| 摘要 |
An apparatus for recording and reproducing given data to and from a disc-like recording medium which is rotated by a constant linear velocity (CLV) method. In this apparatus, the rotational speed of a driving means is controlled in accordance with a first rotational speed signal of this means in seek operation in which an optical pickup is shifted to the target position of the disc-like recording medium. When the shift of the optical pickup to the target position is detected by the output of a position detecting means, the rotational speed of the driving means is controlled by a second rotational speed signal which is obtainable from the disc-like recording medium. Immediately after the termination of the seek operation, the disc-like recording medium can be rotated instantaneously in accordance with the second rotational speed signal. In this way, it is possible to materialize an optical disc apparatus such that the time required for the seek operation is shortened to that extent. |
