Track seek method utilizing an ideal signal
    2.
    发明授权
    Track seek method utilizing an ideal signal 失效
    使用理想信号的追踪方法

    公开(公告)号:US5210726A

    公开(公告)日:1993-05-11

    申请号:US833460

    申请日:1992-02-07

    IPC分类号: G11B7/085

    CPC分类号: G11B7/08541

    摘要: A track seek method for a disk drive system. In the seek method of the present invention, the head is moved according to the characteristics of an ideal, electronically generated signal which is independent from data read off the disk. By varying the characteristics of the ideal signal, the seek profile is controlled. The ideal signal is sampled at times specified by an error signal which is based upon data read off the disk. The movement of the head is adjusted according to the sampled signal. Since track crossings correspond to ideal signal cycles, the number of tracks crossed is determined by counting the number of cycles of the ideal signal. Consequently, the position of the head is known at all times throughout the seek, thereby maintaining the seek in a closed-loop configuration during the entire seek. When the appropriate number of tracks have been counted, the head is stopped on the destination track and the head can access data contained therein. Furthermore, the seek operation's dynamic range may be increased by extending the range of each cycle of the ideal signal to cover more than one track.

    摘要翻译: 磁盘驱动系统的追踪方法。 在本发明的寻道方法中,根据与从磁盘读出的数据无关的理想的电子生成信号的特性来移动磁头。 通过改变理想信号的特性,可以控制寻道曲线。 在由基于从盘读出的数据的误差信号指定的时间采样理想信号。 根据采样信号调整磁头的移动。 由于轨道交叉对应于理想的信号周期,所以通过对理想信号的周期数进行计数来确定交叉的轨迹数。 因此,在整个搜索期间,头部的位置始终是已知的,从而在整个搜索期间将查找保持在闭环配置中。 当已经计数了适当数量的轨道时,头部停在目的地轨道上,并且头部可以访问其中包含的数据。 此外,可以通过将理想信号的每个周期的范围扩展以覆盖多于一个轨道来增加寻道操作的动态范围。

    Semi-permanent enclosure for optical data storage device
    4.
    发明授权
    Semi-permanent enclosure for optical data storage device 失效
    半永久性光学数据存储设备

    公开(公告)号:US06240061B1

    公开(公告)日:2001-05-29

    申请号:US09517091

    申请日:2000-03-01

    IPC分类号: G11B724

    摘要: A semi permanent enclosure for an optical data storage device has a first film dimensioned to overlie the read surface of the optical data storage device and a second film dimensioned to overlie the non-read surface of the optical data storage device. The enclosure includes a rim arrangement having an L-shaped cross-section extending around the periphery of the optical data storage device. The first film may have an optical couplant on the surface thereof destined for attachment to the optical data storage device. The optical couplant preferably has a refractive index compatible with that of the optical data storage device to minimize losses and distortion of signals. The optical couplant may also be used with the second film.

    摘要翻译: 用于光学数据存储设备的半永久性外壳具有尺寸设置为覆盖在光学数据存储设备的读取表面上的第一膜和设置成覆盖在光学数据存储设备的非读取表面上的第二膜。 外壳包括具有围绕光数据存储装置的周边延伸的L形横截面的边缘装置。 第一膜可以在其表面上具有旨在附着到光学数据存储装置的光学耦合剂。 光学耦合器优选具有与光学数据存储装置的折射率兼容的折射率,以最小化信号的损耗和失真。 光学耦合剂也可以与第二薄膜一起使用。

    Semi-permanent enclosure for optical data storage device
    6.
    发明授权
    Semi-permanent enclosure for optical data storage device 失效
    半永久性光学数据存储设备

    公开(公告)号:US6144632A

    公开(公告)日:2000-11-07

    申请号:US875439

    申请日:1997-11-17

    摘要: A semi-permanent enclosure for an optical data storage device 60 comprises a first film 50 dimensioned to overlie the read surface of device 60 and a second film 30 dimensioned to overlie the non-read surface. The enclosure includes rim means 20, 40 having an L-shaped cross-section extending around the periphery of device 60. Film 50 may have optical couplant on the surface thereof destined for attachment to device 60 in use. The optical couplant preferably has a refractive index compatible with that of device 60 to minimise losses and distortion of signals. Optical couplant may also be used with second film 30. The optical couplant may be a material capable of flowing into minor defects on the surface of device 60. This allows minor blemishes to repaired so that stored data is not compromised. Alternatively, the optical couplant may be a solid malleable material interposed between device 60 and the film(s) or may comprise the film itself.

    摘要翻译: PCT No.PCT / GB96 / 00036 Sec。 371日期:1997年11月17日 102(e)日期1997年11月17日PCT 1996年1月10日PCT PCT。 出版物WO96 / 21928 PCT 日期1996年7月18日用于光学数据存储装置60的半永久性外壳包括尺寸设置为覆盖在装置60的读取表面上的第一膜50和尺寸为覆盖在非读取表面上的第二膜30。 外壳包括边缘装置20,40,其具有围绕装置60的周边延伸的L形横截面。薄膜50在其表面上可以具有旨在附着到使用中的装置60的光学耦合剂。 光学耦合剂优选具有与装置60的折射率相适应的折射率,以最小化信号的损耗和失真。 光学耦合剂也可以与第二薄膜30一起使用。光学耦合剂可以是能够在装置60的表面上流动成小的缺陷的材料。这允许修复稍微的瑕疵,使得存储的数据不被损害。 或者,光学耦合剂可以是介于器件60和膜之间的固体可延展材料,或者可以包括膜本身。