Digital signal recording apparatus which utilizes predetermined areas on a magnetic tape for multiple purposes
    4.
    发明授权
    Digital signal recording apparatus which utilizes predetermined areas on a magnetic tape for multiple purposes 失效
    在磁带上利用预定区域用于多个目的的数字信号记录装置

    公开(公告)号:US06337948B1

    公开(公告)日:2002-01-08

    申请号:US09583164

    申请日:2000-05-30

    IPC分类号: H04N591

    摘要: A signal which is to be used in high-speed playback is recorded in a predetermined region of a track. An error correcting check code region for recording an error correcting check code is formed at a position adjacent to the predetermined region. In accordance with the usage, an error correcting check code for high-speed playback, an error correcting check code for normal playback, or predetermined fixed data is recorded in the error correcting check code region. In a digital VTR which records and plays back data at plural kinds of data rates, trick playback data are recorded so that a head scans a subcode area or a VAUX area in high-speed playback at a predetermined tape running speed in each record mode. An area for recording an error correcting check code is used as an area for, in addition to an error correcting check code for normal playback, recording an error correcting check code for trick playback, normal playback data, or trick playback data.

    摘要翻译: 要在高速播放中使用的信号被记录在轨道的预定区域中。 在与预定区域相邻的位置处形成用于记录纠错校验码的纠错校验码区域。 根据该用途,用于高速重放的纠错校验码,用于正常重放的纠错校验码或预定的固定数据被记录在纠错校验码区域中。 在以多种数据速率记录和重放数据的数字VTR中,记录特技重放数据,使得头在每个记录模式下以预定的磁带运行速度扫描高速重放中的子代码区域或VAUX区域。 用于记录纠错校验码的区域除了用于正常播放的纠错校验码之外,还用于记录用于特技重放,正常播放数据或特技播放数据的纠错校验码。

    Digital VTR
    8.
    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

    IPC分类号: H04N5/917

    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。