动器中滑块移动器的可操作性状态变化的方法
公开(公告)号：US07411389B1
公开(公告)日：2008-08-12
申请号：US11101297
申请日：2005-04-07
申请人： Anthony R. Hurtado , Erhard Schreck , Duc Banh , Tim Glassburn , Kazuhiro Saito , Scott Hughes , Brian Strom , Richard K. Oswald
发明人： Anthony R. Hurtado , Erhard Schreck , Duc Banh , Tim Glassburn , Kazuhiro Saito , Scott Hughes , Brian Strom , Richard K. Oswald
IPC分类号： G11B27/00 , G11B5/00
CPC分类号： G11B27/36 , G11B5/3133 , G11B5/40 , G11B5/6064 , G11B19/048 , G11B2220/2516 , Y10T29/49025 , Y10T29/49036
摘要： A method for monitoring the operability of a slider of a disk drive includes the steps of providing a slider that includes a read/write head that magnetically interacts with a storage disk, and a slider mover that adjusts a head-to-disk spacing, controlling an electrical stimulus to the slider mover with a drive circuitry, measuring an actual electrical response from the slider mover with the drive circuitry, and comparing the actual electrical response to an expected electrical response to determine an operability status of the slider mover. Further, changes in the actual electrical response can be monitored and used to predict future failure of the slider mover.
摘要翻译：一种用于监视磁盘驱动器的滑动器的可操作性的方法包括以下步骤：提供包括与存储盘磁性相互作用的读/写头的滑块，以及调节磁头到磁盘间距的滑动移动器，控制利用驱动电路对滑块移动器的电刺激，测量来自滑块移动器的驱动电路的实际电响应，以及将实际电响应与预期的电响应进行比较，以确定滑块移动器的可操作性状态。此外，可以监视实际电响应的变化并用于预测滑块移动器的未来故障。

5. 发明授权

US06980383B2 Monitoring of phenomena indicative of PTP in a magnetic disk drive 失效
标题翻译：监视磁盘驱动器中指示PTP的现象
公开(公告)号：US06980383B2
公开(公告)日：2005-12-27
申请号：US10369179
申请日：2003-02-19
申请人： Don Brunnett , Duc Banh , Jingbo Yu , Mark Heimbaugh , Suet Teo , Erhard Schreck
发明人： Don Brunnett , Duc Banh , Jingbo Yu , Mark Heimbaugh , Suet Teo , Erhard Schreck
IPC分类号： G11B5/00 , G11B5/012 , G11B5/02 , G11B5/40 , G11B5/455 , G11B27/36
CPC分类号： G11B5/3136 , G11B5/012 , G11B5/02 , G11B5/40 , G11B5/455 , G11B27/36 , G11B2005/001 , G11B2220/20
摘要： A PTP test subsystem of a magnetic disk drive identifies an undesired pole tip protrusion (PTP) condition, and takes steps to prevent problems associated with PTP. A PTP stressing mechanism stresses the disk drive during a PTP test mode to induce a PTP condition. A disk contact detection circuit detects when a head of the disk drive contacts the disk. A PTP write current determining circuit is also provided which comprises a write current level detector to ascertain a write current level at which the disk contact detection circuit detects when the head of the disk drive contacts the disk while the disk drive is stressed during the PTP test mode.
摘要翻译：磁盘驱动器的PTP测试子系统识别不期望的极尖突起（PTP）条件，并采取措施来防止与PTP相关的问题。 PTP应激机制在PTP测试模式下强制磁盘驱动器以诱导PTP状态。磁盘接触检测电路检测磁盘驱动器的磁头何时接触磁盘。还提供了一种PTP写入电流确定电路，其包括一个写入电平电平检测器，用于确定当PTP测试期间磁盘驱动器受到应力时磁盘驱动器的磁头接触磁盘时磁盘接触检测电路检测到的写入电平水平模式。

6. 发明授权

US07170700B1 Method of determining side track erasure in a disk drive 有权
标题翻译：确定磁盘驱动器中的侧轨道擦除的方法
公开(公告)号：US07170700B1
公开(公告)日：2007-01-30
申请号：US10125657
申请日：2002-04-18
申请人： Gang H. Lin , Erhard Schreck , Kezhao Zhang , Don Brunnett , Duc Banh , Kurt Rusnak , Jingbo Yu , Suet Teo , Nick Warner , John Vicars
发明人： Gang H. Lin , Erhard Schreck , Kezhao Zhang , Don Brunnett , Duc Banh , Kurt Rusnak , Jingbo Yu , Suet Teo , Nick Warner , John Vicars
IPC分类号： G11B27/36 , G11B5/03
CPC分类号： G11B5/024 , G11B20/182 , G11B27/36 , G11B2220/2516
摘要： A method of determining side track erasure in a disk drive having a disk and a transducer. A target track and one or more side tracks proximate to the target track on the disk are selected, and recording parameters for recording signals on the target track and each side track with the transducer are selected. Thereafter, signals are recorded on each side track and then signals are recorded on the target track multiple times. A reduction in the integrity of the recorded signals on each side track due to recording signals on the target track multiple times is detected, and the detected reduction in the integrity of the recorded signals on each side track represents the amount of the erasure of the recorded signals on the side track. Recording parameters are changed based on the signal integrity reduction to minimize side track erasure.
摘要翻译：一种在具有盘和换能器的盘驱动器中确定侧轨道擦除的方法。选择目标轨道和靠近盘上的目标轨道的一个或多个侧轨道，并且选择用于使用换能器在目标轨道和每个侧轨上记录信号的记录参数。此后，信号被记录在每个侧轨道上，然后将信号多次记录在目标轨道上。检测到由于在目标轨道上多次记录信号而导致的每个侧轨道上的记录信号的完整性的降低，并且检测到的每个侧轨道上记录信号的完整性的降低表示记录的擦除量侧轨上的信号。记录参数根据信号完整性降低而改变，以尽量减少侧轨跟踪擦除。

7. 发明授权

US06327150B1 Disk drive test rack with universal electrical connector 失效
标题翻译：带通用电气连接器的磁盘驱动器测试架
公开(公告)号：US06327150B1
公开(公告)日：2001-12-04
申请号：US09501444
申请日：2000-02-10
申请人： Lloyd E. Levy , Duc Banh , Danilo Bueno
发明人： Lloyd E. Levy , Duc Banh , Danilo Bueno
IPC分类号： G06F116
CPC分类号： G11B33/126 , G11B25/043 , G11B33/10
摘要： A disk drive test device for performing a test (e.g., power only self test, tests which use a serial interface) on at least one disk drive at a time. The test device includes an electrical connector which is configured so as to be able to provide the necessary electrical interconnections for executing a test on disk drives having different types of drive interface connectors (i.e., the same electrical connector may be used with at least 2 different types of drive interface connectors). There is no need to use an in-line adapter to electrically interconnect a disk drive having a first drive interface connector or to electrically interconnect a disk drive having a second drive interface connector. There is also is no need to change out the electrical connector when performing a test on disk drives which use this different types of drive interface connectors.
摘要翻译：一种磁盘驱动器测试装置，用于一次执行至少一个磁盘驱动器的测试（例如，仅功率自检，使用串行接口的测试）。测试装置包括电连接器，其被配置为能够提供用于在具有不同类型的驱动接口连接器的磁盘驱动器上执行测试所必需的电互连（即，可以使用相同的电连接器与至少两个不同的驱动器接口连接器类型）。不需要使用在线适配器来电连接具有第一驱动器接口连接器的磁盘驱动器，或者电连接具有第二驱动器接口连接器的磁盘驱动器。在使用这种不同类型的驱动器接口连接器的磁盘驱动器上进行测试时，也不需要更换电连接器。

8. 发明授权

US06473301B1 Disk drive test rack with universal electrical connector 失效
标题翻译：带通用电气连接器的磁盘驱动器测试架
公开(公告)号：US06473301B1
公开(公告)日：2002-10-29
申请号：US09973570
申请日：2001-10-09
申请人： Lloyd E. Levy , Duc Banh , Danilo Bueno
发明人： Lloyd E. Levy , Duc Banh , Danilo Bueno
IPC分类号： G06F116
CPC分类号： G11B33/126 , G11B25/043 , G11B33/10
摘要： A disk drive test device for performing a test (e.g., power only self test, tests which use a serial interface) on at least one disk drive at a time. The test device includes an electrical connector which is configured so as to be able to provide the necessary electrical interconnections for executing a test on disk drives having different types of drive interface connectors (i.e., the same electrical connector may be used with at least 2 different types of drive interface connectors). There is no need to use an in-line adapter to electrically interconnect a disk drive having a first drive interface connector or to electrically interconnect a disk drive having a second drive interface connector. There is also is no need to change out the electrical connector when performing a test on disk drives which use this different types of drive interface connectors.
摘要翻译：一种磁盘驱动器测试装置，用于一次执行至少一个磁盘驱动器的测试（例如，仅功率自检，使用串行接口的测试）。测试装置包括电连接器，其被配置为能够提供用于在具有不同类型的驱动接口连接器的磁盘驱动器上执行测试所必需的电互连（即，可以使用相同的电连接器与至少两个不同的驱动器接口连接器类型）。不需要使用在线适配器来电连接具有第一驱动器接口连接器的磁盘驱动器，或者电连接具有第二驱动器接口连接器的磁盘驱动器。在使用这种不同类型的驱动器接口连接器的磁盘驱动器上进行测试时，也不需要更换电连接器。

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