| 摘要 |
PROBLEM TO BE SOLVED: To enable an optical information recording and reproducing device to make a relative inclination between an optical head and an optical disk approach zero accurately in a short time with a constitution of a relatively small scale. SOLUTION: A switch 6 is changed over to the side of an amplifier 12 to output a signal (b') to a phase compensating part 13 so that initialization setting of a regenerative signal (b) corresponding to a specific pattern recorded on the optical disk 1 is carried out. Afterward, the switch 6 is switched to the side of a comparator circuit 11 to output a signal (I) to the phase compensating part 13, so that positioning adjustment of the optical disk 1 or the optical head 2 is performed by using an usual regenerative signal so as to make a relative inclination between the optical disk 1 and the optical head 2 zero. |
