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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
    • DATA PROCESSOR
    • 数据处理器
    • US20090080509A1
    • 2009-03-26
    • US11719318
    • 2005-11-16
    • Masanori ItohHiroshi YahataHideki OtakaHideaki Mita
    • Masanori ItohHiroshi YahataHideki OtakaHideaki Mita
    • H04N7/12
    • G11B27/034G11B27/329G11B2220/2516H04N5/781H04N9/8042H04N21/440281
    • To allow the user to specify easily a frame when video, of which the frame rate (or vertical scanning frequency) has been converted, is being edited.A data processor includes: a receiving section for receiving a signal representing first video in which a plurality of pictures are presented at a first frequency; an encoder for generating a data stream representing second video, in which the pictures are presented at a second frequency, different from the first frequency, based on the signal; and a writing section for writing the data stream on a storage medium. The encoder generates picture data about the respective pictures, first time information indicating presentation times at the first frequency, and second time information indicating presentation times at the second frequency, and stores the first time information, the second time information and picture data of the respective pictures to be presented based on the first time information in association with each other, thereby generating the data stream.
    • 为了允许用户在正在编辑帧速率(或垂直扫描频率)的视频的情况下容易地指定帧。 数据处理器包括:接收部分,用于接收表示以第一频率呈现多个图像的第一视频的信号; 编码器,用于基于该信号,生成表示第二视频的数据流,其中以不同于第一频率的第二频率呈现图像; 以及用于将数据流写入存储介质的写入部分。 编码器生成关于各图像的图像数据,指示第一频率的显示时间的第一时间信息和指示第二频率的显示时间的第二时间信息,并且存储第一时间信息,第二时间信息和各个图像数据的第二时间信息和图像数据 基于与第一时间信息相关联地呈现的图像,从而生成数据流。