Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system
Reexamination Certificate
2005-07-07
2009-06-02
Hindi, Nabil Z (Department: 2627)
Dynamic information storage or retrieval
With servo positioning of transducer assembly over track...
Optical servo system
C369S053190
Reexamination Certificate
active
07542386
ABSTRACT:
An optical disc player for recording/reproducing data on an optical disc, including an optical pickup unit emitting a laser beam to the surface of the optical disc and extracting an RF signal corresponding to the recorded data, a signal size computing unit computing an envelope size of the RF signal, a tilt adjuster adjusting a tilt of the optical disc, and a controller for designating the tilt at a maximum envelope size as an optimal tilt, and controlling the tilt adjuster to change a present tilt based on the optimal tilt. Similarly, it is also possible to designate an optimal skew based on the skew at a maximum envelope size. Accordingly, embodiments of the present invention make it possible to obtain the optimal tilt/skew using the RF envelope.
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Kang Kyung-pil
Kim Min-seok
Hindi Nabil Z
Samsung Electronics Co,. Ltd.
Staas & Halsey , LLP
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