公开(公告)号：US5606422A

公开(公告)日：1997-02-25

申请号：US441995

申请日：1995-05-16

申请人： Naofumi Yanagihara ,  Keiji Kanoto ,  Yukio Kubota

发明人： Naofumi Yanagihara ,  Keiji Kanoto ,  Yukio Kubota

IPC分类号： H04N5/92 ,  H04N5/926 ,  H04N9/804 ,  H04N9/808 ,  H04N9/79 ,  G11B5/00

CPC分类号： H04N5/9264 ,  H04N9/8047

摘要： Methods and apparatus are provided for recording video signals in a plurality of tracks on a recording medium. In certain embodiments, first and second video signal intervals include respective first and second common sub-area signals representing at least one common sub-area of a video screen. The common sub-area signals of the first and second video signal intervals are recorded at respectively different locations within the plurality of tracks. In certain embodiments, component color video signals including luminance signals and first and second color difference signals are divided into a plurality of discrete cosine transformation (DCT) blocks and blocks representing common respective subdivisions of a video screen are assembled into corresponding macro blocks. Adjacent macro blocks are assembled into super macro blocks which, in turn, are arranged in a shuffled sequence relative to the positions of their subdivisions on the video screen for recording in the shuffled sequence. In certain embodiments, digital video signals representing a video screen are recorded in a plurality of tracks on a recording medium after dividing the digital video signals into a plurality of macro blocks assembled into sub-area groups of the video screen. The sub-area groups are shuffled by forming a sequence of track units each including a plurality of the sub-area groups one each from a respective horizontal division of the video screen. Each track unit is recorded in a respective one of a plurality tracks on the recording medium.

摘要翻译： 提供了用于在记录介质上的多个磁道中记录视频信号的方法和装置。 在某些实施例中，第一和第二视频信号间隔包括表示视频屏幕的至少一个公共子区域的相应的第一和第二公共子区域信号。 第一和第二视频信号间隔的公共子区域信号被记录在多个轨道内的不同位置处。 在某些实施例中，包括亮度信号和第一和第二色差信号的分量彩色视频信号被分成多个离散余弦变换（DCT）块，并且表示视频屏幕的共同相应细分的块被组合成相应的宏块。 相邻宏块被组装成超宏块，其又相对于它们在视频屏幕上的子部分的位置以混洗顺序排列，以便以混洗序列记录。 在某些实施例中，表示视频屏幕的数字视频信号在将数字视频信号划分成组合成视频屏幕的子区域组的多个宏块之后被记录在记录介质上的多个磁道中。 通过形成一系列轨道单元来混合子区域组，每个轨道单元包括多个子区域组，每个子区域组分别来自视频屏幕的相应水平划分。 每个轨道单元被记录在记录介质上的多个轨道中的相应一个轨道中。

公开(公告)号：US5557420A

公开(公告)日：1996-09-17

申请号：US283652

申请日：1994-08-01

申请人： Naofumi Yanagihara ,  Keiji Kanoto ,  Yukio Kubota

发明人： Naofumi Yanagihara ,  Keiji Kanoto ,  Yukio Kubota

IPC分类号： H04N5/92 ,  H04N5/926 ,  H04N9/804 ,  H04N9/808 ,  H04N5/76

CPC分类号： H04N5/9264 ,  H04N9/8047

摘要： Methods and apparatus are provided for recording video signals in a plurality of tracks on a recording medium. In certain embodiments, first and second video signal intervals include respective first and second common sub-area signals representing at least one common sub-area of a video screen. The common sub-area signals of the first and second video signal intervals are recorded at respectively different locations within the plurality of tracks. In certain embodiments, component color video signals including luminance signals and first and second color difference signals are divided into a plurality of discrete cosine transformation (DCT) blocks and blocks representing common respective subdivisions of a video screen are assembled into corresponding macro blocks. Adjacent macro blocks are assembled into super macro blocks which, in turn, are arranged in a shuffled sequence relative to the positions of their subdivisions on the video screen for recording in the shuffled sequence. In certain embodiments, digital video signals representing a video screen are recorded in a plurality of tracks on a recording medium after dividing the digital video signals into a plurality of macro blocks assembled into sub-area groups of the video screen. The sub-area groups are shuffled by forming a sequence of track units each including a plurality of the sub-area groups one each from a respective horizontal division of the video screen. Each track unit is recorded in a respective one of a plurality tracks on the recording medium.

摘要翻译： 提供了用于在记录介质上的多个磁道中记录视频信号的方法和装置。 在某些实施例中，第一和第二视频信号间隔包括表示视频屏幕的至少一个公共子区域的相应的第一和第二公共子区域信号。 第一和第二视频信号间隔的公共子区域信号被记录在多个轨道内的不同位置处。 在某些实施例中，包括亮度信号和第一和第二色差信号的分量彩色视频信号被分成多个离散余弦变换（DCT）块，并且表示视频屏幕的共同相应细分的块被组合成相应的宏块。 相邻宏块被组装成超宏块，其又相对于它们在视频屏幕上的子部分的位置以混洗顺序排列，以便以混洗序列记录。 在某些实施例中，表示视频屏幕的数字视频信号在将数字视频信号划分成组合成视频屏幕的子区域组的多个宏块之后被记录在记录介质上的多个磁道中。 通过形成一系列轨道单元来混合子区域组，每个轨道单元包括多个子区域组，每个子区域组分别来自视频屏幕的相应水平划分。 每个轨道单元被记录在记录介质上的多个轨道中的相应一个轨道中。