CD disc driving device, CD driving method and CD disc device

Application Number: 00108294
Application Date: 2000.02.09
Publication Number: 1268740
Publication Date: 2000.10.04
Priority Information: 1999/2/9 JP 031634/99
International: G11B7/09;G11B19/20;H02P8/22
Applicant(s) Name: Sony Corp.
Inventor(s) Name: Taketa Takaji;Oishi Seiichiro;Shiomi Tetsuyo
Patent Agency Code: 11105
Patent Agent: huang xiaolin
Abstract A slide-feed drive part (27) uses a stepping motor as a slide-feed motor for changing the position of a optical pick-up (3) with respect to the rotation surface of an optical disk (1), and has a micro-controller (31) provided therein and a slide-feed motor controller (32) both for correcting drive current waveforms to drive the stepping motor. Therefore, by correcting the motor driving waveforms, the optical pick-up (3) can be linearly moved with respect to the rotation of the slide-feed motor (14). It is thereby possible to do away with a position sensor and make a fine positional control of the optical pick-up (3) with no variation. As a result of this, it is possible to provide an optical disk driving apparatus, an optical disk driving method, and an optical disk apparatus, which enhances the linearity of the rotation of the motor with a simple construction.