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1. 发明授权

US07242546B2 Determining a location based on a cyclic bit sequence containing consecutively-placed identical bit-groups 失效
标题翻译：基于包含连续放置的相同位组的循环位序列来确定位置
公开(公告)号：US07242546B2
公开(公告)日：2007-07-10
申请号：US10685076
申请日：2003-10-13
申请人： KianKeong Ooi , WingKong Chiang , MingZhong Ding , WeiSung Lee , EikFun Khor , BengWee Quak
发明人： KianKeong Ooi , WingKong Chiang , MingZhong Ding , WeiSung Lee , EikFun Khor , BengWee Quak
IPC分类号： G11B5/09
CPC分类号： G11B27/3027 , G11B20/1403 , G11B27/105 , G11B2220/20
摘要： A location within a cycle is determined by reading a portion of a cyclic bit sequence, the bit sequence containing several interspersed bit-group sets that each contain a plurality of series that each consist of several consecutively-placed identical bit-groups. On a data surface in a disc drive, each bit group can be stored and accessed in unused bits of each servo sector's digital portion.
摘要翻译：通过读取循环比特序列的一部分来确定周期内的位置，该比特序列包含几个散布的比特组集合，每个包含多个序列，每个包含多个由几个连续放置的相同比特组组成的序列。在磁盘驱动器的数据表面上，可以在每个伺服扇区的数字部分的未使用位中存储和访问每个位组。

2. 发明申请

US20050078396A1 Determining a location based on a cyclic bit sequence containing consecutively-placed identical bit-groups 失效
标题翻译：基于包含连续放置的相同位组的循环位序列来确定位置
公开(公告)号：US20050078396A1
公开(公告)日：2005-04-14
申请号：US10685076
申请日：2003-10-13
申请人： KianKeong Ooi , WingKong Chiang , MingZhong Ding , WeiSung Lee , EikFun Khor , BengWee Quak
发明人： KianKeong Ooi , WingKong Chiang , MingZhong Ding , WeiSung Lee , EikFun Khor , BengWee Quak
IPC分类号： G11B20/14 , G11B27/10 , G11B27/30 , G11B5/09 , G11B5/596
CPC分类号： G11B27/3027 , G11B20/1403 , G11B27/105 , G11B2220/20
摘要： A location within a cycle is determined by reading a portion of a cyclic bit sequence, the bit sequence containing several interspersed bit-group sets that each contain a plurality of series that each consist of several consecutively-placed identical bit-groups. On a data surface in a disc drive, each bit group can be stored and accessed in unused bits of each servo sector's digital portion.
摘要翻译：通过读取循环比特序列的一部分来确定周期内的位置，该比特序列包含几个散布的比特组集合，每个包含多个序列，每个包含多个由几个连续放置的相同比特组组成的系列。在磁盘驱动器的数据表面上，可以在每个伺服扇区的数字部分的未使用位中存储和访问每个位组。

3. 发明授权

US07405893B2 Data storage medium with optimized servo format 有权
标题翻译：具有优化伺服格式的数据存储介质
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。

4. 发明申请

US20080304172A1 DATA STORAGE MEDIUM HAVING SYSTEM DATA STORED IN A GUARD BAND BETWEEN ZONES OF CONSECUTIVE DATA STORAGE TRACKS 有权
标题翻译：数据存储介质存储在相关数据存储区域之间的保护区中的系统数据
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。

5. 发明授权

US06690534B2 Method and apparatus for handling multiple resonance frequencies in disc drives using active damping 有权
标题翻译：用于使用主动阻尼处理磁盘驱动器中的多个共振频率的方法和装置
公开(公告)号：US06690534B2
公开(公告)日：2004-02-10
申请号：US09827339
申请日：2001-04-05
申请人： MingZhong Ding , YangQuan Chen , LeeLing Tan , Wing Kong Chiang , KianKeong Ooi , BengWee Quak
发明人： MingZhong Ding , YangQuan Chen , LeeLing Tan , Wing Kong Chiang , KianKeong Ooi , BengWee Quak
IPC分类号： G11B5596
CPC分类号： G11B5/5582
摘要： A method of handling multiple resonance frequencies in a disc drive includes monitoring a position error signal (PES) for an actuator arm, generating a plurality of feedforward compensation signals from the PES using a plurality of bandpass filters, and applying the compensation signals to a servo control signal. Each filter has a center frequency that is set to a problematic resonance frequency. The method may also include identifying the problematic frequencies by, for example, commanding a movement of the actuator arm, collecting data points for the PES that are associated with the movement, and performing a digital fourier transform of the data points to identify resonant frequencies. Other methods of identifying problematic frequencies include analyzing PES zero-crossing data, or using principal component analysis.
摘要翻译：一种在盘驱动器中处理多个共振频率的方法包括监视致动器臂的位置误差信号（PES），使用多个带通滤波器从PES产生多个前馈补偿信号，并将补偿信号施加到伺服控制信号。每个滤波器的中心频率被设置为有问题的共振频率。该方法还可以包括通过例如指令致动器臂的移动来收集有问题的频率，收集与移动相关联的PES的数据点，以及执行数据点的数字傅里叶变换以识别共振频率。识别有问题频率的其他方法包括分析PES过零数据，或使用主成分分析。

6. 发明授权

US07170249B2 Electrical phase compensation in BEMF spindle motor control 有权
标题翻译： BEMF主轴电机控制中的电相补偿
公开(公告)号：US07170249B2
公开(公告)日：2007-01-30
申请号：US11312052
申请日：2005-12-20
申请人： June Christian Ang , KianKeong Ooi , WingKong Chiang , MingZhong Ding
发明人： June Christian Ang , KianKeong Ooi , WingKong Chiang , MingZhong Ding
IPC分类号： G05B11/01 , G11B7/00
CPC分类号： G11B19/28 , H02P6/182
摘要： A method and apparatus for compensating for the asymmetrical phases of a spindle motor in a disc drive are provided. With the apparatus and method, compensation values are learned by sampling speed data during a period of operation of the disc drive where the speed is stable and only one control operation is performed per revolution of the disc. The sampled speed data is used to generate the compensation values for each of the phases of the spindle motor. The compensation values are stored in a compensation mechanism which is used by the spindle motor speed controller to provide compensation for the asymmetrical phases of the spindle motor. During Normal operation, the actual speed output of the spindle motor is measured and is subtracted from a reference speed to generate a difference speed value. Based on the corresponding electrical phase, the correct compensation value is fetched and is subtracted from the difference speed value to obtain a compensated difference speed value. A control signal based on this compensated difference speed value is generated and provided to the spindle motor to thereby control the output speed of the spindle motor.
摘要翻译：提供了用于补偿磁盘驱动器中的主轴电动机的非对称相位的方法和装置。利用该装置和方法，在速度稳定的盘驱动器的操作周期期间通过采样速度数据来学习补偿值，并且每一周只执行一次控制操作。采样速度数据用于产生主轴电机各相的补偿值。补偿值存储在主轴电机转速控制器使用的补偿机构中，为主轴电机的非对称相提供补偿。在正常运行期间，主轴电机的实际速度输出被测量，并从参考速度中减去以产生差速值。基于对应的电相，取出正确的补偿值，并从差速值中减去以获得补偿差速值。产生基于该补偿差速值的控制信号，并提供给主轴电动机，从而控制主轴电动机的输出速度。

7. 发明授权

US07133227B2 Head polarity detection algorithm and apparatus 失效
标题翻译：磁头极性检测算法和装置
公开(公告)号：US07133227B2
公开(公告)日：2006-11-07
申请号：US10761475
申请日：2004-01-21
申请人： TaiVie Chiang , WingKong Chiang , KianKeong Ooi , KianSoon Yeo , MingZhong Ding
发明人： TaiVie Chiang , WingKong Chiang , KianKeong Ooi , KianSoon Yeo , MingZhong Ding
IPC分类号： G11B27/36
CPC分类号： G11B27/36 , G11B5/455 , G11B20/10009 , G11B2005/001 , G11B2005/0013 , G11B2220/20
摘要： A method of determining and monitoring head polarity of data heads comprises performing a head polarity detection routine. The head polarity detection routine comprises the step of setting a read gate period duration to a first value. The routine also comprises searching for a good address mark signal during a first read gate period with a channel polarity set to a first polarity. The routine further comprises identifying a polarity of a data head based upon the channel polarity when the good address mark is detected.
摘要翻译：确定和监视数据头的磁头极性的方法包括执行磁头极性检测程序。磁头极性检测程序包括将读门限周期设定为第一值的步骤。该例程还包括在第一读取门限周期期间搜索良好的地址标志信号，其中通道极性被设置为第一极性。该例程还包括当检测到良好地址标记时，基于信道极性识别数据头的极性。

8. 发明申请

US20060097681A1 Electrical phase compensation in BEMF spindle motor control 有权
标题翻译： BEMF主轴电机控制中的电相补偿
公开(公告)号：US20060097681A1
公开(公告)日：2006-05-11
申请号：US11312052
申请日：2005-12-20
申请人： June Ang , KianKeong Ooi , WingKong Chiang , MingZhong Ding
发明人： June Ang , KianKeong Ooi , WingKong Chiang , MingZhong Ding
IPC分类号： G05B11/01
CPC分类号： G11B19/28 , H02P6/182
摘要： A method and apparatus for compensating for the asymmetrical phases of a spindle motor in a disc drive are provided. With the apparatus and method, compensation values are learned by sampling speed data during a period of operation of the disc drive where the speed is stable and only one control operation is performed per revolution of the disc. The sampled speed data is used to generate the compensation values for each of the phases of the spindle motor. The compensation values are stored in a compensation mechanism which is used by the spindle motor speed controller to provide compensation for the asymmetrical phases of the spindle motor. During Normal operation, the actual speed output of the spindle motor is measured and is subtracted from a reference speed to generate a difference speed value. Based on the corresponding electrical phase, the correct compensation value is fetched and is subtracted from the difference speed value to obtain a compensated difference speed value. A control signal based on this compensated difference speed value is generated and provided to the spindle motor to thereby control the output speed of the spindle motor.
摘要翻译：提供了用于补偿磁盘驱动器中的主轴电动机的非对称相位的方法和装置。利用该装置和方法，在速度稳定的盘驱动器的操作周期期间通过采样速度数据来学习补偿值，并且每一周只执行一次控制操作。采样速度数据用于产生主轴电机各相的补偿值。补偿值存储在主轴电机转速控制器使用的补偿机构中，为主轴电机的非对称相提供补偿。在正常运行期间，主轴电机的实际速度输出被测量，并从参考速度中减去以产生差速值。基于对应的电相，取出正确的补偿值，并从差速值中减去以获得补偿差速值。产生基于该补偿差速值的控制信号，并提供给主轴电动机，从而控制主轴电动机的输出速度。

9. 发明申请

US20050157415A1 Head polarity detection algorithm and apparatus 失效
标题翻译：磁头极性检测算法和装置
公开(公告)号：US20050157415A1
公开(公告)日：2005-07-21
申请号：US10761475
申请日：2004-01-21
申请人： TaiVie Chiang , WingKong Chiang , KianKeong Ooi , KianSoon Yeo , MingZhong Ding
发明人： TaiVie Chiang , WingKong Chiang , KianKeong Ooi , KianSoon Yeo , MingZhong Ding
IPC分类号： G11B5/00 , G11B5/02 , G11B5/455 , G11B20/10 , G11B21/02 , G11B27/36
CPC分类号： G11B27/36 , G11B5/455 , G11B20/10009 , G11B2005/001 , G11B2005/0013 , G11B2220/20
摘要： A method of determining and monitoring head polarity of data heads comprises performing a head polarity detection routine. The head polarity detection routine comprises the step of setting a read gate period duration to a first value. The routine also comprises searching for a good address mark signal during a first read gate period with a channel polarity set to a first polarity. The routine further comprises identifying a polarity of a data head based upon the channel polarity when the good address mark is detected.
摘要翻译：确定和监视数据头的磁头极性的方法包括执行磁头极性检测程序。磁头极性检测程序包括将读门限周期设定为第一值的步骤。该例程还包括在第一读取门限周期期间搜索良好的地址标志信号，其中通道极性被设置为第一极性。该例程还包括当检测到良好地址标记时，基于信道极性识别数据头的极性。

10. 发明申请

US20070064334A1 Random vibration and shock compensator using a disturbance observer 有权
标题翻译：使用扰动观测器的随机振动和冲击补偿器
公开(公告)号：US20070064334A1
公开(公告)日：2007-03-22
申请号：US11230168
申请日：2005-09-19
申请人： QingWei Jia , MingZhong Ding , KianKeong Ooi , Jianyi Wang
发明人： QingWei Jia , MingZhong Ding , KianKeong Ooi , Jianyi Wang
IPC分类号： G11B5/596
CPC分类号： G11B5/59605 , G11B5/5582
摘要： A data storage device adapted to compensate for physical disturbances has a storage medium, a read-write mechanism positionable relative to the storage medium, and a disturbance observer. The read-write mechanism is adapted to read and write data. The disturbance observer compensates a position of the read-write mechanism according to low-frequency components of physical disturbances.
摘要翻译：适于补偿物理干扰的数据存储装置具有存储介质，相对于存储介质定位的读写机构和干扰观察器。读写机制适用于读写数据。干扰观测器根据物理扰动的低频分量补偿读写机构的位置。

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