Trick play method for digital storage medium
    21.
    发明授权
    Trick play method for digital storage medium 有权
    数字存储介质的技巧播放方法

    公开(公告)号:US07212727B2

    公开(公告)日:2007-05-01

    申请号:US09926762

    申请日:2001-04-11

    申请人: Takanori Senoh

    发明人: Takanori Senoh

    IPC分类号: H04N5/91

    摘要: When trick play modes are implemented using a lookup table cross-referencing content divided into sectors of specific size with content encoding unit information, an accurate playback start time code cannot be detected because the total content playback time is not clear. A trick play method for digital storage media used to record and reproduce multimedia content resolves this problem and enables random access playback, fast-forward play, fast-reverse play and other trick play modes from any desired position in the content by recording program content segmented into media object units, each recorded as a separate file; recording a program manager file containing a media object information table; recording a media object information file containing playback time information and entry points at a specific time interval for each media object, and recording a playlist manager file containing a table of user-specified playback start program IDs and playback start time and end time information.

    摘要翻译: 当使用具有内容编码单元信息划分为特定尺寸的扇区的查找表来实现特技播放模式时,由于总内容播放时间不清楚,因此无法检测到准确的重放开始时间码。 用于记录和再现多媒体内容的数字存储介质的特技播放方法解决了这个问题,并通过记录节目内容分段来实现从内容中的任何所需位置进行随机访问播放,快进播放,快速反向播放和其他特技播放模式 进入媒体对象单元,每个记录为单独的文件; 记录包含媒体对象信息表的节目管理器文件; 记录包含每个媒体对象的特定时间间隔的播放时间信息和入口点的媒体对象信息文件,以及记录包含用户指定的播放开始节目ID和播放开始时间和结束时间信息的表格的播放列表管理器文件。

    Multimedia data retrieval device and method
    22.
    发明授权
    Multimedia data retrieval device and method 失效
    多媒体数据检索装置及方法

    公开(公告)号:US06785429B1

    公开(公告)日:2004-08-31

    申请号:US09347383

    申请日:1999-07-06

    申请人: Takanori Senoh

    发明人: Takanori Senoh

    IPC分类号: G06K954

    摘要: The multimedia data retrieval device of this invention includes: a content storage section for storing a plurality of compressed contents; a client terminal for inputting feature data, a feature data storage section for reading feature data extracted from at least one of the compressed contents from the content storage section and storing the feature data of the at least one compressed contents; and a content retrieval section for selecting feature data approximate to the feature data input via the client terminal among the feature data stored in the feature data storage section, and retrieving a content having the selected feature data from the content storage section.

    摘要翻译: 本发明的多媒体数据检索装置包括:存储多个压缩内容的内容存储部分; 用于输入特征数据的客户终端,特征数据存储部分,用于从内容存储部分读取从至少一个压缩内容中提取的特征数据,并存储至少一个压缩内容的特征数据; 以及内容检索部分,用于选择与存储在特征数据存储部分中的特征数据中经由客户终端输入的特征数据近似的特征数据,以及从内容存储部分检索具有所选特征数据的内容。

    Apparatus and method for watermark data insertion and apparatus and method for watermark data detection
    23.
    发明授权
    Apparatus and method for watermark data insertion and apparatus and method for watermark data detection 失效
    水印数据插入装置及方法,水印数据检测装置及方法

    公开(公告)号:US06240121B1

    公开(公告)日:2001-05-29

    申请号:US09112388

    申请日:1998-07-09

    申请人: Takanori Senoh

    发明人: Takanori Senoh

    IPC分类号: H04N708

    摘要: A watermark data insertion method for inserting watermark data into an input original signal is provided. The method includes: a frequency transform step for applying a frequency transform to the original signal to form an intermediate signal; a watermark data insertion step for inserting the watermark data into a first set of frequency component of the intermediate signal; and a frequency inverse transform step for applying an inverse frequency transform to the intermediate signal, the watermark data having been inserted into the intermediate signal, thereby obtaining a signal containing the watermark data embedded therein. The watermark data insertion step includes: determining, based on pseudo random numbers, the first set of frequency components of the intermediate signal into which the watermark data is inserted; and using a second set of frequency components of the intermediate signal as a reference signal, the watermark data not being inserted into the second set of frequency components.

    摘要翻译: 提供了一种用于将水印数据插入到输入原始信号中的水印数据插入方法。 该方法包括:频率变换步骤,用于对原始信号施加频率变换以形成中间信号; 水印数据插入步骤,用于将水印数据插入到中间信号的第一组频率分量中; 以及频率逆变换步骤,用于对中间信号应用逆频变换,将水印数据插入到中间信号中,从而获得包含嵌入其中的水印数据的信号。 水印数据插入步骤包括:基于伪随机数确定插入水印数据的中间信号的第一组频率分量; 并且使用所述中间信号的第二组频率分量作为参考信号,所述水印数据不被插入到所述第二组频率分量中。