PASSIVE NON-CONTACT MAGNETIC LATCH
    41.
    发明公开
    PASSIVE NON-CONTACT MAGNETIC LATCH 失效
    被动非接触LOCK

    公开(公告)号:EP0704090A1

    公开(公告)日:1996-04-03

    申请号:EP93923312.0

    申请日:1993-10-07

    发明人: MACPHERSON, Aaron

    IPC分类号: G11B19 G11B21

    摘要: A passive non-contact magnetic latch (60) for latching read-write heads of a disk drive over a landing area of the disk is disclosed. The magnetic latch forms a magnetic circuit for capturing a latch tab (48) within an air gap (61). Magnetic flux lines traverse the latch tab in a direction substantially perpendicular to a direction of movement of the latch tab.

    Apparatus and method for providing multimedia data
    42.
    发明公开
    Apparatus and method for providing multimedia data 失效
    提供多媒体数据的设备和方法

    公开(公告)号:EP0701246A2

    公开(公告)日:1996-03-13

    申请号:EP95480084.3

    申请日:1995-07-13

    摘要: A disk drive (102) stores multimedia data in long spiral data tracks. The tracks on opposite surfaces of the disk (201) spiral in opposite directions, so that a track on one surface can be read as the actuator (205) sweeps in, and a track on the opposite surface can be read as the actuator sweeps out. Because the actuator only follows spiral tracks without performing long seek operations, the actuator motor (207) can be reduced in size and stresses on actuator bearings and other parts are reduced. Additionally, due to reduced disturbances associated with seeks, it is possible to follow tracks more closely and therefore reduce the width of individual tracks. Further cost reductions are accomplished by spinning the disks at a slower speed and reducing the size of the spin motor (203) accordingly. Finally, data density can be increased simply because multimedia data does not require the same low error rate as conventional data. Preferably, a group of disk drives optimized for multimedia data is used to form a video-on-demand system. Compressed, interleaved portions of a video presentation, such as a motion picture, are stored in blocks on the spiral tracks. The drives read the blocks on one spiral track at a time from beginning to end, placing the data from these blocks in a set of buffers corresponding to different short time intervals. Video signals are output from the buffers. Any short time interval of the presentation can be accessed on demand by switching to the appropriate buffer.

    摘要翻译: 磁盘驱动器(102)将多媒体数据存储在长螺旋数据轨道中。 盘(201)的相对表面上的轨道以相反的方向盘旋,使得在致动器(205)扫入时可以读取一个表面上的轨道,并且当致动器扫出时可以读取相对表面上的轨道 。 因为致动器仅沿着螺旋轨道行进而没有执行长搜寻操作,所以致动器电机(207)的尺寸可以减小并且致动器轴承上的应力和其他部件减小。 此外,由于减少了与搜索相关的干扰,因此可以更紧密地跟踪轨道,从而减少单个轨道的宽度。 通过以较低的速度旋转磁盘并相应地减小旋转马达(203)的尺寸来进一步降低成本。 最后,仅仅因为多媒体数据不需要与常规数据相同的低错误率就可以提高数据密度。 优选地,使用针对多媒体数据优化的一组磁盘驱动器来形成视频点播系统。 视频演示的压缩,交织部分(例如运动图像)以螺旋轨道上的块存储。 驱动器从开始到结束一次读取一个螺旋轨道上的块,将来自这些块的数据放置在对应于不同短时间间隔的一组缓冲器中。 视频信号从缓冲区输出。 演示的任何短时间间隔都可以通过切换到适当的缓冲区来按需访问。

    Wiedergabegerät für einen scheibenförmigen Aufzeichnungsträger
    47.
    发明公开
    Wiedergabegerät für einen scheibenförmigen Aufzeichnungsträger 失效
    碟形记录载体的回放装置

    公开(公告)号:EP0312153A3

    公开(公告)日:1990-11-14

    申请号:EP88202183.5

    申请日:1988-10-03

    发明人: Heinrich, Norbert

    IPC分类号: G11B21/02

    CPC分类号: G11B21/12 G11B7/08 G11B21/02

    摘要: Ein Wiedergabegerät (2) weist einen über ein Zahnrad­getriebe (21) antreibbaren Schlitten (19) zum Verstellen einer Abtasteinrichtung (15) in radialer Richtung des Aufzeichnungsträgers zwischen einer innersten Spur (3) und einer äussersten Spur (4) auf, wobei bei auf die äus­serste Spur (4) verstellter Abtasteinrichtung (15) der Schlitten (19) mit einem Anschlag (38) an einem geräte­festen Anschlag (39) anliegt. Das Zahnradgetriebe (21) weist ein von einem Motor (20) her antreibbares Ritzel (24) und zwei mit dem Ritzel antreibbare, mit einer Feder (25) gegeneinander verspannte Zahnstangen (26, 27) auf, von denen eine Zahnstange (27) mit dem Schlitten (19) fest verbunden ist. Bei an dem gerätefesten Anschlag (39) an­liegendem Schlitten (19) steht die mit dem Schlitten fest verbundene Zahnstange (27) ausser Eingriff vom Ritzel (24) und liegt die ander Zahnstange (26) mit mindestens einem endseitigen Zahn (40) im Eingriffsbereich des Ritzels (24) und hält die Feder (25) den Schlitten (19) an den geräte­festen Anschlag (39) angelegt und die andere Zahnstange (26) in Richtung zu dem Ritzel (24) hin vorgespannt, wo­durch ein Überlastungsschutz für den Motor (20) und das Zahnradgetriebe (21) erreicht ist.

    Tunnel current data storage apparatus having separate lever bodies
    48.
    发明公开
    Tunnel current data storage apparatus having separate lever bodies 失效
    Tunnelstromdatenaufzeichnungsgerätmit getrennten Hebelanordnungen。

    公开(公告)号:EP0381113A2

    公开(公告)日:1990-08-08

    申请号:EP90101723.6

    申请日:1990-01-29

    IPC分类号: G11B9/00

    摘要: A data storage apparatus includes a first lever body (10) having a piezoelectric driving section, and a second lever body (20) which is disposed to separate from and to be perpendicular to the first lever body (10), and has a piezoelectric driving section. A recording medium (22) is formed on a portion of the second lever body (20), and records desired data. A plurality of probes (12₁ to 12 n ) are disposed on a portion of the first lever body (10) to oppose the recording medium (22) at a predetermined interval, and detect a change in state at predetermined positions on the recording medium (22) as a change in tunnel current or a change in three-dimensional pattern. A voltage applying circuit (39, 40) alternately applies predeter­mined voltages to the piezoelectric driving sections of the first and second lever bodies (10, 20) to separately drive the plurality of probes (12₁ to 12 n ) in different directions, thereby three-dimensionally scanning the recording medium (22).

    摘要翻译: 数据存储装置包括具有压电驱动部分的第一杠杆体(10)和与第一杠杆体(10)分离并垂直于第一杠杆体(10)的第二杠杆体(20),并具有压电驱动 部分。 记录介质(22)形成在第二杠杆体(20)的一部分上,并记录所需数据。 多个探针(121〜12n)设置在第一杆体(10)的与预定间隔相对的记录介质(22)的一部分上,并检测记录介质(22)上的预定位置的状态变化 )作为隧道电流的变化或三维图案的变化。 电压施加电路(39,40)交替地对第一和第二杠杆体(10,20)的压电驱动部分施加预定的电压,以分别驱动多个探针(121至12n)在不同方向上,从而三维地 扫描记录介质(22)。

    A disk data storage file
    49.
    发明公开
    A disk data storage file 失效
    Plattenstapel zur Datenspeicherung。

    公开(公告)号:EP0320520A1

    公开(公告)日:1989-06-21

    申请号:EP87118546.8

    申请日:1987-12-15

    IPC分类号: G11B21/02 G11B5/55 G11B7/08

    CPC分类号: G11B21/02 G11B5/5521 G11B7/08

    摘要: A carriage (40) for the transducer heads (44) of a disk file is supported on guide rails (34, 36, 38) mounted on the disk file frame (32). The carriage (40) carries a coil (52) which interacts with magnets (60, 61, 62, 63) held in a support structure (64, 66) which is mounted on resilient bushings (78) disposed on the ends of the guide rails (34, 36, 38) so that the guide rails and the frame are substantially isolated from the reaction forces produced on the magnets.

    摘要翻译: 用于盘文件的换能器头(44)的滑架(40)支撑在安装在盘文件架(32)上的导轨(34,36,38)上。 托架(40)承载与保持在支撑结构(64,66)中的磁体(60,61,62,63)相互作用的线圈,该支撑结构安装在设置在引导件的端部上的弹性衬套(78)上 轨道(34,36,38),使得导轨和框架基本上与在磁体上产生的反作用力隔离。