| 摘要 |
PURPOSE:To realize the recording of the announce signal with a high density, by recording plural data of picture information on the plural tracks of a magnetic tape with a shift of phase respectively and then recording the corresponding announce signals successively on another track. CONSTITUTION:Plural data D of picture information are recorded sucessively on the 1st and 2nd tracks T2 and T3 of a magnetic tape with a centain length respectively, and at the same time the phases of the data D are shifted from each other at the tracks T2 and T3. Then an announce signal A corresponding to the data D on the tracks T2 and T3 is recorded on the 3rd track T1 according to the order of phases of the data D. In such way, the announce signal can be recorded on a piece of track with a high density, and furthermore the time can be kept constant from the recording of the announce signal to the display of the picture information. |
