Patent ID: 7570569
Filing Date: 2009-08-04
Classification: G11B,H01S

Abstract:
1. A power control method for an optical disk drive, which has an optical read/write module for accessing an optical storage media, comprising: measuring the temperature of the optical read/write module; predicting a threshold current of the optical read/write module according to the temperature; determining the accessing mode of the optical storage media; measuring the output power of the optical read/write module and a base power in the accessing mode; compensating the computed first current according to the predicted threshold current; and driving the optical read/write module according to the first current, wherein the optical read/write module starts to generate the output power when an operating current of the optical read/write module is larger than the threshold current of the optical read/write module, and the threshold current and the temperature of the optical read/write module are related in a function relationship.