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US 2004/0001398 A1Published application
Recorded disk reproducing device
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsAtsushi Okumura, Masayoshi Takehata
Life of this patent
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Abstract
A CPU compares a detected moving speed with a previously set reference moving speed and when the detected moving speed is smaller than the reference moving speed, controls to increase a motor driving voltage VM to be supplied to a motor and when the detected moving speed is larger than the reference moving speed, controls to decrease the motor driving voltage VM to be supplied to the motor 4.
Claims10
A recorded disk reproducing device comprising:
- reading means for reading information recorded on a track of a recorded disk;
- driving means for moving the reading means in a radial direction of the recorded disk;
- speed detecting means for detecting a moving speed of the reading means according to a relationship between a moving time of the reading means moved by the driving means and the number of tracks over which the reading means passes in the moving time;
- voltage control means which compares a detected moving speed detected by the speed detecting means with a previously set reference moving speed and when the detected moving speed is smaller than the reference moving speed, controls to increase a power supply voltage to be supplied to the driving means, and when the detected moving speed is larger than the reference moving speed, controls to decrease the power supply voltage to be supplied to the driving means.
1 more element
Dependencies are inferred from the claim text.