Patent ID: 8050153
Filing Date: 2011-11-01
Classification: G11B

Abstract:
1. A device for adaptively driving a tracking element of an optical disc drive with mechanical deviation, suitable for controlling a motor to drive the tracking element, the device comprising: a memory, for recording a standard moving time relating to the tracking element moving within a fixed distance along a moving path; a motor driver, electrically connected to the motor, for outputting a driving voltage to supply the motor for driving the tracking element in accordance with a control signal; a current detecting circuit, electrically connected to the motor, for detecting a first current value of the motor; and a processor, electrically connected to the memory, the motor driver and the current detecting circuit, the processor is configured for outputting the control signal to the motor driver and measuring a first moving time of the tracking element moving along the fixed distance, wherein the processor controls the motor driver to adjust a voltage gain of the motor based on the relation between the first current value measured by the current detecting circuit and a standard motor current value recorded in the memory, and based on the relation between the first moving time and the standard moving time.