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1. 发明申请

US20150162035A1 DISCONTINUOUS CHARGE/DISCHARGE POWER SOURCE FOR RETRACT APPLICATION 有权
标题翻译：不连续充电/放电电源用于退回应用
公开(公告)号：US20150162035A1
公开(公告)日：2015-06-11
申请号：US14103396
申请日：2013-12-11
申请人： Seagate Technology LLC
发明人： Shuang Quan Min , June Christian Ang , Tze Ming Jimmy Pang , Kian Keong Ooi
IPC分类号： G11B5/55
CPC分类号： G11B5/5565 , G11B5/54 , G11B5/553
摘要： In accordance with one embodiment of the described technology, a retract controller capacitor is charged using a back electromagnetic force voltage to produce a backup power source voltage, the retract controller capacitor is discharged to power a retract controller circuit, and an actuator arm of a storage drive is driven toward a desired location concurrently with the discharging operation.
摘要翻译：根据所述技术的一个实施例，使用背面电磁力电压对缩回控制电容器进行充电以产生备用电源电压，放电控制器电容器被放电以为后退控制器电路供电，并且存储器的致动器臂驱动器与放电操作同时被驱动到期望的位置。

2. 发明授权

US07800324B2 Continuous mode velocity control of voice coil motor 有权
标题翻译：音圈电机连续模式速度控制
公开(公告)号：US07800324B2
公开(公告)日：2010-09-21
申请号：US12069686
申请日：2008-02-12
申请人： Kaufik Linggajaya , Hin Sing Fong
发明人： Kaufik Linggajaya , Hin Sing Fong
IPC分类号： H02P6/00
CPC分类号： G11B5/553
摘要： A method of controlling the velocity of a voice coil motor (VCM), including sensing a voltage difference between the VCM and a sense resistor and driving a velocity control loop (VCL) based on the voltage difference. There is also a control loop circuit, including a current output connected to drive a voice coil motor, the voice coil motor producing a back electromagnetic field (BEMF) voltage. The circuit also includes a sense resistor connected to the BEMF output, and a BEMF resistive network comprising a first resistor and a second resistor. The circuit also includes a velocity control loop (VCL) connected to control the voltage output according to a voltage difference between (i) a junction of the sense resistor and the current output and (ii) a junction of the first resistor and the second resistor.
摘要翻译：一种控制音圈电机（VCM）速度的方法，包括感测VCM和检测电阻之间的电压差，并基于电压差驱动速度控制回路（VCL）。还有一个控制回路电路，包括连接到驱动音圈电机的电流输出，音圈电机产生反向电磁场（BEMF）电压。该电路还包括连接到BEMF输出的感测电阻器和包括第一电阻器和第二电阻器的BEMF电阻网络。电路还包括速度控制回路（VCL），其连接以根据（i）检测电阻器的接点和电流输出之间的电压差来控制电压输出，以及（ii）第一电阻器和第二电阻器的接点。

3. 发明授权

US07212385B2 Ferromagnetic tunnel magnetoresistive devices and magnetic head 失效
标题翻译：铁磁隧道磁阻器件和磁头
公开(公告)号：US07212385B2
公开(公告)日：2007-05-01
申请号：US11486115
申请日：2006-07-14
申请人： Jun Hayakawa
发明人： Jun Hayakawa
IPC分类号： G11B5/39
CPC分类号： H01L43/08 , B82Y10/00 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/39 , G11B5/3903 , G11B5/3909 , G11B5/3951 , G11B5/3967 , G11B5/553 , G11B5/59683 , G11B2005/0018 , H01F10/00 , H01F10/1936 , H01F10/3254 , H01F10/3263 , H01F10/3268
摘要： The present invention provides a ferromagnetic tunnel magnetoresistive film which is associated with a high output and whose magnetoresistive ratio is less dependent on a bias voltage. In a three-terminal ferromagnetic tunnel magnetoresistive element, a decrease in an output is suppressed by a bias voltage V1 applied to one of the tunnel junctions. By employing half-metallic ferromagnets 11 and 12 in the element, the output can be enhanced and the dependency on the applied bias voltage can be reduced.
摘要翻译：本发明提供一种铁磁隧道磁阻膜，其与高输出相关联，并且其磁阻比不太依赖于偏置电压。在三端铁磁隧道磁阻元件中，通过施加到一个隧道结的偏置电压V 1 1来抑制输出的减小。通过在元件中采用半金属铁磁体11和12，可以提高输出，并且可以降低对所施加的偏置电压的依赖性。

4. 发明申请

US20060256480A1 Ferromagnetic tunnel magnetoresistive devices and magnetic head 失效
公开(公告)号：US20060256480A1
公开(公告)日：2006-11-16
申请号：US11486115
申请日：2006-07-14
申请人： Jun Hayakawa
发明人： Jun Hayakawa
IPC分类号： G11B5/33
CPC分类号： H01L43/08 , B82Y10/00 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/39 , G11B5/3903 , G11B5/3909 , G11B5/3951 , G11B5/3967 , G11B5/553 , G11B5/59683 , G11B2005/0018 , H01F10/00 , H01F10/1936 , H01F10/3254 , H01F10/3263 , H01F10/3268
摘要： The present invention provides a ferromagnetic tunnel magnetoresistive film which is associated with a high output and whose magnetoresistive ratio is less dependent on a bias voltage. In a three-terminal ferromagnetic tunnel magnetoresistive element, a decrease in an output is suppressed by a bias voltage V1 applied to one of the tunnel junctions. By employing half-metallic ferromagnets 11 and 12 in the element, the output can be enhanced and the dependency on the applied bias voltage can be reduced.

5. 发明授权

US07106551B2 Method and apparatus for noise reduction during seeks using signal blending 有权
标题翻译：使用信号混合寻求噪声降低的方法和装置
公开(公告)号：US07106551B2
公开(公告)日：2006-09-12
申请号：US11011797
申请日：2004-12-14
申请人： Feei Y. Chung
发明人： Feei Y. Chung
IPC分类号： G11B5/596
CPC分类号： G11B5/553
摘要： The blending of control indicators of a non-linear seek mode control and settle mode is done in a transition period between a non-linear seek mode and settle mode of the arm actuator in a hard disk drive. Such a blended transition avoids acoustical clicking that can occur for short distance seeks.
摘要翻译：非线性搜索模式控制和稳定模式的控制指示符的混合是在硬盘驱动器中的臂执行器的非线性搜索模式和结算模式之间的过渡期间完成的。这种混合转换避免了短距离寻找可能发生的声音点击。

6. 发明授权

US07099126B2 Ferromagnetic tunnel magnetoresistive devices and magnetic head 失效
标题翻译：铁磁隧道磁阻器件和磁头
公开(公告)号：US07099126B2
公开(公告)日：2006-08-29
申请号：US11353028
申请日：2006-02-14
申请人： Jun Hayakawa
发明人： Jun Hayakawa
IPC分类号： G11B5/39
CPC分类号： H01L43/08 , B82Y10/00 , B82Y25/00 , G01R33/093 , G01R33/098 , G11B5/39 , G11B5/3903 , G11B5/3909 , G11B5/3951 , G11B5/3967 , G11B5/553 , G11B5/59683 , G11B2005/0018 , H01F10/00 , H01F10/1936 , H01F10/3254 , H01F10/3263 , H01F10/3268
摘要： The present invention provides a ferromagnetic tunnel magnetoresistive film which is associated with a high output and whose magnetoresistive ratio is less dependent on a bias voltage. In a three-terminal ferromagnetic tunnel magnetoresistive element, a decrease in an output is suppressed by a bias voltage V1 applied to one of the tunnel junctions. By employing half-metallic ferromagnets 11 and 12 in the element, the output can be enhanced and the dependency on the applied bias voltage can be reduced.
摘要翻译：本发明提供一种铁磁隧道磁阻膜，其与高输出相关联，并且其磁阻比不太依赖于偏置电压。在三端铁磁隧道磁阻元件中，通过施加到一个隧道结的偏置电压V 1 1来抑制输出的减小。通过在元件中采用半金属铁磁体11和12，可以提高输出，并且可以降低对所施加的偏置电压的依赖性。

7. 发明申请

US20050268132A1 Method of controlling idle mode of hard disc drive and apparatus therefor 审中-公开
标题翻译：控制硬盘驱动器空闲模式的方法及其设备
公开(公告)号：US20050268132A1
公开(公告)日：2005-12-01
申请号：US11060601
申请日：2005-02-18
申请人： Sung-joong Yun , Jin-wan Jun
发明人： Sung-joong Yun , Jin-wan Jun
IPC分类号： G06F1/32 , G06F3/06 , G11B5/00 , G11B5/54 , G11B5/55 , G11B19/00 , G11B19/28 , G11B21/12 , G11B25/04 , G11B33/12 , G06F1/30
CPC分类号： G11B5/553 , G06F1/3203 , G06F1/3268 , G11B5/54 , G11B19/28 , G11B21/12 , G11B25/043 , Y02D10/154 , Y02D50/20
摘要： A method of setting an idle operation mode of an hard disc drive (HDD) according to a power type used by a host system, and an apparatus suitable for the idle operation mode setting method, a method of setting a waiting time until a head is unloaded from an idle state of the HDD, and an apparatus suitable for the waiting time setting method, the method including, if a power source used by a host system combined with the HDD is a general-use power source, prohibiting the use of a power saving operation mode even though the HDD is in an idle state; and if the power source used by the host system is a battery, allowing the use of the power saving operation mode when the HDD is in the idle state. The method of controlling an idle operation mode of an HDD allows performance of the HDD to be maintained by not unloading a head when a power source that a host system is using is a general-use power source.
摘要翻译：一种根据主机系统使用的电源类型设置硬盘驱动器（HDD）的空闲操作模式的方法，以及适用于空闲操作模式设置方法的装置，设置等待时间直到头部为止的方法从HDD的空闲状态卸载，以及适用于等待时间设定方法的装置，所述方法包括：如果与HDD组合的主机系统使用的电源是通用电源，则禁止使用即使HDD处于空闲状态，省电操作模式; 并且如果主机系统使用的电源是电池，则当HDD处于空闲状态时允许使用省电模式。控制HDD的空闲操作模式的方法允许当主机系统正在使用的电源是通用电源时，通过不卸载磁头来维持HDD的性能。

8. 发明申请

US20040027088A1 Magnetic disk drive and voice coil motor drive circuit 失效
标题翻译：磁盘驱动器和音圈电机驱动电路
公开(公告)号：US20040027088A1
公开(公告)日：2004-02-12
申请号：US10633720
申请日：2003-08-05
发明人： Jiro Abe , Yosuke Hamada
IPC分类号： G05F001/10
CPC分类号： G11B5/553 , G11B5/5547
摘要： A magnetic disk drive that drives and positions an actuator using a voice coil motor, includes a current sensing resistor connected in series to a terminal on current input side of the voice coil motor, a first operational amplifier and a second operational amplifier. The magnetic disk drive further includes one of a third operational amplifier and a microcomputer.
摘要翻译：使用音圈电机驱动和定位致动器的磁盘驱动器包括与音圈电动机的电流输入侧的端子串联的电流检测电阻器，第一运算放大器和第二运算放大器。磁盘驱动器还包括第三运算放大器和微计算机之一。

9. 发明授权

US06611118B2 Magnetic disk drive and voice coil motor drive circuit 失效
标题翻译：磁盘驱动器和音圈电机驱动电路
公开(公告)号：US06611118B2
公开(公告)日：2003-08-26
申请号：US09953903
申请日：2001-09-18
申请人： Jiro Abe , Yosuke Hamada
发明人： Jiro Abe , Yosuke Hamada
IPC分类号： H02P540
CPC分类号： G11B5/553 , G11B5/5547
摘要： A magnetic disk drive uses a back electromotive force sensor that detects the back electromotive force produced in a VCM actuator without being affected by fast changes of current during a high-speed control sampling cycle, and that enables configuration of a fast, high-band speed control system. A back electromotive force sensor for disk drives has a first circuit that detests the coil terminal voltage of a voice coil motor and outputs that value as a band limited signal that is a constant multiple-of that value, a second circuit that detects a drive current in the voice coil motor and outputs a voltage signal proportional to that drive current, and a computation circuit that takes the difference between the output of said first circuit and the output of said second circuit.
摘要翻译：磁盘驱动器使用反电动势传感器，其检测在VCM致动器中产生的反电动势，而不受高速控制采样周期期间电流的快速变化的影响，并且能够配置快速，高带速控制系统。用于磁盘驱动器的反电动势传感器具有第一电路，其将音圈电动机的线圈端电压抑制，并输出该值作为该值的常数倍数的频带限制信号;检测驱动电流的第二电路在所述音圈电动机中输出与所述驱动电流成比例的电压信号，以及计算电路，其将所述第一电路的输出与所述第二电路的输出之间的差作为参考。

10. 发明授权

US06407876B1 Magnetic disk apparatus having an accelerometer for detecting acceleration in the positioning direction of the magnetic head 失效
标题翻译：具有用于检测磁头的定位方向的加速度的加速度计的磁盘装置
公开(公告)号：US06407876B1
公开(公告)日：2002-06-18
申请号：US09986298
申请日：2001-11-08
申请人： Takashi Yamaguchi , Katsuhiro Tsuneta , Katsumoto Onoyama , Tsuyoshi Arai , Yoshikatsu Fujii , Hidehiko Numasato , Yosuke Hamada , Masahito Kobayashi
发明人： Takashi Yamaguchi , Katsuhiro Tsuneta , Katsumoto Onoyama , Tsuyoshi Arai , Yoshikatsu Fujii , Hidehiko Numasato , Yosuke Hamada , Masahito Kobayashi
IPC分类号： G11B2102
CPC分类号： G11B5/553
摘要： A sector servo type magnetic disk apparatus is provided with, in addition to servo signals, a sensor such as an accelerometer for detecting a state of a magnetic head or a support for the magnetic head at a period shorter than a sampling period of the servo signals. Since an accelerometer mounted on the magnetic head or the support for the magnetic head detects an acceleration, the control performance of a servo control system can be improved, such as reduction of generation of mechanism resonance vibrations of a carriage and improvement on detection precision of a speed signal.
摘要翻译：除了伺服信号之外，扇区伺服型磁盘装置还设置有诸如用于在短于伺服信号的采样周期的时间段内检测磁头的状态或磁头的支撑的诸如加速度计的传感器。由于安装在磁头上的加速度计或磁头支撑件检测到加速度，所以可以提高伺服控制系统的控制性能，例如减少滑架的机构共振振动的产生，提高检测精度速度信号。

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