| 摘要 |
A data reproduction apparatus includes a system controller for monitoring an amount of data in a memory and a linear velocity detected by a linear velocity detecting section, controlling a DC signal output from a DC signal generating section to a disk motor driving section as a drive signal, and controlling interruption and resumption of writing of information to the memory so as to prevent the memory from overflowing. The output DC signal of the DC signal generating section is controlled such that a velocity at which information is written to the memory means is higher than a velocity at which information is read therefrom so as to always store information in the memory, and the linear velocity detected by the linear velocity detecting section becomes close to a preset linear velocity, and the rotation of the disk is controlled by the DC signal. The power consumption required for controlling the rotation of the disk can thus be reduced.
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