Method and related apparatus for diagnosing crosstalk within...

Details Method and related apparatus for diagnosing crosstalk within... Method and related apparatus for diagnosing crosstalk within...

2007-08-14

2007-08-14

Neyzari, Ali (Department: 2627)

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

C369S044290

Reexamination Certificate

active

10709410

ABSTRACT:
A method and a related apparatus for diagnosing crosstalk within an optical pick-up unit by utilizing firmware. The method includes calculating a tracking driving signal and a focusing driving signal according to a tracking error signal and a focusing error signal respectively, adding a noise to the focusing driving signal to form a test focusing driving signal through executing firmware, driving an optical pick-up unit by the tracking driving signal and the test focusing driving signal, and diagnosing characteristics of the pick-up unit through observing the tracking error signal.

REFERENCES:
patent: 5870356 (1999-02-01), Ikeda
patent: 5953296 (1999-09-01), Baba
patent: 7196979 (2007-03-01), Kadlec et al.

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