公开(公告)号：US06952322B1

公开(公告)日：2005-10-04

申请号：US10307068

申请日：2002-11-27

申请人： Raffi Codilian ,  George J. Bennett

发明人： Raffi Codilian ,  George J. Bennett

IPC分类号： G11B5/55 ,  G11B5/596

CPC分类号： G11B5/5582 ,  G11B5/59694

摘要： A disk drive is disclosed comprising a first disk surface and a second disk surface, wherein a first head is actuated radially over the first disk surface and a second head is actuated radially over the second disk surface. Each disk surface comprises a plurality of tracks, wherein each track comprises a plurality of data sectors for storing user data and N embedded servo sectors for storing servo data. The N embedded servo sectors on the tracks on the first disk surface are recorded at a physical angular offset from the N embedded servo sectors on the tracks on the second disk surface. While accessing a track on the first disk surface through the first head, the servo data on the first disk surface is read through the first head and the servo data on the second disk surface is read through the second head, thereby increasing the servo sample rate.

摘要翻译： 公开了一种磁盘驱动器，其包括第一磁盘表面和第二磁盘表面，其中第一磁头在第一磁盘表面上径向地致动，而第二磁头在第二磁盘表面上被径向致动。 每个盘表面包括多个轨道，其中每个轨道包括用于存储用户数据的多个数据扇区和用于存储伺服数据的N个嵌入式伺服扇区。 在第一盘表面上的轨道上的N个嵌入式伺服扇区被记录在与第二盘表面上的轨道上的N个嵌入式伺服扇区的物理角度偏移处。 当通过第一磁头访问第一磁盘表面上的轨道时，通过第一磁头读取第一磁盘表面上的伺服数据，并且通过第二磁头读取第二磁盘表面上的伺服数据，从而增加伺服采样率 。

公开(公告)号：US06731450B1

公开(公告)日：2004-05-04

申请号：US09728550

申请日：2000-11-30

申请人： Raffi Codilian ,  George J. Bennett

发明人： Raffi Codilian ,  George J. Bennett

IPC分类号： G11B1518

CPC分类号： G11B33/144

摘要： A hard disk drive comprising an actuator control system that measures the temperature of an actuator coil and methods for providing the same. The control system comprises a controller and a current source controlled by the controller that generates a flow of current through the actuator so as to reposition a transducer of the drive. The control system further comprises sampling means for sampling at least one electrical characteristic of a conducting path defined by the coil. The control system measures the temperature by monitoring the current flowing through the coil and/or the voltage across the coil and by extracting the coil temperature from the monitored values. In one embodiment, the control system obtains a measurement of the coil by successively approximating the resistance of the coil until an estimated back emf component of the voltage across the coil.

摘要翻译： 包括测量致动器线圈的温度的致动器控制系统的硬盘驱动器及其提供方法。 控制系统包括控制器和由控制器控制的电流源，其产生通过致动器的电流，以便重新定位驱动器的换能器。 控制系统还包括用于采样由线圈限定的导电路径的至少一个电特性的采样装置。 控制系统通过监测流过线圈的电流和/或线圈两端的电压并通过从监测值中提取线圈温度来测量温度。 在一个实施例中，控制系统通过连续逼近线圈的电阻直到线圈两端的电压的估计的反电动势分量来获得线圈的测量值。

公开(公告)号：US5808440A

公开(公告)日：1998-09-15

申请号：US753232

申请日：1996-11-22

申请人： George J. Bennett ,  Raffi Codilian

发明人： George J. Bennett ,  Raffi Codilian

IPC分类号： G11B19/20 ,  G11B21/21 ,  H02P6/08 ,  H02P6/14 ,  H02P1/26

CPC分类号： H02P6/14 ,  G11B19/20 ,  H02P6/085 ,  G11B21/21

摘要： Commutation is the process of driving current through the windings to produce a rotating magnetic field that the rotor attempts to catch. Typically, four to six commutation cycles occur for each rotation of the rotor of the motor. Unlike traditional commutation methods where only six phases are commutated during one commutation cycle, the hybrid commutation cycle includes 12 phases. The particular method for commutation switches between current driving modes where one driving mode drives current through all three windings and an other driving mode drives current through less than all three windings of the motor. More particularly, in the second driving mode current is driven through two windings of the motor. During a commutation cycle, these driving modes are alternated.

摘要翻译： 换向是通过绕组驱动电流以产生转子试图捕获的旋转磁场的过程。 通常，电动机的转子的每次旋转都会发生四到六个换向循环。 与传统的换向方法不同，传统的换相方法在一个换相循环中只有六相换向，混合换流循环包括12个阶段。 用于换向的特定方法在当前驱动模式之间切换，其中一个驱动模式通过所有三个绕组驱动电流，另一个驱动模式通过电动机的所有三个绕组驱动电流。 更具体地，在第二驱动模式中，电流通过电动机的两个绕组被驱动。 在换向循环期间，这些驱动模式是交替的。

公开(公告)号：US08912778B1

公开(公告)日：2014-12-16

申请号：US12534072

申请日：2009-07-31

申请人： George J. Bennett ,  Steven R. Vasquez

发明人： George J. Bennett ,  Steven R. Vasquez

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M2001/0025

摘要： A switching voltage regulator is disclosed including a charging element operable to generate an output voltage. The charging element is configured during a cycle, including to charge the charging element for an on-time, discharge the charging element for a discharge time, and tristate the charging element for a tristate time. Prior to a power mode changing which increases the current demand of the load, the on-time is increased.

摘要翻译： 公开了一种开关电压调节器，其包括可操作以产生输出电压的充电元件。 充电元件在一个循环期间被配置，包括对充电元件进行导通时间的充电，对充电元件放电放电时间，并将充电元件三态三态时间。 在增加负载的当前需求的功率模式改变之前，导通时间增加。

公开(公告)号：US08324974B1

公开(公告)日：2012-12-04

申请号：US12972121

申请日：2010-12-17

申请人： George J. Bennett

发明人： George J. Bennett

IPC分类号： H03K3/03 ,  G05F1/40 ,  G05F1/56

CPC分类号： H03K3/0315 ,  G06F1/08 ,  G06F1/324 ,  Y02D10/126

摘要： A computing device is disclosed comprising digital circuitry fabricated on a multi-layer integrated circuit including a first layer and a second layer, and a multi-layer ring oscillator operable to generate a propagation delay frequency representing a propagation delay of the integrated circuit, wherein the multi-layer ring oscillator comprises a first interconnect fabricated on the first layer and a second interconnect fabricated on the second layer. The propagation delay frequency is compared to a reference frequency to generate a frequency error, and at least one of a supply voltage and a clocking frequency applied to the digital circuitry is adjusted in response to the frequency error.

摘要翻译： 公开了一种计算设备，其包括在包括第一层和第二层的多层集成电路上制造的数字电路，以及可操作以产生表示集成电路的传播延迟的传播延迟频率的多层环形振荡器，其中， 多层环形振荡器包括在第一层上制造的第一互连和在第二层上制造的第二互连。 将传播延迟频率与参考频率进行比较以产生频率误差，并且响应于频率误差来调整施加到数字电路的电源电压和时钟频率中的至少一个。

公开(公告)号：US07495857B1

公开(公告)日：2009-02-24

申请号：US11322907

申请日：2005-12-30

申请人： George J. Bennett

发明人： George J. Bennett

IPC分类号： G11B21/02 ,  G11B5/596

CPC分类号： G11B5/59633 ,  G11B5/59638 ,  G11B5/59661

摘要： A disk drive is disclosed including a disk, an actuator arm, a head attached to a distal end of the actuator arm, a mechanical position sensor operable to generate a position signal representing a position of the head relative to the disk, and a voice coil motor for rotating the actuator arm about a pivot. The disk is rotated at a predetermined velocity, a control signal is generated in response to the position signal generated by the mechanical position sensor, and the control signal is applied to the voice coil motor in order to seek the head radially over the disk while writing a spiral track to the disk. The spiral track is then processed to maintain the head along a servo track while writing product servo sectors along the servo track.

摘要翻译： 公开了一种磁盘驱动器，包括盘，致动器臂，附接到致动器臂的远端的头部，可操作以产生表示头相对于盘的位置的位置信号的机械位置传感器，以及音圈 用于使致动器臂围绕枢轴旋转的电动机。 盘以预定速度旋转，响应于由机械位置传感器产生的位置信号而产生控制信号，并且控制信号被施加到音圈电机，以便在写入时径向寻找磁头 一个螺旋轨道到磁盘。 然后处理螺旋轨道以沿伺服轨道保持头部，同时沿着伺服轨迹书写产品伺服扇区。

公开(公告)号：US06847504B1

公开(公告)日：2005-01-25

申请号：US10137227

申请日：2002-04-30

申请人： George J. Bennett ,  Charles R. Patton, III

发明人： George J. Bennett ,  Charles R. Patton, III

IPC分类号： G11B5/48 ,  G11B5/596

CPC分类号： G11B5/4833 ,  G11B5/4813

摘要： A split actuator comprising two spring coupled actuators that share a common pivot bearing. The two reduced inertia actuators permit overlapping motions during a seek operation thereby reducing dead times in transfer of data between disk and transducers disposed on the actuators. A spring member that spring couples the two actuators boosts relative motions by storing and releasing spring potential energy selectively. The spring member is also configured so as to substantially restrict the relative motions of the two actuators to rotational motions about a common axis of the common pivot bearing. Rigidity of the spring member to non-rotational relative motions, as well as tuning of the spring member to provide a rigid response to selected frequencies, the spring member in conjunction with the common pivot bearing result in mechanical disturbance being substantially common to the two actuators, thereby allowing predictable and manageable disturbance corrections.

摘要翻译： 分体致动器包括共享共同枢转轴承的两个弹簧联接致动器。 两个减小的惯性致动器在搜索操作期间允许重叠运动，从而减少在设置在致动器上的盘和换能器之间的数据传送中的死区时间。 弹簧连接两个执行器的弹簧构件通过有选择地储存和释放弹簧势能来增加相对运动。 弹簧构件还被构造成基本上限制两个致动器相对于公共枢转轴承的公共轴线的旋转运动的相对运动。 弹簧构件对非旋转相对运动的刚度以及弹簧构件的调谐以提供对所选频率的刚性响应，弹簧构件与公共枢转轴承结合导致机械扰动基本上与两个致动器共同 ，从而允许可预测和可管理的干扰校正。

公开(公告)号：US20130070363A1

公开(公告)日：2013-03-21

申请号：US13239176

申请日：2011-09-21

申请人： George J. Bennett ,  Steven R. Vasquez ,  Robert P. Ryan

发明人： George J. Bennett ,  Steven R. Vasquez ,  Robert P. Ryan

IPC分类号： G11B15/48

CPC分类号： G06F11/0727 ,  G11B19/041 ,  G11B19/2063 ,  G11B19/2081 ,  G11B2220/2516 ,  G11B2220/45 ,  G11B2220/63

摘要： Some embodiments of the invention are directed to a data storage system that includes a disk and solid-state non-volatile memory (NVM). During a power failure, the data storage system may use back EMF (BEMF) voltage from the spindle motor of the disk to park the heads of the disk and/or store data in the NVM. In one embodiment, a demand regulation circuit regulates loads that use voltage generated from the BEMF. The demand regulation circuit may be used to selectively cause a controller to adjust the rate of programming to the NVM in order to reduce the load. For example, the demand regulation circuit may assert a throttle signal to the controller upon detecting that the voltage generated from the BEMF is below a certain threshold. Programming rate may be throttled, programming cycles may be staggered, and/or programming time may be lengthened. Throttling may enable the use of smaller circuitry.

摘要翻译： 本发明的一些实施例涉及包括盘和固态非易失性存储器（NVM）的数据存储系统。 在电源故障期间，数据存储系统可以使用来自磁盘的主轴电机的反电动势（BEMF）电压来停放磁盘头和/或将数据存储在NVM中。 在一个实施例中，需求调节电路调节使用从BEMF产生的电压的负载。 可以使用需求调节电路来选择性地使控制器调整对NVM的编程速率，以便减少负载。 例如，当检测到从BEMF产生的电压低于某个阈值时，需求调节电路可以向控制器断言油门信号。 编程速率可能会被限制，编程周期可能会交错，和/或编程时间可能会延长。 节流可以使用更小的电路。

公开(公告)号：US08090902B1

公开(公告)日：2012-01-03

申请号：US12471104

申请日：2009-05-22

申请人： George J. Bennett ,  Steven R. Vasquez

发明人： George J. Bennett ,  Steven R. Vasquez

IPC分类号： G06F13/00

CPC分类号： G11B5/5565

摘要： A disk drive is disclosed comprising a disk having a plurality of tracks, wherein each track comprises a plurality of data sectors. The disk drive further comprises a head actuated over the disk, and control circuitry fabricated on a die. A plurality of disk access commands are received from a host and stored in a command queue, wherein each disk access command identifies at least one data sector. A temperature of the die is determined, and a first disk access command is selected from the command queue in response to the die temperature.

摘要翻译： 公开了一种磁盘驱动器，其包括具有多个磁道的磁盘，其中每个磁道包括多个数据扇区。 磁盘驱动器还包括在磁盘上致动的磁头和在芯片上制造的控制电路。 从主机接收多个磁盘访问命令并将其存储在命令队列中，其中每个磁盘访问命令识别至少一个数据扇区。 确定管芯的温度，并且响应于管芯温度从命令队列中选择第一盘存取命令。

公开(公告)号：US07486060B1

公开(公告)日：2009-02-03

申请号：US11393425

申请日：2006-03-30

申请人： George J. Bennett

发明人： George J. Bennett

IPC分类号： G05F1/40 ,  G05F1/56

CPC分类号： H02M3/156 ,  H02M2001/0025

摘要： A switching voltage regulator is disclosed for regulating a voltage supplied to system circuitry. The switching voltage regulator comprises an oscillator operable to generate an oscillator signal representing a gate speed of a reference circuit in the system circuitry, and a frequency generator operable to generate a reference signal representing a target gate speed of the reference circuit. A cycle comparator compares at least one cycle of the oscillator signal to at least one cycle of the reference signal, and switching circuitry charges a charging element based at least on part on the comparison.

摘要翻译： 公开了一种用于调节提供给系统电路的电压的开关电压调节器。 开关电压调节器包括可操作以产生表示系统电路中的参考电路的栅极速度的振荡器信号的振荡器，以及用于产生表示参考电路的目标栅极速度的参考信号的频率发生器。 循环比较器将振荡器信号的至少一个周期与参考信号的至少一个周期进行比较，并且开关电路至少部分地基于比较对充电元件充电。