Optical disk apparatus

A linear velocity constant control (CAV control) for controlling a spindle motor so as to set a linear velocity in a track circumferential direction to be constant and an angular velocity constant control (CLV control) for controlling the spindle motor so as to set a rotation of a medium to be const...

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Bibliographic Details
Main Authors TSUJI, TETSUYA, OKAZAKI, NOZOMU, OBATA, KIYOSHI, SAITO, SHUKO
Format Patent
LanguageEnglish
French
German
Published 18.06.1997
Edition6
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:A linear velocity constant control (CAV control) for controlling a spindle motor so as to set a linear velocity in a track circumferential direction to be constant and an angular velocity constant control (CLV control) for controlling the spindle motor so as to set a rotation of a medium to be constant are switched and controlled for a change in position in the radial direction of the medium of a pickup in accordance with a detection result of the medium loaded. In the switching control, selection information of the CLV control and the CAV control is previously registered in accordance with the kind of medium and the CLV control or the CAV control is selected in accordance with the corresponding selection information obtained from the detection result of the medium.
Bibliography:Application Number: EP19960115294