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18 条记录 (耗时 0.018 秒)

    Optic read unit for scanning a record carrier having a radiation-reflecting information structure
    4.
    发明授权
    Optic read unit for scanning a record carrier having a radiation-reflecting information structure 失效
    用于扫描具有辐射反射信息结构的记录载体的光学读取单元

    公开(公告)号：US4365323A

    公开(公告)日：1982-12-21

    申请号：US130906

    申请日：1980-03-17

    申请人： Jacobus P. J. Heemskerk ,  Kornelis A. Immink ,  Carel A. J. Simons

    发明人： Jacobus P. J. Heemskerk ,  Kornelis A. Immink ,  Carel A. J. Simons

    IPC分类号： G11B7/095 ,  G02B27/00 ,  G11B7/09 ,  G11B7/12 ,  H01S5/024 ,  H01S5/062 ,  H04N5/85 ,  G11B7/00

    CPC分类号： H01S5/005 ,  G11B7/09 ,  G11B7/12 ,  H01S5/06243

    摘要： An optical read unit is described for scanning a record carrier with a radiation-reflecting trackwise-arranged information structure. The read unit utilizes a diode laser which generates the read beam and also detects the information stored on the record carrier. The read unit is also provided with an opto-electronic system for detecting the position of the read spot relative to a track to be read and the position of the plane of focussing. The diode is mounted in a housing and the unit includes electromechanical apparatus for moving the housing in two perpendicular directions so as to correct the position of the read spot. The objective system for the formation of the read spot is of simple construction.

    摘要翻译： 描述了一种光学读取单元，用于扫描具有辐射反射的跟踪布置的信息结构的记录载体。 读取单元利用二极管激光器产生读取光束并且还检测存储在记录载体上的信息。 读取单元还设置有用于检测读取点相对于待读取的轨迹的位置和聚焦平面的位置的光电系统。 二极管安装在壳体中，该单元包括用于沿两个垂直方向移动壳体的机电装置，以校正读取点的位置。 形成读取点的客观系统结构简单。

    Optical focussing-error detection system
    5.
    发明授权
    Optical focussing-error detection system 失效
    光学聚焦误差检测系统

    公开(公告)号：US4358200A

    公开(公告)日：1982-11-09

    申请号：US109732

    申请日：1980-01-04

    申请人： Jacobus P. J. Heemskerk ,  Hendrik Renes ,  Carel A. J. Simons

    发明人： Jacobus P. J. Heemskerk ,  Hendrik Renes ,  Carel A. J. Simons

    IPC分类号： G02B7/28 ,  G11B7/09 ,  G01J1/36

    CPC分类号： G11B7/0909

    摘要： A focussing error detection system is described for determining deviations between the plane of imaging of an objective system in an optical arrangement and the radiation-reflecting surface in said system. The apparatus comprises an optical element by means of which a radiation beam coming from the radiation reflecting surface is both rendered astigmatic and separated from a radiation beam which is directed to the radiation-reflecting surface. By the use of this element the number of components of the focussing-error detection system can be minimized and a compact construction of said system can be obtained.

    摘要翻译： 描述了一种用于确定光学装置中的物镜系统的成像平面与所述系统中的辐射反射表面之间的偏差的聚焦误差检测系统。 该装置包括光学元件，通过该光学元件来自辐射反射表面的辐射束二者都被散射并与被引导到辐射反射表面的辐射束分离。 通过使用该元件，聚焦误差检测系统的部件数量可以最小化，并且可以获得所述系统的紧凑结构。

    Method of registering a running time on an information carrier, information carrier and apparatus
    6.
    发明授权
    Method of registering a running time on an information carrier, information carrier and apparatus 失效
    在信息载体，信息载体和装置上登记运行时间的方法

    公开(公告)号：US06577574B1

    公开(公告)日：2003-06-10

    申请号：US09533491

    申请日：2000-03-23

    申请人： Jacobus P. J. Heemskerk ,  Jakob G. Nijboer ,  Joost J. J. Bekkers

    发明人： Jacobus P. J. Heemskerk ,  Jakob G. Nijboer ,  Joost J. J. Bekkers

    IPC分类号： G11B700

    CPC分类号： G11B27/3036 ,  G11B27/3063

    摘要： Running time is registered on an information carrier that includes main data and subcode data. The running time is indicated in a subcode channel by a subcode time expressed in accordance with a predetermined format. A pseudo-running time is described by incrementing the subcode time in accordance with a pseudo-tempo, which is different from an actual tempo, the actual tempo representing a tempo in accordance with the actual running time.

    摘要翻译： 在包含主数据和子代码数据的信息载体上登记运行时间。 运行时间在子代码信道中以按照预定格式表示的子代码时间表示。 通过根据与实际速度不同的伪速度，根据实际运行时间表示速度的实际速度来增加子代码时间来描述伪运行时间。

    Optical record carrier and apparatus for reading it
    8.
    发明授权
    Optical record carrier and apparatus for reading it 失效
    光学记录载体和读取装置

    公开(公告)号：US4325135A

    公开(公告)日：1982-04-13

    申请号：US87276

    申请日：1979-10-22

    申请人： Jan G. Dil ,  Jacobus P. J. Heemskerk

    发明人： Jan G. Dil ,  Jacobus P. J. Heemskerk

    IPC分类号： G11B7/00 ,  G11B7/005 ,  G11B7/007 ,  G11B7/013 ,  G11B7/09 ,  G11B7/12 ,  G11B7/24

    CPC分类号： G11B7/24085 ,  G11B7/007 ,  G11B7/013 ,  G11B7/0901 ,  G11B7/12

    摘要： A record carrier is disclosed having an optically readable information structure comprising trackwise arranged information areas, as well as an apparatus for reading said record carrier. By using two mutually perpendicularly polarized beams components for reading and by giving the information areas of adjacent track portions a different geometries such that areas of one geometry can be read in an optimum manner by only one of the beam components and is virtually not observed by the other beam component, the track distance can be reduced without increasing the crosstalk, so that the information content of the record carrier is increased.

    摘要翻译： 公开了一种具有光学可读信息结构的记录载体，该信息结构包括跟踪地布置的信息区域，以及用于读取所述记录载体的装置。 通过使用两个相互垂直的偏振光束分量进行读取，并通过给予相邻轨道部分的信息区域不同的几何形状，使得一个几何形状的区域能够以最佳方式仅通过一个光束分量来读取，并且实际上不被观察到 其他波束分量，可以减小轨道距离而不增加串扰，从而增加记录载体的信息内容。

    Method of preventing recording on a disc like recording medium of the optically rewritable type
    9.
    发明授权
    Method of preventing recording on a disc like recording medium of the optically rewritable type 有权
    防止在光盘可重写类型的盘状记录介质上记录的方法

    公开(公告)号：US06704263B1

    公开(公告)日：2004-03-09

    申请号：US09685553

    申请日：2000-10-10

    申请人： Jakob G. Nijboer ,  Jacobus P. J. Heemskerk

    发明人： Jakob G. Nijboer ,  Jacobus P. J. Heemskerk

    IPC分类号： G11B700

    CPC分类号： G11B27/24 ,  G11B7/0037 ,  G11B19/04 ,  G11B19/12 ,  G11B27/19 ,  G11B27/3027 ,  G11B27/329 ,  G11B27/36 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2545 ,  G11B2220/2562 ,  G11B2220/2575

    摘要： A next generation of high speed CD-RW discs for high speed recording (4×-10×) need a new write strategy, which is not suited for recording at lower speeds (1×4×). Existing CD-RW recorders may accept these discs and make recordings according to existing write strategies. This will result in unreadable discs. To prevent this, a Power Calibration Area (PCA) and a Program Memory Area (PMA), both needed for recording, are hidden for the existing recorders. As a result the disc will be rejected. In a method wherein an absolute time reference (ATIP) is applied on the disc, the start locations of said areas being determined by a fixed time offset relative to a subsequent Lead-in area, an embodiment of the invention is obtained by making the PCA and PMA untraceable by introducing and Absolute Time in Pre-Groove (ATIP) time code jump of for instance one minute just before the Start time of the Lead-in area. Another embodiment is obtained by introducing the absolute Time in Pre-Groove (ATIP) time code jumps between a Test Area and a Count Area of the program calibration area (PCA).

    摘要翻译： 下一代用于高速记录（4x-10x）的高速CD-RW光盘需要新的写入策略，这不适合以较低的速度（1x4x）进行记录。 现有的CD-RW刻录机可以接受这些光盘，并根据现有的写入策略进行录制。 这将导致无法读取的光盘。 为了防止这种情况，对于现有的录像机，都需要为记录所需的功率校准区（PCA）和程序存储区（PMA）。 因此，光盘将被拒绝。 在绝对时间基准（ATIP）应用在盘上的方法中，所述区域的起始位置由相对于随后的导入区域的固定时间偏移量确定，本发明的一个实施例是通过使PCA 并且PMA通过引入Pre-Groove中的绝对时间（ATIP）时间码跳跃，例如在导入区的开始时间之前的一分钟，这是不可追踪的。 通过在测试区域和程序校准区域（PCA）的计数区域之间引入预槽中的绝对时间（ATIP）时间码跳跃来获得另一实施例。