Patent ID: 7106666
Filing Date: 2006-09-12
Classification: G11B

Abstract:
1. An optical disk apparatus which optically performs playback of information from a disk or recording on and playback thereof from the disk, said optical disk apparatus comprising: an optical detector for reading the information recorded on the disk; a position detector for detecting position information indicative of a position relationship between said optical detector and the disk, said position information depending on a state of rotation of the disk; an AC component detector for detecting and storing an AC component of the position information obtained by said position detector and outputting the AC component of the stored position information; a DC component detector for detecting a DC component of the position information obtained by said position detector; a jump signal generator for generating a jump pulse signal for stepwise moving said optical detector relative to the disk; and a processor for, upon reading of information from the disk, generating a drive signal of said optical detector from the position information detected by said position detector and the AC component of the position information outputted from said AC component detector, and generating a drive signal of said optical detector from the AC component of the position information outputted from said AC component detector, the DC component of the position information detected by said DC component detector, and the jump pulse signal generated by said jump signal generator during a jump period in which said optical detector is stepwise moved relative to the disk.