Detector input dark current offset calibration in an optical...

Details Detector input dark current offset calibration in an optical... Detector input dark current offset calibration in an optical...

2005-09-27

2005-09-27

Edun, Muhammad (Department: 2655)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

C369S047100, C369S044270, C369S059100

Reexamination Certificate

active

06950380

ABSTRACT:
A calibration of input signal offset in an optical disk drive is presented. The input signal offsets the input signals received from an optical pick-up unit before digitization. In some embodiments, the input signal offset is set such that the digitized input signals are zero when laser power is off. Further, a thermal drift correction is presented.

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