| 摘要 |
<p>A helical scan segmental tape recording/reproducing apparatus for recording digital television signals includes a headwheel (fig. 1) with clustered heads and an active scan period which is less than 330o whereby a buffer storage (53) is used for altering the timing of digital signals during recording and reproducing in order to elaborate a continuous signal during reproducing in spite of the scan gap and in order to create a space on the tape for recording time compressed audio signals in time division multiplex with the digital television signal. The buffer storage (53) also permits shuffling of data words within a data block to facilitate data error concealment during reproducing. Diametrically opposed head clusters providing an active scan period which is less than 180o may be also used.</p> |
