Generating tracking control output signals for compensating...

Details Generating tracking control output signals for compensating... Generating tracking control output signals for compensating...

2007-08-21

2007-08-21

Young, Wayne (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S053280, C369S044290

Reexamination Certificate

active

10865479

ABSTRACT:
The present disclosure provides systems and methods for tracking of control and error signals in optical disk drives. Successive square waves are generated as a tracking control output signal, and a tracking error signal is generated as a function of both the tracking control output signal and an offset correction factor. Due to the characteristics of the square wave, more reliable tracking is possible by the use of the square wave.

REFERENCES:
patent: 5905703 (1999-05-01), Osada
patent: 6388963 (2002-05-01), Tanaka
patent: 2001/0002893 (2001-06-01), Ohshita et al.

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