Patent ID: 8369198
Filing Date: 2013-02-05
Classification: G11B

Abstract:
1. A system for driving an optical pick-up unit to form a visible image onto an optical disc, the optical disc being rotated by a spindle motor, the system comprising: a driving circuit, coupled to the optical pick-up unit, for providing a driving signal to drive the optical pick-up unit; and an adjusting circuit, coupled to the driving circuit, for generating a compensation signal according to a rotation source signal corresponding to a rotation of the optical disc; wherein the driving circuit comprises: a draw clock generator, for generating a draw clock and controlling at least one period of the draw clock according to the compensation signal; a draw data generator, coupled to the draw clock generator, for generating a draw data according to the draw clock; and a driving signal generator, coupled to the draw data generator, for converting the draw data into the driving signal.