利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

17 条记录 (耗时 0.03 秒)

    Method and device for adding or extracting a secondary information signal to/from a RLL code sequence
    1.
    发明授权
    Method and device for adding or extracting a secondary information signal to/from a RLL code sequence 失效
    用于向/从RLL码序列添加或提取辅助信息信号的方法和装置

    公开(公告)号：US07038600B2

    公开(公告)日：2006-05-02

    申请号：US09929265

    申请日：2001-08-14

    申请人： Willem Marie Julia Marcel Coene ,  Johan Cornelis Talstra ,  Antonius Adriaan Maria Staring ,  Jacobus Petrus Josephus Heemskerk

    发明人： Willem Marie Julia Marcel Coene ,  Johan Cornelis Talstra ,  Antonius Adriaan Maria Staring ,  Jacobus Petrus Josephus Heemskerk

    IPC分类号： H03M7/00 ,  G06Q99/00 ,  H04K1/00 ,  H04L9/00

    CPC分类号： H03M5/145 ,  G11B20/00086 ,  G11B20/00579 ,  G11B20/0063 ,  G11B20/1426 ,  G11B2020/1461 ,  G11B2020/1469 ,  H03M5/14 ,  H03M7/46

    摘要： A method and device for adding or extracting a secondary information signal to/from a runlength-limited code sequence, includes detecting a polarity of a runlength at a first predetermined position of the runlength-limited code sequence and setting a parameter reflecting the degree of freedom that is present in the runlength-limited channel code, e.g., the selection of a merging bit pattern in the CD-standard, on the basis of the detected polarity so as to obtain a predetermined polarity of a runlength at a subsequent second predetermined position of the runlength-limited code sequence. The predetermined polarity then corresponds to a binary value of the secondary information. Thus, a side-channel with a small capacity is provided, which is positioned very close to the physical channel such that the secondary information is hard to be detected from the EFM bit stream. Therefore, the side-channel can be used as a hidden channel for copy protection purposes.

    摘要翻译： 一种用于向游程长度限制代码序列添加或提取辅助信息信号的方法和装置，包括检测游程受限码序列的第一预定位置处的游程长度的极性，并设置反映自由度的参数 存在于游程长度限制信道码中，例如，基于检测到的极性来选择CD标准中的合并位模式，以便获得在随后的第二预定位置处的游程长度的预定极性 运行长度限制代码序列。 预定的极性然后对应于辅助信息的二进制值。 因此，提供了具有小容量的侧信道，其被定位成非常接近物理信道，使得从EFM比特流难以检测到辅助信息。 因此，侧信道可以用作隐藏通道，用于复制保护。

    Information carrier comprising access information
    2.
    发明授权
    Information carrier comprising access information 有权
    信息载体包括访问信息

    公开(公告)号：US08718277B2

    公开(公告)日：2014-05-06

    申请号：US10545640

    申请日：2004-02-05

    申请人： Aalbert Stek ,  Martinus Wilhelmus Blum ,  Bart Van Rompaey ,  Jacobus Petrus Josephus Heemskerk

    发明人： Aalbert Stek ,  Martinus Wilhelmus Blum ,  Bart Van Rompaey ,  Jacobus Petrus Josephus Heemskerk

    IPC分类号： H04K1/10

    CPC分类号： G11B20/0021 ,  G11B20/00086 ,  G11B20/00304 ,  G11B20/00405 ,  G11B20/00579 ,  G11B20/00586 ,  G11B2020/1288 ,  G11B2220/2541

    摘要： An information carrier for holding user information, the information carrier comprising access information in the form of access information bits for accessing the user information, the access information bits being stored on the information carrier in a variation of a parameter, which variation is detectable by integration detection. The access information bits are scrambled according to a pre-determined scrambling method. By scrambling the access information bits according to a pre-determined scrambling method, detection of the access information is not possible as long as the scrambling method is not known. Using the integration detection technique, the only way to obtain the access information is by knowing how the signal obtained after reading-out the area comprising the access information bits must be processed. In this way illegal retrieval of the user information is further prevented.

    摘要翻译： 一种用于保存用户信息的信息载体，所述信息载体包括用于访问用户信息的访问信息位形式的访问信息，访问信息位存储在信息载体上的参数变化中，所述变化可通过集成检测 检测。 访问信息比特根据预定的加扰方法进行加扰。 通过根据预定的加扰方法对访问信息比特进行加扰，只要加扰方法是未知的，则访问信息的检测是不可能的。 使用积分检测技术，获得访问信息的唯一方法是知道如何在读出包含访问信息位的区域之后获得的信号如何被处理。 以这种方式进一步防止用户信息的非法检索。

    System and Method for Embedding Optical Drive Compatibility Information In Optical Media
    3.
    发明申请
    System and Method for Embedding Optical Drive Compatibility Information In Optical Media 有权
    在光学媒体中嵌入光驱兼容性信息的系统和方法

    公开(公告)号：US20110103213A1

    公开(公告)日：2011-05-05

    申请号：US12986844

    申请日：2011-01-07

    申请人： Dirk Erickson ,  Robert A. Brondijk ,  Jacobus Petrus Josephus Heemskerk ,  Jakob G. Nijboer ,  Christiaan Steenbergen ,  Charles R. Weirauch

    发明人： Dirk Erickson ,  Robert A. Brondijk ,  Jacobus Petrus Josephus Heemskerk ,  Jakob G. Nijboer ,  Christiaan Steenbergen ,  Charles R. Weirauch

    IPC分类号： G11B7/00 ,  G11B7/24

    CPC分类号： G11B19/122 ,  G11B7/00736 ,  G11B20/1252 ,  G11B2007/0006

    摘要： Compatibility information embedded in an optical medium modifies actions allowed by predetermined non-compatible optical disc drives on the optical medium, such as optical disc drives that may suffer damage if certain actions are performed on the optical medium. For instance, a compatibility engine of the optical disc drive applies compatibility information read from an optical medium to determine restrictions to impose on the use of the optical medium, such as restricting the optical disc drive from writing to the optical medium, reading from the optical medium or performing any operations until an update to the optical disc drive firmware is performed either automatically or by display of a compatibility user interface at an information handling system associated with the optical disc drive. In one embodiment, the compatibility information identifies incompatible optical disc drives and firmware versions by unique identifiers.

    摘要翻译： 嵌入在光学介质中的兼容性信息修改光介质上的预定不兼容的光盘驱动器所允许的动作，例如在光学介质上执行某些动作时可能遭受损坏的光盘驱动器。 例如，光盘驱动器的兼容性引擎应用从光学介质读取的兼容性信息来确定对光学介质的使用施加的限制，例如限制光盘驱动器对光学介质的写入，从光学读取 介质或执行任何操作，直到对与光盘驱动器相关联的信息处理系统自动执行或者通过显示兼容性用户界面来执行对光盘驱动器固件的更新。 在一个实施例中，兼容性信息通过唯一标识符识别不兼容的光盘驱动器和固件版本。

    Optical recording medium having first and second wobble patterns
    6.
    发明授权
    Optical recording medium having first and second wobble patterns 失效
    具有第一和第二摆动图案的光学记录介质

    公开(公告)号：US07656780B2

    公开(公告)日：2010-02-02

    申请号：US11898441

    申请日：2007-09-12

    申请人： Jacobus Petrus Josephus Heemskerk ,  Cornelis Marinus Schep ,  Aalbert Stek ,  Hiromichi Ishibashi ,  Shigeru Furumiya ,  Shoei Kobayashi ,  Jun Nakano

    发明人： Jacobus Petrus Josephus Heemskerk ,  Cornelis Marinus Schep ,  Aalbert Stek ,  Hiromichi Ishibashi ,  Shigeru Furumiya ,  Shoei Kobayashi ,  Jun Nakano

    IPC分类号： G11B7/24

    CPC分类号： G11B7/00736 ,  G11B7/007 ,  G11B7/24082

    摘要： An optical disc medium 10 having a wobbled track groove 12 includes three wobble patterns including a flat wobble pattern, a positive pulse wobble pattern, and a negative pulse wobble pattern. In the flat wobble pattern, the amplitude of the wobble from the lengthwise direction of the track groove is zero such that the track groove is flat. In the positive pulse wobble pattern, the amplitude of the wobble from the lengthwise direction of the track groove is positive such that the track groove is wobbled in a first direction perpendicular to the lengthwise direction. Further, in the negative pulse wobble pattern, the amplitude of the wobble from the lengthwise direction of the track groove is negative such that the track groove is wobbled in a second direction opposite to the first direction. Then, three data values can be recorded using three distinctive wobble patterns.

    摘要翻译： 具有摆动轨道槽12的光盘介质10包括三个摆动图案，包括平摆动图案，正脉冲摆动图案和负脉冲摆动图案。 在平坦摆动图案中，轨道槽的纵向的摆动幅度为零，使得轨道槽平坦。 在正脉冲摆动图案中，从轨道槽的长度方向摆动的振幅为正，使得轨道槽在与长度方向垂直的第一方向上摆动。 此外，在负脉冲摆动图案中，从轨道槽的长度方向的摆动的振幅为负，使得轨道槽在与第一方向相反的第二方向上摆动。 然后，可以使用三种不同的摆动模式记录三个数据值。

    Optical recording medium capable of recording three data values
    9.
    发明授权
    Optical recording medium capable of recording three data values 失效
    能够记录三个数据值的光学记录介质

    公开(公告)号：US07388826B2

    公开(公告)日：2008-06-17

    申请号：US10487600

    申请日：2002-10-18

    申请人： Jacobus Petrus Josephus Heemskerk ,  Cornelis Marinus Schep ,  Aalbert Stek ,  Hiromichi Ishibashi ,  Shigeru Furumiya ,  Shoei Kobayashi ,  Jun Nakano

    发明人： Jacobus Petrus Josephus Heemskerk ,  Cornelis Marinus Schep ,  Aalbert Stek ,  Hiromichi Ishibashi ,  Shigeru Furumiya ,  Shoei Kobayashi ,  Jun Nakano

    IPC分类号： G11B7/24

    CPC分类号： G11B7/00736 ,  G11B7/007 ,  G11B7/24082

    摘要： An optical disc medium 10 having a wobbled track groove 12 includes three wobble patterns including a flat wobble pattern, a positive pulse wobble pattern, and a negative pulse wobble pattern. In the flat wobble pattern, the amplitude of the wobble from the lengthwise direction of the track groove is zero such that the track groove is flat. In the positive pulse wobble pattern, the amplitude of the wobble from the length-wise direction of the track groove is positive such that the track groove is wobbled in a first direction perpendicular to the length-wise direction. Further, in the negative pulse wobble pattern, the amplitude of the wobble from the lengthwise direction of the track groove is negative such that the track groove is wobbled in a second direction opposite to the first direction. Then, three data values can be recorded using three distinctive wobble patterns.

    摘要翻译： 具有摆动轨道槽12的光盘介质10包括三个摆动图案，包括平摆动图案，正脉冲摆动图案和负脉冲摆动图案。 在平坦摆动图案中，轨道槽的纵向的摆动幅度为零，使得轨道槽平坦。 在正脉冲摆动图案中，从轨道槽的长度方向的摆动的振幅为正，使得轨道槽在与长度方向垂直的第一方向上摆动。 此外，在负脉冲摆动图案中，从轨道槽的长度方向的摆动的振幅为负，使得轨道槽在与第一方向相反的第二方向上摆动。 然后，可以使用三种不同的摆动模式记录三个数据值。