Patent ID: 6922377

Claim:
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; and periphery detecting means including a switch which is turned on when the reading means is positioned at a track on at least any one of an innermost periphery and an outermost periphery of the recorded disk, wherein, the speed detecting means detects the moving speed of the reading means by an operation that the reading means is moved from the track on at least any one of the innermost and the outermost periphery detected by the periphery detecting means to another track.