| 摘要 |
<p>PROBLEM TO BE SOLVED: To stably operate a drive system by preventing a mosaic phenomenon, a read-in failure and vibrations, etc., which occur in the conventional case. SOLUTION: This method consists of a step 21 for setting the initial speed of a disk to N-fold, speed a tep 22 for measuring a CES generating duration time (t) of a DSP in playing the disk at prescribed times the speed, steps 23 and 25 for playing the disk at N-fold the speed if t<t1 (1st reference time), and if not, steps 23-25 for discriminating t1 <=t<t2 (2nd reference time), and if so, a step 26 for playing the disk at (N-2)-fold the speed, and then if not, the above-mentioned sequence is repeated, and finally steps 27-29 for starting discriminating tn-1 ((n-1)-th reference time)<=t<tn (n-th reference time), and playing the disk, if so, at double speed, and then, if not, stopping playing the disk.</p> |
