Method and apparatus for encrypting and decrypting digital data
    22.
    发明授权
    Method and apparatus for encrypting and decrypting digital data 有权
    用于加密和解密数字数据的方法和装置

    公开(公告)号:US07549058B1

    公开(公告)日:2009-06-16

    申请号:US11172369

    申请日:2005-06-30

    IPC分类号: H04L9/32 H04L9/00 H04N7/167

    摘要: A method and apparatus for encrypting and decrypting digital data employing multiple Huffman tables and at least one encryption key to enhance security of the digital data. At least one image parameter for characterizing the digital data, such as a motion vector table or DC-luminance, is selected as an image parameter. All possible Huffman tables according to the image parameter are then generated by Huffman tree mutation. A predetermined number of active Huffman tables from all possible Huffman tables are selected using a first encryption key and a hash function. Afterward, a coding sequence for the active Huffman tables is generated using a second encryption key and the hash function. Finally, the digital data is encrypted into an encrypted bit stream by the active Huffman tables with the coding sequence. Encrypted symbols of the image parameter can be reduced by symbol statistic analysis, thus reducing computation effort.

    摘要翻译: 一种用于使用多个霍夫曼表加密和解密数字数据的方法和装置,以及至少一个加密密钥以增强数字数据的安全性。 选择用于表征诸如运动矢量表或DC亮度的数字数据的至少一个图像参数作为图像参数。 然后根据图像参数,所有可能的霍夫曼表由霍夫曼树突变产生。 使用第一加密密钥和散列函数来选择来自所有可能霍夫曼表的预定数量的活跃​​霍夫曼表。 之后,使用第二加密密钥和散列函数生成活动霍夫曼表的编码序列。 最后,通过具有编码顺序的主动霍夫曼表将数字数据加密成加密比特流。 通过符号统计分析可以减少图像参数的加密符号,从而减少计算量。

    Uniform Program Indexing Method with Simple and Robust Audio Feature and Related Enhancing Methods
    23.
    发明申请
    Uniform Program Indexing Method with Simple and Robust Audio Feature and Related Enhancing Methods 有权
    具有简单稳健的音频特征和相关增强方法的统一程序索引方法

    公开(公告)号:US20080292273A1

    公开(公告)日:2008-11-27

    申请号:US11752932

    申请日:2007-05-24

    IPC分类号: H04N5/91

    CPC分类号: H04N5/76

    摘要: Simple, computational efficient, and robust audio features are applied in a uniform program indexing method for picking up video segments relating to highlight plays in a recorded program worthy of being reviewed. By focusing on certain frequencies in an audio sequence of the program, a computational complexity of the uniform program indexing method is significantly decreased. With the aid of MFCC coefficients and a DFBE coefficient generated from the MFCC coefficients, audio patterns may be utilized for differentiating exciting events in the program from other unnecessary information. Scores corresponding to various audio segments are regarded as standards for picking up video segments in the program worthy of being chosen in a recorded highlight collection. Some low-level-feature parameters, some video segments having highlight-related visual characteristics, and a re-ranking procedure are utilized for enhancing precision of the scores for providing video segments worthy of being reviewed.

    摘要翻译: 简单,计算效率和健壮的音频功能被应用在统一的节目索引方法中,用于拾取与被评估的记录节目中的高清播放有关的视频段。 通过集中在程序的音频序列中的某些频率,均匀程序索引方法的计算复杂度显着降低。 借助于MFCC系数和从MFCC系数产生的DFBE系数,音频模式可用于将程序中的激励事件与其他不必要的信息区分开。 对应于各种音频段的分数被认为是用于拾取程序中的视频段的标准,值得在记录的高亮集合中选择。 一些低级特征参数,一些具有高亮度相关视觉特征的视频片段和重新排序过程被用于提高用于提供值得被评估的视频片段的分数的精度。

    Method and system for rendering read-only storage medium virtually re-writable
    25.
    发明申请
    Method and system for rendering read-only storage medium virtually re-writable 审中-公开
    用于渲染只读存储介质的方法和系统几乎可重写

    公开(公告)号:US20070147614A1

    公开(公告)日:2007-06-28

    申请号:US10579415

    申请日:2004-11-15

    申请人: Declan Kelly Bei Wang

    发明人: Declan Kelly Bei Wang

    IPC分类号: H04K1/00

    摘要: A method (1,2) of and system (3) for rendering a removable read-only storage medium (30) virtually re-writable by providing a unique medium identifier (43) for the read-only storage medium (30) and by providing a link to a networked storage area of a mass storage device, wherein access to said storage area is granted by said medium identifier. According to one embodiment access to said network storage area is limited to a restricted area, wherein the writable option only works within the restricted area. According to another embodiment, a Blu-Ray ROM disc is linked to user-specific contents on a network storage device. This allows the Blu-Ray ROM disc, being identified by a unique medium identifier, e.g. based on a barcode in the Burst Cutting Area (42) of the disc, to have an identical user defined behaviour on arbitrary players connected to the network.

    摘要翻译: 一种用于通过为只读存储介质(30)提供唯一的介质标识符(43)和通过仅读存储介质(30)提供唯一的介质标识符(43)来呈现可移除的只读存储介质(30)的方法(1,2)和系统(3) 提供到大容量存储设备的网络存储区域的链接,其中通过所述介质标识符授予对所述存储区域的访问。 根据一个实施例,对所述网络存储区域的访问被限制到限制区域,其中可写选项仅在受限区域内工作。 根据另一个实施例,蓝光ROM光盘链接到网络存储设备上的用户特定内容。 这允许通过唯一的介质标识符识别的蓝光ROM盘,例如。 基于盘的突发切割区域(42)中的条形码,在连接到网络的任意玩家上具有相同的用户定义的行为。

    Dummy links in storage medium content
    26.
    发明申请
    Dummy links in storage medium content 审中-公开
    存储介质内容中的虚拟链接

    公开(公告)号:US20060245343A1

    公开(公告)日:2006-11-02

    申请号:US10570292

    申请日:2004-08-19

    IPC分类号: G11B7/24

    摘要: A rewritable storage medium comprising predefined content which is adapted for being integrated with additional user-defined content is described, the storage medium comprises: a first portion comprising said predefined content; a second portion for adding said user-defined content; wherein said predefined content in said first portion comprises links to said second portion. Thereby the user can customise the predefined content on the storage medium by adding personal content being an integrated part of the predefined content. Further the user can make dedicated annotations and comments on each category he visits, the connection is built up by the dummy links. According to the invention the user's own content is integrated with the published part of the disc giving an easily personalised guide book. In more general terms the user buys disc content with some prepredefined content, which can be enhanced by user's own content in a seamless way.

    摘要翻译: 描述了包括适于与额外的用户定义的内容集成的预定义内容的可重写存储介质,所述存储介质包括:包括所述预定内容的第一部分; 第二部分,用于添加所述用户定义的内容; 其中所述第一部分中的所述预定义内容包括到所述第二部分的链接。 因此,用户可以通过添加作为预定义内容的集成部分的个人内容来定制存储介质上的预定内容。 此外,用户可以对他访问的每个类别进行专门的注释和评论,连接由虚拟链接构建。 根据本发明,用户自己的内容与盘的公开部分集成,给出一个容易个性化的指导书。 在更一般的术语中,用户用一些预定义的内容购买光盘内容,这可以通过用户自己的内容以无缝的方式增强。

    Communication system and method between a recording and/or reproducing device and a remote unit
    27.
    发明申请
    Communication system and method between a recording and/or reproducing device and a remote unit 审中-公开
    记录和/或再现设备与远程单元之间的通信系统和方法

    公开(公告)号:US20060155861A1

    公开(公告)日:2006-07-13

    申请号:US10525138

    申请日:2003-08-14

    IPC分类号: G06F15/16

    摘要: The present invention relates to a communication and/or reproducing device (20) able to read a data carrier (22) and a remote unit (10) comprising additional data (11) for the data carrier (22). The recording and/or reproducing device (20) and the remote unit (10) communicate via a network (30). The remote unit (10) is able to retrieve data carrier properties (23) from the data carrier (22) inserted in the recording and/or reproducing device (20), and to authenticate said data carrier (22) by comparing said properties (23) with the ones of a corresponding data carrier legally produced by a provider, before sending the additional data (11) to said recording and/or reproducing device (20).

    摘要翻译: 本发明涉及能够读取数据载体(22)的通信和/或再现设备(20)和包括数据载体(22)的附加数据(11)的远程单元(10)。 记录和/或再现设备(20)和远程单元(10)经由网络(30)进行通信。 远程单元(10)能够从插入在记录和/或再现设备(20)中的数据载体(22)检索数据载体属性(23),并通过比较所述属性(22)来认证所述数据载体(22) 在将附加数据(11)发送到所述记录和/或再现装置(20)之前,由提供商合法产生的相应数据载体中的数据载体。

    EXTENSIBLE DISC PLAYER
    29.
    发明申请
    EXTENSIBLE DISC PLAYER 有权
    可扩展盘播放器

    公开(公告)号:US20120189280A1

    公开(公告)日:2012-07-26

    申请号:US13438212

    申请日:2012-04-03

    IPC分类号: H04N9/80

    摘要: The present invention provides an extensible disc player that is upgradeable to play new content types. The player's capability can be extended by downloading an appropriate decoder from a web server via the Internet. In this way, the player can play back contents that it does not originally support. If the content type is unknown, the player will check whether the disc contains a URL for linking to a web site containing an appropriate decoder. If the disc contains the URL, the player will access the web site to download the appropriate decoder. In a similar manner, the capability of a recorder can also be expanded by downloading appropriate encoders from the Internet.

    摘要翻译: 本发明提供了可升级以播放新内容类型的可扩展盘播放器。 通过互联网从网络服务器下载适当的解码器可以扩展播放器的能力。 以这种方式,播放器可以播放它最初不支持的内容。 如果内容类型未知,播放器将检查光盘是否包含用于链接到包含适当解码器的网站的URL。 如果光盘包含URL,播放器将访问该网站以下载相应的解码器。 以类似的方式,也可以通过从因特网下载适当的编码器来扩展记录器的能力。