利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

1051 条记录 (耗时 0.027 秒)

    Optical disc and optical disc device
    1.
    发明授权
    Optical disc and optical disc device 有权

    公开(公告)号：US10650855B2

    公开(公告)日：2020-05-12

    申请号：US16456888

    申请日：2019-06-28

    申请人： Mitsubishi Electric Corporation

    发明人： Hironori Nakahara ,  Nobuo Takeshita ,  Masaharu Ogawa

    IPC分类号： G11B7/24 ,  G11B7/00 ,  G11B7/2403 ,  G11B7/007 ,  G11B7/24041 ,  G11B7/1392 ,  G11B7/13 ,  G11B7/24038 ,  G11B7/013 ,  G11B20/12 ,  G11B7/127 ,  G11B7/135 ,  G11B7/085

    摘要： In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.

    Optical disc with copy protection file system format and method of making such disc
    7.
    发明授权
    Optical disc with copy protection file system format and method of making such disc 有权
    具有复制保护文件系统格式的光盘和制造这种光盘的方法

    公开(公告)号：US09502067B1

    公开(公告)日：2016-11-22

    申请号：US15134666

    申请日：2016-04-21

    申请人： Shuo Wei Chang ,  Liao-Hsuan Kuo ,  Chun-Sung Wu

    发明人： Shuo Wei Chang ,  Liao-Hsuan Kuo ,  Chun-Sung Wu

    IPC分类号： G11B11/00 ,  G11B7/013 ,  G11B7/007

    CPC分类号： G11B20/00615 ,  G11B20/00086 ,  G11B20/00572 ,  G11B20/1217

    摘要： The present invention provides an improved file system format for an optical disc to help prevent illegal copying of multimedia content, where certain non-readable data record is placed into increased measured length of a multimedia data block; disc made pursuant to present format allows normal playback with very low level noise that would not affect the user enjoyment of viewing/listening the movie or music content on the multimedia disc.

    摘要翻译： 本发明提供了一种用于光盘的改进的文件系统格式，以帮助防止多媒体内容的非法复制，其中某些不可读数据记录放置在多媒体数据块的增加的测量长度中; 根据本格式制作的光盘允许具有非常低级别噪声的正常回放，这不会影响用户享受在多媒体盘上观看/收听电影或音乐内容。

    OPTICAL RECORDING MEDIUM AND OPTICAL INFORMATION PLAYBACK METHOD
    8.
    发明申请
    OPTICAL RECORDING MEDIUM AND OPTICAL INFORMATION PLAYBACK METHOD 有权
    光学记录介质和光信息回放方法

    公开(公告)号：US20150302883A1

    公开(公告)日：2015-10-22

    申请号：US14403460

    申请日：2012-05-28

    申请人： Takao WATANABE ,  Manabu SHIOZAWA ,  Koichi WATANABE ,  Shigeharu KIMURA

    发明人： Takao WATANABE ,  Manabu SHIOZAWA ,  Koichi WATANABE ,  Shigeharu KIMURA

    IPC分类号： G11B7/013 ,  G11B7/005

    CPC分类号： G11B7/013 ,  G11B7/005 ,  G11B2007/0009 ,  G11B2007/0013

    摘要： When a simple magnification optical system is used in reproduction of a recording medium in which a large number of minute modified regions are three-dimensionally formed inside solid matter, contrast is insufficient and interlayer crosstalk is increased, and therefore, it is impossible to take a sufficient S/N ratio. Provided is a recording medium in which at least one layer is configured by a set of two adjacent sub-layers, and dots on a sub-layer correspond to a recording data ‘1’ and dots on the other sub-layer correspond to ‘0’. These data are played back.

    摘要翻译： 当简单放大光学系统用于在固体物质内三维地形成大量微小修改区域的记录介质的再现时，对比度不足，层间串扰增加，因此不可能 充足的S / N比。 提供了一种记录介质，其中由一组两个相邻的子层构成至少一个层，子层上的点对应于记录数据'1'，另一个子层上的点对应于'0 '。 播放这些数据。

    OPTICAL INFORMATION RECORDING MEDIUM
    9.
    发明申请
    OPTICAL INFORMATION RECORDING MEDIUM 有权
    光信息记录介质

    公开(公告)号：US20150055445A1

    公开(公告)日：2015-02-26

    申请号：US14533378

    申请日：2014-11-05

    申请人： Sharp Kabushiki Kaisha ,  Memory-Tech Corporation

    发明人： Hideharu TAJIMA ,  Go MORI ,  Yasuhiro HARADA ,  Masaki YAMAMOTO ,  Hirohisa YAMADA ,  Masahito KONISHI

    IPC分类号： G11B7/013 ,  G11B7/24038

    CPC分类号： G11B7/005 ,  G11B7/00745 ,  G11B7/013 ,  G11B7/24038 ,  G11B7/24085 ,  G11B7/24088 ,  G11B7/261 ,  G11B20/1012 ,  G11B2007/0013 ,  G11B2007/0133

    摘要： An optical information recording medium has a first information recording layer (20) and a second information recording layer (40) each of which includes (i) a group of pre-pits (31, 51) constituting marks (32, 52) and spaces (33, 53) and (ii) a super-resolution film (23, 43), the marks (32, 52) and the spaces (33, 53) having different lengths, an average length of a smallest mark that is smallest in length and a smallest space that is smallest in length being less than or equal to a resolution limit of a reproduction optical system for reproducing information recorded on the first information recording layer (20) and the second information recording layer (40), the group of pre-pits (31, 51) being formed so that a push-pull signal for the reproduction optical system to reproduce the information recorded by the group of pre-pits is negative in polarity. This provides an inexpensive and high-capacity multilayer optical information recording medium based on a super-resolution technology.

    摘要翻译： 光信息记录介质具有第一信息记录层（20）和第二信息记录层（40），每个信息记录层包括：（i）一组构成标记（32,52）的预凹坑（31,51）和空间 （33,53）和（ii）超分辨率胶片（23,43），所述标记（32,52）和所述空间（33,53）具有不同的长度，最小标记的平均长度在 长度和长度最小的最小空间小于或等于用于再现记录在第一信息记录层（20）和第二信息记录层（40）上的信息的再现光学系统的分辨率限制，该组 形成预凹坑（31,51），使得用于再现光学系统的推挽信号再现由该凹坑组记录的信息的极性是负的。 这提供了基于超分辨率技术的便宜且大容量的多层光学信息记录介质。

    Method for formatting and reading data disks
    10.
    发明授权
    Method for formatting and reading data disks 有权
    格式化和读取数据磁盘的方法

    公开(公告)号：US08891343B2

    公开(公告)日：2014-11-18

    申请号：US12337457

    申请日：2008-12-17

    申请人： John Anderson Fergus Ross ,  Kenneth Brakeley Welles ,  John Erik Hershey ,  Brian Lee Lawrence ,  Xiaolei Shi ,  Victor Petrovich Ostroverkhov

    发明人： John Anderson Fergus Ross ,  Kenneth Brakeley Welles ,  John Erik Hershey ,  Brian Lee Lawrence ,  Xiaolei Shi ,  Victor Petrovich Ostroverkhov

    IPC分类号： G11B7/0065 ,  G11B7/007 ,  G11B7/013 ,  G11B7/00

    CPC分类号： G11B7/013 ,  G11B7/00772 ,  G11B2007/0009

    摘要： The present techniques present methods and systems for increasing a data reading rate on optical data disks using a single reading head. The methods take advantage of the difference between a mean focal distance (MFD), or minimum spacing that the detector can distinguish between bits, and the minimum separation of bits in a single track to increase the reading speed. As the bits may be more closely spaced across adjacent tracks or layers, these techniques may be used to increase the reading speed of the disk. Specifically, the data symbols that make up a single bit-stream may be stored in a pattern horizontally across adjacent tracks, or vertically across adjacent layers. Accordingly, the focal point of the detector is scanned across the disk in the same pattern to read the individual data symbols.

    摘要翻译： 本技术提出了使用单个读取头来增加光学数据盘上的数据读取速率的方法和系统。 这些方法利用了平均焦距（MFD）或检测器可以区分位的最小间距以及单个轨道中位的最小间隔以增加读取速度之间的差异。 由于位可以在相邻轨道或层之间更紧密地间隔开，所以这些技术可以用于增加盘的读取速度。 具体地，构成单个位流的数据符号可以以相对于相邻轨迹的水平方式或跨越相邻层的垂直方式存储在图案中。 因此，检测器的焦点以相同的图案扫描在盘上以读取各个数据符号。