| 摘要 |
An optical disk drive has a disk slot for a disk to be inserted into, a roller for conveying the disk inserted in the disk slot and having a central region, and a plurality of sensing modules installed in the disk slot for sensing the position of the disk inserted in the disk slot and for enabling the roller to convey the disk while all have sensed the disk. One of the sensing modules is installed adjacent to the central region of the roller.
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