Patent ID: 8060896

Claim:
A slot-in optical disc drive protection method applied in a slot-in optical disc drive, wherein the slot-in optical disc drive has a transmission unit for providing power to move a sliding member, which is linked to a loading unit for rotating a loading rod to load a disc, one end of a unloading unit is driven by the sliding member, and the other end of the unloading unit rotates an unloading rod to guide or to extract the disc, a receiving unit is used for guiding the disc to be loaded, a positioning bar and the unloading rod work together to guide the disc to be positioned, a sensing unit has a first sensing switch for detecting the action of the unloading unit, a second sensing switch for detecting the action of the receiving unit, and a third sensing switch for detecting the action of the positioning bar, the protection method comprises the following steps: (1) starting to insert a disc; (2) detecting whether the first sensing switch, the second sensing switch and the third sensing switch are all in function, if no, the method returns to step (1), otherwise, the method proceeds to step (3); (3) starting the transmission unit to load the disc automatically; and (4) checking whether the state of the third sensing switch is changed, if no, the disc is continuously loaded, otherwise, the transmission unit is reversed to execute the unloading of the disc, whether the positioning bar is reversed is determined by checking whether the state of the third sensing switch changes such that the disc is detected to be extracted, the sliding member is immediately reversed when the disc is detected to be extracted, and the loading unit and the unloading unit are driven to extract the disc automatically.