Patent ID: 7817503
Filing Date: 2010-10-19
Classification: G11B

Abstract:
1. A method for controlling tray ejection of a disk drive that includes a tray for carrying a disk, a detect switch, a DC motor and a firmware, wherein a voltage is applied to the DC motor to move the tray in sequence through a first position, a second position, a third position to a fourth position meanwhile the detect switch is correspondingly shifted in sequence through a first inclined position, a second inclined position, a third inclined position to a fourth inclined position, wherein a first signal is transmitted to the firmware when the detect switch is shifted to the second inclined position, and a second signal is transmitted to the firmware when the detect switch is shifted to the third inclined position, the tray ejection control method comprising the following steps: supplying a first voltage for moving the tray during a first application time; raising said first voltage to a second voltage in order to move the tray when said first application time is elapsed and the first signal is not transmitted to the firmware; maintaining said second voltage during a second application time; and receiving the first signal, wherein a total amount of said first and second application time is less than or equal to a predetermined time.