公开(公告)号：US20020138808A1

公开(公告)日：2002-09-26

申请号：US09969288

申请日：2001-10-01

申请人： DCARD, INC.

发明人： Francis K. King ,  Jeffrey F. Liu ,  Shand-Ling Mao

IPC分类号： G06F011/00

CPC分类号： G11B7/26 ,  G06K7/084 ,  G06K19/06009 ,  G06K19/06196 ,  G11B5/00 ,  G11B5/00804 ,  G11B5/00808 ,  G11B5/53 ,  G11B5/58 ,  G11B5/59633 ,  G11B5/80 ,  G11B7/0033 ,  G11B7/007 ,  G11B7/0857 ,  G11B7/08576 ,  G11B7/0938 ,  G11B7/12 ,  G11B17/0408 ,  G11B20/1833 ,  G11B21/02 ,  G11B21/04 ,  G11B21/081 ,  G11B25/04 ,  G11B25/046

摘要： This invention discloses a flat data storage medium that includes a plurality of substantially parallel data arc-segments. The data arcs further include at least one full circle data track provided for obtaining a measurement of an average amplitude of data signals over the full circle data track for calibrating a pickup head implemented for reading data from the data arc-segments. This invention further discloses a data storage system for accessing data stored in a data storage medium. The data storage system includes dynamic head loading/unloading system that includes a handle for pushing a linkage connected to the handle for loading and unloading the data storage medium to an engaged and disengaged positions relative to a pickup head for accessing data disposed on the data storage medium. The dynamic head loading/unloading system further includes a locking means for automatically locking the data storage medium inside the data storage system when the linkage is disposed at an engaged-position. The dynamic head loading/unloading system further includes a data-storage medium orientation-selection means for cooperating and adapting the data storage medium inside the data storage system only when the data storage medium is inserted into the data storage system in a predefined orientation.

摘要翻译： 本发明公开了一种平面数据存储介质，其包括多个基本上平行的数据弧段。 数据弧还包括至少一个全圆数据轨道，用于获得全圆数据轨迹上的数据信号的平均幅度的测量值，用于校准实现用于从数据弧段读取数据的拾取头。 本发明还公开了一种用于访问存储在数据存储介质中的数据的数据存储系统。 数据存储系统包括动态磁头装载/卸载系统，其包括用于推动连接到手柄的连杆的手柄，用于将数据存储介质装载和卸载到相对于拾取头的接合和脱离位置，用于访问设置在数据存储器 中。 动态磁头装载/卸载系统还包括锁定装置，用于当联动装置设置在接合位置时，将数据存储介质自动锁定在数据存储系统内。 动态头装载/卸载系统还包括数据存储介质取向选择装置，用于仅当数据存储介质以预定义的方向插入到数据存储系统中时才将数据存储介质协调并适配数据存储系统内部。

公开(公告)号：US20020186495A1

公开(公告)日：2002-12-12

申请号：US10191959

申请日：2002-07-08

申请人： DCARD, INC.

发明人： Jeffrey F. Liu ,  Francis K. King

IPC分类号： G11B021/02 ,  G11B025/04 ,  G11B005/09

CPC分类号： G11B7/24012 ,  G06K7/084 ,  G06K19/06009 ,  G06K19/06196 ,  G11B5/00 ,  G11B5/00804 ,  G11B5/00808 ,  G11B5/53 ,  G11B5/58 ,  G11B5/59633 ,  G11B5/80 ,  G11B7/0033 ,  G11B7/0857 ,  G11B7/08576 ,  G11B7/0938 ,  G11B7/12 ,  G11B7/24082 ,  G11B7/26 ,  G11B17/0408 ,  G11B21/02 ,  G11B21/04 ,  G11B21/081 ,  G11B25/04 ,  G11B25/046

摘要： This invention discloses a magnetic servo writer. The magnetic servo writer includes a magnetic pickup head for rotationally moving over and writing servo data in a magnetic flat data-storage medium. The magnetic servo writer further includes a clock head for providing clock signals to the pickup head and to write clock signals in the clock disk. The magnetic servo writer further includes a control circuit for controlling the magnetic pickup head for writing the servo data on the magnetic flat data-storage medium. The magnetic servo writer further includes a servo pattern layout circuit for controlling the magnetic pickup head for writing the servo data on the magnetic flat data-storage medium with predefined servo patterns. The magnetic servo writer further includes a derived index control circuit for deriving indices from a fixed index provided on the magnetic flat data-storage medium. The magnetic servo writer further includes a fixed index and clock track circuit for providing a fix index and a clock signal for controlling the magnetic pickup head for writing the servo data on the magnetic flat data-storage medium. The magnetic servo writer further includes a head move circuit for controlling a movement of the magnetic pickup head for writing the servo data on the magnetic flat data-storage medium. The magnetic servo writer further includes a medium movement circuit for controlling a linear movement of the magnetic flat data-storage medium for writing the servo data on the magnetic flat data-storage medium.

公开(公告)号：US20010033446A1

公开(公告)日：2001-10-25

申请号：US09774200

申请日：2001-01-29

申请人： DCARD, INC.

发明人： Francis K. King ,  Jeffrey F. Liu

IPC分类号： G11B005/09 ,  G11B021/02 ,  G11B005/58 ,  G11B005/55 ,  G11B025/04

CPC分类号： G06K7/084 ,  G06K19/06009 ,  G06K19/06196 ,  G11B5/00804 ,  G11B5/00808 ,  G11B5/53 ,  G11B5/55 ,  G11B5/58 ,  G11B5/59633 ,  G11B5/80 ,  G11B7/0033 ,  G11B7/007 ,  G11B7/0857 ,  G11B7/08576 ,  G11B7/0938 ,  G11B7/12 ,  G11B7/24012 ,  G11B7/24082 ,  G11B7/26 ,  G11B17/0408 ,  G11B21/02 ,  G11B21/04 ,  G11B21/081 ,  G11B25/04 ,  G11B25/046

摘要： This invention discloses a data access system for access data stored on a flat medium. The data access system includes a pickup head rotating over the flat medium. The data access system further includes at least one stepping motor for discretely moving the flat medium substantially along at least one lateral direction perpendicular to a rotational axis of the pickup head. The data access system further includes a closed loop control mechanism for controlling the stepping motor for allowing the pickup head to read data from a servo segment on the flat medium. The controller further includes an open loop control mechanism for rotating the pickup head for reading data from and writing data to a data segment disposed right next to the servo segment on the flat medium.

摘要翻译： 本发明公开了一种存储在平坦介质上的访问数据的数据访问系统。 数据访问系统包括在平坦介质上旋转的拾取头。 数据访问系统还包括至少一个步进电机，用于基本上沿垂直于拾取头的旋转轴线的至少一个横向方向离散地移动平坦介质。 数据访问系统还包括一个闭环控制机构，用于控制步进电机，以允许拾取头从平面介质上的伺服段读取数据。 控制器还包括开环控制机构，用于旋转拾取头，用于从平面介质上的伺服段附近设置的数据段读取数据并将数据写入数据段。