公开(公告)号：US06795262B1

公开(公告)日：2004-09-21

申请号：US10185970

申请日：2002-06-28

申请人： Raffi Codilian ,  Kent W. Gibbons ,  Steven L. Webb

发明人： Raffi Codilian ,  Kent W. Gibbons ,  Steven L. Webb

IPC分类号： G11B1904

CPC分类号： G11B5/5582 ,  G11B5/596 ,  G11B19/04

摘要： A method of expanding the on-track operational range of a disk drive based upon detection of an external vibration condition. The method involves detecting that a vibration state exists and, while the existence of the vibration state is detected, modifying the default on-track-declaration algorithm such that a data transfer operation can be completed in less time than if the default on-track-declaration algorithm was in use.

摘要翻译： 一种基于外部振动条件的检测来扩展磁盘驱动器的在轨操作范围的方法。 该方法涉及检测到振动状态存在，并且当检测到振动状态的存在时，修改默认的在轨声明算法，使得数据传送操作可以在比默认的在轨 - 声明算法正在使用中。

公开(公告)号：US06731447B2

公开(公告)日：2004-05-04

申请号：US09871877

申请日：2001-06-04

申请人： Keith G. Bunker ,  Edward P. deJong

发明人： Keith G. Bunker ,  Edward P. deJong

IPC分类号： G11B1904

CPC分类号： G06F21/6209 ,  G06F3/0623 ,  G06F3/0652 ,  G06F3/0676 ,  G06F21/62 ,  G06F2221/2143 ,  G11B5/024 ,  G11B5/09

摘要： A process that ensures the destruction of data files a user wishes to completely erase from a storage medium, such as a hard drive or removable disk. A system administrator can select a quantity of and pattern to be used in overwrites of the data file so that no one can recover the data from the storage medium. In embodiments, a graphical user interface (GUI) can be provided to allow user triggering of and parameter setting for the process. The GUI can be implemented at a device in which the storage medium is a component or can be implemented in a device driver GUI on a personal computer in communication with the device.

摘要翻译： 确保用户希望从诸如硬盘驱动器或可移动磁盘的存储介质完全擦除的数据文件的破坏的过程。 系统管理员可以选择要在数据文件重写中使用的数量和模式，以便无法从存储介质中恢复数据。 在实施例中，可以提供图形用户界面（GUI）以允许用户触发和对该过程进行参数设置。 GUI可以在其中存储介质是组件的设备上实现，或者可以在与设备通信的个人计算机上的设备驱动程序GUI中实现。

公开(公告)号：US06567233B1

公开(公告)日：2003-05-20

申请号：US09443375

申请日：1999-11-19

申请人： Kok-Kia Chew ,  Gerald Keith Lunn

发明人： Kok-Kia Chew ,  Gerald Keith Lunn

IPC分类号： G11B1904

CPC分类号： G11B19/04 ,  G11B5/59694

摘要： There is a need for low-cost and reliable shock-sensing methods in magnetic hard-disk drives to maintain data integrity when a drive is subjected to external shocks. The present invention uses a novel shock-sensing method that is both reliable and low-cost, using a modified head preamplifier to detect servo fields from adjacent disk surfaces, as well as the disk surface being written or read. Servo fields on adjacent surfaces may be staggered. When a write head is writing data to a data field on a disk surface, a read head may be reading a servo field from an adjacent surface, insuring that the write head is on-track. By staggering the servo fields from surface to surface, shock may be sensed by measuring displacement of read heads on adjacent surfaces between servo sectors on the write surface. In addition, the use of a shock sensor or the like may be eliminated, reducing drive component cost.

摘要翻译： 在磁性硬盘驱动器中需要低成本且可靠的冲击检测方法，以在驱动器受到外部冲击时保持数据完整性。 本发明采用改进的前置放大器来检测来自相邻盘表面的伺服磁场以及磁盘表面被写入或读取的可靠且低成本的新颖的冲击感测方法。 相邻表面上的伺服磁道可能交错。 当写入头将数据写入磁盘表面上的数据字段时，读取头可能正在从相邻表面读取伺服字段，从而确保写入磁头在轨上。 通过将伺服磁场从表面到表面交错，可以通过测量写入表面上的伺服扇区之间的相邻表面上的读取头的位移来感测冲击。 此外，可以消除使用冲击传感器等，从而降低驱动部件成本。

公开(公告)号：US06215608B1

公开(公告)日：2001-04-10

申请号：US09143801

申请日：1998-08-31

申请人： Louis Joseph Serrano ,  Mantle Man-Hon Yu

发明人： Louis Joseph Serrano ,  Mantle Man-Hon Yu

IPC分类号： G11B1904

CPC分类号： G11B5/59605 ,  G11B5/012 ,  G11B11/10576 ,  G11B11/10595 ,  G11B19/04 ,  G11B2005/001

摘要： A direct access storage device that (DASD) includes a sector servo control system that controls disk write operations by receiving a servo pattern readback signal in a sector, determining track centering for that sector, and generating a write inhibit signal before any write operations are initiated for that sector. The servo control system is able to make write inhibit decisions without software processing delays, enabling the system to produce a write inhibit signal quickly after an off-track excursion, and to terminate a write inhibit decision quickly after it is no longer needed.

摘要翻译： （DASD）的直接存取存储装置包括扇区伺服控制系统，其通过在扇区中接收伺服模式回读信号来控制盘写入操作，确定该扇区的轨道定心，以及在开始任何写操作之前产生写禁止信号 为该部门。 伺服控制系统能够在没有软件处理延迟的情况下进行禁止写入判定，使得系统能够在偏离轨道偏移之后快速产生写禁止信号，并且在不再需要之后快速终止写禁止判定。

公开(公告)号：US06765739B2

公开(公告)日：2004-07-20

申请号：US10100454

申请日：2002-03-18

申请人： Josh N. Hogan ,  David K. Towner

发明人： Josh N. Hogan ,  David K. Towner

IPC分类号： G11B1904

CPC分类号： G11B20/00826 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00253 ,  G11B20/00579

摘要： A method and apparatus for creating a machine-readable medium such as a CD or a DVD disc is disclosed. The disc includes encoded copy protection data that, when decoded and re-encoded, produces a tracking prevention sequence of bits that causes a duplicate disc (containing the re-encoded copy protection data) to temporarily lose tracking. The temporary loss of tracking is utilized to render the duplicated disc unusable by placing key data immediately following the encoded copy protection data.

摘要翻译： 公开了一种用于创建诸如CD或DVD盘之类的机器可读介质的方法和装置。 光盘包括编码的拷贝保护数据，当被解码和重新编码时，产生一个跟踪防止的比特序列，使得重复的光盘（包含重新编码的拷贝保护数据）暂时失去跟踪。 通过将密钥数据紧随着编码的拷贝保护数据之后，利用临时的跟踪丢失来使复制的光盘不可用。

公开(公告)号：US06510014B2

公开(公告)日：2003-01-21

申请号：US09761736

申请日：2001-01-18

申请人： Toshiyuki Kikuta ,  Takao Horiguchi ,  Tsuyoshi Arai ,  Yoshikatsu Fujii ,  Shinji Matsushita

发明人： Toshiyuki Kikuta ,  Takao Horiguchi ,  Tsuyoshi Arai ,  Yoshikatsu Fujii ,  Shinji Matsushita

IPC分类号： G11B1904

CPC分类号： G11B5/59627 ,  G11B5/00 ,  G11B5/012 ,  G11B19/04 ,  G11B33/08 ,  G11B33/10 ,  G11B33/14 ,  G11B2005/001

摘要： In a magnetic disk device and other memory devices, the scale and cycle of disturbance applied to each memory device are monitored to make a distinction between a harmful shock and harmless vibrations and detect the disturbance. Values at at least two points, of a waveform signal corresponding to the disturbance are captured. A) The above distinction is carried out from the size or magnitude of the inclination of a straight line defined by the two points. B) The function of capturing and storing the waveform signal corresponding to the disturbance as digital data, and outputting a slice level value for providing suitable detection sensitivity from a conversion table based on the digital data, or correcting and adjusting it and outputting the result is further set.

公开(公告)号：US06487037B1

公开(公告)日：2002-11-26

申请号：US09661326

申请日：2000-09-13

申请人： David Harwood McMurtry

发明人： David Harwood McMurtry

IPC分类号： G11B1904

CPC分类号： G11B33/08

摘要： A disk drive has a base containing disks that are mounted on a central drive hub. A cover is mounted and sealed to the base. The cover has an aperture that is sealed with a flexible membrane. The membrane is selectively deflected into contact with the hub or one of the disks by a displacement device. The displacement device is completely external to the sealed drive to avoid contaminating the drive. In one version, a disposable plastic snap clamp is secured to the drive to lock the disks from rotation. A pusher finger on the clamp automatically engages and deflects the membrane into frictional engagement with the disk to immobilize it. The locked position is used during periods of non-operation of the drive. When the drive is operational, the clamp is removed to release the disks for rotation.

摘要翻译： 磁盘驱动器具有包含安装在中央驱动器集线器上的磁盘的基板。 盖子安装并密封到基座。 该盖具有用柔性膜密封的孔。 选择性地通过位移装置将膜偏转成与轮毂或其中一个盘接触。 位移装置完全在密封驱动器的外部，以避免污染驱动器。 在一个版本中，一次性塑料卡扣夹固定到驱动器上以锁定盘的旋转。 夹具上的推动器手指自动接合并偏转膜与盘摩擦接合以使其固定。 锁定位置在驱动器不工作期间使用。 当驱动器可操作时，夹具被移除以释放盘旋转。

公开(公告)号：US06226140B1

公开(公告)日：2001-05-01

申请号：US09115490

申请日：1998-07-14

申请人： Louis Joseph Serrano ,  Mantle Man-Hon Yu

发明人： Louis Joseph Serrano ,  Mantle Man-Hon Yu

IPC分类号： G11B1904

CPC分类号： G11B19/04 ,  G11B5/59694

摘要： A direct access storage device (DASD) servo control system detects a servo pattern recorded in multiple cells of a servo sector and compares the cell-to-cell readback signal independently of the position error signal (PES). A servo sector of the disk contains multiple servo identification cells such that a servo readback signal is generated for each cell. If the servo signal data from two successive cells of a single sector, or from the same cell of successive sectors, differs by an amount greater than a predetermined error threshold, then a physical jarring or shock is indicated and the servo control system causes a write inhibit command to the write channel.

摘要翻译： 直接访问存储设备（DASD）伺服控制系统检测记录在伺服扇区的多个单元中的伺服模式，并且独立于位置误差信号（PES）来比较单元间单元读回信号。 盘的伺服扇区包含多个伺服识别单元，从而为每个单元产生伺服回读信号。 如果来自单个扇区或连续扇区的相同单元的两个连续单元的伺服信号数据相差大于预定误差阈值，则指示物理振荡或震动，并且伺服控制系统引起写入 禁止写入通道的命令。

公开(公告)号：US06754021B2

公开(公告)日：2004-06-22

申请号：US09813081

申请日：2001-03-19

申请人： Masashi Kisaka ,  Yutaka Ozawa ,  Kenji Toga

发明人： Masashi Kisaka ,  Yutaka Ozawa ,  Kenji Toga

IPC分类号： G11B1904

CPC分类号： G11B5/5582 ,  G11B19/04 ,  G11B21/12 ,  G11B25/043 ,  G11B33/08

摘要： A rotating storage apparatus is provided for high recording reliability in an environment in which a shock or vibration exists. Provided are means for outputting a shock out signal (SO) if an output from an acceleration sensor exceeds a predetermined threshold, a latch circuit 21 for outputting a latch signal at high level during a predetermined write inhibit period after the shock out signal (SO) is input, and a write gate signal (WG) which goes high when a write is enabled. A write enable signal is generated by an AND circuit 23 having a NOT output of the latch signal as well as the write gate signal WG as its inputs.

摘要翻译： 提供了一种旋转存储装置，用于在存在冲击或振动的环境中实现高记录可靠性。 提供了如果加速度传感器的输出超过预定阈值则输出冲击输出信号（SO）的装置，用于在冲击输出信号（SO）之后的预定写入禁止期间内以高电平输出锁存信号的锁存电路21， 和写入门信号（WG），当写入被使能时变为高电平。 写使能信号由具有锁存信号的非输出的AND电路23以及写入门信号WG作为其输入产生。

公开(公告)号：US06643085B2

公开(公告)日：2003-11-04

申请号：US09444492

申请日：1999-11-19

申请人： Katsumi Shirai ,  Ichiro Anzai

发明人： Katsumi Shirai ,  Ichiro Anzai

IPC分类号： G11B1904

CPC分类号： G11B19/12 ,  G06F21/10 ,  G06F21/62 ,  G06F21/78 ,  G11B19/06 ,  G11B20/00086 ,  G11B20/0013 ,  G11B20/00144 ,  G11B20/00152 ,  G11B20/00797 ,  G11B20/1217 ,  G11B2220/2512 ,  G11B2220/2525 ,  G11B2220/2537

摘要： An accessible count information which is the number of accessible times for recording medium is recorded on an additional recording dedicated area in the recording medium. Each time the recording medium is accessed, the accessible count information is subtracted and the value of remaining accessible count information is recorded in a non-recorded portion of the dedicated area. In this case, the access to the recording medium is controlled based on the minimum value of the accessible count information recorded in the dedicated area.

摘要翻译： 作为记录介质的可访问次数的可访问计数信息被记录在记录介质中的附加记录专用区域上。 每次访问记录介质时，减去可访问计数信息，并将剩余的可访问计数信息的值记录在专用区域的未记录部分中。 在这种情况下，基于记录在专用区域中的可访问计数信息的最小值来控制对记录介质的访问。