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    • 4. 发明授权
    • Apparatus for recording and reproducing a digital video signal in the
form of order-rearranged and coded data
    • 用于以订单重排和编码数据的形式记录和再现数字视频信号的装置
    • US5175631A
    • 1992-12-29
    • US567293
    • 1990-08-14
    • Tatsuro JuriMasakazu NishinoHideki OhtakaKouji Matsushita
    • Tatsuro JuriMasakazu NishinoHideki OhtakaKouji Matsushita
    • H04N5/783H04N5/926H04N9/797H04N9/804H04N9/877
    • H04N19/436H04N5/9264H04N9/7973H04N9/8047H04N9/877H04N5/783
    • A video signal digital recording and reproducing apparatus includes: a rearranging section for rearranging a sequence of signals on a rectangular unit by rectangular unit basis formed by sectioning a group of pixel data on a screen of a digital video signal; an encoding section for subjecting the signals in the rectangular units to bit rate reduction; a block forming section for gathering plural number of the coded rectangular units to constitute a block of signals, and a recording the block of signals section for recording on a recording medium. The rearranging section divides the screen into plural regions, takes out the rectangular units by a certain number in order from each region, and carries out rearrangement so that mutually corresponding rectangular units which are contained respectively in adjacent blocks on the recording medium are mutually adjacent on the screen. The recording section is constituted so that the blocks signals are recorded simultaneously in parallel on the recording medium by using plural channels. The rearranging section may have such a constitution that the screen is divided into plural regions and the rectangular units are taken out by a certain number in order from each region, and rearrangement is carried out to that mutually corresponding rectangular units which are contained respectively in adjacent or neighboring blocks to be simultaneously recorded in parallel by the plural channels on the recording section are mutually adjacent on the screen.
    • 视频信号数字记录和再现装置包括:重排部分,用于通过在数字视频信号的屏幕上划分一组像素数据而形成矩形单元,在矩形单元上重新排列信号序列; 编码部分,用于对矩形单元中的信号进行比特率降低; 用于收集多个编码矩形单元以构成信号块的块形成部分,以及在记录介质上记录用于记录的信号块部分。 重排部分将屏幕分成多个区域,从每个区域按顺序取出一定数量的矩形单元,并执行重排,使得分别存储在记录介质上的相邻块中的相互对应的矩形单元相互相邻 屏幕。 记录部分被构造成使得通过使用多个通道将块信号同时记录在记录介质上。 重排部分可以具有这样一种结构,即屏幕被分成多个区域,矩形单元从各个区域按顺序取出一定数量,并且对相邻的相应的矩形单元进行重排,该矩形单元分别包含在相邻的 或通过记录部分上的多个通道并行同时记录的相邻块在屏幕上相互相邻。
    • 5. 发明授权
    • Apparatus for recording and reproducing band-compression coded video data
    • 用于记录和再现带压缩编码视频数据的装置
    • US5351131A
    • 1994-09-27
    • US780986
    • 1991-10-23
    • Masakazu NishinoTatsuro JuriHideki Ohtaka
    • Masakazu NishinoTatsuro JuriHideki Ohtaka
    • H04N5/783H04N5/926H04N5/945H04N5/91
    • H04N5/9264H04N5/945H04N5/783
    • Disclosed are a video signal recording apparatus for dividing digital video signal into blocks, transforming orthogonally, quantizing, coding in a variable length, and recording always in identical data quantity in a unit of specific number of blocks, and a video signal reproducing apparatus for decoding the recorded signal in variable length, quantizing inversely, transforming inversely and orthogonally, and reproducing the original digital video signal. The coding data in the specific number of blocks in the identical data quantity is divided in two code rows, the individual low frequency components are assigned to separate sync blocks, and high frequency components are also assigned to separate sync blocks, and recorded. When reproducing, if the sync block of high frequency components is wrong, it is possible to decode only with low frequency components, and the screen is reproduced at high fidelity to the reproducing speed at the time of high speed reproducing. By recording the position information indicating the boundary position between two code rows, or the concealment information showing the concealment state, even by variable length coding, the range of error concealment may be narrowed, and the effects of error may be minimized.
    • 公开了一种视频信号记录装置,用于将数字视频信号分成块,以可变长度进行正交,量化,编码,并以特定数量的块为单位总是以相同的数据量进行记录;以及视频信号再现装置,用于解码 以可变长度记录的信号,逆向量化,逆向和正交变换,并再现原始数字视频信号。 将相同数据量的特定数量的块中的编码数据划分为两个代码行,将各个低频分量分配给单独的同步块,并将高频分量分配给分离的同步块并记录。 当再现时,如果高频分量的同步块错误,则可以仅利用低频分量进行解码,并且在高速再现时以高保真度再现再现速度的画面。 通过记录指示两个代码行之间的边界位置的位置信息或表示隐藏状态的隐藏信息,即使通过可变长度编码,错误隐藏的范围也可能变窄,并且误差的影响可能最小化。
    • 6. 发明授权
    • Digital signal recording apparatus
    • 数字信号记录装置
    • US06215950B1
    • 2001-04-10
    • US08708703
    • 1996-09-05
    • Chiyoko MatsumiTatsuro JuriAkira IketaniMakoto GotoSusumu YamaguchiHideki OtakaShigeru AwamotoMasakazu NishinoTakao KashiroTadashi Ono
    • Chiyoko MatsumiTatsuro JuriAkira IketaniMakoto GotoSusumu YamaguchiHideki OtakaShigeru AwamotoMasakazu NishinoTakao KashiroTadashi Ono
    • H04N5783
    • H04N9/8047H04N5/78266H04N9/7921H04N9/8063H04N9/8205
    • The digital signal recording apparatus of the invention for recording a video signal on a recording medium, includes: a mode setting section for setting a recording mode, the recording mode being one of a standard recording mode and a long-time recording mode having a longer recording time than that of the standard recording mode; a sampling section for sampling the video signal at a sampling number corresponding to the recording mode set by the mode setting section, the sampling number when the selected recording mode is the long-time recording mode being smaller than the sampling number when the selected recording mode is the standard recording mode; a coding section for coding the video signal sampled by the sampling section at a compression rate corresponding to the recording mode set by the mode setting section, the compression rate when the selected recording mode is the long-time recording mode being higher than the compression rate when the selected recording mode is the standard recording mode; and a recording section for recording the video signal coded by the coding section on a recording medium.
    • 本发明的用于在记录介质上记录视频信号的数字信号记录装置包括:模式设置部分,用于设置记录模式,记录模式是标准记录模式和长时间记录模式之一 录制时间高于标准录音模式; 采样部分,用于以对应于由模式设置部分设置的记录模式的采样数采样视频信号,当所选择的记录模式是长时间记录模式时,当所选择的记录模式 是标准录音模式; 编码部分,用于以与由模式设置部分设置的记录模式对应的压缩率对采样部分采样的视频信号进行编码,当所选择的记录模式是长时间记录模式时的压缩率高于压缩率 当所选择的记录模式是标准记录模式时; 以及记录部分,用于将由编码部分编码的视频信号记录在记录介质上。