Patent ID: 7257055
Filing Date: 2007-08-14
Classification: G11B

Abstract:
1. A method for diagnosing an optical disk drive comprising: (a) utilizing an optical pick-up unit for outputting an incident laser to a track on an optical disk and reading a reflecting laser modulated by the track for generating a tracking error signal and a focusing error signal; (b) calculating a tracking driving signal according to the tracking error signal, and calculating a focusing driving signal according to the focusing error signal; (c) utilizing a firmware of the optical disk drive for mixing a noise with the focusing driving signal to generate a test focusing driving signal; (d) adjusting a position of the optical pick-up unit corresponding to the optical disk according to the test focusing driving signal and the tracking driving signal; and (e) determining whether the focusing error signal outputted from the optical pick-up unit interferes with the tracking error signal outputted from the optical pick-up unit according to the tracking error signal.