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    Implementation of variable bit density in storage disc drives
    1.
    发明授权
    Implementation of variable bit density in storage disc drives 有权
    在存储盘驱动器中实现可变位密度

    公开(公告)号：US06445653B1

    公开(公告)日：2002-09-03

    申请号：US09714025

    申请日：2000-11-15

    申请人： Wei Loon Ng ,  Teck Khoon Lim ,  Beng Wee Quak ,  Wing Hung Chan ,  Myint Ngwe

    发明人： Wei Loon Ng ,  Teck Khoon Lim ,  Beng Wee Quak ,  Wing Hung Chan ,  Myint Ngwe

    IPC分类号： G11B700

    CPC分类号： G11B27/105 ,  G11B5/012 ,  G11B20/10 ,  G11B2005/001 ,  G11B2220/20 ,  G11B2220/2516

    摘要： The present invention pertains to an apparatus and method for recording data in a data storage medium. The data storage medium includes a number of discs, each having at least one recording surface. Each recording surface is associated with a read/write head that records and accesses data from the surface. Each recording surface is partitioned into a number of zones. Each zone is vertically aligned with a same zone on each surface of each disc. The zone boundaries on all surfaces of the disc drive are the same. The recording frequency for each zone on all surfaces can differ for each read/write head in order to compensate for a read/write head that cannot meet the BPI error rate threshold.

    摘要翻译： 本发明涉及用于在数据存储介质中记录数据的装置和方法。 数据存储介质包括多个盘，每个盘具有至少一个记录表面。 每个记录表面与记录和访问来自表面的数据的读/写头相关联。 每个记录表面被划分成多个区域。 每个区域与每个盘的每个表面上的相同区域垂直对准。 磁盘驱动器的所有表面上的区域边界是相同的。 所有表面上的每个区域的记录频率对于每个读/写头可能不同，以补偿不能满足BPI错误率阈值的读/写头。

    Implementation of variable bit density recording in storage disc drives
    2.
    发明授权
    Implementation of variable bit density recording in storage disc drives 失效
    在存储盘驱动器中实现可变位密度记录

    公开(公告)号：US06182250B2

    公开(公告)日：2001-01-30

    申请号：US09167808

    申请日：1998-10-07

    申请人： Wei Loon Ng ,  Teck Khoon Lim ,  Beng Wee Quak ,  Wing Hung Chan ,  Myint Ngwe

    发明人： Wei Loon Ng ,  Teck Khoon Lim ,  Beng Wee Quak ,  Wing Hung Chan ,  Myint Ngwe

    IPC分类号： G06F1100

    CPC分类号： G11B27/105 ,  G11B5/012 ,  G11B20/10 ,  G11B2005/001 ,  G11B2220/20 ,  G11B2220/2516

    摘要： The present invention pertains to an apparatus and method for recording data in a data storage medium. The data storage medium includes a number of discs, each having at least one recording surface. Each recording surface is associated with a read/write head that records and accesses data from the surface. Each recording surface is partitioned into a number of zones. Each zone is vertically aligned with a same zone on each surface of each disc. The zone boundaries on all surfaces of the disc drive are the same. The recording frequency for each zone on all surfaces can differ for each read/write head in order to compensate for a read/write head that cannot meet the BPI error rate threshold.

    摘要翻译： 本发明涉及用于在数据存储介质中记录数据的装置和方法。 数据存储介质包括多个盘，每个盘具有至少一个记录表面。 每个记录表面与记录和访问来自表面的数据的读/写头相关联。 每个记录表面被划分成多个区域。 每个区域与每个盘的每个表面上的相同区域垂直对准。 磁盘驱动器的所有表面上的区域边界是相同的。 所有表面上的每个区域的记录频率对于每个读/写头可能不同，以补偿不能满足BPI错误率阈值的读/写头。

    Implementation of variable bit density recording in storage disc drives
    3.
    发明授权
    Implementation of variable bit density recording in storage disc drives 有权
    在存储盘驱动器中实现可变位密度记录

    公开(公告)号：US06560052B2

    公开(公告)日：2003-05-06

    申请号：US09351737

    申请日：1999-07-12

    申请人： Wei Loon Ng ,  Beng Wee Quak ,  Wing Hung Chan ,  Swee Kieong Choo ,  Choon Wei Ng ,  Teck Khoon Lim

    发明人： Wei Loon Ng ,  Beng Wee Quak ,  Wing Hung Chan ,  Swee Kieong Choo ,  Choon Wei Ng ,  Teck Khoon Lim

    IPC分类号： G11B509

    CPC分类号： G11B20/1258 ,  G11B5/012 ,  G11B5/09 ,  G11B20/1816 ,  G11B27/105 ,  G11B2005/001 ,  G11B2220/20 ,  G11B2220/2516

    摘要： The present invention pertains to an apparatus and method for recording data in a variable bit density disc drive. The disc drive includes a recording surfaces, each having a corresponding head for recording data on the recording surface. At least one head is operated at a different recording frequency from the other heads, creating a variable bit density for the different recording surfaces. The combination of head recording frequencies is determined following an error testing operation and a unique physdisc lookup table is created based on the determined recording frequencies. The physdisc lookup table is used to allocate data sectors and to convert between logical and physical block addresses.

    摘要翻译： 本发明涉及一种用于在可变位密度盘驱动器中记录数据的装置和方法。 盘驱动器包括记录表面，每个记录表面具有用于在记录表面上记录数据的相应头部。 至少一个头部以与其他头部不同的记录频率操作，为不同的记录表面创建可变位密度。 头部记录频率的组合在​​误差测试操作之后确定，并且基于所确定的记录频率创建唯一的物理查找表。 physdisc查找表用于分配数据扇区，并在逻辑块和物理块地址之间进行转换。

    Disc drive with fake defect entries
    4.
    发明授权
    Disc drive with fake defect entries 失效
    带有假缺陷条目的光盘驱动器

    公开(公告)号：US06747825B1

    公开(公告)日：2004-06-08

    申请号：US09578235

    申请日：2000-05-24

    申请人： Wei Loon Ng ,  Beng Wee Quak ,  YongPeng Chng ,  Wesley Wing Hung Chan ,  Patrick Tai Heng Wong

    发明人： Wei Loon Ng ,  Beng Wee Quak ,  YongPeng Chng ,  Wesley Wing Hung Chan ,  Patrick Tai Heng Wong

    IPC分类号： G11B509

    CPC分类号： G11B20/1883 ,  G11B5/09 ,  G11B5/59616 ,  G11B2220/20

    摘要： A disc drive includes a base and a disc rotatably attached to the base. The disc drive is formatted by obtaining a list of defective sector entries, determining a first location of selected information based on skipping the defective sectors within the list of defective sector entries, and calculating a second location for selected information. At least one sector to skip is added before the second location of selected information to move the selected information from the first position to the second position. The added sectors may be designated as defective sectors. By adding the at least one sector to skip, the second position of the information is moved or slipped.

    摘要翻译： 盘驱动器包括基座和可旋转地附接到基座的盘。 通过获得缺陷扇区条目的列表来格式化盘驱动器，基于跳过缺陷扇区条目列表内的缺陷扇区，以及计算选定信息的第二位置，确定选定信息的第一位置。 在所选择的信息的第二位置之前添加至少一个要跳过的扇区，以将选择的信息从第一位置移动到第二位置。 添加的扇区可以被指定为缺陷扇区。 通过添加要跳过的至少一个扇区，信息的第二位置被移动或滑动。

    DATA CONFLICT RESOLUTION FOR SOLID-STATE MEMORY DEVICES
    5.
    发明申请
    DATA CONFLICT RESOLUTION FOR SOLID-STATE MEMORY DEVICES 有权
    数据冲突解决方案用于固态存储器件

    公开(公告)号：US20090313453A1

    公开(公告)日：2009-12-17

    申请号：US12140488

    申请日：2008-06-17

    申请人： Stefanus Stefanus ,  Feng Shen ,  Wei Loon Ng

    发明人： Stefanus Stefanus ,  Feng Shen ,  Wei Loon Ng

    IPC分类号： G06F12/10 ,  G06F11/14 ,  G06F12/00

    CPC分类号： G06F12/0246 ,  G06F11/1441 ,  G06F2212/7206 ,  G06F2212/7207 ,  G06F2212/7209

    摘要： In a particular embodiment, a controller is disclosed that is adapted to control read/write access to a storage media. The controller includes data corruption detection logic to reconstruct a logical block address (LBA) lookup table from metadata stored at the storage media upon restart and re-initialization after a power loss event. The controller further includes duplicate conflict resolution logic to identify a valid data block from multiple data blocks that refer to a single LBA. The duplicate conflict resolution logic counts a first number of valid physical pages and a second number of different sectors in each of the multiple data blocks. The duplicate conflict resolution logic selects the valid data block from the multiple data blocks based on at least one of the first and second numbers.

    摘要翻译： 在特定实施例中，公开了适于控制对存储介质的读/写访问的控制器。 控制器包括数据损坏检测逻辑，用于在重新启动之后存储在存储介质上的元数据重新构建逻辑块地址（LBA）查找表，并在掉电事件之后重新初始化。 控制器还包括重复的冲突解决逻辑以从引用单个LBA的多个数据块中识别有效的数据块。 重复的冲突解决逻辑在多个数据块的每一个中计数第一数量的有效物理页和第二数量的不同扇区。 重复冲突解决逻辑基于第一和第二数字中的至少一个从多个数据块中选择有效的数据块。

    System and method of managing metadata
    6.
    发明授权
    System and method of managing metadata 有权
    管理元数据的系统和方法

    公开(公告)号：US08762661B2

    公开(公告)日：2014-06-24

    申请号：US12233098

    申请日：2008-09-18

    申请人： Wei Loon Ng ,  Feng Shen ,  Stefanus Stefanus

    发明人： Wei Loon Ng ,  Feng Shen ,  Stefanus Stefanus

    IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F13/28

    CPC分类号： G06F3/0631 ,  G06F3/0617 ,  G06F3/0641 ,  G06F3/0656 ,  G06F3/0679

    摘要： In a particular embodiment, a controller is adapted to control read/write access to a storage media including a pre-allocated area having multiple meta-blocks. The controller includes logic adapted to control the multiple meta-blocks as a first in first out (FIFO) circular queue. The logic selects one or more meta-blocks from the multiple meta-blocks based on an order associated with the FIFO circular queue and selectively writes a logical block address (LBA) mapping table to the selected one or more meta-blocks.

    摘要翻译： 在特定实施例中，控制器适于控制对包括具有多个元块的预分配区域的存储介质的读/写访问。 控制器包括适于将多个元块控制为先进先出（FIFO）循环队列的逻辑。 该逻辑基于与FIFO循环队列相关联的顺序从多个元块中选择一个或多个元块，并且选择性地将逻辑块地址（LBA）映射表写入所选择的一个或多个元块。

    USB storage device
    7.
    发明授权
    USB storage device 有权
    USB存储设备

    公开(公告)号：US07578698B1

    公开(公告)日：2009-08-25

    申请号：US12111365

    申请日：2008-04-29

    申请人： Kong Beng Terang Thia ,  Pei Koh Lee ,  Wei Loon Ng ,  Kah Liang Gan

    发明人： Kong Beng Terang Thia ,  Pei Koh Lee ,  Wei Loon Ng ,  Kah Liang Gan

    IPC分类号： H01R13/60

    CPC分类号： H01R13/5804 ,  H01R13/60

    摘要： A storage device includes a housing having a cavity formed therein which contains a storage unit. A USB cable is electrically connected between a USB plug located outside of the cavity of the housing and the storage unit located in the cavity. A USB cable stress relief mount includes a first USB cable clamp formed in the housing. A second USB cable clamp is formed in the housing and is opposed to the first USB cable clamp. A third USB cable clamp is formed in the housing. The third USB cable clamp is positioned at an angle with the first and second USB cable clamps. The USB cable extends between, and is secured by, the first, second and third USB cable clamps.

    摘要翻译： 存储装置包括具有形成在其中的容纳存储单元的壳体。 USB电缆电连接在位于外壳空腔外部的USB插头和位于空腔中的存储单元之间。 USB电缆应力消除装置包括形成在壳体中的第一USB电缆夹。 在壳体中形成第二个USB电缆夹，并与第一个USB电缆夹相对。 在壳体中形成第三个USB电缆夹。 第三个USB电缆夹与第一个和第二个USB电缆夹形成一定角度。 USB电缆在第一，第二和第三USB电缆夹之间延伸并固定。

    Pattern-based defect description method
    10.
    发明授权
    Pattern-based defect description method 有权
    基于模式的缺陷描述方法

    公开(公告)号：US06985319B2

    公开(公告)日：2006-01-10

    申请号：US09851767

    申请日：2001-05-09

    申请人： Ying Ee Yip ,  Aik Chuan Lim ,  Yong Peng Chng ,  Steven TianChye Cheok ,  Wei Loon Ng

    发明人： Ying Ee Yip ,  Aik Chuan Lim ,  Yong Peng Chng ,  Steven TianChye Cheok ,  Wei Loon Ng

    IPC分类号： G11B5/09

    CPC分类号： G11B5/09 ,  G11B5/012 ,  G11B20/18 ,  G11B20/1883 ,  G11B2020/1826 ,  G11B2220/20

    摘要： The present invention provides a method of describing defects that requires less memory space than conventional methods. Entries of a first defect table are sorted according to the type of track layout, or zones. They are then grouped into clusters. Each cluster is characterized by a set of new parameters, including a starting sector, a scratch parameter, a span parameter, and an angle parameter. The new parameters are stored in a second table, replacing the corresponding entries in the first table. In this manner, a single entry in the second table replaces one or more entries in the first table with one entry in the first table.

    摘要翻译： 本发明提供了一种描述与常规方法相比需要更少存储空间的缺陷的方法。 根据轨道布局或区域的类型对第一个缺陷表的条目进行排序。 然后将它们分组成簇。 每个集群的特征在于一组新的参数，包括起始扇区，划痕参数，跨度参数和角度参数。 新参数存储在第二个表中，替换第一个表中的相应条目。 以这种方式，第二个表中的单个条目将第一个表中的一个或多个条目替换为第一个表中的一个条目。