公开(公告)号：US06438431B1

公开(公告)日：2002-08-20

申请号：US09133161

申请日：1998-08-12

申请人： Qing-Guo Wang ,  Chang Chieh Hang ,  Qiang Bi

发明人： Qing-Guo Wang ,  Chang Chieh Hang ,  Qiang Bi

IPC分类号： G05B1302

CPC分类号： G05B13/042

摘要： Briefly, a preferred embodiment of the present invention includes an apparatus for tuning a regulator in a process controller. The digitized output from a standard relay and a parasitic relay are fed through digital to analog converter providing signals at 0.5&ohgr;c, &ohgr;c and 1.5&ohgr;c to the process, where &ohgr;c is the process critical frequency. The apparatus records the digitized relay output u′ and the digitized process output y′ until stationary oscillations are reached. The outputs u′ and y′ are then used to calculate the process frequency response at 0.50&ohgr;c, &ohgr;c and 1.5&ohgr;c. This data is then used to design the regulator, the output of which is converted to analog form and inputted to control the process.

摘要翻译： 简而言之，本发明的一个优选实施例包括用于调整过程控制器中的调节器的装置。 标准继电器和寄生继电器的数字化输出通过数字到模拟转换器提供，以0.5megac，ωgac和1.5omegac提供信号，其中omegac是过程临界频率。 该装置记录数字化继电器输出u'和数字化处理输出y'，直到达到稳定振荡。 然后输出u'和y'用于计算0.50omegac，ωgac和1.5omegac处理频率响应。 然后将该数据用于设计调节器，其输出转换为模拟形式并输入以控制过程。

公开(公告)号：US20080304172A1

公开(公告)日：2008-12-11

申请号：US12181295

申请日：2008-07-28

申请人： Qiang Bi ,  KianKeong Ooi ,  TaiVie Chiang ,  WingKong Chiang ,  Edmun ChianSong Seng ,  Jimmy Pang ,  BengWee Quak ,  UttHeng Kan ,  Xiong Liu ,  Ricardo SoonLian Lim ,  Patrick TaiHeng Wong ,  MingZhong Ding ,  WeiMing Yeow

发明人： Qiang Bi ,  KianKeong Ooi ,  TaiVie Chiang ,  WingKong Chiang ,  Edmun ChianSong Seng ,  Jimmy Pang ,  BengWee Quak ,  UttHeng Kan ,  Xiong Liu ,  Ricardo SoonLian Lim ,  Patrick TaiHeng Wong ,  MingZhong Ding ,  WeiMing Yeow

IPC分类号： G11B5/09

CPC分类号： G11B5/59655

摘要： A storage medium format is provided having a first band of a plurality of consecutive data storage tracks having user data stored thereto, a second band of a plurality of consecutive data storage tracks having other user data stored thereto, and a guard track medially disposed therebetween the first band and the second band and having system data stored thereto.

摘要翻译： 提供一种存储介质格式，其具有多个连续数据存储轨道的第一频带，其中存储有用户数据，多个连续数据存储轨道的第二频带，其中存储有其他用户数据，以及中间地设置在其间的保护轨道 第一频带和第二频带，并且存储有系统数据。

公开(公告)号：US20070176490A1

公开(公告)日：2007-08-02

申请号：US11512733

申请日：2006-08-30

申请人： Gang He ,  Qiang Bi ,  Junjie Tang ,  Qing Gao

发明人： Gang He ,  Qiang Bi ,  Junjie Tang ,  Qing Gao

IPC分类号： B60L1/00

CPC分类号： B66C19/007 ,  B60L50/13 ,  B66C13/22 ,  Y02T10/70 ,  Y02T10/7077

摘要： An energy-saving control system of rubber-tyred container gantry crane, wherein the diesel engine-electric generator set is controlled to stop when the crane is idle, and a storage device is utilized to supply power to an auxiliary system of the crane, the system comprises: a monitor unit, a charger, a super capacitor, a capacitor monitor module and an inverter. A charge signal is transmitted by the monitor unit when the crane being at an idle state is decided, the charge signal is received by the capacitor monitor module thereby a charge start signal is transmitted to control the charging of the super capacitor by the charger; the diesel engine-electric generator set is controlled to stop or to slow down when the super capacitor has been fully charged being detected by the monitor unit, the super capacitor is used for supplying the power to the auxiliary system of the crane, the direct current of the super capacitor is converted by the inverter to alternating current for supplying the auxiliary system. The energy-saving control system allows RTG to turn off the diesel engine-electric generator set and to implement the operation intermittently, the oil-saving rate of the entire RTG can reach above 40%.

摘要翻译： 一种橡胶容器龙门起重机的节能控制系统，其中柴油机 - 发电机组在起重机空转时被控制停止，并且使用存储装置向起重机的辅助系统供电， 系统包括：监视器单元，充电器，超级电容器，电容器监视模块和逆变器。 当确定起重机处于怠速状态时，由监控单元发送充电信号，由电容器监视模块接收充电信号，由此发送充电开始信号，以控制充电器对超级电容器的充电; 当监控单元检测出超级电容器充满电时，柴油发电机组被控制停止或减速，超级电容器用于向起重机的辅助系统供电，直流电 的超级电容器由逆变器转换成用于供给辅助系统的交流电。 节能控制系统允许RTG关闭柴油机 - 发电机组并间歇地实施运行，整个RTG的节油率可以达到40％以上。

公开(公告)号：US06654198B2

公开(公告)日：2003-11-25

申请号：US09885008

申请日：2001-06-19

申请人： Xiong Liu ,  Kian Keong Ooi ,  ChoonKiat Lim ,  Yangquan Chen ,  Qiang Bi ,  Mingzhong Ding ,  ShuangQuan Min ,  WeiSung Lee

发明人： Xiong Liu ,  Kian Keong Ooi ,  ChoonKiat Lim ,  Yangquan Chen ,  Qiang Bi ,  Mingzhong Ding ,  ShuangQuan Min ,  WeiSung Lee

IPC分类号： G11B5596

CPC分类号： G11B5/59627

摘要： Steps for isolating and correcting total written-in repeatable run-out error written into servo sectors of a disc drive include, determining a total repeatable run-out error value for each servo sector, isolating a repeatable error value component of the total written-in repeatable run-out error value for each servo sector, removing the repeatable error value component from total written-in repeatable run-out error value to provide a non-repeatable error value component of the total written-in repeatable run-out error value for each servo sector, providing both the repeatable and non-repeatable error value components to a processor for generation of compensation signals, and applying the compensation signals into a servo control circuit of control loop of the disc drive using compensation circuits to compensate for each component of the total written-in repeatable run-out error.

公开(公告)号：US07405893B2

公开(公告)日：2008-07-29

申请号：US11231960

申请日：2005-09-21

申请人： Qiang Bi ,  KianKeong Ooi ,  TaiVie Chiang ,  WingKong Chiang ,  Edmun ChianSong Seng ,  Jimmy Pang ,  BengWee Quak ,  UttHeng Kan ,  Xiong Liu ,  Ricardo SoonLian Lim ,  Patrick TaiHeng Wong ,  MingZhong Ding ,  WeiMing Yeow

发明人： Qiang Bi ,  KianKeong Ooi ,  TaiVie Chiang ,  WingKong Chiang ,  Edmun ChianSong Seng ,  Jimmy Pang ,  BengWee Quak ,  UttHeng Kan ,  Xiong Liu ,  Ricardo SoonLian Lim ,  Patrick TaiHeng Wong ,  MingZhong Ding ,  WeiMing Yeow

IPC分类号： G11B5/09 ,  G11B5/596

CPC分类号： G11B5/59655

摘要： A data storage medium and data storage system with improved efficiency of formatting are provided. One illustrative embodiment of the present invention pertains to a data storage medium. The data storage medium includes a first zone having servo information written with a first frequency, a second zone having servo information written with a second frequency, and a guard band disposed between the first zone and the second zone. The use of different frequencies in different zones contributes to optimizing the properties of the data storage medium, and the guard band contributes to optimizing the usage of the different zones.

摘要翻译： 提供了提供格式化效率的数据存储介质和数据存储系统。 本发明的一个说明性实施例涉及数据存储介质。 数据存储介质包括具有以第一频率写入的伺服信息的第一区，具有以第二频率写入的伺服信息的第二区和设置在第一区和第二区之间的保护带。 在不同区域中使用不同的频率有助于优化数据存储介质的属性，并且保护带有助于优化不同区域的使用。

公开(公告)号：US06862155B2

公开(公告)日：2005-03-01

申请号：US10401358

申请日：2003-03-26

申请人： Yong Y. Yang ,  Qiang Bi ,  Xiong Liu ,  ChoonKiat Lim

发明人： Yong Y. Yang ,  Qiang Bi ,  Xiong Liu ,  ChoonKiat Lim

IPC分类号： G11B5/596

CPC分类号： G11B5/59627 ,  G11B19/045

摘要： Position error values are obtained from a transducer head while following a plurality of servo tracks with a servo loop that band-blocks a frequency range that includes F, a nominal rotation frequency. An estimated difference distribution is derived from the position error values, the difference distribution having a first frequency component at a positive frequency ≦2*F. A scalar track squeeze magnitude indicator is derived from the estimated difference distribution so that the indicator to be transmitted depends on the frequency component.

摘要翻译： 位置误差值是从一个换能器头获得的，同时跟随一个伺服回路的多个伺服轨道，该伺服回路对包括F的标称旋转频率的频率范围进行带阻。 从位置误差值导出估计的差分布，差分分布具有正频率<= 2 * F的第一频率分量。 从估计的差分分布导出标量轨迹挤压幅度指示符，使得要发送的指示符取决于频率分量。

公开(公告)号：US06317285B1

公开(公告)日：2001-11-13

申请号：US09697002

申请日：2000-10-26

申请人： Qiang Bi ,  Kevin Arthur Gomez ,  Jimmy Tze Ming Pang ,  Stephen Kow Chiew Kuan ,  MengEng Lye ,  BengSee Lim

发明人： Qiang Bi ,  Kevin Arthur Gomez ,  Jimmy Tze Ming Pang ,  Stephen Kow Chiew Kuan ,  MengEng Lye ,  BengSee Lim

IPC分类号： G11B5455

CPC分类号： G11B5/59683 ,  G11B5/012 ,  G11B5/5534 ,  G11B5/59644 ,  G11B7/0945

摘要： A method of calibrating magnetoresistive (MR) head geometry for a product head in a selfservo writing disc drive includes the steps of writing a first burst at an inner diameter of a disc surface using the write head of the product head. Next, the first burst is read using the MR read head of the product head, and a first read amplitude of the first burst is determined. From the first read amplitude of the first burst, it is determined which one of a multiple different sets of subsequent inner diameter steps to perform. Then, the one of the multiple different sets of subsequent inner diameter steps is performed to determine a read head width, a write head width, and a read-write offset between the read head and the write head.

摘要翻译： 在自写入盘驱动器中用于校准磁头（MR）头几何形状的方法包括以下步骤：使用产品头的写入头在盘表面的内径处写入第一脉冲串。 接下来，使用产品头的MR读取头读取第一个突发，并确定第一个突发的第一个读取幅度。 从第一脉冲串的第一读取幅度开始，确定执行多个不同组的后续内径步骤中的哪一个。 然后，执行多个不同组的后续内径步骤中的一个，以确定读头和写头之间的读头宽度，写头宽度和读 - 写偏移。

公开(公告)号：US20120044593A1

公开(公告)日：2012-02-23

申请号：US12860585

申请日：2010-08-20

申请人： Yong Xiao ,  Qiang Bi ,  Weisung Lee ,  Mingzhong Ding ,  Kiankeong Ooi

发明人： Yong Xiao ,  Qiang Bi ,  Weisung Lee ,  Mingzhong Ding ,  Kiankeong Ooi

IPC分类号： G11B27/36

CPC分类号： G11B20/20 ,  G11B5/56 ,  G11B5/59627 ,  G11B19/046 ,  G11B2220/2516

摘要： One way to minimize full DC head-skew re-calibrations rendered necessary by changes in storage media drive operating temperature is to compensate for temperature-induced DC head-skew using a known relationship between temperature-induced DC head-skew and storage media operating temperature. More specifically, a first DC head-skew is measured at a first arbitrary temperature of the storage media drive. A second DC head-skew is measured at a second arbitrary temperature of the storage media drive. A DC head-skew correction factor is calculated using the first and second DC head-skews at the first and second arbitrary temperatures. When a multi-head storage media drive is powered-up for operation, a temperature sensor located in the storage media drive assembly measures the current storage media drive temperature. The head-skew correction factor is applied based on the measured temperature to correct the DC head-skew.

摘要翻译： 通过存储介质驱动器工作温度的变化使必要的全直流磁头偏移重新校准最小化的一种方法是使用温度引起的直流磁头偏移和存储介质工作温度之间的已知关系来补偿温度引起的直流磁头偏移 。 更具体地，在存储介质驱动器的第一任意温度下测量第一DC头偏移。 在存储介质驱动器的第二任意温度下测量第二DC头偏移。 使用第一和第二任意温度下的第一和第二DC头偏差来计算直流偏移校正系数。 当多头存储介质驱动器上电运行时，位于存储介质驱动器组件中的温度传感器测量当前的存储介质驱动器温度。 基于测量的温度应用头偏斜校正因子以校正DC头偏移。

公开(公告)号：US07349174B2

公开(公告)日：2008-03-25

申请号：US10143137

申请日：2002-05-09

申请人： Qiang Bi ,  Xiong Liu ,  LeeLing Tan ,  Wen-Jun Cao ,  ChoonKiat Lim

发明人： Qiang Bi ,  Xiong Liu ,  LeeLing Tan ,  Wen-Jun Cao ,  ChoonKiat Lim

IPC分类号： G11B5/596

CPC分类号： G11B27/36 ,  G11B19/04 ,  G11B2220/20

摘要： A method of preventing a write operation to a disc in a disc drive during a shock event without the use of a separate shock sensor comprises steps of monitoring an actuator voice coil motor (VCM) control plant output signal, generating an actuator voice coil motor (VCM) plant model module output signal, comparing the VCM plant model module output signal to the VCM control plant module output signal to produce a difference signal, and triggering a write protect gate if the difference signal exceeds a predetermined threshold value. The system comprises a voice coil motor (VCM) control plant module sensitive to a shock event providing a VCM control plant module output, a voice coil motor (VCM) plant model module initially insensitive to the shock event producing a VCM plant model module output, a first comparator module coupled to receive the VCM control plant module output and the VCM plant model module output, operable to generate a difference signal between the model plant module output and the VCM control plant module output, and a triggering module receiving the difference signal for generating a write protect gate signal if the difference signal exceeds a predetermined shock threshold.

摘要翻译： 一种在不使用单独的冲击传感器的情况下防止在磁盘驱动器中对盘的写入操作的方法包括以下步骤：监视致动器音圈电机（VCM）控制电路输出信号，产生致动器音圈电机 VCM）工厂模块模块输出信号，将VCM工厂模块模块输出信号与VCM控制站模块输出信号进行比较，产生差分信号，如果差分信号超过预定阈值则触发写保护门。 该系统包括对提供VCM控制工厂模块输出的冲击事件敏感的音圈电机（VCM）控制工厂模块，对产生VCM工厂模块模块输出的冲击事件最初不敏感的音圈电机（VCM）工厂模型模块， 第一比较器模块，其耦合以接收VCM控制工厂模块输出和VCM工厂模块模块输出，可操作以在模型工厂模块输出和VCM控制工厂模块输出之间产生差分信号;以及触发模块，其接收差分信号 如果差分信号超过预定的冲击阈值，则产生写保护门信号。

公开(公告)号：US20070064325A1

公开(公告)日：2007-03-22

申请号：US11231960

申请日：2005-09-21

申请人： Qiang Bi ,  KianKeong Ooi ,  TaiVie Chiang ,  WingKong Chiang ,  Edmun Seng ,  Jimmy Pang ,  BengWee Quak ,  UttHeng Kan ,  Xiong Liu

发明人： Qiang Bi ,  KianKeong Ooi ,  TaiVie Chiang ,  WingKong Chiang ,  Edmun Seng ,  Jimmy Pang ,  BengWee Quak ,  UttHeng Kan ,  Xiong Liu

IPC分类号： G11B5/09 ,  G11B5/596

CPC分类号： G11B5/59655

摘要： A data storage medium and data storage system with improved efficiency of formatting are provided. One illustrative embodiment of the present invention pertains to a data storage medium. The data storage medium includes a first zone having servo information written with a first frequency, a second zone having servo information written with a second frequency, and a guard band disposed between the first zone and the second zone. The use of different frequencies in different zones contributes to optimizing the properties of the data storage medium, and the guard band contributes to optimizing the usage of the different zones.

摘要翻译： 提供了提供格式化效率的数据存储介质和数据存储系统。 本发明的一个说明性实施例涉及数据存储介质。 数据存储介质包括具有以第一频率写入的伺服信息的第一区，具有以第二频率写入的伺服信息的第二区和设置在第一区和第二区之间的保护带。 在不同区域中使用不同的频率有助于优化数据存储介质的属性，并且保护带有助于优化不同区域的使用。