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    • 9. 发明授权
    • Apparatus and method for image coding and recording/reproducing
    • 用于图像编码和记录/再现的装置和方法
    • US5923813A
    • 1999-07-13
    • US713166
    • 1996-09-12
    • Keishi OkamotoHideaki MitaTatsushi Bannai
    • Keishi OkamotoHideaki MitaTatsushi Bannai
    • H04N5/92G06T9/00G11B20/12H04N5/782H04N5/7826H04N5/937H04N7/52H04N9/804H04N19/42H04N19/423H04N19/436H04N19/44H04N19/46H04N19/60H04N19/625H04N19/65H04N19/70H04N19/85H04N19/88H04N19/89H04N19/91H04N5/917H04N7/26
    • H04N9/8047G06T9/007H04N21/236H04N21/434H04N5/78263
    • An image coding and recording/reproducing apparatus for encoding video signals using variable-length coding and for recording the video signals in units of fixed-length sync blocks includes: an orthogonal transform unit for performing an orthogonal transform on each transformation block including a plurality of pixels and for obtaining orthogonal transform coefficients for each transformation block; a coding processor for generating encoded data for each encoding group including a plurality of the transformation blocks, the encoded data being obtained by variable-length encoding the orthogonal transform coefficients of each transformation block and by arranging the resultant encoded transform coefficients in the order of increasing component frequency starting with a low frequency component; a storing processor for dividing a plurality of the sync blocks into low frequency sync blocks and high frequency sync blocks, each of the low frequency sync blocks being assigned with one of the encoding groups, a first portion of the encoded data of the encoding group being stored in the corresponding low frequency sync block from a beginning to an Lth bit, a second portion of the encoded data at a (L+1)th bit and beyond being stored in the high frequency sync blocks in a prescribed order; and a recording unit for recording the low frequency sync blocks and the high frequency sync blocks which store the encoded data therein on a recording medium.
    • 用于使用可变长度编码对视频信号进行编码并用于以固定长度的同步块为单位记录视频信号的图像编码和记录/再现装置包括:正交变换单元,用于对包括多个 并且用于获得每个变换块的正交变换系数; 编码处理器,用于为包括多个变换块的每个编码组生成编码数据,所述编码数据是通过对每个变换块的正交变换系数进行可变长度编码而获得的,并且按照增加的顺序排列所得到的编码变换系数 分量频率以低频分量开始; 用于将多个同步块划分为低频同步块和高频同步块的存储处理器,每个低频同步块被分配有一个编码组,编码组的编码数据的第一部分是 存储在相应的低频同步块中,从开始到第L位,第(L + 1)比特的编码数据的第二部分并且超出以预定顺序存储在高频同步块中; 以及用于在记录介质上记录存储编码数据的低频同步块和高频同步块的记录单元。
    • 10. 发明申请
    • Information processing apparatus, and method, program recording medium, and program
    • 信息处理装置和方法,程序记录介质和程序
    • US20070067468A1
    • 2007-03-22
    • US10556414
    • 2004-05-12
    • Kenji HyodoHideaki Mita
    • Kenji HyodoHideaki Mita
    • G06F15/16
    • G11B20/12G11B27/034
    • Files are capable of being exchanged between a broadcast device and a personal computer. In a file of an AV multiplex format, a header (size and type information) of a skip atom of QT is described at the beginning (run-in) that is ignored in an MXF file. An MXF header is described in the skip atom that is skipped over in a QT file. A movie atom and a mdat header of QT are described in a filler that is ignored in the MXF file. In other words, a file header portion of the AV multiplex format satisfies both the structure of the MXF file and the structure of the QT file. With this file structure, a file of the AV multiplex format can be recognized by both an MXF standard basis edit device and a QT software installed PC. The present invention can be applied to a picture record device.
    • 文件能够在广播设备和个人计算机之间交换。 在AV多路复用格式的文件中,在MXF文件中忽略的起始(运行)中描述了QT的跳过原子的标题(大小和类型信息)。 在QT文件中跳过的跳过原子中描述了MXF头。 在MXF文件中忽略的填充程序描述了QT的电影原子和mdat标题。 换句话说,AV多路复用格式的文件头部分满足MXF文件的结构和QT文件的结构。 利用该文件结构,可以通过MXF标准编辑装置和安装有QT软件的PC来识别AV多路复用格式的文件。 本发明可以应用于图像记录装置。