Optical disk player and method of controlling optical disk player
AssigneeShinano Kenshi Co., Ltd.
InventorTsuyoshi Harata
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Abstract
The optical disk player of the present invention is capable of controlling rotational speed of an optical disk, on the basis of a shape of the optical disk, so as to stably and efficiently write data in and read data from the optical disk. The optical disk player comprises: a motor for rotating the optical disk; and an optical pickup for irradiating a laser beam to the optical disk and receiving a reflected beam reflected therefrom. A CPU analyzes signals included in the reflected beam so as to recognize a shape of the optical disk. A servo processor controls rotational speed of the optical disk on the basis of the shape of the optical disk recognized by the CPU.
Claims6
An optical disk player, comprising:
- a motor for rotating an optical disk;
- an optical pickup for irradiating a laser beam to the optical disk and receiving a reflected beam reflected therefrom;
- means for analyzing signals included in the reflected beam received by said optical pickup, so as to recognize a shape of the optical disk;
- and
- means for controlling rotational speed of the optical disk on the basis of the shape of the optical disk recognized by said analyzing means.
A method of controlling an optical disk player, comprising the steps of:
- analyzing signals included in a reflected beam reflected from an optical disk, which has been attached in said optical disk player;
- recognizing a shape of the optical disk on the basis of the result of analyzing the signals;
- and
- controlling rotational speed of the optical disk on the basis of the shape of the optical disk.
Dependencies are inferred from the claim text.