| 摘要 |
PCT No. PCT/JP97/02177 Sec. 371 Date Jun. 9, 1998 Sec. 102(e) Date Jun. 9, 1998 PCT Filed Jun. 24, 1997 PCT Pub. No. WO97/50086 PCT Pub. Date Dec. 31, 1997A disk drive apparatus that provides for a positional relationship between an optical disk and an optical pickup device to be set in a predetermined initial state before an information storage and reproducing operation. The disk drive apparatus includes a disk table that is rotated by a spindle motor and onto which an optical disk is loaded and an optical pickup device for recording and reproducing information on and from the optical disk. The disk drive apparatus further includes a skew sensor for detecting the inclination of a light beam's optical axis relative to the optical disk, a skew control mechanism for adjusting that inclination, a reference portion detected by the skew sensor, and control means. The control means sets the skew control mechanism in its predetermined initial state based on an output from the skew sensor obtained from detection of the reference portion. This disk drive apparatus makes it possible to satisfactorily reproduce optical disks of different kinds regardless of the kind of the optical disk loaded onto the disk table.
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