公开(公告)号：US06765737B1

公开(公告)日：2004-07-20

申请号：US09519910

申请日：2000-03-07

申请人： Choonkiat Lim ,  Xiong Liu ,  Joseph Cheng-Tsu Liu ,  Kevin A. Gomez

发明人： Choonkiat Lim ,  Xiong Liu ,  Joseph Cheng-Tsu Liu ,  Kevin A. Gomez

IPC分类号： G11B509

CPC分类号： G11B5/012 ,  G11B5/59627

摘要： A disc drive includes a base and a disc rotatably attached to the base. The disc has an inner diameter and an outer diameter and a plurality of tracks. Information is written on the plurality of tracks. The plurality of tracks are written at a variable track pitch. The tracks positioned near the outer diameter are wider in pitch than the tracks positioned near the inner diameter. The plurality of tracks further include a first group of tracks written at a first track pitch, and a second group of tracks written at a second track pitch. The track pitch of each of the first group and the second group of tracks is selected such that the percentage of track misregistration for each group will be substantially the same. This method provides a means to increase storage capacity for a predetermined track misregistration budget.

摘要翻译： 盘驱动器包括基座和可旋转地附接到基座的盘。 盘具有内径和外径以及多个轨道。 信息写在多个轨道上。 以可变轨道间距写入多个轨迹。 位于外径附近的轨道的间距比位于内径附近的轨道宽。 多个轨道还包括以第一轨道间距写入的第一组轨道和以第二轨道间距写入的第二组轨道。 选择第一组和第二组轨道中的每一个的轨道间距，使得每个组的轨道重合失调的百分比将基本相同。 该方法提供了一种增加预定轨道重合不足预算的存储容量的方法。

公开(公告)号：US06754030B2

公开(公告)日：2004-06-22

申请号：US10029318

申请日：2001-12-21

申请人： Edmun Chian Song Seng ,  Xiong Liu ,  Aik Chuan Lim ,  Kay Hee Tang ,  Utt Heng Kan ,  Choon Kiat Lim

发明人： Edmun Chian Song Seng ,  Xiong Liu ,  Aik Chuan Lim ,  Kay Hee Tang ,  Utt Heng Kan ,  Choon Kiat Lim

IPC分类号： G11B500

CPC分类号： G11B20/20 ,  G11B5/59627 ,  G11B27/36 ,  G11B2220/20

摘要： A method of and apparatus for generating a reader-to-writer offset for a head positioned over a track on a disc in a disc drive having a plurality of tracks is disclosed. A reader and a writer are mounted on the head in a non-overlapping manner with a gap between the reader and the writer, which is known as the reader-to-writer offset. A disc drive controller is operably connected to the reader and the writer. The disc drive controller determines the reader-to-writer offset of the head for each track by computing the difference between a first head position x1 and a second head position x2. The first head position x1 is an optimal head position for writing information on the track and the second head position x2 is a midpoint of an off-track capability (OTC) of the head. The OTC is a portion of a track pitch over which the reader is expected to read information that is free of an incorrigible bit error such that the writer-to-reader track misregistration (TMR) is minimized as the head is radially displaced the reader-to-writer offset to read information written on the track or to write information on the track.

摘要翻译： 公开了一种用于为位于具有多个磁道的磁盘驱动器中的磁盘上的轨道上的磁头产生读取器到写入器偏移的方法和装置。 阅读器和写入器以不重叠的方式安装在头上，读取器和写入器之间的间隙被称为读写器偏移。 磁盘驱动器控制器可操作地连接到读取器和写入器。 磁盘驱动器控制器通过计算第一磁头位置x1和第二磁头位置x2之间的差来确定每个轨道的磁头的读写器偏移。 第一头位置x1是用于在轨道上写入信息的最佳头部位置，而第二头部位置x2是头部的偏离轨迹能力（OTC）的中点。 OTC是轨道间距的一部分，阅读器期望阅读器读取没有不可避免的位错误的信息，使得写入器到读取器轨迹重合失调（TMR）最小化，因为磁头使读取器 - 写入器偏移以读取写在轨道上的信息或在轨道上写入信息。

公开(公告)号：US06590739B2

公开(公告)日：2003-07-08

申请号：US09860218

申请日：2001-05-19

申请人： Quock Ying Ng ,  Xiong Liu ,  Choonkiat Lim

发明人： Quock Ying Ng ,  Xiong Liu ,  Choonkiat Lim

IPC分类号： G11B1920

CPC分类号： G11B17/0287 ,  G11B25/043

摘要： A disc clamp made from a shape memory alloy is configured for tight fit between an upper ledge of a spindle hub and the upper surface of a disc when the disc clamp is in an austenitic phase. In a martensitic phase, the disc clamp is configured for easy assembly over the spindle hub. The disc of the present invention provides for uniform distribution of clamping forces on the disc, and avoids the need for threaded holes in the spindle hub.

摘要翻译： 由形状记忆合金制成的圆盘夹具构造成当盘式夹具处于奥氏体相时，在主轴毂的上凸缘和盘的上表面之间紧密配合。 在马氏体相中，盘夹被配置为容易地组装在主轴毂上。 本发明的盘提供了在盘上的均匀分布的夹紧力，并且避免了在主轴毂中需要螺纹孔。

公开(公告)号：US06476995B1

公开(公告)日：2002-11-05

申请号：US09483525

申请日：2000-01-14

申请人： Xiong Liu ,  Joseph Cheng-Tsu Liu ,  Kevin A. Gomez ,  Choonkiat Lim

发明人： Xiong Liu ,  Joseph Cheng-Tsu Liu ,  Kevin A. Gomez ,  Choonkiat Lim

IPC分类号： G11B2102

CPC分类号： G11B5/5521 ,  G11B5/4813 ,  G11B5/5582 ,  G11B5/59627 ,  G11B5/59633 ,  G11B5/59638

摘要： An HDA includes a base, a disc stack coupled to a spindle rotatably attached to the base by a spindle shaft and spindle bearing. An actuator assembly is pivotally attached to the base at a pivot shaft. Attached to one end of the actuator assembly proximal the disc stack is one or more transducers for reading/writing information from/to the discs. A servo writer includes a controller for moving the actuator during the servo writing process. The controller moves the servo writer at the cage frequency of the spindle bearing to lessen the relative motion between the transducer head and the disc as the servo information is written to the disc. The controller also may be programmed to move the transducer at both the spindle rotation frequency and the cage frequency of the spindle bearing to lessen the relative motion between the transducer and the disc during the servo writing process.

摘要翻译： HDA包括底座，联接到通过主轴和主轴轴承可旋转地附接到基座的心轴的盘组。 致动器组件在枢轴处枢转地附接到基座。 靠近盘片组件的致动器组件的一端附接有用于从/向盘读/写信息的一个或多个换能器。 伺服写入器包括用于在伺服写入过程中使致动器移动的控制器。 当伺服信息写入光盘时，控制器将伺服写卡机以主轴轴承的笼式频率移动，以减小换能器头与盘之间的相对运动。 控制器还可以被编程为在主轴转动频率和主轴轴承的保持架频率下移动换能器，以在伺服写入过程期间减小换能器和盘之间的相对运动。

公开(公告)号：US08702073B2

公开(公告)日：2014-04-22

申请号：US11749850

申请日：2007-05-17

申请人： JuiJing Lim ,  Chenyang Ding ,  Xiong Liu ,  MingZhong Ding ,  KianKeong Ooi ,  ChoonKiat Lim

发明人： JuiJing Lim ,  Chenyang Ding ,  Xiong Liu ,  MingZhong Ding ,  KianKeong Ooi ,  ChoonKiat Lim

IPC分类号： F16M1/00 ,  F16M13/00

CPC分类号： G11B33/08

摘要： A shock absorber is provided that also includes vibration damping. The shock absorber includes at least one shock absorbing frame member that partially surrounds an electronic device enclosure. The shock absorber also includes at least two protrusions that protrude from the at least one shock absorbing frame member. Each protrusion extends beyond the at least one shock absorbing frame member from a recessed surface recessed into the at least one shock absorbing frame member.

摘要翻译： 还提供一种减震器，还包括减震。 减震器包括部分地围绕电子设备外壳的至少一个减震框架构件。 减震器还包括从至少一个减震框架构件突出的至少两个突起。 每个突起从凹入到所述至少一个减震框架构件的凹入表面延伸超过所述至少一个减震框架构件。

公开(公告)号：US20120127006A1

公开(公告)日：2012-05-24

申请号：US13323527

申请日：2011-12-12

申请人： Kenneth Thet Zin Oo ,  Pierte Roo ,  Xiong Liu

发明人： Kenneth Thet Zin Oo ,  Pierte Roo ,  Xiong Liu

IPC分类号： H03M1/12 ,  H03M1/00

CPC分类号： H03M1/14 ,  H03M1/06 ,  H03M1/1014 ,  H03M1/124 ,  H03M1/167 ,  H03M1/36

摘要： First and second track and hold stages track and store an input voltage for a sample of an analog input signal. A coarse reference ladder provides a plurality of coarse references. The coarse reference ladder includes a first coarse reference and a second coarse reference ladder. A coarse ADC performs a first comparison of the input voltage and the coarse references and outputs a coarse output based on the first comparison. A switch matrix includes switches and is configured to close a switch corresponding to a coarse reference based on the coarse output. A fine reference ladder provides fine references. A fine ADC performs a second comparison of the input voltage and the fine references and outputs a fine output based on the second comparison. Logic outputs a digital output for the sample of the analog input signal based on the coarse output and the fine output.

摘要翻译： 第一和第二跟踪和保持级跟踪并存储模拟输入信号的采样的输入电压。 粗略参考梯形图提供多个粗略参考。 粗略参考梯形图包括第一粗略参考和第二粗略参考梯形图。 粗略的ADC执行输入电压和粗略参考的第一次比较，并输出基于第一次比较的粗略输出。 开关矩阵包括开关，并且被配置为基于粗略输出闭合对应于粗略参考的开关。 一个精细的参考梯子提供了很好的参考。 精细ADC对输入电压和精细基准进行第二次比较，并根据第二次比较输出精细输出。 逻辑输出基于粗略输出和精细输出的模拟输入信号采样的数字输出。

公开(公告)号：US07872827B2

公开(公告)日：2011-01-18

申请号：US11829723

申请日：2007-07-27

申请人： JiaHong Shu ,  TzeMing Jimmy Pang ,  WeiSung Lee ,  KianKeong Ooi ,  KianSoon Yeo ,  Xiong Liu

发明人： JiaHong Shu ,  TzeMing Jimmy Pang ,  WeiSung Lee ,  KianKeong Ooi ,  KianSoon Yeo ,  Xiong Liu

IPC分类号： G11B21/02

CPC分类号： G11B19/043 ,  G11B19/042 ,  G11B21/12 ,  G11B21/22

摘要： Various embodiments of the present invention are generally directed to protecting a device from damage due to an impact event at the conclusion of a free fall condition through the use of a biasing signal that maintains a retention force until the impact event is completed.

摘要翻译： 本发明的各种实施例总体上旨在通过使用维持保持力直到撞击事件完成的偏置信号来保护装置免受在自由落体状态结束时的冲击事件的损害。

公开(公告)号：US20090031815A1

公开(公告)日：2009-02-05

申请号：US11832423

申请日：2007-08-01

申请人： Jui Jing Lim ,  Xiong Liu ,  Ying Su ,  Thia Kong Beng ,  Yi Ren Hong ,  Kok Tong Soh

发明人： Jui Jing Lim ,  Xiong Liu ,  Ying Su ,  Thia Kong Beng ,  Yi Ren Hong ,  Kok Tong Soh

IPC分类号： B06B3/00

CPC分类号： G01M7/027

摘要： A vibration test apparatus is disclosed. The vibration test apparatus includes a platform assembly, which receives a vibration input from a vibration source and imparts a multi-axial vibration to a test specimen on the platform assembly. In illustrated embodiments the platform assembly includes one or more platforms having an adjustable incline angle. The incline angle is adjusted to provide the desired output vibration based upon a measured or determined vibration profile and the input vibration from the vibration source.

摘要翻译： 公开了一种振动试验装置。 振动试验装置包括平台组件，其接收来自振动源的振动输入并向平台组件上的试样施加多轴向振动。 在所示实施例中，平台组件包括具有可调节倾斜角度的一个或多个平台。 根据测量或确定的振动分布和来自振动源的输入振动，调整倾斜角以提供所需的输出振动。

公开(公告)号：US20090027798A1

公开(公告)日：2009-01-29

申请号：US11829723

申请日：2007-07-27

申请人： JiaHong Shu ,  TzeMing Jimmy Pang ,  WeiSung Lee ,  KianKeong Ooi ,  KianSoon Yeo ,  Xiong Liu

发明人： JiaHong Shu ,  TzeMing Jimmy Pang ,  WeiSung Lee ,  KianKeong Ooi ,  KianSoon Yeo ,  Xiong Liu

IPC分类号： G11B21/02

CPC分类号： G11B19/043 ,  G11B19/042 ,  G11B21/12 ,  G11B21/22

摘要： Various embodiments of the present invention are generally directed to protecting a device from damage due to an impact event at the conclusion of a free fall condition through the use of a biasing signal that maintains a retention force until the impact event is completed.

摘要翻译： 本发明的各种实施例总体上旨在通过使用维持保持力直到冲击事件完成的偏置信号来保护装置免受在自由落体状态结束时的冲击事件的损害。

公开(公告)号：US07457075B2

公开(公告)日：2008-11-25

申请号：US10785628

申请日：2004-02-24

申请人： Xiong Liu ,  Qiang Bi ,  TzeMing Jimmy Pang ,  ChoonKiat Lim

发明人： Xiong Liu ,  Qiang Bi ,  TzeMing Jimmy Pang ,  ChoonKiat Lim

IPC分类号： G11B5/596

CPC分类号： G11B5/59605 ,  G11B19/045

摘要： A method and apparatus for compensating for errors in servo systems. An improved zero acceleration path (ZAP) correction technique is provided, wherein selected tracks of a data storage device are used for ZAP processing in order to reduce the overall time required to perform error compensation for a storage device. For a given selected track to be ZAPed, track profiles of adjoining tracks are used in addition to the track profile of the selected track as part of the ZAP correction determination for the selected track. Using adjacent track profiles as part of the ZAP correction determination assists in mitigating AC track squeeze issues that would otherwise occur when performing selective track ZAPing.

摘要翻译： 一种补偿伺服系统误差的方法和装置。 提供了一种改进的零加速路径（ZAP）校正技术，其中数据存储设备的选定轨道用于ZAP处理，以便减少对存储设备进行错误补偿所需的总体时间。 对于给定的所选轨道要ZAPed，除了所选轨道的轨道轮廓之外，还使用相邻轨道的轨道轮廓，作为所选轨道的ZAP校正确定的一部分。 使用相邻轨道配置文件作为ZAP校正确定的一部分有助于减轻执行选择性跟踪ZAPing时会发生的AC轨道挤压问题。