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    Digital VTR
    1.
    发明授权
    Digital VTR 失效
    数字录像机

    公开(公告)号：US5956454A

    公开(公告)日：1999-09-21

    申请号：US532308

    申请日：1995-09-22

    申请人： Junko Shinohara ,  Tomohiro Ueda ,  Sadayuki Inoue ,  Masako Asamura ,  Ken Onishi

    发明人： Junko Shinohara ,  Tomohiro Ueda ,  Sadayuki Inoue ,  Masako Asamura ,  Ken Onishi

    IPC分类号： H04N5/7826 ,  H04N5/783 ,  H04N9/804 ,  H04N9/82 ,  H04N5/91 ,  H04N5/917

    CPC分类号： H04N5/783 ,  H04N9/8042 ,  H04N5/78266 ,  H04N9/8227

    摘要： In a digital VTR which receives at least a digital video signal input in the form of a bit stream, and which records the bit stream according to a transparent recording method, header information is extracted from the bit stream and modified. Intra-coded block components are also detected and extracted from the bit stream, and one track is configured with an area for recording the input bit stream and an area for recording fast playback HP data. Extracted as the intra-coded block components are a predefined number of orthogonal transform coefficients, and the fast playback HP data is configured without appending EOB codes to the intra-coding block components. Alternatively, EOB codes are appended except that the shortest EOB code from a plurality of code maps is used. The digital VTR also records more than one fast playback signal in predefined regions on predefined tracks such that a first playback signal is recorded in an area at one location on one track, while a second playback signal is recorded in a plurality of areas on a track adjacent thereto.

    摘要翻译： 在数字VTR中，至少接收到以比特流形式输入的数字视频信号，并且根据透明记录方法记录比特流，从比特流中提取头信息并对其进行修改。 还从比特流检测和提取帧内编码块分量，并且一个轨道配置有用于记录输入比特流的区域和用于记录快速重放HP数据的区域。 当帧内编码块分量是预定数量的正交变换系数时被提取，并且配置快速重放HP数据而不将EOB代码附加到帧内编码块分量。 或者，除了使用来自多个代码图的最短的EOB代码之外，附加EOB代码。 数字VTR还在预定轨道上的预定义区域中记录多于一个快速重放信号，使得第一重放信号被记录在一个轨道上的一个位置的区域中，而第二重放信号被记录在轨道上的多个区域中 相邻。

    Digital VTR
    10.
    发明授权
    Digital VTR 有权
    数字录像机

    公开(公告)号：US07174090B2

    公开(公告)日：2007-02-06

    申请号：US10839277

    申请日：2004-05-06

    申请人： Masako Asamura ,  Satoshi Kurahashi ,  Tomohiro Ueda ,  Taketoshi Hibi ,  Tatsuo Yamasaki ,  Junko Ishimoto ,  Tohru Inoue ,  Ken Onishi

    发明人： Masako Asamura ,  Satoshi Kurahashi ,  Tomohiro Ueda ,  Taketoshi Hibi ,  Tatsuo Yamasaki ,  Junko Ishimoto ,  Tohru Inoue ,  Ken Onishi

    IPC分类号： H04N5/917

    CPC分类号： G11B15/087 ,  G11B15/18 ,  G11B15/1875 ,  G11B15/4673 ,  G11B15/52 ,  G11B27/005 ,  G11B27/3027 ,  G11B2220/90 ,  H04N5/78263 ,  H04N5/783 ,  H04N9/8042 ,  H04N9/8227 ,  H04N9/877 ,  H04N9/888

    摘要： In a digital VTR having a certain recording bit rate, within a range not higher than a remaining data rate after recording the bit stream, first HP data D1 is recorded in first specific regions, and second HP data D2 is recorded in second specific regions in specific tracks. In middle-speed and high-speed fast replay, the magnetic tape is transported continuously at a middle-speed or high-speed higher than the standard speed for normal replay, and the first HP data D1 is used in common, and at a low-speed fast replay of about twice the normal speed, the speed of the magnetic tape is alternated between a speed near the standard speed for normal replay, and a speed near the low-speed fast, and at the speed near the standard speed, the second HP data disposed in the second specific regions in the specific tracks and the first HP data disposed in the first specific regions in the specific tracks are both replayed.

    摘要翻译： 在具有一定记录比特率的数字VTR中，在记录比特流之后的不大于剩余数据速率的范围内，将第一HP数据D 1记录在第一特定区域中，并且将第二HP数据D 2以第二特定区域 特定轨道的区域。 在中速和高速快速重播中，磁带以高于正常重放的标准速度的中速或高速连续传送，并且第一HP数据D 1被共同使用，并且在 低速正常速度的两倍快速重放，磁带的速度在正常重放标准速度附近的速度和低速快速附近的速度之间交替，并且在接近标准速度的速度下， 布置在特定轨道中的第二特定区域中的第二HP数据和布置在特定轨道中的第一特定区域中的第一HP数据都被重放。