利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

23 条记录 (耗时 0.025 秒)

    Record carrier with a servo track having wobble with reduced cross-talk and an apparatus for scanning the record carrier
    3.
    发明申请
    Record carrier with a servo track having wobble with reduced cross-talk and an apparatus for scanning the record carrier 有权

    公开(公告)号：US20060256705A1

    公开(公告)日：2006-11-16

    申请号：US11489171

    申请日：2006-07-19

    申请人： Cornelis Schep

    发明人： Cornelis Schep

    IPC分类号： G11B7/24

    CPC分类号： G11B7/24082 ,  G11B7/0053 ,  G11B20/10

    摘要： A record carrier (1) has a servo track (4) indicating an information track (9) intended for recording information blocks represented by marks, this servo track (4) having a periodic variation of a physical parameter. Due to cross-talk, there exists a variation in the wobble signal called wobble beat. The track pitch t and the wobble period p, p being the length of a wobble period, are chosen in such a way that 2πt/p≈n+½ where n is integer. The choice results in a reduced wobble beat. A recording and/or playback device has apparatus for recording/reading the information blocks and for generating a wobble signal.

    Optical disc medium, data recording method, and data recording apparatus
    5.
    发明申请
    Optical disc medium, data recording method, and data recording apparatus 失效
    光盘介质，数据记录方法和数据记录装置

    公开(公告)号：US20080074988A1

    公开(公告)日：2008-03-27

    申请号：US11898441

    申请日：2007-09-12

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

    发明人： Jacobus Heemskerk ,  Cornelis 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。

    Method of storing rll encoded information to an optical disc with control of the frequency of the information with respect to the cut-off frequency of the optical system
    6.
    发明申请
    Method of storing rll encoded information to an optical disc with control of the frequency of the information with respect to the cut-off frequency of the optical system 审中-公开
    通过控制关于光学系统的截止频率的信息的频率来将rll编码信息存储到光盘的方法

    公开(公告)号：US20070030786A1

    公开(公告)日：2007-02-08

    申请号：US10557640

    申请日：2004-05-13

    申请人： Theodorus Petrus Jansen ,  Cornelis Schep ,  Aalbert Stek

    发明人： Theodorus Petrus Jansen ,  Cornelis Schep ,  Aalbert Stek

    IPC分类号： G11B27/30

    CPC分类号： G11B20/1426

    摘要： A method of storing/retrieving information to/from an optical disc by means of an optical system with a cut-off frequency νcut-off, above which frequencies cannot be detected, is disclosed. The invention relates to Run Length Limited encoded information. According to the invention, some frequencies of the encoded information can be higher than cut-off frequency of the optical system, such that the equation 4*(d+1)*Lcd*NA/λlaser

    摘要翻译： 公开了一种通过具有截止频率nu截止的光学系统来存储/从光盘获取信息的方法，其中不能检测到频率。 本发明涉及运行长度有限的编码信息。 根据本发明，编码信息的一些频率可以高于光学系统的截止频率，使得等式4 *（d + 1）* L＆lt; * NA / SUB>激光<1>，其中d + 1是编码的最小游程长度，L cd是通道位的长度，NA是数值孔径，λ< SUB>激光是光学系统的波长。 因此，使用了普遍的编码技术，光盘的容量增加。 此外，本发明涉及用于存储数据的盘，能够存储数据的驱动器和用于制造光盘的装置。

    Method for processing a wobble signal
    7.
    发明申请
    Method for processing a wobble signal 失效
    摆动信号处理方法

    公开(公告)号：US20050270967A1

    公开(公告)日：2005-12-08

    申请号：US10527894

    申请日：2003-09-05

    申请人： Bin Yin ,  Cornelis Schep ,  Aalbert Stek ,  Alexander Padiy ,  Theodorus Petrus Jansen ,  Mohammed Meftah

    发明人： Bin Yin ,  Cornelis Schep ,  Aalbert Stek ,  Alexander Padiy ,  Theodorus Petrus Jansen ,  Mohammed Meftah

    IPC分类号： G11B7/005 ,  G11B7/09 ,  G11B20/10 ,  G11B20/14 ,  G11B20/22 ,  G11B15/64 ,  G11B17/32

    CPC分类号： G11B20/10009 ,  G11B7/0053 ,  G11B20/14 ,  G11B20/22 ,  G11B2020/1288 ,  G11B2220/2541

    摘要： A wobble signal is generated from at least two elementary signals (A,B,C,D) detected by scanning a wobbled track of a data carrier. The invention proposes a solution for eliminating the noise of various origins in the wobble signal, notably the high frequency data leakage into the wobble signal due to radial asymmetry introduced in the diffraction pattern on the detector, whatever the reason for this radial asymmetry. According to the invention, the at least two elementary signals are filtered with at least an adaptive filter (40), and said filtered elementary signals are subtracted (44) from said wobble signal (PP) thereby generating an improved wobble signal.

    摘要翻译： 从通过扫描数据载体的摆动轨道检测到的至少两个基本信号（A，B，C，D）产生摆动信号。 本发明提出了一种用于消除摆动信号中各种起因的噪声的解决方案，特别是由于在检测器上的衍射图案中引入的径向不对称性而导致的摆动信号中的高频数据泄漏，无论这种径向不对称的原因如何。 根据本发明，用至少一个自适应滤波器（40）对至少两个基本信号进行滤波，并且从所述摆动信号（PP）中减去所述滤波的基本信号（44），从而产生改善的摆动信号。

    Method of encoding and decoding
    8.
    发明申请
    Method of encoding and decoding 有权
    编码和解码方法

    公开(公告)号：US20050034047A1

    公开(公告)日：2005-02-10

    申请号：US10501824

    申请日：2002-12-12

    申请人： Aalbert Stek ,  Cornelis Schep ,  Martinus Blum

    发明人： Aalbert Stek ,  Cornelis Schep ,  Martinus Blum

    IPC分类号： G06F11/10 ,  G11B20/14 ,  G11B20/18 ,  H03M13/09 ,  H03M13/15 ,  H03M13/00

    CPC分类号： H03M13/616 ,  G06F11/10 ,  G11B20/1833 ,  H03M13/1515 ,  H03M13/2942 ,  H03M13/3761 ,  H03M13/63 ,  H03M13/6516

    摘要： The invention relates to a method of encoding user data into codevectors and to a corresponding method of decoding codevectors into user data. In order to be able to use the same ECC decoder for decoding of more than one type of data a method of encoding is proposed comprising the steps of: a) generating a first block of a fixed first number of data symbols by taking a fixed second number, being smaller than said first number, of user data symbols, and a fixed third number of dummy data symbols, and by arranging said user data symbols and said dummy data symbols in a predetermined order, b) encoding said first block of data symbols using an ECC encoder (2) to obtain a codeword having a fixed number of symbols, said codeword comprising said first block of data symbols and a second block of a fixed forth number of parity symbols, and (c) generating a codevector by selecting a fifth predetermined number of user data symbols and a sixth predetermined number of parity symbols from said codeword, the sum of said fifth and sixth number being predetermined and smaller than the sum of said second and forth number.

    摘要翻译： 本发明涉及一种将用户数据编码为码向量的方法以及将码向量解码为用户数据的对应方法。 为了能够使用相同的ECC解码器来解码多于一种类型的数据，提出了一种编码方法，包括以下步骤：a）通过采取固定的第二数据符号来产生固定的第一数量的数据符号的第一块 数字，小于所述第一数量的用户数据符号，以及固定的第三数量的虚拟数据符号，并且以预定顺序布置所述用户数据符号和所述虚拟数据符号，b）编码所述第一数据符号块 使用ECC编码器（2）来获得具有固定数目的符号的码字，所述码字包括所述第一数据符号块和固定的第三数量的奇偶校验符号的第二块，以及（c）通过选择一个 第五预定数量的用户数据符号和来自所述码字的第六预定数量的奇偶校验符号，所述第五和第六数字的和是预定的并且小于所述第二和第四数的和。

    Method and apparatus for rapidly accessing a physical position on an optical disc
    9.
    发明申请
    Method and apparatus for rapidly accessing a physical position on an optical disc 审中-公开
    用于快速访问光盘上的物理位置的方法和装置

    公开(公告)号：US20050018580A1

    公开(公告)日：2005-01-27

    申请号：US10495822

    申请日：2002-10-24

    申请人： Cornelis Schep

    发明人： Cornelis Schep

    IPC分类号： G11B7/007 ,  G11B20/12 ,  G11B27/19 ,  G11B27/24 ,  G11B27/30 ,  G11B7/085 ,  G11B5/09

    CPC分类号： G11B27/3027 ,  G11B7/007 ,  G11B7/00745 ,  G11B20/1258 ,  G11B27/24 ,  G11B2020/1222 ,  G11B2020/1287 ,  G11B2020/1294 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2537 ,  G11B2220/2545 ,  G11B2220/2562

    摘要： A method for manufacturing a record carrier and a record carrier comprising an optical disc having a lead-in portion storing information being indicative that a fixed relation is provided between the physical address of each error correction code (ECC) block and the corresponding position of each ECC block on the disc. Provides the possibility of fast access to the ECC blocks on the disc for recording and/or reading of data. May easily be applied to existing groove-only formats, such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, DVD+R, DVD-RW, DVD+RW, and is therefore ‘backward compatible’. Furthermore, a device for recording and/or reading data on/from a record carrier. Is capable of reading the information in the lead-in portion and act accordingly, i.e. fast access if it is possible and normal access if not.

    摘要翻译： 一种用于制造记录载体和记录载体的方法，包括具有存储信息的导入部分的光盘，该信息指示在每个纠错码（ECC）块的物理地址和每个纠错码（ECC）块的对应位置之间提供固定关系 ECC块在光盘上。 提供快速访问光盘上的ECC块以记录和/或读取数据的可能性。 可以很容易地应用于现有的只有凹槽的格式，如CD-ROM，CD-R，CD-RW，DVD-ROM，DVD-R，DVD + R，DVD-RW，DVD + RW， 兼容'。 此外，用于在/从记录载体上记录和/或读取数据的装置。 能够读取导入部分中的信息并相应地进行操作，即，如果可能，则快速访问，如果不可行，则能够正常访问。

    Record carrier with protective linking areas
    10.
    发明申请
    Record carrier with protective linking areas 审中-公开
    记录载体与保护连接区域

    公开(公告)号：US20060101188A1

    公开(公告)日：2006-05-11

    申请号：US10540699

    申请日：2003-12-17

    申请人： Josephus Arnoldus Kahlman ,  Cornelis Schep

    发明人： Josephus Arnoldus Kahlman ,  Cornelis Schep

    IPC分类号： G06F3/06

    CPC分类号： G11B20/00086

    摘要： The invention relates to a record carrier intended to store data. According to the invention, data are intended to be stored in accordance with a standard for creating physical data clusters separated by protective linking areas, said protective linking areas being of different size from linking areas of a writable record carrier intended to store said physical data clusters locked to a pre-recorded wobbled groove in which linking areas are used. The invention serves to prevent bit-by-bit copying of said record carrier onto said writable record carrier. The invention can also serve to control the compatibility of different standards of writable record carrier. Application: Optical storage.

    摘要翻译： 本发明涉及一种旨在存储数据的记录载体。 根据本发明，数据旨在根据用于创建由保护性链接区域分隔的物理数据簇的标准来存储，所述保护性链接区域与用于存储所述物理数据簇的可写入载体的链接区域不同 锁定到使用连接区域的预先记录的摆动槽。 本发明用于防止将所述记录载体逐位复制到所述可写入记录载体上。 本发明还可以用于控制不同标准的可写记录载体的兼容性。 应用：光存储。