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1. 发明授权

US06975123B1 Method and apparatus for calibrating piezoelectric driver in dual actuator disk drive 失效
标题翻译：用于校准双驱动器磁盘驱动器中的压电驱动器的方法和装置
公开(公告)号：US06975123B1
公开(公告)日：2005-12-13
申请号：US10028068
申请日：2001-12-20
申请人： Keith Malang , Larry Hutsell
发明人： Keith Malang , Larry Hutsell
IPC分类号： G01R33/12 , G11B5/55 , G11B5/596 , G11B21/24
CPC分类号： G11B5/5552 , G11B5/59627
摘要： A method and apparatus are disclosed which are operable to determine a capacitance associated with at least one piezoelectric element in an dual actuator disk drive. The capacitance information is used to adjust a driver used to drive the piezoelectric element. Capacitance is determined by supplying a predetermined current into the piezoelectric element(s) for a predetermined time period. A voltage associated with the piezoelectric element(s) is measured following the predetermined time period. The capacitance of the piezoelectric element(s) is then calculated based on the measured voltage, the current supplied, and the predetermined time period.
摘要翻译：公开了一种方法和装置，其可操作以确定与双致动器盘驱动器中的至少一个压电元件相关联的电容。电容信息用于调节用于驱动压电元件的驱动器。通过在预定时间段内将预定电流提供给压电元件来确定电容。在预定时间段之后测量与压电元件相关联的电压。然后基于测量的电压，所提供的电流和预定时间段来计算压电元件的电容。

2. 发明授权

US6125000A Disk drive seek control system utilizing predicted motion parameter and dynamic trajectory alignment 失效
标题翻译：磁盘驱动器寻道控制系统利用预测运动参数和动态轨迹对准
公开(公告)号：US6125000A
公开(公告)日：2000-09-26
申请号：US650977
申请日：1996-05-21
申请人： Lance R. Carlson , Mark Birtzer , Larry Hutsell
发明人： Lance R. Carlson , Mark Birtzer , Larry Hutsell
IPC分类号： G11B21/08 , G11B5/596
CPC分类号： G11B21/083
摘要： The present invention relates to a disk drive seek control system which is capable of rapidly moving a transducer from an initial position to a target position above a data storage medium. The system applies control to an actuator motor means based on projected transducer velocity at a future servo sample time rather than velocity at a previous servo sample time. This allows the system to significantly reduce transducer velocity errors relative to a desired velocity profile. In addition, the system utilizes dynamically adapted feed forward deceleration current during a deceleration portion of the seek cycle to further reduce velocity errors during this period. By reducing velocity error during the seek cycle, the system significantly reduces the length of time required for settling the transducer on the target track of the disk after the seek cycle has ended.
摘要翻译：本发明涉及一种磁盘驱动器搜索控制系统，其能够将换能器从初始位置快速移动到数据存储介质上方的目标位置。该系统基于在将来的伺服采样时间而不是先前伺服采样时间的速度下的预测换能器速度将控制应用到致动器马达装置。这允许系统相对于期望的速度分布显着降低换能器速度误差。此外，该系统在搜索周期的减速部分期间利用动态适应的前馈减速电流，以进一步降低在此期间的速度误差。通过在搜索周期中减小速度误差，系统在搜索周期结束后显着减少了在磁盘的目标磁道上建立传感器所需的时间长度。

3. 发明授权

US07423837B2 Micro actuator gain calibration based on a sinusoidal input signal 有权
标题翻译：基于正弦输入信号的微执行器增益校准
公开(公告)号：US07423837B2
公开(公告)日：2008-09-09
申请号：US11682553
申请日：2007-03-06
申请人： Larry Hutsell
发明人： Larry Hutsell
IPC分类号： G11B5/596
CPC分类号： G11B5/556 , G11B5/59633
摘要： Control of micro actuator movement is calibrated in response to a sinusoidal input signal. A response of the micro actuator to the sinusoidal input signal is measured, for example, based on measurement of a change in radial location of a transducer connected to the micro actuator responsive to the sinusoidal input signal. Control of the movement of the micro actuator is calibrated based on the measured response of the micro actuator to the sinusoidal input signal. For example, a gain of a micro actuator control loop that controls movement of the micro actuator may be regulated based on the measured change in radial location of the transducer. Related circuits and devices are also discussed.
摘要翻译：响应于正弦输入信号校准微执行器运动的控制。测量微执行器对正弦输入信号的响应，例如，基于响应于正弦输入信号测量连接到微执行器的传感器的径向位置的变化。基于微执行器对正弦输入信号的测量响应来校准微执行器的运动的控制。例如，可以基于所测量的换能器的径向位置的变化来调节控制微致动器的运动的微致动器控制回路的增益。还讨论了相关电路和器件。

4. 发明授权

US5594600A Dual internal bus system architecture for hard disk drive 失效
标题翻译：用于硬盘驱动器的双内部总线系统架构
公开(公告)号：US5594600A
公开(公告)日：1997-01-14
申请号：US401670
申请日：1995-03-10
申请人： Curt Bruner , Larry Hutsell , Jeff Reh , Robert Metz
发明人： Curt Bruner , Larry Hutsell , Jeff Reh , Robert Metz
IPC分类号： G11B19/00 , G11B19/02 , G11B19/20 , G11B20/10 , G11B21/08 , G11B25/04 , G11B27/30 , G11B33/12 , H02K21/22 , H02K33/16
CPC分类号： G11B33/121 , G11B19/00 , G11B19/022 , G11B19/2009 , G11B25/043 , G11B27/3027 , G11B33/122 , G11B2220/20
摘要： An electronic architecture that provides a portable hard disk drive that can meet the type II PCMCIA specification and which can efficiently operate with a 3.3 V power supply.
摘要翻译：一种电子架构，提供可满足II型PCMCIA规范的便携式硬盘驱动器，可以使用3.3 V电源高效运行。

5. 发明授权

US07468857B2 Acceleration feed-forward correction enabled or disabled based on track follow loop signals 有权
标题翻译：基于跟踪循环信号启用或禁用加速度前馈校正
公开(公告)号：US07468857B2
公开(公告)日：2008-12-23
申请号：US11705518
申请日：2007-02-09
申请人： Larry Hutsell , Dave Finamore , Farhad Navid
发明人： Larry Hutsell , Dave Finamore , Farhad Navid
IPC分类号： G11B21/10 , G11B5/596
CPC分类号： G11B5/5582
摘要： Disturbances to actuator control caused by external vibrations are corrected using feed-forward techniques that are selectively enabled or disabled based on signal values within a track follow loop. An increase in data integrity and reliability may be achieved by reducing off-track reads and writes caused by physical disturbances to disk drives during operation. Accelerometers detect external forces imparted on a disk and an acceleration feed-forward (AFF) signal is generated to compensate for disturbances to the location of a head caused by such external forces. Application of the AFF signal to an actuator may be based on whether signal values along the track follow loop exceed a certain threshold.
摘要翻译：使用基于跟踪循环内的信号值有选择地使能或禁用的前馈技术来校正由外部振动引起的对致动器控制的干扰。数据完整性和可靠性的提高可以通过在操作期间通过减少磁盘驱动器的物理干扰导致的远程读写来实现。加速度计检测传递到盘上的外力，产生加速度前馈（AFF）信号以补偿由这种外力引起的头部位置的干扰。 AFF信号到致动器的应用可以基于沿跟踪循环的信号值是否超过一定阈值。

6. 发明授权

US6104565A System architecture for hard disk drive 有权
标题翻译：硬盘驱动器的系统架构
公开(公告)号：US6104565A
公开(公告)日：2000-08-15
申请号：US223201
申请日：1998-12-30
申请人： Curt Bruner , Larry Hutsell , Jeff Reh , Robert Metz
发明人： Curt Bruner , Larry Hutsell , Jeff Reh , Robert Metz
IPC分类号： G11B19/00 , G11B19/02 , G11B19/20 , G11B20/10 , G11B21/08 , G11B25/04 , G11B27/30 , G11B33/12 , H02K21/22 , H02K33/16
CPC分类号： G11B33/121 , G11B19/00 , G11B19/022 , G11B19/2009 , G11B25/043 , G11B27/3027 , G11B33/122 , G11B2220/20
摘要： An electronic architecture that provides a portable hard disk drive that can meet the type II PCMCIA specification and which can efficiently operate with a 3.3 V power supply. The architecture includes a digital signal processor with a first internal bus for transferring instructions and a second internal bus for transferring data. The digital signal processor performs fetching, decoding, reading and execution routines in parallel while simultaneously receiving data.
摘要翻译：一种电子架构，提供可满足II型PCMCIA规范的便携式硬盘驱动器，可以使用3.3 V电源高效运行。该架构包括具有用于传送指令的第一内部总线的数字信号处理器和用于传送数据的第二内部总线。数字信号处理器在同时接收数据的同时执行并行执行取样，解码，读取和执行程序。

7. 发明申请

US20070223136A1 MICRO ACTUATOR GAIN CALIBRATION BASED ON A SINUSOIDAL INPUT SIGNAL 有权
标题翻译：基于SINUSOIDAL输入信号的微处理器增益校准
公开(公告)号：US20070223136A1
公开(公告)日：2007-09-27
申请号：US11682553
申请日：2007-03-06
申请人： Larry Hutsell
发明人： Larry Hutsell
IPC分类号： G11B5/596 , G11B21/02
CPC分类号： G11B5/556 , G11B5/59633
摘要： Control of micro actuator movement is calibrated in response to a sinusoidal input signal. A response of the micro actuator to the sinusoidal input signal is measured, for example, based on measurement of a change in radial location of a transducer connected to the micro actuator responsive to the sinusoidal input signal. Control of the movement of the micro actuator is calibrated based on the measured response of the micro actuator to the sinusoidal input signal. For example, a gain of a micro actuator control loop that controls movement of the micro actuator may be regulated based on the measured change in radial location of the transducer. Related circuits and devices are also discussed.
摘要翻译：响应于正弦输入信号校准微执行器运动的控制。测量微执行器对正弦输入信号的响应，例如，基于响应于正弦输入信号测量连接到微执行器的传感器的径向位置的变化。基于微执行器对正弦输入信号的测量响应来校准微执行器的运动的控制。例如，可以基于所测量的换能器的径向位置的变化来调节控制微致动器的运动的微致动器控制回路的增益。还讨论了相关电路和器件。

8. 发明申请

US20070188909A1 Acceleration feed-forward correction enabled or disabled based on track follow loop signals 有权
标题翻译：基于跟踪循环信号启用或禁用加速度前馈校正
公开(公告)号：US20070188909A1
公开(公告)日：2007-08-16
申请号：US11705518
申请日：2007-02-09
申请人： Larry Hutsell , Dave Finamore , Farhad Navid
发明人： Larry Hutsell , Dave Finamore , Farhad Navid
IPC分类号： G11B5/596
CPC分类号： G11B5/5582
摘要： Disturbances to actuator control caused by external vibrations are corrected using feed-forward techniques that are selectively enabled or disabled based on signal values within a track follow loop. An increase in data integrity and reliability may be achieved by reducing off-track reads and writes caused by physical disturbances to disk drives during operation. Accelerometers detect external forces imparted on a disk and an acceleration feed-forward (AFF) signal is generated to compensate for disturbances to the location of a head caused by such external forces. Application of the AFF signal to an actuator may be based on whether signal values along the track follow loop exceed a certain threshold.
摘要翻译：使用基于跟踪循环内的信号值有选择地使能或禁用的前馈技术来校正由外部振动引起的对致动器控制的干扰。数据完整性和可靠性的提高可以通过在操作期间通过减少磁盘驱动器的物理干扰导致的远程读写来实现。加速度计检测传递到盘上的外力，产生加速度前馈（AFF）信号以补偿由这种外力引起的头部位置的干扰。 AFF信号到致动器的应用可以基于沿跟踪循环的信号值是否超过一定阈值。

9. 发明授权

US5914828A System architecture for HDD 失效
标题翻译： HDD的系统架构
公开(公告)号：US5914828A
公开(公告)日：1999-06-22
申请号：US762944
申请日：1996-12-10
申请人： Curt Bruner , Larry Hutsell , Jeff Reh , Robert Metz
发明人： Curt Bruner , Larry Hutsell , Jeff Reh , Robert Metz
IPC分类号： G11B19/00 , G11B19/02 , G11B19/20 , G11B20/10 , G11B21/08 , G11B25/04 , G11B27/30 , G11B33/12 , H02K21/22 , H02K33/16
CPC分类号： G11B33/121 , G11B19/00 , G11B19/022 , G11B19/2009 , G11B25/043 , G11B27/3027 , G11B33/122 , G11B2220/20
摘要： An electronic architecture that provides a portable hard disk drive that can meet the type II PCMCIA specification and which can efficiently operate with a 3.3 V power supply.
摘要翻译：一种电子架构，提供可满足II型PCMCIA规范的便携式硬盘驱动器，可以使用3.3 V电源高效运行。

10. 发明授权

US5491395A TUT servo IC architecture 失效
标题翻译： TUT伺服IC架构
公开(公告)号：US5491395A
公开(公告)日：1996-02-13
申请号：US123325
申请日：1993-09-17
申请人： Larry Hutsell , Curt Bruner , Jeff Reh , Glenn Albert
发明人： Larry Hutsell , Curt Bruner , Jeff Reh , Glenn Albert
IPC分类号： G11B19/00 , G11B19/20 , G11B21/10 , G11B33/12 , G11B21/02
CPC分类号： G11B33/121 , G11B19/00 , G11B19/20 , G11B21/106
摘要： An integrated servo circuit that controls the spin motor and voice coil motor of a hard disk drive in response to digital commands that are generated by a microprocessor based controller chip. The servo chip contains a spin motor control circuit and a voice coil control circuit that control the speed of the spin motor and the position of the actuator arm, respectively. The spin motor and voice coil motor control circuits are coupled to a digital to analog converter which converts the digital commands from the controller chip into analog control signals which are utilized to control the spin motor and voice coil motor. Additionally, the servo chip has an analog to digital converter to convert analog signals, such as the servo burst signals, to digital bit strings that relayed to the controller chip. The controller chip and servo chip communicate through a 16 bit synchronous serial port.
摘要翻译：一种集成伺服电路，其响应于由基于微处理器的控制器芯片产生的数字命令来控制硬盘驱动器的旋转电机和音圈电机。伺服芯片包括分别控制旋转马达的速度和致动器臂的位置的旋转马达控制电路和音圈控制电路。旋转电动机和音圈电动机控制电路耦合到数模转换器，其将来自控制器芯片的数字命令转换成用于控制旋转电动机和音圈电动机的模拟控制信号。此外，伺服芯片具有模拟数字转换器，用于将诸如伺服脉冲串信号的模拟信号转换成中继到控制器芯片的数字位串。控制器芯片和伺服芯片通过16位同步串口进行通信。

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