| 摘要 |
PURPOSE:To reproduce repeat section accurately with low cost and simple constitution, by counting a reel pulse and a reference pulse with higher frequency and discriminating the repeat section. CONSTITUTION:A reference pulse generating circuit 27 generating reference pulses P1,P3 with higher frequency than that of a reel pulses P2 is provided. When a repeat start button 21 turns on, counting of the pulses P2,P1 is started with a repeat section discrimination circuit 23 via up/down counters 25,29 and latch circuit 26,30,31, and when a repeat end button 22 turns on, rewinding mode is obtained, and the number of pulses for the repeat section can accurately be counted. This value is preset to the counters 25,29, the reference pulse P3 is subtracted to become zero, a reproducing mode is again obtained. The said count value is again preset, subtraction is made with the pulse P1 to become zero, and rewinding is made again and this is repeated. Thus, the pulse in higher frequency is counted, allowing to reproduce the repeat section accurately. |
