公开(公告)号：US08711500B1

公开(公告)日：2014-04-29

申请号：US13168551

申请日：2011-06-24

申请人： Theen-Leong Fong ,  William Chong ,  Hasni Zaidy Abdul Hamid ,  Muhammad Nur Syukri Bin Ahmad Shukor ,  Syaiful Hazli Hamdan ,  Petrus Hu ,  Philip Bernard Saram

发明人： Theen-Leong Fong ,  William Chong ,  Hasni Zaidy Abdul Hamid ,  Muhammad Nur Syukri Bin Ahmad Shukor ,  Syaiful Hazli Hamdan ,  Petrus Hu ,  Philip Bernard Saram

IPC分类号： G11B27/36

CPC分类号： G11B27/36 ,  G11B20/1816 ,  G11B2020/1826 ,  G11B2220/2516

摘要： A disk drive is disclosed that enables defect margining during disk drive burn-in testing. The disk drive comprises: a disk comprising a plurality of tracks; a head actuated over the disk; and a processor. The processor is configured to: perform disk drive burn-in testing to detect media defects; generate an initial defect list based upon detected media defects for sectors; generate an extended defect list that includes detected media defects and extended defect margins from the detected media defects; and utilize the extended defect list for burn-in, wherein a spare area of the disk allows for the detected media defects and the extended defect margins.

摘要翻译： 公开了一种磁盘驱动器，其在磁盘驱动器老化测试期间实现缺陷裕度。 磁盘驱动器包括：包括多个轨道的盘; 磁头上的磁头; 和处理器。 处理器配置为：执行磁盘驱动器老化测试以检测介质缺陷; 基于扇区的检测到的媒体缺陷产生初始缺陷列表; 生成扩展缺陷列表，其包括检测到的介质缺陷和来自检测到的介质缺陷的扩展缺陷余量; 并利用扩展缺陷列表进行老化，其中盘的备用区域允许检测到的介质缺陷和扩展的缺陷余量。

公开(公告)号：US07839588B1

公开(公告)日：2010-11-23

申请号：US12122710

申请日：2008-05-18

申请人： Dean V. Dang ,  Kek Ming Chua ,  Philip Bernard Saram ,  William J. Seamon

发明人： Dean V. Dang ,  Kek Ming Chua ,  Philip Bernard Saram ,  William J. Seamon

IPC分类号： G11B27/36 ,  G11B5/09

CPC分类号： G11B5/09 ,  G11B20/18 ,  G11B27/36 ,  G11B2020/1896 ,  G11B2220/2516 ,  G11B2220/2525 ,  G11B2220/2537

摘要： Defects are identified in a disk drive by first writing a pattern of tracks to a disk surface in the disk drive, the pattern of tracks including written tracks alternating with unwritten tracks. The written tracks of the pattern of tracks are read, and a defect in a portion of a first written track is detected. An unread portion of a first unwritten track is then identified as comprising a defect based at least in part on the defect in the first written track, the first unwritten track located proximate the first written track.

摘要翻译： 通过首先将磁迹图案写入磁盘驱动器中的磁盘表面，磁盘驱动器中的缺陷被识别，磁道的图案包括与未写入轨道交替的写入轨迹。 读取轨道图案的写入轨迹，并且检测到第一写入轨迹的一部分中的缺陷。 然后将第一未写入轨道的未读部分识别为至少部分地基于第一写入轨道中的缺陷，位于第一写入轨道附近的第一未写入轨道来构成缺陷。

公开(公告)号：US07369340B1

公开(公告)日：2008-05-06

申请号：US11314483

申请日：2005-12-21

申请人： Dean V. Dang ,  Philip Bernard Saram ,  Chakrit Choosang ,  Jonas A. Goode

发明人： Dean V. Dang ,  Philip Bernard Saram ,  Chakrit Choosang ,  Jonas A. Goode

IPC分类号： G11B27/36 ,  G11B5/09

CPC分类号： G11B5/59688

摘要： A disk drive is disclosed comprising a disk having top and bottom surfaces, and top and bottom heads actuated over the top and bottom surfaces, respectively. Control circuitry detects a warping of the disk by writing a first test pattern to the top surface, reading the first test pattern to generate a first read signal, monitoring a first read signal value proportional to an amplitude of the first read signal, writing a second test pattern to the bottom surface, reading the second test pattern to generate a second read signal, monitoring a second read signal value proportional to an amplitude of the second read signal, and processing the first and second read signal values to detect a negative correlation between the amplitudes of the first and second read signals.

摘要翻译： 公开了一种磁盘驱动器，其包括具有顶表面和底表面的盘，并且顶顶和底头分别在顶表面和底表面上被致动。 控制电路通过向第一表面写入第一测试图案来检测盘的翘曲，读取第一测试图案以产生第一读取信号，监测与第一读取信号的幅度成比例的第一读取信号值，写入第二读取信号 测试图案到底面，读取第二测试图案以产生第二读取信号，监测与第二读取信号的幅度成比例的第二读取信号值，以及处理第一和第二读取信号值以检测第一和第二读取信号之间的负相关性 第一和第二读信号的振幅。

公开(公告)号：US08749910B1

公开(公告)日：2014-06-10

申请号：US13465716

申请日：2012-05-07

申请人： Dean V. Dang ,  Colin W. Morgan ,  Philip Bernard Saram

发明人： Dean V. Dang ,  Colin W. Morgan ,  Philip Bernard Saram

IPC分类号： G11B5/02

CPC分类号： G11B5/09 ,  G11B5/012 ,  G11B5/5534

摘要： Disclosed is a disk drive that is operable with a host computer that includes a printed circuit board assembly (PCBA) having a system on a chip (SOC). The disk drive comprises: a hard disk drive assembly (HDA); and a non-volatile semiconductor memory (NVSM). The NVSM is located in the HDA and is couplable to the SOC of the host computer. The NVSM is configured to store configuration data for disk drive operation. The configuration data is configured to be retrieved by the SOC for controlling disk drive operations.

摘要翻译： 公开了一种可与主计算机一起操作的磁盘驱动器，该主计算机包括具有片上系统（SOC）的印刷电路板组件（PCBA）。 磁盘驱动器包括：硬盘驱动器组件（HDA）; 和非易失性半导体存储器（NVSM）。 NVSM位于HDA中，可与主机的SOC耦合。 NVSM配置为存储用于磁盘驱动器操作的配置数据。 配置数据被配置为由用于控制磁盘驱动器操作的SOC来检索。