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    • 5. 发明授权
    • Recording/reproducing apparatus of the helical scan type
    • 螺旋扫描型的记录/重放装置
    • US5745638A
    • 1998-04-28
    • US673781
    • 1996-06-20
    • Albert M. A. RijckaertRonald W. J. J. Saeijs
    • Albert M. A. RijckaertRonald W. J. J. Saeijs
    • G11B5/027G11B5/008G11B5/53G11B27/029G11B27/032G11B27/036H04N5/7826H04N9/806H04N5/76
    • H04N9/8063G11B27/032G11B27/036G11B5/0086G11B2220/90
    • An apparatus of the helical scan type for reproducing a digital video signal from slant tracks (T) on a record carrier, the digital video signal having been recorded in first track portions (TP1) of the tracks. In an edit mode, the digital video signal is reproduced from the first track portions and a corresponding digital audio signal is recorded in second track portions (TP2) of the tracks. The apparatus includes at least one read head (RH) for reading the digital video signal recorded in the first track portions of the tracks and at least one write head (WH) for writing the second channel signal in the second track portions. The read head (RH) and the write head (WH) are positioned on a rotatable head drum at such a location relative to each other that when the read head reads the digital video signal from a first track portion of a first track (T.sub.i+24), the write head writes the second channel signal in a second track portion in a second track (T.sub.i), the second track being spaced a specified number (24) of tracks away from the first track.
    • 一种用于从记录载体上的斜轨(T)再现数字视频信号的螺旋扫描装置,该数字视频信号已被记录在轨道的第一轨道部分(TP1)中。 在编辑模式中,从第一轨道部分再现数字视频信号,并将对应的数字音频信号记录在轨道的第二轨道部分(TP2)中。 该装置包括用于读取记录在轨道的第一轨道部分中的数字视频信号的至少一个读取头(RH)和用于在第二轨道部分中写入第二通道信号的至少一个写入头(WH)。 读头(RH)和写头(WH)位于相对于彼此的这样的位置处的可旋转磁头鼓上,当读取头从第一磁道的第一磁道部分读取数字视频信号(Ti + 如图24所示),写入头将第二声道信号写入第二声道(Ti)中的第二声道部分,第二声道与第一声道相隔一定数量的(24)个音轨。