Power control method of optical disk drive

Details Power control method of optical disk drive Power control method of optical disk drive

2006-01-26

2009-08-04

Hindi, Nabil Z (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

Reexamination Certificate

active

07570569

ABSTRACT:
A power control method is provided for an optical disk drive. The optical disk drive has an optical read/write module for accessing an optical storage media. The power control method includes the following steps: measuring the temperature of the optical read/write module; predicting a threshold current of the optical read/write module according to the temperature; determine the accessing mode of the optical storage media; measuring the output power of the optical read/write module; computing a first current required for the optical read/write module according to 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.

REFERENCES:
patent: 6671248 (2003-12-01), Miyabata et al.
patent: 7280446 (2007-10-01), Suzuki et al.

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