| 摘要 |
<p>PURPOSE:To reproduce a linking-recorded part without any trouble by obtaining the phase control signal of a capstan motor trailing a tracking error signal during a reproducing action. CONSTITUTION:A time difference n=a-c between a capstan control signal (a) and a capstan rotation detecting pulse (c) is sent to a subtracter 31 through a latch 23 during the reproducing action. On the other hand, a counter 22 D/A- converts 26 a counted value (d) of the signal (a), voltage-compares 27 an output (d') with the tracking error signal, sends a signal (f), whose output is supplied to a mono-multi 28 and inverted, and an output signal (g) from the latch 30 is given to a subtracter 31. Here, the subtracter 31 subtracts a value (m) of the signal (g) from the value (n), sends it through a latch 32 to a comparator 33, here it is compared with the counter output (d), and a signal (i) is taken off through a mono-multi 34. The signal (i) delays a reference signal by the time, in which the output in the phase comparison of the capstan motor subtracts the phase difference to be equal with the tracking error signal.</p> |
