Disk driving device and method, recording medium, and program

Abstract

The invention relates to a disk driving device and method, a recording medium, and a program, which can ensure a tracking control. A coefficient switching control unit (152) inquires a coefficient register (153) of a coefficient value and acquires the coefficient value, on the basis of disk information fed from a control unit (161) and indicating the kind of an optical disk (111) loaded into an optical disk device (101), mode information fed from a gain mode switching unit (162) and indicating either a ''write'' mode or a ''read'' mode, and RF information fed from an RF signal detecting unit (151) and indicating whether or not an RF signal has been detected. The coefficient switching control unit (152) feeds the acquired coefficient value to a servo matrix amplifier (118) to create a tracking error signal thereby to ensure the tracking control.

Description

technical field [0001] The present invention relates to an optical disc drive device and method, a recording medium, and a program, and more particularly, the present invention relates to an optical disc drive device and method, a recording medium, and a program for driving an optical disc. Background technique [0002] Recently, optical disc devices for recording various types of data such as images, sounds, etc. on optical discs such as CD (Compact Disc), DVD (Digital Versatile Disc) or reproducing various types of data recorded on the optical disc have been Very popular. An optical disc device includes an optical head that focuses and emits a laser beam onto a signal surface of an optical disc, receives reflected light (return light) reflected from the signal surface, and outputs a reproduced signal and a servo error signal. [0003] Since the optical disc is installed on the main shaft of the optical disc device and driven by rotation, there will often be deviation in t...

AI Technical Summary

Problems solved by technology

However, since the tracking error signal obtained by the single-beam method is modulated according to the presence or absence of an RF signal, its value will change. When the coefficient value of the tracking correction coefficient is not adjusted according to the presence or absence of an RF signal, it cannot be adjusted in the RF signal. In the case of the presence of the signal and the absence of the RF signal, the tracking control is performed by setting the optimal coefficient value, which brings about the problem that the optimal tracking control state cannot be achieved

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