JPS6464167A - Disk reproducing device - Google Patents

Abstract

PURPOSE:To faithfully reproduce a sound signal by executing the rotation control to a spindle motor with an output from the phase comparator circuit of a digital voice reproduction system when a color picture with a digital voice is reproduced. CONSTITUTION:At the time of reproducing a video signal with a digital sound signal, a CVD 2 is reproduced by a pickup 3. For a reproducing signal (a), an FM video signal is extracted by a BPF 9 and supplied to a jitter correcting circuit 10. The circuit 10 supplies a signal to remove the jitter of the FM video signal to a video signal demodulation circuit 11. The circuit 11 supplies the reproducing video signal to a video signal output terminal 15 and a horizontal synchronizing separator circuit 12. On the other hand, for a signal (a) supplied from the pick up 3 to a sound signal reproducing system A, a demodulating clock (b) is extracted and supplied to a phase comparator circuit 6 with a PLL clock extracting circuit 4. For a clock (b) supplied to the circuit 6, the phase comparison with a reference clock is executed from a reference clock oscillation circuit 7, an error signal is supplied to a motor phase compensating circuit 16 and a motor 1 is rotation-controlled.