利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

17 条记录 (耗时 0.017 秒)

    Method of writing data simultaneously on a plurality of tracks of an optical disk, and apparatus therefor
    2.
    发明授权
    Method of writing data simultaneously on a plurality of tracks of an optical disk, and apparatus therefor 失效
    在光盘的多个磁道上同时写入数据的方法及其装置

    公开(公告)号：US5592444A

    公开(公告)日：1997-01-07

    申请号：US254187

    申请日：1994-06-06

    申请人： Amir Alon ,  Shlomo Shapira ,  Itzhak Katz

    发明人： Amir Alon ,  Shlomo Shapira ,  Itzhak Katz

    IPC分类号： G11B7/0045 ,  G11B7/09 ,  G11B7/125 ,  G11B7/14 ,  G11B11/00 ,  G11B7/00

    CPC分类号： G11B7/127 ,  G11B7/0045 ,  G11B7/0901 ,  G11B7/14

    摘要： A method of writing data simultaneously on a plurality of tracks of an optical disk, comprises providing an array of light sources, each light source being independently modulated, providing means to determine the position of each light source with respect to the center of a given track, and varying the intensity of each light source so as to generate a plurality of writing light beams, each generated by a plurality of adjacent light sources, each of the said light beams having the desired width, intensity and position on the written track.

    摘要翻译： 一种在光盘的多个磁道上同时写入数据的方法，包括提供光源阵列，每个光源被独立调制，提供用于确定每个光源相对于给定轨道的中心的位置的装置 并且改变每个光源的强度，以产生由多个相邻光源产生的多个写入光束，每个所述光束在所写入的轨道上具有期望的宽度，强度和位置。

    Optical disk reader
    5.
    发明授权
    Optical disk reader 失效
    光盘阅读器

    公开(公告)号：US5566159A

    公开(公告)日：1996-10-15

    申请号：US315432

    申请日：1994-09-30

    申请人： Shlomo Shapira

    发明人： Shlomo Shapira

    IPC分类号： G11B7/005 ,  G11B7/125 ,  G11B7/13 ,  G11B7/14 ,  G11B7/00

    CPC分类号： G11B7/131 ,  G11B7/005 ,  G11B7/125 ,  G11B7/14

    摘要： An optical disk reader system comprises (1) a wide area illumination source for illuminating at least a part of one track of an optical disk; (2) a detector for detecting light reflected from the optical disk illuminated by the wide area illumination source; and (3) a detector for summing the light in the along-track direction detected by the detector.

    摘要翻译： 一种光盘读取器系统包括：（1）用于照亮光盘的一个轨道的至少一部分的广域照明源; （2）用于检测由所述广域照明光源照射的从所述光盘反射的光的检测器; 和（3）检测器，用于对由检测器检测的沿着轨道方向的光进行求和。

    Focussing system and methods for multi- track optical disk apparatus
    7.
    发明授权
    Focussing system and methods for multi- track optical disk apparatus 失效
    多轨光盘设备的聚焦系统和方法

    公开(公告)号：US5774432A

    公开(公告)日：1998-06-30

    申请号：US842936

    申请日：1997-04-25

    申请人： Amir Alon ,  Jacob Finkelstein ,  Itzhak Katz ,  Michael Naor ,  Shlomo Shapira

    发明人： Amir Alon ,  Jacob Finkelstein ,  Itzhak Katz ,  Michael Naor ,  Shlomo Shapira

    IPC分类号： G11B7/09 ,  G11B7/13 ,  G11B7/135 ,  G11B7/14 ,  G11B7/095

    CPC分类号： G11B7/131 ,  G11B7/0909 ,  G11B7/0912 ,  G11B7/094 ,  G11B7/1372 ,  G11B7/14

    摘要： Focussing system methods and apparatus are provided for apparatus capable of simultaneously reading multiple tracks of an optical disk. Astigmatism introduced by a cylindrical lens disposed adjacent to the light source, or before the focus detectors arranged at the edge of a wide-area field of illumination, is used to compute an error signal corresponding to the degree of out-of-focus, which error signal is provided to a servo-system that moves the objective lens to correct the focus. An alternative embodiment employs a pair of focus detectors and a pair of micro-lenses having different focal lengths that directs the reflected light onto the focus detectors to generate a focus correction signal. Further alternative embodiments of employing the astigmatism method of focussing are described.

    摘要翻译： 提供了能够同时读取光盘的多个轨道的装置的聚焦系统方法和装置。 由与邻近光源设置的柱面透镜或者布置在大面积照明区域的边缘处的焦点检测器之前的散光引入的散光用于计算对应于失焦程度的误差信号，其中 误差信号被提供给移动物镜以校正焦点的伺服系统。 替代实施例采用一对焦点检测器和具有不同焦距的一对微透镜，其将反射光引导到焦点检测器上以产生聚焦校正信号。 描述采用聚焦散光方法的其它替代实施例。

    Focussing system and methods for multi-track optical disk apparatus
    8.
    发明授权
    Focussing system and methods for multi-track optical disk apparatus 失效
    多轨光盘设备的聚焦系统和方法

    公开(公告)号：US5708634A

    公开(公告)日：1998-01-13

    申请号：US531764

    申请日：1995-09-20

    申请人： Amir Alon ,  Jacob Finkelstein ,  Itzhak Katz ,  Michael Naor ,  Shlomo Shapira

    发明人： Amir Alon ,  Jacob Finkelstein ,  Itzhak Katz ,  Michael Naor ,  Shlomo Shapira

    IPC分类号： G11B7/09 ,  G11B7/13 ,  G11B7/135 ,  G11B7/14 ,  G11B7/095

    CPC分类号： G11B7/131 ,  G11B7/0909 ,  G11B7/0912 ,  G11B7/094 ,  G11B7/1372 ,  G11B7/14

    摘要： Focussing system methods and apparatus are provided for apparatus capable of simultaneously reading multiple tracks of an optical disk. Astigmatism introduced by a cylindrical lens disposed adjacent to the light source, or before the focus detectors arranged at the edge of a wide-area field of illumination, is used to compute an error signal corresponding to the degree of out-of-focus, which error signal is provided to a servo-system that moves the objective lens to correct the focus. An alternative embodiment employs a pair of focus detectors and a pair of micro-lenses having different focal lengths that directs the reflected light onto the focus detectors to generate a focus correction signal. Further alternative embodiments of employing the astigmatism method of focussing are described.

    摘要翻译： 提供了能够同时读取光盘的多个轨道的装置的聚焦系统方法和装置。 由与邻近光源设置的柱面透镜或者布置在大面积照明区域的边缘处的焦点检测器之前的散光引入的散光用于计算对应于失焦程度的误差信号，其中 误差信号被提供给移动物镜以校正焦点的伺服系统。 替代实施例采用一对焦点检测器和具有不同焦距的一对微透镜，其将反射光引导到焦点检测器上以产生聚焦校正信号。 描述采用聚焦散光方法的其它替代实施例。

    Method and apparatus for reading data
    9.
    发明授权
    Method and apparatus for reading data 失效
    读取数据的方法和装置

    公开(公告)号：US5598393A

    公开(公告)日：1997-01-28

    申请号：US394309

    申请日：1995-02-24

    申请人： Amir Alon ,  Shlomo Shapira ,  Itzhak Katz

    发明人： Amir Alon ,  Shlomo Shapira ,  Itzhak Katz

    IPC分类号： G11B7/09 ,  G11B7/12 ,  G11B7/125 ,  G11B7/13 ,  G11B7/135 ,  G11B7/14 ,  G11B7/00

    CPC分类号： G11B7/131 ,  G11B7/0901 ,  G11B7/12 ,  G11B7/127 ,  G11B7/128 ,  G11B7/1362 ,  G11B7/1384 ,  G11B7/14

    摘要： A method of reading data from an optical disk comprises providing means for illuminating the required part of the disk and acquiring the optical image of a plurality of tracks, providing a detector matrix comprising a plurality of detectors, each of the detectors being capable of producing an output signal which is proportional to the intensity of the light detected by it causing an optical image corresponding to an illuminated area to fall on the detector matrix, transferring the output signal of the detector matrix to image processing means, determining position coordinates of the track center for each data track, by analyzing the output signal of the detector matrix, saving in memory means expected track center data, comprising position coordinates of the track center located by the analysis of the output signal, and if an actually detected track center is shifted with respect to the expected track center, electronically moving the track center position.

    摘要翻译： 从光盘读取数据的方法包括：提供用于照亮盘的所需部分并获取多个轨道的光学图像的装置，提供包括多个检测器的检测器矩阵，每个检测器能够产生 输出信号，其与由其检测到的光的强度成比例，使得与照明区域相对应的光学图像落在检测器矩阵上，将检测器矩阵的输出信号传送到图像处理装置，确定轨道中心的位置坐标 对于每个数据轨道，通过分析检测器矩阵的输出信号，保存存储器意味着期望的轨道中心数据，包括通过分析输出信号定位的轨道中心的位置坐标，以及如果实际检测到的轨道中心与 相对于预期的轨道中心，电子地移动轨道中心的位置。