| 摘要 |
An information reproducing apparatus has: (1) a reference signal generating circuit for generating a first reference signal corresponding to a reproduced signal of main information; (2) a first switching circuit for selecting one of the reproduced signal and the first reference signal; and (3) a controller. The controller, which generates a selection-instructing signal, selects the reproduced signal during reproducing of the main information recorded area, and selects the first reference signal during reproducing of the main information unrecorded area. With this arrangement, when the main information unrecorded area is reproduced, the clock for carrying out the reproducing of main information is synchronized with the first reference signal, which corresponds to the reproduced signal. Thus, when the reproducing area is changed from the main information unrecorded area to the main information recorded area, the synchronizing with the reproduced signal is carried out quickly, thereby improving the reliability of the reproducing process.
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