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公开(公告)号：US06331920B1
公开(公告)日：2001-12-18
申请号：US09685418
申请日：2000-10-10
IPC分类号： G11B1512
CPC分类号： G11B15/125 , G11B5/00878 , G11B5/4893
摘要： A tape recording and playback unit records and reads back data from tape either in a high track density standard format or alternatively reads back data from a tape previously recorded on another unit in accordance with a previous low density standard track format. The unit includes a primary head positioning mechanism for positioning a primary multi-channel write/read head and a secondary head positioning mechanism for positioning a secondary read-only head. The secondary head may be positioned angularly to read longitudinal and azimuth track patterns, and also to be retracted when not needed.
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2.发明授权Backward compatible head and head positioning assembly for a linear digital tape drive 有权用于线性数字磁带驱动器的向后兼容头和头定位组件公开(公告)号：US06188532B1
公开(公告)日：2001-02-13
申请号：US09149733
申请日：1998-09-08
IPC分类号： G11B1512
CPC分类号： G11B15/125 , G11B5/00878 , G11B5/4893
摘要： A tape recording and playback unit records and reads back data from tape either in a high track density standard format or alternatively reads back data from a tape previously recorded on another unit in accordance with a previous low density standard track format. The unit includes a primary head positioning mechanism for positioning a primary multi-channel write/read head and a secondary head positioning mechanism for positioning a secondary read-only head. The secondary head may be positioned angularly to read longitudinal and azimuth track patterns, and also to be retracted when not needed.
摘要翻译： 磁带记录和重放单元以高轨道密度标准格式从磁带记录和读回数据，或者根据先前的低密度标准轨道格式从先前记录在另一个单元上的磁带读回数据。 该单元包括用于定位主要多通道写入/读取头的主要头部定位机构和用于定位第二只读头部的次级头部定位机构。 次级头部可以成角度地定位以读取纵向和方位轨迹图案，并且还可以在不需要时缩回。
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公开(公告)号：US4935700A
公开(公告)日：1990-06-19
申请号：US311159
申请日：1989-03-16
摘要： A fringe field, capacitive distance sensor for measuring the distance between a probe and the surface of the conductive body. The sensor comprises a conductive plate element mounted by the probe, the thickness of the plate element being substantially less than the height and width of the plate element. The plate element is positioned adjacent to and normal to the body surface, and the fringe field capacitance between the plate element and the body is measured, to thereby determine the distance between the probe and the body surface. The probe may be in contact with and scanned across the body surface, to provide surface profile measurements. A probe including a plurality of plate elements may be positioned inside an opening such as a hole, to measure the geometry of the hole. By maintaining the hole probe adjacent one electrode in contact with the hole wall, both profile and geometry measurements may be made. A noncontacting probe including one or more plate elements may be used to measure surface topography.
摘要翻译： 用于测量探针与导电体表面之间的距离的边缘场，电容距离传感器。 传感器包括由探针安装的导电板元件，板元件的厚度基本上小于板元件的高度和宽度。 板元件邻近并垂直于身体表面定位，并且测量板元件和身体之间的边缘场电容，从而确定探针与身体表面之间的距离。 探针可以与身体表面接触并扫描，以提供表面轮廓测量。 包括多个板元件的探针可以定位在诸如孔的开口内部，以测量孔的几何形状。 通过将孔探针保持在与孔壁接触的一个电极附近，可以进行轮廓和几何测量。 包括一个或多个板元件的非接触式探针可用于测量表面形貌。
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公开(公告)号：US4814691A
公开(公告)日：1989-03-21
申请号：US764164
申请日：1985-08-09
摘要： A fringe field, capacitive distance sensor for measuring the distance between a probe and the surface of the conductive body. The sensor comprises a conductive plate element mounted by the probe, the thickness of the plate element being substantially less than the height and width of the plate element. The plate element is positioned adjacent to and normal to the body surface, and the fringe field capacitance between the plate element and the body is measured, to thereby determine the distance between the probe and the body surface. The probe may be in contact with and scanned across the body surface, to provide surface profile measurements. A probe including a plurality of plate elements may be positioned inside an opening such as a hole, to measure the geometry of the hole. By maintaining the hole probe adjacent one electrode in electrode in contact with the hole wall, both profile and geometry measurements may be made. A noncontacting probe including one or more plate elements may be used to measure surface topography.
摘要翻译： 用于测量探针与导电体表面之间的距离的边缘场，电容距离传感器。 传感器包括由探针安装的导电板元件，板元件的厚度基本上小于板元件的高度和宽度。 板元件邻近并垂直于身体表面定位，并且测量板元件和身体之间的边缘场电容，从而确定探针与身体表面之间的距离。 探针可以与身体表面接触并扫描，以提供表面轮廓测量。 包括多个板元件的探针可以定位在诸如孔的开口内部，以测量孔的几何形状。 通过将孔探针保持在与孔壁接触的电极中的一个电极附近，可以进行轮廓和几何测量。 包括一个或多个板元件的非接触式探针可用于测量表面形貌。
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公开(公告)号：US4458282A
公开(公告)日：1984-07-03
申请号：US314912
申请日：1981-10-26
CPC分类号： G11B23/03 , G11B23/021 , G11B23/0325
摘要： A module for dust-free containment of rotating data storage media such as disc packs, both in and out of the drive, including top and bottom covers, sliding door access for read/write heads and filtered air, a carrying handle coupled to the media hub for carrying the module and for locking the media in a fixed position within the module while being transported, and a removable chuck plate cover for covering a magnetic chuck plate and for locking the media in a fixed position within the module while being stored.
摘要翻译： 用于无尘地容纳旋转数据存储介质（例如盘驱动器内外的盘组件）的模块，包括顶盖和底盖，用于读/写头和过滤空气的滑动门访问，耦合到介质的携带手柄 用于承载模块并用于在传送的同时将介质锁定在模块内的固定位置的毂;以及可移除的卡盘板盖，用于覆盖磁性卡盘板并且用于在存储时将介质锁定在模块内的固定位置。
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